/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:52:05,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:52:05,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:52:05,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 16:52:05,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 16:52:05,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 16:52:05,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 16:52:05,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 16:52:05,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 16:52:05,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 16:52:05,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 16:52:05,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 16:52:05,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 16:52:05,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 16:52:05,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 16:52:05,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 16:52:05,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-03 16:52:05,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:52:05,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:52:05,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:52:05,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 16:52:05,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:52:05,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:52:05,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:52:05,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:52:05,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:52:05,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:52:05,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:52:05,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:52:05,919 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:52:05,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:52:05,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:52:05,921 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:52:05,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:52:05,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:52:05,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:52:05,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:52:05,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:52:05,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:52:05,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:52:05,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:52:05,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:52:05,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:52:05,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:52:05,922 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:52:05,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:52:05,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:52:06,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:52:06,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:52:06,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:52:06,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:52:06,157 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:52:06,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-03-03 16:52:06,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cd38cfd/e834f07f95c847e3b4393c4c6b601a3e/FLAGe8a9e0cdc [2022-03-03 16:52:06,594 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:52:06,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-03-03 16:52:06,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cd38cfd/e834f07f95c847e3b4393c4c6b601a3e/FLAGe8a9e0cdc [2022-03-03 16:52:06,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cd38cfd/e834f07f95c847e3b4393c4c6b601a3e [2022-03-03 16:52:06,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:52:06,625 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:52:06,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:52:06,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:52:06,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:52:06,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696f8a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06, skipping insertion in model container [2022-03-03 16:52:06,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:52:06,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:52:06,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-03-03 16:52:06,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:52:06,814 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:52:06,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-03-03 16:52:06,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:52:06,860 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:52:06,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06 WrapperNode [2022-03-03 16:52:06,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:52:06,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:52:06,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:52:06,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:52:06,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,902 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2022-03-03 16:52:06,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:52:06,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:52:06,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:52:06,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:52:06,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:52:06,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:52:06,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:52:06,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:52:06,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (1/1) ... [2022-03-03 16:52:06,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:52:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:52:06,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 16:52:07,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 16:52:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:52:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 16:52:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 16:52:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 16:52:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 16:52:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:52:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:52:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:52:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-03 16:52:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:52:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:52:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 16:52:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:52:07,036 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:52:07,154 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:52:07,155 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:52:07,416 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:52:07,425 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:52:07,425 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-03 16:52:07,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:52:07 BoogieIcfgContainer [2022-03-03 16:52:07,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:52:07,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:52:07,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:52:07,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:52:07,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:52:06" (1/3) ... [2022-03-03 16:52:07,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9808d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:52:07, skipping insertion in model container [2022-03-03 16:52:07,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:52:06" (2/3) ... [2022-03-03 16:52:07,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9808d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:52:07, skipping insertion in model container [2022-03-03 16:52:07,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:52:07" (3/3) ... [2022-03-03 16:52:07,442 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-03-03 16:52:07,445 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:52:07,446 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:52:07,446 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:52:07,446 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:52:07,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,494 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,495 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,505 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,506 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,508 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,508 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,508 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,508 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,508 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,508 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,508 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,509 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,509 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,509 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,509 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,509 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,512 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,512 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,512 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,512 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,512 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,512 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,513 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,514 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,515 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,519 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,520 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,521 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,524 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,525 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,532 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:52:07,534 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-03 16:52:07,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:52:07,578 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:52:07,578 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 16:52:07,587 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 208 places, 222 transitions, 460 flow [2022-03-03 16:52:07,740 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:07,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-03 16:52:07,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:07,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:07,822 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1784504573, now seen corresponding path program 1 times [2022-03-03 16:52:07,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:07,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832658375] [2022-03-03 16:52:07,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:07,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:52:08,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:08,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832658375] [2022-03-03 16:52:08,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832658375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:08,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:08,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 16:52:08,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39647811] [2022-03-03 16:52:08,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:08,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 16:52:08,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:08,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 16:52:08,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:52:08,100 INFO L87 Difference]: Start difference. First operand has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:08,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:08,169 INFO L93 Difference]: Finished difference Result 5325 states and 15084 transitions. [2022-03-03 16:52:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 16:52:08,171 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-03-03 16:52:08,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:08,217 INFO L225 Difference]: With dead ends: 5325 [2022-03-03 16:52:08,217 INFO L226 Difference]: Without dead ends: 5035 [2022-03-03 16:52:08,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:52:08,223 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:08,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2022-03-03 16:52:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5035. [2022-03-03 16:52:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 5034 states have (on average 2.8363130711164084) internal successors, (14278), 5034 states have internal predecessors, (14278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 14278 transitions. [2022-03-03 16:52:08,471 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 14278 transitions. Word has length 127 [2022-03-03 16:52:08,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:08,472 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 14278 transitions. [2022-03-03 16:52:08,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 14278 transitions. [2022-03-03 16:52:08,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-03 16:52:08,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:08,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:08,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:52:08,516 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash 987407205, now seen corresponding path program 1 times [2022-03-03 16:52:08,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:08,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473040939] [2022-03-03 16:52:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:52:08,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:08,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473040939] [2022-03-03 16:52:08,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473040939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:08,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:08,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 16:52:08,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978341740] [2022-03-03 16:52:08,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:08,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 16:52:08,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:08,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 16:52:08,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-03 16:52:08,725 INFO L87 Difference]: Start difference. First operand 5035 states and 14278 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:08,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:08,823 INFO L93 Difference]: Finished difference Result 5047 states and 14290 transitions. [2022-03-03 16:52:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 16:52:08,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-03-03 16:52:08,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:08,843 INFO L225 Difference]: With dead ends: 5047 [2022-03-03 16:52:08,843 INFO L226 Difference]: Without dead ends: 5047 [2022-03-03 16:52:08,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:52:08,844 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 342 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:08,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 384 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:08,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2022-03-03 16:52:08,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 5037. [2022-03-03 16:52:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5037 states, 5036 states have (on average 2.835583796664019) internal successors, (14280), 5036 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:09,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 14280 transitions. [2022-03-03 16:52:09,036 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 14280 transitions. Word has length 127 [2022-03-03 16:52:09,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:09,036 INFO L470 AbstractCegarLoop]: Abstraction has 5037 states and 14280 transitions. [2022-03-03 16:52:09,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 14280 transitions. [2022-03-03 16:52:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-03 16:52:09,046 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:09,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:09,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:52:09,046 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:09,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1848078548, now seen corresponding path program 1 times [2022-03-03 16:52:09,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:09,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787577897] [2022-03-03 16:52:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:09,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 16:52:09,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:09,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787577897] [2022-03-03 16:52:09,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787577897] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:52:09,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375847144] [2022-03-03 16:52:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:09,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:52:09,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:52:09,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:52:09,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 16:52:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:09,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-03 16:52:09,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:52:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 16:52:09,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:52:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 16:52:09,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375847144] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:52:09,888 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:52:09,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-03-03 16:52:09,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175968806] [2022-03-03 16:52:09,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:52:09,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 16:52:09,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 16:52:09,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-03-03 16:52:09,890 INFO L87 Difference]: Start difference. First operand 5037 states and 14280 transitions. Second operand has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:10,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:10,075 INFO L93 Difference]: Finished difference Result 5065 states and 14308 transitions. [2022-03-03 16:52:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 16:52:10,076 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-03 16:52:10,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:10,098 INFO L225 Difference]: With dead ends: 5065 [2022-03-03 16:52:10,098 INFO L226 Difference]: Without dead ends: 5065 [2022-03-03 16:52:10,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:52:10,102 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 610 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:10,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 914 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:52:10,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2022-03-03 16:52:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 5065. [2022-03-03 16:52:10,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5065 states, 5064 states have (on average 2.825434439178515) internal successors, (14308), 5064 states have internal predecessors, (14308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 14308 transitions. [2022-03-03 16:52:10,229 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 14308 transitions. Word has length 141 [2022-03-03 16:52:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:10,231 INFO L470 AbstractCegarLoop]: Abstraction has 5065 states and 14308 transitions. [2022-03-03 16:52:10,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 14308 transitions. [2022-03-03 16:52:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-03 16:52:10,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:10,242 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:10,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-03 16:52:10,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:52:10,456 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:10,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1234184308, now seen corresponding path program 2 times [2022-03-03 16:52:10,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:10,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346959580] [2022-03-03 16:52:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:10,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:10,590 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 16:52:10,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:10,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346959580] [2022-03-03 16:52:10,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346959580] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:52:10,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316899951] [2022-03-03 16:52:10,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 16:52:10,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:52:10,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:52:10,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:52:10,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 16:52:10,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-03 16:52:10,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:52:10,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-03 16:52:10,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:52:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-03 16:52:10,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 16:52:10,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316899951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:10,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 16:52:10,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-03-03 16:52:10,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320854476] [2022-03-03 16:52:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:10,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:10,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:10,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:10,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-03-03 16:52:10,986 INFO L87 Difference]: Start difference. First operand 5065 states and 14308 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:11,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:11,158 INFO L93 Difference]: Finished difference Result 8738 states and 24927 transitions. [2022-03-03 16:52:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 16:52:11,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-03-03 16:52:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:11,184 INFO L225 Difference]: With dead ends: 8738 [2022-03-03 16:52:11,185 INFO L226 Difference]: Without dead ends: 8738 [2022-03-03 16:52:11,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:11,186 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 340 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:11,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1126 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:52:11,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2022-03-03 16:52:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 5953. [2022-03-03 16:52:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5953 states, 5952 states have (on average 2.827284946236559) internal successors, (16828), 5952 states have internal predecessors, (16828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5953 states to 5953 states and 16828 transitions. [2022-03-03 16:52:11,320 INFO L78 Accepts]: Start accepts. Automaton has 5953 states and 16828 transitions. Word has length 169 [2022-03-03 16:52:11,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:11,320 INFO L470 AbstractCegarLoop]: Abstraction has 5953 states and 16828 transitions. [2022-03-03 16:52:11,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:11,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5953 states and 16828 transitions. [2022-03-03 16:52:11,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-03 16:52:11,333 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:11,333 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:11,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-03 16:52:11,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-03 16:52:11,546 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:11,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1857872626, now seen corresponding path program 3 times [2022-03-03 16:52:11,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:11,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997866362] [2022-03-03 16:52:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:11,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 16:52:11,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:11,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997866362] [2022-03-03 16:52:11,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997866362] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:52:11,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763076839] [2022-03-03 16:52:11,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 16:52:11,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:52:11,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:52:11,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:52:11,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 16:52:11,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-03-03 16:52:11,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:52:11,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-03 16:52:11,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:52:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-03 16:52:12,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-03 16:52:12,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763076839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:12,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-03 16:52:12,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-03-03 16:52:12,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940116766] [2022-03-03 16:52:12,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:12,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:12,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:12,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:12,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-03-03 16:52:12,094 INFO L87 Difference]: Start difference. First operand 5953 states and 16828 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:12,264 INFO L93 Difference]: Finished difference Result 9654 states and 27532 transitions. [2022-03-03 16:52:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:12,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-03-03 16:52:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:12,299 INFO L225 Difference]: With dead ends: 9654 [2022-03-03 16:52:12,305 INFO L226 Difference]: Without dead ends: 9654 [2022-03-03 16:52:12,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-03-03 16:52:12,306 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 323 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:12,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1200 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:52:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9654 states. [2022-03-03 16:52:12,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9654 to 5985. [2022-03-03 16:52:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5985 states, 5984 states have (on average 2.8275401069518717) internal successors, (16920), 5984 states have internal predecessors, (16920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 16920 transitions. [2022-03-03 16:52:12,484 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 16920 transitions. Word has length 169 [2022-03-03 16:52:12,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:12,485 INFO L470 AbstractCegarLoop]: Abstraction has 5985 states and 16920 transitions. [2022-03-03 16:52:12,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 16920 transitions. [2022-03-03 16:52:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-03 16:52:12,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:12,497 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:12,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 16:52:12,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:52:12,714 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:12,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:12,714 INFO L85 PathProgramCache]: Analyzing trace with hash 453420382, now seen corresponding path program 4 times [2022-03-03 16:52:12,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:12,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011006642] [2022-03-03 16:52:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:12,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:12,839 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 16:52:12,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:12,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011006642] [2022-03-03 16:52:12,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011006642] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:52:12,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956555003] [2022-03-03 16:52:12,841 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 16:52:12,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:52:12,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:52:12,860 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:52:12,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 16:52:12,942 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 16:52:12,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:52:12,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-03 16:52:12,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:52:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 16:52:13,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:52:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-03 16:52:13,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956555003] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:52:13,470 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:52:13,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-03-03 16:52:13,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538373137] [2022-03-03 16:52:13,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:52:13,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-03 16:52:13,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-03 16:52:13,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:52:13,472 INFO L87 Difference]: Start difference. First operand 5985 states and 16920 transitions. Second operand has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:13,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:13,724 INFO L93 Difference]: Finished difference Result 6013 states and 16948 transitions. [2022-03-03 16:52:13,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:52:13,725 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-03-03 16:52:13,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:13,738 INFO L225 Difference]: With dead ends: 6013 [2022-03-03 16:52:13,738 INFO L226 Difference]: Without dead ends: 6013 [2022-03-03 16:52:13,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 326 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:52:13,739 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 937 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:13,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 1225 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:52:13,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-03-03 16:52:13,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 6013. [2022-03-03 16:52:13,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 2.8190286094477712) internal successors, (16948), 6012 states have internal predecessors, (16948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16948 transitions. [2022-03-03 16:52:13,853 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16948 transitions. Word has length 169 [2022-03-03 16:52:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:13,854 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16948 transitions. [2022-03-03 16:52:13,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:13,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16948 transitions. [2022-03-03 16:52:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:13,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:13,864 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:13,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 16:52:14,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:52:14,081 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:14,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:14,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1083808322, now seen corresponding path program 5 times [2022-03-03 16:52:14,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:14,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036620352] [2022-03-03 16:52:14,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:14,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:14,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:14,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036620352] [2022-03-03 16:52:14,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036620352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:14,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:14,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:14,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233810753] [2022-03-03 16:52:14,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:14,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:14,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:14,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:14,175 INFO L87 Difference]: Start difference. First operand 6013 states and 16948 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:14,296 INFO L93 Difference]: Finished difference Result 8978 states and 25546 transitions. [2022-03-03 16:52:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:14,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:14,318 INFO L225 Difference]: With dead ends: 8978 [2022-03-03 16:52:14,319 INFO L226 Difference]: Without dead ends: 8966 [2022-03-03 16:52:14,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-03 16:52:14,320 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 287 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:14,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 935 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8966 states. [2022-03-03 16:52:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8966 to 6013. [2022-03-03 16:52:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 2.8183632734530937) internal successors, (16944), 6012 states have internal predecessors, (16944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16944 transitions. [2022-03-03 16:52:14,457 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16944 transitions. Word has length 197 [2022-03-03 16:52:14,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:14,458 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16944 transitions. [2022-03-03 16:52:14,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16944 transitions. [2022-03-03 16:52:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:14,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:14,468 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:14,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 16:52:14,468 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1457173220, now seen corresponding path program 6 times [2022-03-03 16:52:14,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:14,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950949538] [2022-03-03 16:52:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:14,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:14,587 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:14,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:14,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950949538] [2022-03-03 16:52:14,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950949538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:14,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:14,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:14,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431447813] [2022-03-03 16:52:14,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:14,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:14,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:14,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:14,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:14,588 INFO L87 Difference]: Start difference. First operand 6013 states and 16944 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:14,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:14,693 INFO L93 Difference]: Finished difference Result 10058 states and 28610 transitions. [2022-03-03 16:52:14,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:14,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:14,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:14,720 INFO L225 Difference]: With dead ends: 10058 [2022-03-03 16:52:14,720 INFO L226 Difference]: Without dead ends: 10058 [2022-03-03 16:52:14,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:52:14,721 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 218 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:14,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1110 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2022-03-03 16:52:14,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 6109. [2022-03-03 16:52:14,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6109 states, 6108 states have (on average 2.819253438113949) internal successors, (17220), 6108 states have internal predecessors, (17220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 17220 transitions. [2022-03-03 16:52:14,868 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 17220 transitions. Word has length 197 [2022-03-03 16:52:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:14,868 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 17220 transitions. [2022-03-03 16:52:14,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 17220 transitions. [2022-03-03 16:52:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:14,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:14,881 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:14,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 16:52:14,881 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:14,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:14,881 INFO L85 PathProgramCache]: Analyzing trace with hash 52720976, now seen corresponding path program 7 times [2022-03-03 16:52:14,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:14,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748709103] [2022-03-03 16:52:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:14,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:14,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:14,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748709103] [2022-03-03 16:52:14,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748709103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:14,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:14,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:14,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070195139] [2022-03-03 16:52:14,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:14,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:14,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:14,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:14,977 INFO L87 Difference]: Start difference. First operand 6109 states and 17220 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:15,091 INFO L93 Difference]: Finished difference Result 10142 states and 28841 transitions. [2022-03-03 16:52:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:15,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:15,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:15,113 INFO L225 Difference]: With dead ends: 10142 [2022-03-03 16:52:15,114 INFO L226 Difference]: Without dead ends: 10130 [2022-03-03 16:52:15,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:15,114 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 285 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:15,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1062 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10130 states. [2022-03-03 16:52:15,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10130 to 6077. [2022-03-03 16:52:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.8189598420013167) internal successors, (17128), 6076 states have internal predecessors, (17128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17128 transitions. [2022-03-03 16:52:15,236 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17128 transitions. Word has length 197 [2022-03-03 16:52:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:15,236 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17128 transitions. [2022-03-03 16:52:15,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17128 transitions. [2022-03-03 16:52:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:15,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:15,247 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:15,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 16:52:15,248 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:15,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:15,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1650902898, now seen corresponding path program 8 times [2022-03-03 16:52:15,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:15,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740334485] [2022-03-03 16:52:15,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:15,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:15,315 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:15,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:15,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740334485] [2022-03-03 16:52:15,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740334485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:15,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:15,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:15,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941668770] [2022-03-03 16:52:15,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:15,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:15,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:15,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:15,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:15,317 INFO L87 Difference]: Start difference. First operand 6077 states and 17128 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:15,414 INFO L93 Difference]: Finished difference Result 9138 states and 25986 transitions. [2022-03-03 16:52:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:15,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:15,435 INFO L225 Difference]: With dead ends: 9138 [2022-03-03 16:52:15,435 INFO L226 Difference]: Without dead ends: 9102 [2022-03-03 16:52:15,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:15,436 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 178 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:15,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:15,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-03-03 16:52:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 6077. [2022-03-03 16:52:15,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.8176431863067806) internal successors, (17120), 6076 states have internal predecessors, (17120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17120 transitions. [2022-03-03 16:52:15,560 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17120 transitions. Word has length 197 [2022-03-03 16:52:15,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:15,560 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17120 transitions. [2022-03-03 16:52:15,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17120 transitions. [2022-03-03 16:52:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:15,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:15,570 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:15,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 16:52:15,570 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash -894162494, now seen corresponding path program 9 times [2022-03-03 16:52:15,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:15,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967734546] [2022-03-03 16:52:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:15,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:15,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967734546] [2022-03-03 16:52:15,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967734546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:15,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:15,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:15,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265537256] [2022-03-03 16:52:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:15,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:15,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:15,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:15,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:15,675 INFO L87 Difference]: Start difference. First operand 6077 states and 17120 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:15,777 INFO L93 Difference]: Finished difference Result 9645 states and 27438 transitions. [2022-03-03 16:52:15,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:15,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:15,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:15,799 INFO L225 Difference]: With dead ends: 9645 [2022-03-03 16:52:15,799 INFO L226 Difference]: Without dead ends: 9645 [2022-03-03 16:52:15,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:15,799 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 195 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:15,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 987 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:15,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2022-03-03 16:52:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 5328. [2022-03-03 16:52:15,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 2.819598272949127) internal successors, (15020), 5327 states have internal predecessors, (15020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 15020 transitions. [2022-03-03 16:52:15,908 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 15020 transitions. Word has length 197 [2022-03-03 16:52:15,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:15,908 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 15020 transitions. [2022-03-03 16:52:15,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:15,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 15020 transitions. [2022-03-03 16:52:15,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:15,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:15,916 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:15,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 16:52:15,916 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:15,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1996352558, now seen corresponding path program 10 times [2022-03-03 16:52:15,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:15,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514318544] [2022-03-03 16:52:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:15,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:16,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:16,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514318544] [2022-03-03 16:52:16,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514318544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:16,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:16,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:16,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118514896] [2022-03-03 16:52:16,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:16,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:16,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:16,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:16,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:16,007 INFO L87 Difference]: Start difference. First operand 5328 states and 15020 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:16,106 INFO L93 Difference]: Finished difference Result 9729 states and 27669 transitions. [2022-03-03 16:52:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:16,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:16,127 INFO L225 Difference]: With dead ends: 9729 [2022-03-03 16:52:16,127 INFO L226 Difference]: Without dead ends: 9717 [2022-03-03 16:52:16,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:16,128 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 313 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:16,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1026 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2022-03-03 16:52:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 5296. [2022-03-03 16:52:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 2.8192634560906518) internal successors, (14928), 5295 states have internal predecessors, (14928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 14928 transitions. [2022-03-03 16:52:16,237 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 14928 transitions. Word has length 197 [2022-03-03 16:52:16,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:16,237 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 14928 transitions. [2022-03-03 16:52:16,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 14928 transitions. [2022-03-03 16:52:16,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:16,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:16,257 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:16,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 16:52:16,257 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash -700432816, now seen corresponding path program 11 times [2022-03-03 16:52:16,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:16,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008542171] [2022-03-03 16:52:16,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:16,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:16,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:16,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008542171] [2022-03-03 16:52:16,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008542171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:16,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:16,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:16,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415559292] [2022-03-03 16:52:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:16,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:16,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:16,334 INFO L87 Difference]: Start difference. First operand 5296 states and 14928 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:16,437 INFO L93 Difference]: Finished difference Result 9645 states and 27422 transitions. [2022-03-03 16:52:16,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:16,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:16,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:16,457 INFO L225 Difference]: With dead ends: 9645 [2022-03-03 16:52:16,457 INFO L226 Difference]: Without dead ends: 9609 [2022-03-03 16:52:16,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-03 16:52:16,458 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 172 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:16,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1208 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:16,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2022-03-03 16:52:16,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 5232. [2022-03-03 16:52:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5232 states, 5231 states have (on average 2.8185815331676545) internal successors, (14744), 5231 states have internal predecessors, (14744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 14744 transitions. [2022-03-03 16:52:16,564 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 14744 transitions. Word has length 197 [2022-03-03 16:52:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:16,565 INFO L470 AbstractCegarLoop]: Abstraction has 5232 states and 14744 transitions. [2022-03-03 16:52:16,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 14744 transitions. [2022-03-03 16:52:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:16,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:16,611 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:16,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 16:52:16,611 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:16,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:16,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1635372850, now seen corresponding path program 12 times [2022-03-03 16:52:16,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:16,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588788665] [2022-03-03 16:52:16,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:16,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:16,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:16,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588788665] [2022-03-03 16:52:16,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588788665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:16,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:16,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:16,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279067955] [2022-03-03 16:52:16,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:16,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:16,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:16,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:16,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:16,695 INFO L87 Difference]: Start difference. First operand 5232 states and 14744 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:16,786 INFO L93 Difference]: Finished difference Result 10585 states and 29897 transitions. [2022-03-03 16:52:16,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:16,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:16,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:16,809 INFO L225 Difference]: With dead ends: 10585 [2022-03-03 16:52:16,809 INFO L226 Difference]: Without dead ends: 10585 [2022-03-03 16:52:16,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:52:16,810 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 392 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:16,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 839 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:16,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-03-03 16:52:16,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 6246. [2022-03-03 16:52:16,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6246 states, 6245 states have (on average 2.8294635708566855) internal successors, (17670), 6245 states have internal predecessors, (17670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 17670 transitions. [2022-03-03 16:52:16,938 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 17670 transitions. Word has length 197 [2022-03-03 16:52:16,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:16,939 INFO L470 AbstractCegarLoop]: Abstraction has 6246 states and 17670 transitions. [2022-03-03 16:52:16,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:16,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 17670 transitions. [2022-03-03 16:52:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:16,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:16,946 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:16,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 16:52:16,946 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:16,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash -550869130, now seen corresponding path program 13 times [2022-03-03 16:52:16,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:16,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933977727] [2022-03-03 16:52:16,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:16,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:17,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:17,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933977727] [2022-03-03 16:52:17,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933977727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:17,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:17,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:17,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039084529] [2022-03-03 16:52:17,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:17,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:17,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:17,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:17,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:17,019 INFO L87 Difference]: Start difference. First operand 6246 states and 17670 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:17,106 INFO L93 Difference]: Finished difference Result 11311 states and 32155 transitions. [2022-03-03 16:52:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:17,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:17,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:17,131 INFO L225 Difference]: With dead ends: 11311 [2022-03-03 16:52:17,131 INFO L226 Difference]: Without dead ends: 11311 [2022-03-03 16:52:17,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:52:17,132 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 358 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:17,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 792 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-03-03 16:52:17,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 6190. [2022-03-03 16:52:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 2.8301825820003232) internal successors, (17516), 6189 states have internal predecessors, (17516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-03-03 16:52:17,251 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-03-03 16:52:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:17,251 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-03-03 16:52:17,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-03-03 16:52:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:17,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:17,258 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:17,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 16:52:17,258 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2031567104, now seen corresponding path program 14 times [2022-03-03 16:52:17,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:17,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126028833] [2022-03-03 16:52:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:17,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:17,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:17,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126028833] [2022-03-03 16:52:17,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126028833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:17,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:17,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:17,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084648859] [2022-03-03 16:52:17,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:17,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:17,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:17,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:17,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:17,335 INFO L87 Difference]: Start difference. First operand 6190 states and 17516 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:17,409 INFO L93 Difference]: Finished difference Result 9994 states and 28468 transitions. [2022-03-03 16:52:17,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:17,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:17,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:17,430 INFO L225 Difference]: With dead ends: 9994 [2022-03-03 16:52:17,430 INFO L226 Difference]: Without dead ends: 9994 [2022-03-03 16:52:17,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:52:17,431 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 267 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:17,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 824 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9994 states. [2022-03-03 16:52:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9994 to 6190. [2022-03-03 16:52:17,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 2.8301825820003232) internal successors, (17516), 6189 states have internal predecessors, (17516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-03-03 16:52:17,593 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-03-03 16:52:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:17,593 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-03-03 16:52:17,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-03-03 16:52:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-03 16:52:17,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:17,602 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:17,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 16:52:17,602 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:17,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:17,603 INFO L85 PathProgramCache]: Analyzing trace with hash -697665538, now seen corresponding path program 15 times [2022-03-03 16:52:17,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:17,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851877061] [2022-03-03 16:52:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:17,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:17,682 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:17,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:17,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851877061] [2022-03-03 16:52:17,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851877061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:17,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:17,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:17,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594895844] [2022-03-03 16:52:17,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:17,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:17,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:17,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:17,684 INFO L87 Difference]: Start difference. First operand 6190 states and 17516 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:17,785 INFO L93 Difference]: Finished difference Result 10757 states and 30680 transitions. [2022-03-03 16:52:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:17,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-03 16:52:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:17,810 INFO L225 Difference]: With dead ends: 10757 [2022-03-03 16:52:17,811 INFO L226 Difference]: Without dead ends: 10757 [2022-03-03 16:52:17,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:17,811 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 349 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:17,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 791 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:17,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-03-03 16:52:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 5378. [2022-03-03 16:52:17,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.8244374186349264) internal successors, (15187), 5377 states have internal predecessors, (15187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15187 transitions. [2022-03-03 16:52:17,957 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15187 transitions. Word has length 197 [2022-03-03 16:52:17,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:17,958 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15187 transitions. [2022-03-03 16:52:17,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:17,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15187 transitions. [2022-03-03 16:52:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-03 16:52:17,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:17,965 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:17,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 16:52:17,966 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:17,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1998923460, now seen corresponding path program 1 times [2022-03-03 16:52:17,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:17,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696910266] [2022-03-03 16:52:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:17,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:18,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:18,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696910266] [2022-03-03 16:52:18,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696910266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:18,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:18,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:18,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244515020] [2022-03-03 16:52:18,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:18,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:18,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:18,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:18,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:18,035 INFO L87 Difference]: Start difference. First operand 5378 states and 15187 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:18,121 INFO L93 Difference]: Finished difference Result 9593 states and 26922 transitions. [2022-03-03 16:52:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 16:52:18,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-03-03 16:52:18,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:18,140 INFO L225 Difference]: With dead ends: 9593 [2022-03-03 16:52:18,140 INFO L226 Difference]: Without dead ends: 9470 [2022-03-03 16:52:18,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-03 16:52:18,140 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 239 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:18,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 1137 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:18,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2022-03-03 16:52:18,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 5378. [2022-03-03 16:52:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.820345917798029) internal successors, (15165), 5377 states have internal predecessors, (15165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15165 transitions. [2022-03-03 16:52:18,254 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15165 transitions. Word has length 210 [2022-03-03 16:52:18,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:18,254 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15165 transitions. [2022-03-03 16:52:18,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15165 transitions. [2022-03-03 16:52:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-03 16:52:18,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:18,262 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:18,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 16:52:18,262 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:18,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:18,262 INFO L85 PathProgramCache]: Analyzing trace with hash 856042914, now seen corresponding path program 2 times [2022-03-03 16:52:18,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:18,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612863633] [2022-03-03 16:52:18,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:18,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:18,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:18,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612863633] [2022-03-03 16:52:18,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612863633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:18,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:18,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:18,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611832831] [2022-03-03 16:52:18,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:18,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:18,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:18,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:18,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:18,336 INFO L87 Difference]: Start difference. First operand 5378 states and 15165 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:18,456 INFO L93 Difference]: Finished difference Result 11347 states and 31759 transitions. [2022-03-03 16:52:18,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:18,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-03-03 16:52:18,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:18,478 INFO L225 Difference]: With dead ends: 11347 [2022-03-03 16:52:18,478 INFO L226 Difference]: Without dead ends: 11302 [2022-03-03 16:52:18,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-03 16:52:18,479 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 308 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:18,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1195 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-03-03 16:52:18,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 5442. [2022-03-03 16:52:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.8195184708693253) internal successors, (15341), 5441 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 15341 transitions. [2022-03-03 16:52:18,604 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 15341 transitions. Word has length 210 [2022-03-03 16:52:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:18,605 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 15341 transitions. [2022-03-03 16:52:18,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 15341 transitions. [2022-03-03 16:52:18,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-03 16:52:18,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:18,612 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:18,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 16:52:18,613 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:18,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1193971804, now seen corresponding path program 3 times [2022-03-03 16:52:18,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:18,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181773774] [2022-03-03 16:52:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:18,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:18,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:18,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181773774] [2022-03-03 16:52:18,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181773774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:18,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:18,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:18,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183860333] [2022-03-03 16:52:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:18,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:18,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:18,700 INFO L87 Difference]: Start difference. First operand 5442 states and 15341 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:18,823 INFO L93 Difference]: Finished difference Result 11071 states and 31168 transitions. [2022-03-03 16:52:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:18,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-03-03 16:52:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:18,869 INFO L225 Difference]: With dead ends: 11071 [2022-03-03 16:52:18,870 INFO L226 Difference]: Without dead ends: 11056 [2022-03-03 16:52:18,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:18,871 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 373 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:18,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1009 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:18,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-03-03 16:52:18,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5474. [2022-03-03 16:52:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8191120043851634) internal successors, (15429), 5473 states have internal predecessors, (15429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15429 transitions. [2022-03-03 16:52:18,978 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15429 transitions. Word has length 210 [2022-03-03 16:52:18,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:18,978 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15429 transitions. [2022-03-03 16:52:18,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:18,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15429 transitions. [2022-03-03 16:52:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-03 16:52:18,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:18,985 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:18,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 16:52:18,985 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:18,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:18,986 INFO L85 PathProgramCache]: Analyzing trace with hash -273025212, now seen corresponding path program 1 times [2022-03-03 16:52:18,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:18,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021234883] [2022-03-03 16:52:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:18,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:19,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:19,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021234883] [2022-03-03 16:52:19,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021234883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:19,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:19,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:19,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419171032] [2022-03-03 16:52:19,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:19,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:19,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:19,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:19,057 INFO L87 Difference]: Start difference. First operand 5474 states and 15429 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:19,123 INFO L93 Difference]: Finished difference Result 8999 states and 25587 transitions. [2022-03-03 16:52:19,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:19,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-03-03 16:52:19,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:19,138 INFO L225 Difference]: With dead ends: 8999 [2022-03-03 16:52:19,138 INFO L226 Difference]: Without dead ends: 8915 [2022-03-03 16:52:19,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:19,138 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:19,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 850 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:19,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2022-03-03 16:52:19,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 5474. [2022-03-03 16:52:19,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8161885620317926) internal successors, (15413), 5473 states have internal predecessors, (15413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15413 transitions. [2022-03-03 16:52:19,232 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15413 transitions. Word has length 210 [2022-03-03 16:52:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:19,232 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15413 transitions. [2022-03-03 16:52:19,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15413 transitions. [2022-03-03 16:52:19,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-03 16:52:19,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:19,240 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:19,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 16:52:19,240 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:19,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:19,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1505777182, now seen corresponding path program 4 times [2022-03-03 16:52:19,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:19,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608540249] [2022-03-03 16:52:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:19,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:19,303 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:19,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:19,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608540249] [2022-03-03 16:52:19,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608540249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:19,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:19,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:19,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920343457] [2022-03-03 16:52:19,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:19,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:19,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:19,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:19,305 INFO L87 Difference]: Start difference. First operand 5474 states and 15413 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:19,417 INFO L93 Difference]: Finished difference Result 10365 states and 29272 transitions. [2022-03-03 16:52:19,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:19,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-03-03 16:52:19,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:19,434 INFO L225 Difference]: With dead ends: 10365 [2022-03-03 16:52:19,434 INFO L226 Difference]: Without dead ends: 10320 [2022-03-03 16:52:19,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:19,436 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 230 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:19,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1224 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:52:19,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10320 states. [2022-03-03 16:52:19,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10320 to 5474. [2022-03-03 16:52:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8147268408551067) internal successors, (15405), 5473 states have internal predecessors, (15405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15405 transitions. [2022-03-03 16:52:19,539 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15405 transitions. Word has length 210 [2022-03-03 16:52:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:19,539 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15405 transitions. [2022-03-03 16:52:19,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15405 transitions. [2022-03-03 16:52:19,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-03 16:52:19,546 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:19,547 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:19,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 16:52:19,547 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:19,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1167848292, now seen corresponding path program 5 times [2022-03-03 16:52:19,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:19,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746457526] [2022-03-03 16:52:19,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:19,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:19,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:19,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746457526] [2022-03-03 16:52:19,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746457526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:19,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:19,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:19,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013621751] [2022-03-03 16:52:19,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:19,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:19,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:19,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:19,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:19,639 INFO L87 Difference]: Start difference. First operand 5474 states and 15405 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:19,761 INFO L93 Difference]: Finished difference Result 11362 states and 32124 transitions. [2022-03-03 16:52:19,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:19,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-03-03 16:52:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:19,781 INFO L225 Difference]: With dead ends: 11362 [2022-03-03 16:52:19,782 INFO L226 Difference]: Without dead ends: 11347 [2022-03-03 16:52:19,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:52:19,782 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 336 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:19,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1047 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-03-03 16:52:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5410. [2022-03-03 16:52:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.815492697356258) internal successors, (15229), 5409 states have internal predecessors, (15229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 15229 transitions. [2022-03-03 16:52:19,898 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 15229 transitions. Word has length 210 [2022-03-03 16:52:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:19,898 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 15229 transitions. [2022-03-03 16:52:19,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15229 transitions. [2022-03-03 16:52:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-03 16:52:19,905 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:19,905 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:19,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 16:52:19,906 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:19,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:19,906 INFO L85 PathProgramCache]: Analyzing trace with hash 473292210, now seen corresponding path program 6 times [2022-03-03 16:52:19,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:19,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12894306] [2022-03-03 16:52:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:19,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:19,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12894306] [2022-03-03 16:52:19,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12894306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:19,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:19,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:52:19,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141625877] [2022-03-03 16:52:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:19,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:52:19,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:52:19,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:52:19,980 INFO L87 Difference]: Start difference. First operand 5410 states and 15229 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:20,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:20,130 INFO L93 Difference]: Finished difference Result 9843 states and 28001 transitions. [2022-03-03 16:52:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 16:52:20,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-03-03 16:52:20,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:20,145 INFO L225 Difference]: With dead ends: 9843 [2022-03-03 16:52:20,145 INFO L226 Difference]: Without dead ends: 9828 [2022-03-03 16:52:20,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-03 16:52:20,146 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 301 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:20,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1105 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:52:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9828 states. [2022-03-03 16:52:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9828 to 5378. [2022-03-03 16:52:20,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.815138553096522) internal successors, (15137), 5377 states have internal predecessors, (15137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:20,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15137 transitions. [2022-03-03 16:52:20,243 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15137 transitions. Word has length 210 [2022-03-03 16:52:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:20,243 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15137 transitions. [2022-03-03 16:52:20,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15137 transitions. [2022-03-03 16:52:20,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:20,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:20,250 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:20,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 16:52:20,251 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash 245695604, now seen corresponding path program 1 times [2022-03-03 16:52:20,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:20,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149255208] [2022-03-03 16:52:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:20,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:20,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:20,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149255208] [2022-03-03 16:52:20,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149255208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:20,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:20,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:20,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924010369] [2022-03-03 16:52:20,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:20,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:20,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:20,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:20,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:20,733 INFO L87 Difference]: Start difference. First operand 5378 states and 15137 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:22,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:22,141 INFO L93 Difference]: Finished difference Result 20352 states and 57640 transitions. [2022-03-03 16:52:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 16:52:22,142 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:22,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:22,180 INFO L225 Difference]: With dead ends: 20352 [2022-03-03 16:52:22,180 INFO L226 Difference]: Without dead ends: 20352 [2022-03-03 16:52:22,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=537, Invalid=1913, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 16:52:22,182 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 2304 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:22,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2304 Valid, 4523 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:52:22,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20352 states. [2022-03-03 16:52:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20352 to 6848. [2022-03-03 16:52:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6848 states, 6847 states have (on average 2.80327150576895) internal successors, (19194), 6847 states have internal predecessors, (19194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 19194 transitions. [2022-03-03 16:52:22,394 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 19194 transitions. Word has length 223 [2022-03-03 16:52:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:22,394 INFO L470 AbstractCegarLoop]: Abstraction has 6848 states and 19194 transitions. [2022-03-03 16:52:22,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 19194 transitions. [2022-03-03 16:52:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:22,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:22,405 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:22,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 16:52:22,406 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:22,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:22,406 INFO L85 PathProgramCache]: Analyzing trace with hash -177626872, now seen corresponding path program 2 times [2022-03-03 16:52:22,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:22,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281604946] [2022-03-03 16:52:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:22,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:22,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:22,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281604946] [2022-03-03 16:52:22,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281604946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:22,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:22,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:22,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605153959] [2022-03-03 16:52:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:22,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:22,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:22,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:22,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:22,865 INFO L87 Difference]: Start difference. First operand 6848 states and 19194 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:24,046 INFO L93 Difference]: Finished difference Result 19662 states and 55858 transitions. [2022-03-03 16:52:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:52:24,046 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:24,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:24,081 INFO L225 Difference]: With dead ends: 19662 [2022-03-03 16:52:24,081 INFO L226 Difference]: Without dead ends: 19662 [2022-03-03 16:52:24,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 16:52:24,082 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1942 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:24,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1942 Valid, 3929 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:52:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19662 states. [2022-03-03 16:52:24,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19662 to 6884. [2022-03-03 16:52:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6884 states, 6883 states have (on average 2.808223158506465) internal successors, (19329), 6883 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:24,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 19329 transitions. [2022-03-03 16:52:24,255 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 19329 transitions. Word has length 223 [2022-03-03 16:52:24,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:24,255 INFO L470 AbstractCegarLoop]: Abstraction has 6884 states and 19329 transitions. [2022-03-03 16:52:24,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 19329 transitions. [2022-03-03 16:52:24,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:24,267 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:24,267 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:24,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 16:52:24,267 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:24,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:24,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1212045622, now seen corresponding path program 3 times [2022-03-03 16:52:24,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:24,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813558639] [2022-03-03 16:52:24,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:24,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:24,772 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:24,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:24,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813558639] [2022-03-03 16:52:24,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813558639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:24,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:24,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:24,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340052256] [2022-03-03 16:52:24,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:24,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:24,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:24,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:24,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:24,774 INFO L87 Difference]: Start difference. First operand 6884 states and 19329 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:26,008 INFO L93 Difference]: Finished difference Result 15904 states and 45390 transitions. [2022-03-03 16:52:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 16:52:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:26,041 INFO L225 Difference]: With dead ends: 15904 [2022-03-03 16:52:26,042 INFO L226 Difference]: Without dead ends: 15904 [2022-03-03 16:52:26,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=420, Invalid=1650, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 16:52:26,044 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1595 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:26,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1595 Valid, 4139 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:52:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2022-03-03 16:52:26,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 6888. [2022-03-03 16:52:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6888 states, 6887 states have (on average 2.8087701466531145) internal successors, (19344), 6887 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 19344 transitions. [2022-03-03 16:52:26,237 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 19344 transitions. Word has length 223 [2022-03-03 16:52:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:26,238 INFO L470 AbstractCegarLoop]: Abstraction has 6888 states and 19344 transitions. [2022-03-03 16:52:26,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 19344 transitions. [2022-03-03 16:52:26,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:26,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:26,247 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:26,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 16:52:26,248 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1115900114, now seen corresponding path program 4 times [2022-03-03 16:52:26,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:26,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188041892] [2022-03-03 16:52:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:26,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:26,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:26,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188041892] [2022-03-03 16:52:26,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188041892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:26,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:26,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:26,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589050404] [2022-03-03 16:52:26,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:26,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:26,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:26,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:26,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:26,634 INFO L87 Difference]: Start difference. First operand 6888 states and 19344 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:27,599 INFO L93 Difference]: Finished difference Result 14204 states and 40300 transitions. [2022-03-03 16:52:27,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:27,599 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:27,624 INFO L225 Difference]: With dead ends: 14204 [2022-03-03 16:52:27,625 INFO L226 Difference]: Without dead ends: 14204 [2022-03-03 16:52:27,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=376, Invalid=1516, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:27,626 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1553 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:27,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 3632 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14204 states. [2022-03-03 16:52:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14204 to 6892. [2022-03-03 16:52:27,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6892 states, 6891 states have (on average 2.809896967058482) internal successors, (19363), 6891 states have internal predecessors, (19363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 19363 transitions. [2022-03-03 16:52:27,765 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 19363 transitions. Word has length 223 [2022-03-03 16:52:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:27,766 INFO L470 AbstractCegarLoop]: Abstraction has 6892 states and 19363 transitions. [2022-03-03 16:52:27,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 19363 transitions. [2022-03-03 16:52:27,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:27,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:27,776 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:27,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 16:52:27,776 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:27,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2075401802, now seen corresponding path program 5 times [2022-03-03 16:52:27,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:27,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876883020] [2022-03-03 16:52:27,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:27,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:28,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:28,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876883020] [2022-03-03 16:52:28,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876883020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:28,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:28,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:28,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769546193] [2022-03-03 16:52:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:28,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:28,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:28,166 INFO L87 Difference]: Start difference. First operand 6892 states and 19363 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:29,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:29,204 INFO L93 Difference]: Finished difference Result 13944 states and 39604 transitions. [2022-03-03 16:52:29,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:29,204 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:29,227 INFO L225 Difference]: With dead ends: 13944 [2022-03-03 16:52:29,227 INFO L226 Difference]: Without dead ends: 13944 [2022-03-03 16:52:29,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=390, Invalid=1502, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:29,228 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 1556 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:29,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 3553 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:29,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2022-03-03 16:52:29,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 6996. [2022-03-03 16:52:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6996 states, 6995 states have (on average 2.81072194424589) internal successors, (19661), 6995 states have internal predecessors, (19661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 19661 transitions. [2022-03-03 16:52:29,358 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 19661 transitions. Word has length 223 [2022-03-03 16:52:29,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:29,359 INFO L470 AbstractCegarLoop]: Abstraction has 6996 states and 19661 transitions. [2022-03-03 16:52:29,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:29,359 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 19661 transitions. [2022-03-03 16:52:29,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:29,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:29,369 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:29,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 16:52:29,370 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:29,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:29,370 INFO L85 PathProgramCache]: Analyzing trace with hash 248086366, now seen corresponding path program 6 times [2022-03-03 16:52:29,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:29,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566986131] [2022-03-03 16:52:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:29,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:29,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:29,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566986131] [2022-03-03 16:52:29,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566986131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:29,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:29,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:29,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744154118] [2022-03-03 16:52:29,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:29,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:29,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:29,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:29,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:29,725 INFO L87 Difference]: Start difference. First operand 6996 states and 19661 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:30,879 INFO L93 Difference]: Finished difference Result 21102 states and 60162 transitions. [2022-03-03 16:52:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:52:30,880 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:30,919 INFO L225 Difference]: With dead ends: 21102 [2022-03-03 16:52:30,920 INFO L226 Difference]: Without dead ends: 21102 [2022-03-03 16:52:30,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=478, Invalid=1778, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 16:52:30,921 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1722 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:30,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1722 Valid, 4202 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:52:30,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21102 states. [2022-03-03 16:52:31,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21102 to 7068. [2022-03-03 16:52:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7068 states, 7067 states have (on average 2.815197396349229) internal successors, (19895), 7067 states have internal predecessors, (19895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:31,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 19895 transitions. [2022-03-03 16:52:31,114 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 19895 transitions. Word has length 223 [2022-03-03 16:52:31,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:31,114 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 19895 transitions. [2022-03-03 16:52:31,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:31,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 19895 transitions. [2022-03-03 16:52:31,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:31,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:31,124 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:31,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 16:52:31,125 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:31,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash -786332384, now seen corresponding path program 7 times [2022-03-03 16:52:31,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:31,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003031740] [2022-03-03 16:52:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:31,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:31,455 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:31,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:31,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003031740] [2022-03-03 16:52:31,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003031740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:31,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:31,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:31,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073834418] [2022-03-03 16:52:31,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:31,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:31,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:31,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:31,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:31,457 INFO L87 Difference]: Start difference. First operand 7068 states and 19895 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:32,442 INFO L93 Difference]: Finished difference Result 17996 states and 51659 transitions. [2022-03-03 16:52:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 16:52:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:32,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:32,474 INFO L225 Difference]: With dead ends: 17996 [2022-03-03 16:52:32,475 INFO L226 Difference]: Without dead ends: 17996 [2022-03-03 16:52:32,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=427, Invalid=1643, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 16:52:32,475 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1699 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:32,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1699 Valid, 3521 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:32,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-03-03 16:52:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 7072. [2022-03-03 16:52:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 7071 states have (on average 2.815726205628624) internal successors, (19910), 7071 states have internal predecessors, (19910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:32,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 19910 transitions. [2022-03-03 16:52:32,647 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 19910 transitions. Word has length 223 [2022-03-03 16:52:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:32,647 INFO L470 AbstractCegarLoop]: Abstraction has 7072 states and 19910 transitions. [2022-03-03 16:52:32,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 19910 transitions. [2022-03-03 16:52:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:32,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:32,658 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:32,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 16:52:32,658 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:32,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:32,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1541613352, now seen corresponding path program 8 times [2022-03-03 16:52:32,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:32,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506321633] [2022-03-03 16:52:32,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:32,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:33,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:33,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506321633] [2022-03-03 16:52:33,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506321633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:33,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:33,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:33,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202555734] [2022-03-03 16:52:33,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:33,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:33,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:33,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:33,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:33,028 INFO L87 Difference]: Start difference. First operand 7072 states and 19910 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:33,813 INFO L93 Difference]: Finished difference Result 16296 states and 46569 transitions. [2022-03-03 16:52:33,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:33,814 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:33,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:33,844 INFO L225 Difference]: With dead ends: 16296 [2022-03-03 16:52:33,844 INFO L226 Difference]: Without dead ends: 16296 [2022-03-03 16:52:33,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=383, Invalid=1509, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:33,845 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1450 mSDsluCounter, 3143 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:33,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 3435 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:33,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-03-03 16:52:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 7076. [2022-03-03 16:52:33,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7076 states, 7075 states have (on average 2.8168197879858656) internal successors, (19929), 7075 states have internal predecessors, (19929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7076 states to 7076 states and 19929 transitions. [2022-03-03 16:52:33,995 INFO L78 Accepts]: Start accepts. Automaton has 7076 states and 19929 transitions. Word has length 223 [2022-03-03 16:52:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:33,996 INFO L470 AbstractCegarLoop]: Abstraction has 7076 states and 19929 transitions. [2022-03-03 16:52:33,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:33,996 INFO L276 IsEmpty]: Start isEmpty. Operand 7076 states and 19929 transitions. [2022-03-03 16:52:34,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:34,005 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:34,005 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:34,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 16:52:34,005 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:34,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:34,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1793852256, now seen corresponding path program 9 times [2022-03-03 16:52:34,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:34,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428774008] [2022-03-03 16:52:34,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:34,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:34,407 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:34,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:34,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428774008] [2022-03-03 16:52:34,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428774008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:34,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:34,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:34,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023370567] [2022-03-03 16:52:34,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:34,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:34,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:34,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:34,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:34,409 INFO L87 Difference]: Start difference. First operand 7076 states and 19929 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:35,370 INFO L93 Difference]: Finished difference Result 16036 states and 45873 transitions. [2022-03-03 16:52:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:35,370 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:35,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:35,401 INFO L225 Difference]: With dead ends: 16036 [2022-03-03 16:52:35,401 INFO L226 Difference]: Without dead ends: 16036 [2022-03-03 16:52:35,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:35,402 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 1431 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:35,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1431 Valid, 3502 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:35,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-03-03 16:52:35,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 7032. [2022-03-03 16:52:35,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7032 states, 7031 states have (on average 2.8104110368368653) internal successors, (19760), 7031 states have internal predecessors, (19760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 19760 transitions. [2022-03-03 16:52:35,556 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 19760 transitions. Word has length 223 [2022-03-03 16:52:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:35,557 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 19760 transitions. [2022-03-03 16:52:35,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 19760 transitions. [2022-03-03 16:52:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:35,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:35,568 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:35,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 16:52:35,568 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:35,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash 559291998, now seen corresponding path program 10 times [2022-03-03 16:52:35,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:35,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865783586] [2022-03-03 16:52:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:35,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:35,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:35,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865783586] [2022-03-03 16:52:35,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865783586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:35,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:35,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:35,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879263222] [2022-03-03 16:52:35,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:35,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:35,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:35,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:35,925 INFO L87 Difference]: Start difference. First operand 7032 states and 19760 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:36,877 INFO L93 Difference]: Finished difference Result 16588 states and 47447 transitions. [2022-03-03 16:52:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 16:52:36,877 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:36,911 INFO L225 Difference]: With dead ends: 16588 [2022-03-03 16:52:36,911 INFO L226 Difference]: Without dead ends: 16588 [2022-03-03 16:52:36,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=429, Invalid=1641, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 16:52:36,912 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1507 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:36,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 3130 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16588 states. [2022-03-03 16:52:37,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16588 to 7040. [2022-03-03 16:52:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 7039 states have (on average 2.8109106407160107) internal successors, (19786), 7039 states have internal predecessors, (19786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-03-03 16:52:37,091 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-03-03 16:52:37,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:37,091 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-03-03 16:52:37,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:37,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-03-03 16:52:37,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:37,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:37,103 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:37,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 16:52:37,103 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:37,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1407729562, now seen corresponding path program 11 times [2022-03-03 16:52:37,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:37,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062307021] [2022-03-03 16:52:37,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:37,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:37,445 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:37,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:37,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062307021] [2022-03-03 16:52:37,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062307021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:37,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:37,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:37,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132453711] [2022-03-03 16:52:37,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:37,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:37,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:37,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:37,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:37,447 INFO L87 Difference]: Start difference. First operand 7040 states and 19786 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:38,287 INFO L93 Difference]: Finished difference Result 15344 states and 43775 transitions. [2022-03-03 16:52:38,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:38,287 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:38,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:38,315 INFO L225 Difference]: With dead ends: 15344 [2022-03-03 16:52:38,315 INFO L226 Difference]: Without dead ends: 15344 [2022-03-03 16:52:38,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:38,316 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1325 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:38,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 3509 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:38,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2022-03-03 16:52:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 7044. [2022-03-03 16:52:38,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 2.812011926735766) internal successors, (19805), 7043 states have internal predecessors, (19805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-03-03 16:52:38,469 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-03-03 16:52:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:38,469 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-03-03 16:52:38,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-03-03 16:52:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:38,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:38,479 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:38,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 16:52:38,480 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:38,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:38,480 INFO L85 PathProgramCache]: Analyzing trace with hash -448227874, now seen corresponding path program 12 times [2022-03-03 16:52:38,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:38,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174710178] [2022-03-03 16:52:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:38,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:38,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:38,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174710178] [2022-03-03 16:52:38,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174710178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:38,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:38,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:38,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869264185] [2022-03-03 16:52:38,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:38,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:38,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:38,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:38,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:38,818 INFO L87 Difference]: Start difference. First operand 7044 states and 19805 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:39,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:39,491 INFO L93 Difference]: Finished difference Result 15084 states and 43079 transitions. [2022-03-03 16:52:39,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:39,491 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:39,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:39,518 INFO L225 Difference]: With dead ends: 15084 [2022-03-03 16:52:39,518 INFO L226 Difference]: Without dead ends: 15084 [2022-03-03 16:52:39,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:39,519 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1334 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:39,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 3428 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15084 states. [2022-03-03 16:52:39,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15084 to 7036. [2022-03-03 16:52:39,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 2.8103766879886285) internal successors, (19771), 7035 states have internal predecessors, (19771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 19771 transitions. [2022-03-03 16:52:39,659 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 19771 transitions. Word has length 223 [2022-03-03 16:52:39,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:39,660 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 19771 transitions. [2022-03-03 16:52:39,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:39,660 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 19771 transitions. [2022-03-03 16:52:39,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:39,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:39,669 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:39,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 16:52:39,669 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:39,683 INFO L85 PathProgramCache]: Analyzing trace with hash -526466794, now seen corresponding path program 13 times [2022-03-03 16:52:39,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:39,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262596196] [2022-03-03 16:52:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:39,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:40,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:40,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262596196] [2022-03-03 16:52:40,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262596196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:40,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:40,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:40,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185102386] [2022-03-03 16:52:40,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:40,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:40,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:40,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:40,109 INFO L87 Difference]: Start difference. First operand 7036 states and 19771 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:41,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:41,023 INFO L93 Difference]: Finished difference Result 14852 states and 42250 transitions. [2022-03-03 16:52:41,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:41,024 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:41,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:41,050 INFO L225 Difference]: With dead ends: 14852 [2022-03-03 16:52:41,050 INFO L226 Difference]: Without dead ends: 14852 [2022-03-03 16:52:41,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:41,051 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1501 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:41,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1501 Valid, 3432 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:41,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14852 states. [2022-03-03 16:52:41,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 7044. [2022-03-03 16:52:41,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 2.812011926735766) internal successors, (19805), 7043 states have internal predecessors, (19805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-03-03 16:52:41,189 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-03-03 16:52:41,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:41,189 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-03-03 16:52:41,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:41,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-03-03 16:52:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:41,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:41,199 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:41,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 16:52:41,199 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:41,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:41,199 INFO L85 PathProgramCache]: Analyzing trace with hash 433034894, now seen corresponding path program 14 times [2022-03-03 16:52:41,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:41,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104090496] [2022-03-03 16:52:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:41,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:41,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:41,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104090496] [2022-03-03 16:52:41,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104090496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:41,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:41,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:41,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158142407] [2022-03-03 16:52:41,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:41,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:41,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:41,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:41,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:41,551 INFO L87 Difference]: Start difference. First operand 7044 states and 19805 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:42,256 INFO L93 Difference]: Finished difference Result 14676 states and 41797 transitions. [2022-03-03 16:52:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:52:42,256 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:42,283 INFO L225 Difference]: With dead ends: 14676 [2022-03-03 16:52:42,283 INFO L226 Difference]: Without dead ends: 14676 [2022-03-03 16:52:42,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:52:42,286 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1351 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:42,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 3402 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:42,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-03-03 16:52:42,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 7040. [2022-03-03 16:52:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 7039 states have (on average 2.8109106407160107) internal successors, (19786), 7039 states have internal predecessors, (19786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:42,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-03-03 16:52:42,438 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-03-03 16:52:42,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:42,439 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-03-03 16:52:42,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:42,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-03-03 16:52:42,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:42,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:42,449 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:42,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 16:52:42,449 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1262740864, now seen corresponding path program 15 times [2022-03-03 16:52:42,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:42,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370241854] [2022-03-03 16:52:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:42,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:42,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:42,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370241854] [2022-03-03 16:52:42,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370241854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:42,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:42,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:52:42,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359420248] [2022-03-03 16:52:42,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:42,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:52:42,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:42,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:52:42,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:52:42,764 INFO L87 Difference]: Start difference. First operand 7040 states and 19786 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:43,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:43,503 INFO L93 Difference]: Finished difference Result 15708 states and 44747 transitions. [2022-03-03 16:52:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 16:52:43,503 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:43,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:43,571 INFO L225 Difference]: With dead ends: 15708 [2022-03-03 16:52:43,571 INFO L226 Difference]: Without dead ends: 15708 [2022-03-03 16:52:43,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1621, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 16:52:43,573 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1550 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:43,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1550 Valid, 3244 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:43,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15708 states. [2022-03-03 16:52:43,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15708 to 7144. [2022-03-03 16:52:43,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7144 states, 7143 states have (on average 2.8117037659246815) internal successors, (20084), 7143 states have internal predecessors, (20084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 20084 transitions. [2022-03-03 16:52:43,705 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 20084 transitions. Word has length 223 [2022-03-03 16:52:43,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:43,706 INFO L470 AbstractCegarLoop]: Abstraction has 7144 states and 20084 transitions. [2022-03-03 16:52:43,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 20084 transitions. [2022-03-03 16:52:43,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:43,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:43,716 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:43,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 16:52:43,716 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash 550123268, now seen corresponding path program 16 times [2022-03-03 16:52:43,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:43,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932479732] [2022-03-03 16:52:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:43,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:43,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:43,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932479732] [2022-03-03 16:52:43,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932479732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:43,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:43,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:43,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959645266] [2022-03-03 16:52:43,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:43,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:43,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:43,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:43,970 INFO L87 Difference]: Start difference. First operand 7144 states and 20084 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:44,608 INFO L93 Difference]: Finished difference Result 24183 states and 68741 transitions. [2022-03-03 16:52:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-03 16:52:44,609 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:44,654 INFO L225 Difference]: With dead ends: 24183 [2022-03-03 16:52:44,654 INFO L226 Difference]: Without dead ends: 24183 [2022-03-03 16:52:44,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:52:44,655 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1352 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:44,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 3823 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:44,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-03-03 16:52:44,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 7540. [2022-03-03 16:52:44,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 2.8132378299509218) internal successors, (21209), 7539 states have internal predecessors, (21209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-03-03 16:52:44,865 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-03-03 16:52:44,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:44,866 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-03-03 16:52:44,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:44,866 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-03-03 16:52:44,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:44,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:44,876 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:44,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 16:52:44,876 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:44,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:44,877 INFO L85 PathProgramCache]: Analyzing trace with hash -484295482, now seen corresponding path program 17 times [2022-03-03 16:52:44,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:44,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065537127] [2022-03-03 16:52:44,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:44,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:45,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:45,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065537127] [2022-03-03 16:52:45,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065537127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:45,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:45,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:45,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027162270] [2022-03-03 16:52:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:45,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:45,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:45,121 INFO L87 Difference]: Start difference. First operand 7540 states and 21209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:45,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:45,669 INFO L93 Difference]: Finished difference Result 21077 states and 60238 transitions. [2022-03-03 16:52:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:52:45,670 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:45,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:45,709 INFO L225 Difference]: With dead ends: 21077 [2022-03-03 16:52:45,709 INFO L226 Difference]: Without dead ends: 21077 [2022-03-03 16:52:45,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:52:45,710 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1039 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 3913 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:45,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 3913 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:45,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21077 states. [2022-03-03 16:52:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21077 to 7544. [2022-03-03 16:52:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 2.813734588360069) internal successors, (21224), 7543 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-03-03 16:52:45,914 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-03-03 16:52:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:45,914 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-03-03 16:52:45,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-03-03 16:52:45,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:45,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:45,924 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:45,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 16:52:45,925 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:45,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1843650254, now seen corresponding path program 18 times [2022-03-03 16:52:45,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:45,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311389844] [2022-03-03 16:52:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:45,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:46,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:46,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311389844] [2022-03-03 16:52:46,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311389844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:46,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:46,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:46,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187394935] [2022-03-03 16:52:46,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:46,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:46,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:46,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:46,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:46,170 INFO L87 Difference]: Start difference. First operand 7544 states and 21224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:46,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:46,769 INFO L93 Difference]: Finished difference Result 19377 states and 55148 transitions. [2022-03-03 16:52:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:46,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:46,805 INFO L225 Difference]: With dead ends: 19377 [2022-03-03 16:52:46,805 INFO L226 Difference]: Without dead ends: 19377 [2022-03-03 16:52:46,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:46,806 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1291 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:46,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1291 Valid, 3599 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19377 states. [2022-03-03 16:52:46,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19377 to 7548. [2022-03-03 16:52:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7548 states, 7547 states have (on average 2.8147608321187225) internal successors, (21243), 7547 states have internal predecessors, (21243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-03-03 16:52:46,984 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-03-03 16:52:46,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:46,984 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-03-03 16:52:46,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:46,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-03-03 16:52:46,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:46,994 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:46,994 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:46,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 16:52:46,994 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:46,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:46,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1491815354, now seen corresponding path program 19 times [2022-03-03 16:52:46,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:46,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901295380] [2022-03-03 16:52:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:46,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:47,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:47,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901295380] [2022-03-03 16:52:47,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901295380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:47,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:47,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:47,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271522310] [2022-03-03 16:52:47,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:47,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:47,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:47,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:47,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:47,283 INFO L87 Difference]: Start difference. First operand 7548 states and 21243 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:47,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:47,853 INFO L93 Difference]: Finished difference Result 19117 states and 54452 transitions. [2022-03-03 16:52:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:47,854 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:47,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:47,888 INFO L225 Difference]: With dead ends: 19117 [2022-03-03 16:52:47,888 INFO L226 Difference]: Without dead ends: 19117 [2022-03-03 16:52:47,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:47,895 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1221 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:47,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 3254 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19117 states. [2022-03-03 16:52:48,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19117 to 7504. [2022-03-03 16:52:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 2.808743169398907) internal successors, (21074), 7503 states have internal predecessors, (21074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:48,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-03-03 16:52:48,087 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-03-03 16:52:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:48,087 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-03-03 16:52:48,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-03-03 16:52:48,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:48,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:48,097 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:48,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 16:52:48,097 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:48,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:48,098 INFO L85 PathProgramCache]: Analyzing trace with hash 861328900, now seen corresponding path program 20 times [2022-03-03 16:52:48,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:48,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580205813] [2022-03-03 16:52:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:48,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:48,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:48,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580205813] [2022-03-03 16:52:48,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580205813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:48,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:48,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:48,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106252143] [2022-03-03 16:52:48,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:48,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:48,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:48,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:48,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:48,353 INFO L87 Difference]: Start difference. First operand 7504 states and 21074 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:48,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:48,981 INFO L93 Difference]: Finished difference Result 21573 states and 61766 transitions. [2022-03-03 16:52:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:52:48,982 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:48,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:49,025 INFO L225 Difference]: With dead ends: 21573 [2022-03-03 16:52:49,025 INFO L226 Difference]: Without dead ends: 21573 [2022-03-03 16:52:49,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:52:49,026 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1562 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:49,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1562 Valid, 2908 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:49,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21573 states. [2022-03-03 16:52:49,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21573 to 7512. [2022-03-03 16:52:49,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:49,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-03 16:52:49,227 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-03 16:52:49,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:49,227 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-03 16:52:49,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-03 16:52:49,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:49,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:49,237 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:49,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 16:52:49,238 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:49,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:49,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1105692660, now seen corresponding path program 21 times [2022-03-03 16:52:49,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:49,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190068780] [2022-03-03 16:52:49,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:49,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:49,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:49,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190068780] [2022-03-03 16:52:49,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190068780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:49,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:49,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:49,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605812181] [2022-03-03 16:52:49,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:49,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:49,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:49,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:49,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:49,486 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:50,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:50,080 INFO L93 Difference]: Finished difference Result 20329 states and 58094 transitions. [2022-03-03 16:52:50,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:50,081 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:50,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:50,121 INFO L225 Difference]: With dead ends: 20329 [2022-03-03 16:52:50,121 INFO L226 Difference]: Without dead ends: 20329 [2022-03-03 16:52:50,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:50,122 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 927 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:50,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 3467 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:50,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20329 states. [2022-03-03 16:52:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20329 to 7516. [2022-03-03 16:52:50,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-03 16:52:50,363 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-03 16:52:50,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:50,363 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-03 16:52:50,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-03 16:52:50,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:50,373 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:50,373 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:50,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 16:52:50,373 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash -146190972, now seen corresponding path program 22 times [2022-03-03 16:52:50,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:50,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100097043] [2022-03-03 16:52:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:50,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:50,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:50,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100097043] [2022-03-03 16:52:50,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100097043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:50,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:50,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:50,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952573461] [2022-03-03 16:52:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:50,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:50,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:50,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:50,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:50,636 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:51,281 INFO L93 Difference]: Finished difference Result 20069 states and 57398 transitions. [2022-03-03 16:52:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:51,281 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:51,320 INFO L225 Difference]: With dead ends: 20069 [2022-03-03 16:52:51,320 INFO L226 Difference]: Without dead ends: 20069 [2022-03-03 16:52:51,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:51,322 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1457 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:51,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 3399 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:52:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20069 states. [2022-03-03 16:52:51,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20069 to 7508. [2022-03-03 16:52:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 2.808711868922339) internal successors, (21085), 7507 states have internal predecessors, (21085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-03-03 16:52:51,510 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-03-03 16:52:51,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:51,510 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-03-03 16:52:51,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-03-03 16:52:51,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:51,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:51,523 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:51,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 16:52:51,524 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash -224429892, now seen corresponding path program 23 times [2022-03-03 16:52:51,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:51,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345531817] [2022-03-03 16:52:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:51,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:51,787 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:51,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:51,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345531817] [2022-03-03 16:52:51,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345531817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:51,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:51,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:51,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951167312] [2022-03-03 16:52:51,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:51,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:51,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:51,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:51,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:51,788 INFO L87 Difference]: Start difference. First operand 7508 states and 21085 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:52,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:52,349 INFO L93 Difference]: Finished difference Result 19837 states and 56569 transitions. [2022-03-03 16:52:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:52,350 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:52,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:52,390 INFO L225 Difference]: With dead ends: 19837 [2022-03-03 16:52:52,390 INFO L226 Difference]: Without dead ends: 19837 [2022-03-03 16:52:52,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:52,391 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1300 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:52,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 3288 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:52,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2022-03-03 16:52:52,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 7516. [2022-03-03 16:52:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-03 16:52:52,579 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-03 16:52:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:52,579 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-03 16:52:52,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-03 16:52:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:52,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:52,621 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:52,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 16:52:52,621 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:52,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:52,621 INFO L85 PathProgramCache]: Analyzing trace with hash 735071796, now seen corresponding path program 24 times [2022-03-03 16:52:52,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:52,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128390952] [2022-03-03 16:52:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:52,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:52,857 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:52,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:52,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128390952] [2022-03-03 16:52:52,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128390952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:52,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:52,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:52,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665160971] [2022-03-03 16:52:52,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:52,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:52,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:52,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:52,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:52,859 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:53,434 INFO L93 Difference]: Finished difference Result 19661 states and 56116 transitions. [2022-03-03 16:52:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:53,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:53,475 INFO L225 Difference]: With dead ends: 19661 [2022-03-03 16:52:53,475 INFO L226 Difference]: Without dead ends: 19661 [2022-03-03 16:52:53,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:53,476 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1086 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:53,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3269 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:53,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19661 states. [2022-03-03 16:52:53,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19661 to 7512. [2022-03-03 16:52:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-03 16:52:53,654 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-03 16:52:53,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:53,654 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-03 16:52:53,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-03 16:52:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:53,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:53,666 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:53,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 16:52:53,667 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:53,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:53,667 INFO L85 PathProgramCache]: Analyzing trace with hash -960703962, now seen corresponding path program 25 times [2022-03-03 16:52:53,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:53,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225479045] [2022-03-03 16:52:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:53,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:53,923 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:53,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:53,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225479045] [2022-03-03 16:52:53,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225479045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:53,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:53,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:53,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132675166] [2022-03-03 16:52:53,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:53,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:53,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:53,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:53,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:53,925 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:54,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:54,556 INFO L93 Difference]: Finished difference Result 20797 states and 59364 transitions. [2022-03-03 16:52:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:52:54,557 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:54,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:54,597 INFO L225 Difference]: With dead ends: 20797 [2022-03-03 16:52:54,597 INFO L226 Difference]: Without dead ends: 20797 [2022-03-03 16:52:54,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:52:54,598 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1166 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:54,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 3166 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:54,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2022-03-03 16:52:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 7468. [2022-03-03 16:52:54,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7468 states, 7467 states have (on average 2.80902638275077) internal successors, (20975), 7467 states have internal predecessors, (20975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:54,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 20975 transitions. [2022-03-03 16:52:54,789 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 20975 transitions. Word has length 223 [2022-03-03 16:52:54,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:54,790 INFO L470 AbstractCegarLoop]: Abstraction has 7468 states and 20975 transitions. [2022-03-03 16:52:54,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:54,790 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 20975 transitions. [2022-03-03 16:52:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:54,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:54,800 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:54,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 16:52:54,800 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:54,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:54,801 INFO L85 PathProgramCache]: Analyzing trace with hash -353734266, now seen corresponding path program 26 times [2022-03-03 16:52:54,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:54,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924870396] [2022-03-03 16:52:54,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:54,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:55,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:55,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924870396] [2022-03-03 16:52:55,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924870396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:55,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:55,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:55,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924879728] [2022-03-03 16:52:55,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:55,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:55,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:55,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:55,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:55,087 INFO L87 Difference]: Start difference. First operand 7468 states and 20975 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:55,728 INFO L93 Difference]: Finished difference Result 19585 states and 55795 transitions. [2022-03-03 16:52:55,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:52:55,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:55,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:55,768 INFO L225 Difference]: With dead ends: 19585 [2022-03-03 16:52:55,768 INFO L226 Difference]: Without dead ends: 19585 [2022-03-03 16:52:55,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=960, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:52:55,769 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1541 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:55,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 3076 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19585 states. [2022-03-03 16:52:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19585 to 7512. [2022-03-03 16:52:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-03 16:52:55,950 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-03 16:52:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:55,951 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-03 16:52:55,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-03 16:52:55,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:55,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:55,960 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:55,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 16:52:55,961 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:55,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:55,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1974211470, now seen corresponding path program 27 times [2022-03-03 16:52:55,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:55,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664743881] [2022-03-03 16:52:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:55,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:56,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:56,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664743881] [2022-03-03 16:52:56,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664743881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:56,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:56,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:56,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522431885] [2022-03-03 16:52:56,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:56,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:56,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:56,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:56,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:56,209 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:56,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:56,702 INFO L93 Difference]: Finished difference Result 18341 states and 52123 transitions. [2022-03-03 16:52:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:56,702 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:56,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:56,737 INFO L225 Difference]: With dead ends: 18341 [2022-03-03 16:52:56,737 INFO L226 Difference]: Without dead ends: 18341 [2022-03-03 16:52:56,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:56,738 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 932 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:56,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 3403 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:56,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18341 states. [2022-03-03 16:52:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18341 to 7516. [2022-03-03 16:52:56,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-03 16:52:56,906 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-03 16:52:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:56,906 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-03 16:52:56,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-03 16:52:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:56,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:56,916 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:56,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 16:52:56,916 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:56,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:56,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1361254138, now seen corresponding path program 28 times [2022-03-03 16:52:56,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:56,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727632357] [2022-03-03 16:52:56,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:57,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:57,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727632357] [2022-03-03 16:52:57,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727632357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:57,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:57,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:57,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319372495] [2022-03-03 16:52:57,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:57,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:57,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:57,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:57,166 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:57,706 INFO L93 Difference]: Finished difference Result 18081 states and 51427 transitions. [2022-03-03 16:52:57,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:57,707 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:57,736 INFO L225 Difference]: With dead ends: 18081 [2022-03-03 16:52:57,736 INFO L226 Difference]: Without dead ends: 18081 [2022-03-03 16:52:57,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:57,739 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 1269 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:57,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 2809 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:57,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18081 states. [2022-03-03 16:52:57,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18081 to 7508. [2022-03-03 16:52:57,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 2.808711868922339) internal successors, (21085), 7507 states have internal predecessors, (21085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:57,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-03-03 16:52:57,898 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-03-03 16:52:57,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:57,898 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-03-03 16:52:57,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:57,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-03-03 16:52:57,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:57,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:57,908 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:57,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 16:52:57,908 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:57,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:57,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1439493058, now seen corresponding path program 29 times [2022-03-03 16:52:57,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:57,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362024385] [2022-03-03 16:52:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:57,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:58,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:58,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362024385] [2022-03-03 16:52:58,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362024385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:58,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:58,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:58,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89042924] [2022-03-03 16:52:58,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:58,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:58,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:58,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:58,218 INFO L87 Difference]: Start difference. First operand 7508 states and 21085 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:58,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:58,793 INFO L93 Difference]: Finished difference Result 18749 states and 53401 transitions. [2022-03-03 16:52:58,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:58,794 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:58,828 INFO L225 Difference]: With dead ends: 18749 [2022-03-03 16:52:58,828 INFO L226 Difference]: Without dead ends: 18749 [2022-03-03 16:52:58,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:58,829 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 976 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 3129 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:58,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 3129 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18749 states. [2022-03-03 16:52:58,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18749 to 7516. [2022-03-03 16:52:58,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-03 16:52:59,006 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-03 16:52:59,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:52:59,006 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-03 16:52:59,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-03 16:52:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:52:59,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:52:59,016 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:52:59,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 16:52:59,017 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:52:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:52:59,017 INFO L85 PathProgramCache]: Analyzing trace with hash -479991370, now seen corresponding path program 30 times [2022-03-03 16:52:59,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:52:59,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022766807] [2022-03-03 16:52:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:52:59,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:52:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:52:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:52:59,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:52:59,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022766807] [2022-03-03 16:52:59,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022766807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:52:59,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:52:59,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:52:59,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541310582] [2022-03-03 16:52:59,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:52:59,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:52:59,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:52:59,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:52:59,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:52:59,263 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:52:59,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:52:59,773 INFO L93 Difference]: Finished difference Result 18573 states and 52948 transitions. [2022-03-03 16:52:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:52:59,773 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:52:59,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:52:59,805 INFO L225 Difference]: With dead ends: 18573 [2022-03-03 16:52:59,806 INFO L226 Difference]: Without dead ends: 18573 [2022-03-03 16:52:59,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:52:59,806 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1109 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:52:59,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 2934 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:52:59,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18573 states. [2022-03-03 16:52:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18573 to 7512. [2022-03-03 16:52:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:00,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-03 16:53:00,003 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-03 16:53:00,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:00,004 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-03 16:53:00,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:00,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-03 16:53:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:00,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:00,023 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:00,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 16:53:00,023 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:00,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:00,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2119200168, now seen corresponding path program 31 times [2022-03-03 16:53:00,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:00,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592303608] [2022-03-03 16:53:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:00,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:00,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:00,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592303608] [2022-03-03 16:53:00,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592303608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:00,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:00,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:00,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162783960] [2022-03-03 16:53:00,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:00,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:00,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:00,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:00,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:00,421 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:01,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:01,002 INFO L93 Difference]: Finished difference Result 19757 states and 56328 transitions. [2022-03-03 16:53:01,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:01,003 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:01,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:01,059 INFO L225 Difference]: With dead ends: 19757 [2022-03-03 16:53:01,059 INFO L226 Difference]: Without dead ends: 19757 [2022-03-03 16:53:01,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:01,060 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1386 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3431 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:01,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 3431 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:01,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19757 states. [2022-03-03 16:53:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19757 to 7504. [2022-03-03 16:53:01,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 2.808743169398907) internal successors, (21074), 7503 states have internal predecessors, (21074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:01,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-03-03 16:53:01,249 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-03-03 16:53:01,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:01,249 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-03-03 16:53:01,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:01,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-03-03 16:53:01,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:01,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:01,259 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:01,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 16:53:01,260 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:01,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:01,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1905302994, now seen corresponding path program 32 times [2022-03-03 16:53:01,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:01,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31262822] [2022-03-03 16:53:01,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:01,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:01,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:01,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31262822] [2022-03-03 16:53:01,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31262822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:01,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:01,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:01,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920454813] [2022-03-03 16:53:01,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:01,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:01,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:01,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:01,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:01,506 INFO L87 Difference]: Start difference. First operand 7504 states and 21074 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:01,915 INFO L93 Difference]: Finished difference Result 17845 states and 50587 transitions. [2022-03-03 16:53:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:01,915 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:01,948 INFO L225 Difference]: With dead ends: 17845 [2022-03-03 16:53:01,948 INFO L226 Difference]: Without dead ends: 17845 [2022-03-03 16:53:01,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:01,948 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1285 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:01,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1285 Valid, 3088 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:53:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17845 states. [2022-03-03 16:53:02,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17845 to 7548. [2022-03-03 16:53:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7548 states, 7547 states have (on average 2.8147608321187225) internal successors, (21243), 7547 states have internal predecessors, (21243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:02,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-03-03 16:53:02,200 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-03-03 16:53:02,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:02,200 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-03-03 16:53:02,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:02,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-03-03 16:53:02,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:02,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:02,210 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:02,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 16:53:02,210 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:02,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1430162614, now seen corresponding path program 33 times [2022-03-03 16:53:02,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:02,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891025289] [2022-03-03 16:53:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:02,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:02,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891025289] [2022-03-03 16:53:02,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891025289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:02,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:02,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:02,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051537743] [2022-03-03 16:53:02,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:02,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:02,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:02,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:02,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:02,443 INFO L87 Difference]: Start difference. First operand 7548 states and 21243 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:03,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:03,022 INFO L93 Difference]: Finished difference Result 17669 states and 50134 transitions. [2022-03-03 16:53:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:03,023 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:03,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:03,061 INFO L225 Difference]: With dead ends: 17669 [2022-03-03 16:53:03,061 INFO L226 Difference]: Without dead ends: 17669 [2022-03-03 16:53:03,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:03,062 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1149 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:03,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 3599 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:03,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17669 states. [2022-03-03 16:53:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17669 to 7544. [2022-03-03 16:53:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 2.813734588360069) internal successors, (21224), 7543 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-03-03 16:53:03,232 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-03-03 16:53:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:03,232 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-03-03 16:53:03,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-03-03 16:53:03,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:03,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:03,242 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:03,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 16:53:03,242 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:03,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:03,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1169028924, now seen corresponding path program 34 times [2022-03-03 16:53:03,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:03,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272303665] [2022-03-03 16:53:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:03,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:03,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:03,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272303665] [2022-03-03 16:53:03,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272303665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:03,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:03,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:03,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399321830] [2022-03-03 16:53:03,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:03,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:03,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:03,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:03,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:03,495 INFO L87 Difference]: Start difference. First operand 7544 states and 21224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:04,050 INFO L93 Difference]: Finished difference Result 19309 states and 54928 transitions. [2022-03-03 16:53:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:04,050 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:04,085 INFO L225 Difference]: With dead ends: 19309 [2022-03-03 16:53:04,085 INFO L226 Difference]: Without dead ends: 19309 [2022-03-03 16:53:04,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:04,086 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1385 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:04,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 3148 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:04,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19309 states. [2022-03-03 16:53:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19309 to 7540. [2022-03-03 16:53:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 2.8132378299509218) internal successors, (21209), 7539 states have internal predecessors, (21209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-03-03 16:53:04,265 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-03-03 16:53:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:04,266 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-03-03 16:53:04,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-03-03 16:53:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:04,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:04,276 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:04,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 16:53:04,276 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:04,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash 613147846, now seen corresponding path program 35 times [2022-03-03 16:53:04,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:04,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470724605] [2022-03-03 16:53:04,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:04,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:04,557 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:04,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:04,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470724605] [2022-03-03 16:53:04,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470724605] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:04,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:04,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:04,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860304498] [2022-03-03 16:53:04,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:04,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:04,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:04,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:04,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:04,558 INFO L87 Difference]: Start difference. First operand 7540 states and 21209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:05,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:05,213 INFO L93 Difference]: Finished difference Result 22163 states and 62736 transitions. [2022-03-03 16:53:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-03 16:53:05,213 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:05,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:05,253 INFO L225 Difference]: With dead ends: 22163 [2022-03-03 16:53:05,254 INFO L226 Difference]: Without dead ends: 22163 [2022-03-03 16:53:05,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:53:05,254 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1282 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:05,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1282 Valid, 3523 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:05,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22163 states. [2022-03-03 16:53:05,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22163 to 8476. [2022-03-03 16:53:05,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 2.818997050147493) internal successors, (23891), 8475 states have internal predecessors, (23891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 23891 transitions. [2022-03-03 16:53:05,460 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 23891 transitions. Word has length 223 [2022-03-03 16:53:05,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:05,461 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 23891 transitions. [2022-03-03 16:53:05,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 23891 transitions. [2022-03-03 16:53:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:05,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:05,472 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:05,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 16:53:05,473 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:05,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:05,473 INFO L85 PathProgramCache]: Analyzing trace with hash -638066722, now seen corresponding path program 36 times [2022-03-03 16:53:05,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:05,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037810106] [2022-03-03 16:53:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:05,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:05,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:05,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037810106] [2022-03-03 16:53:05,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037810106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:05,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:05,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:05,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743933377] [2022-03-03 16:53:05,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:05,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:05,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:05,771 INFO L87 Difference]: Start difference. First operand 8476 states and 23891 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:06,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:06,465 INFO L93 Difference]: Finished difference Result 23424 states and 66686 transitions. [2022-03-03 16:53:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-03 16:53:06,466 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:06,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:06,510 INFO L225 Difference]: With dead ends: 23424 [2022-03-03 16:53:06,511 INFO L226 Difference]: Without dead ends: 23424 [2022-03-03 16:53:06,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:53:06,511 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1292 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:06,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1292 Valid, 3956 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23424 states. [2022-03-03 16:53:06,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23424 to 8620. [2022-03-03 16:53:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 2.8220211161387634) internal successors, (24323), 8619 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:06,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-03-03 16:53:06,732 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-03-03 16:53:06,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:06,732 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-03-03 16:53:06,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-03-03 16:53:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:06,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:06,743 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:06,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 16:53:06,743 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash 114748502, now seen corresponding path program 37 times [2022-03-03 16:53:06,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:06,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283913599] [2022-03-03 16:53:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:06,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:07,051 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:07,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:07,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283913599] [2022-03-03 16:53:07,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283913599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:07,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:07,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:07,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676283946] [2022-03-03 16:53:07,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:07,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:07,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:07,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:07,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:07,054 INFO L87 Difference]: Start difference. First operand 8620 states and 24323 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:07,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:07,610 INFO L93 Difference]: Finished difference Result 20879 states and 59701 transitions. [2022-03-03 16:53:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:07,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:07,650 INFO L225 Difference]: With dead ends: 20879 [2022-03-03 16:53:07,650 INFO L226 Difference]: Without dead ends: 20879 [2022-03-03 16:53:07,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:07,650 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1408 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:07,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 3297 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:07,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20879 states. [2022-03-03 16:53:07,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20879 to 8624. [2022-03-03 16:53:07,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8624 states, 8623 states have (on average 2.8224515829757624) internal successors, (24338), 8623 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-03-03 16:53:07,857 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-03-03 16:53:07,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:07,857 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-03-03 16:53:07,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:07,857 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-03-03 16:53:07,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:07,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:07,868 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:07,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 16:53:07,869 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:07,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1852273058, now seen corresponding path program 38 times [2022-03-03 16:53:07,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:07,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274821852] [2022-03-03 16:53:07,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:07,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:08,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:08,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274821852] [2022-03-03 16:53:08,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274821852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:08,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:08,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:08,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272458360] [2022-03-03 16:53:08,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:08,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:08,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:08,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:08,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:08,131 INFO L87 Difference]: Start difference. First operand 8624 states and 24338 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:08,697 INFO L93 Difference]: Finished difference Result 19179 states and 54611 transitions. [2022-03-03 16:53:08,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:08,697 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:08,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:08,733 INFO L225 Difference]: With dead ends: 19179 [2022-03-03 16:53:08,733 INFO L226 Difference]: Without dead ends: 19179 [2022-03-03 16:53:08,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:08,734 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1257 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:08,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 3469 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2022-03-03 16:53:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 8628. [2022-03-03 16:53:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8627 states have (on average 2.823345311232178) internal successors, (24357), 8627 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-03-03 16:53:08,931 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-03-03 16:53:08,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:08,932 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-03-03 16:53:08,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:08,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-03-03 16:53:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:08,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:08,943 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:08,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 16:53:08,945 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:08,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash -892771370, now seen corresponding path program 39 times [2022-03-03 16:53:08,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:08,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933394985] [2022-03-03 16:53:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:09,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:09,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933394985] [2022-03-03 16:53:09,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933394985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:09,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:09,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:09,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499151345] [2022-03-03 16:53:09,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:09,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:09,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:09,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:09,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:09,254 INFO L87 Difference]: Start difference. First operand 8628 states and 24357 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:09,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:09,750 INFO L93 Difference]: Finished difference Result 18919 states and 53915 transitions. [2022-03-03 16:53:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:09,751 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:09,786 INFO L225 Difference]: With dead ends: 18919 [2022-03-03 16:53:09,786 INFO L226 Difference]: Without dead ends: 18919 [2022-03-03 16:53:09,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:09,787 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1084 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:09,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 3023 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:53:09,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18919 states. [2022-03-03 16:53:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18919 to 8584. [2022-03-03 16:53:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 2.8181288593731795) internal successors, (24188), 8583 states have internal predecessors, (24188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-03-03 16:53:09,979 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-03-03 16:53:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:09,979 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-03-03 16:53:09,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-03-03 16:53:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:09,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:09,991 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:09,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 16:53:09,992 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:09,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1691161464, now seen corresponding path program 40 times [2022-03-03 16:53:09,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:09,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321880137] [2022-03-03 16:53:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:09,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:10,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:10,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321880137] [2022-03-03 16:53:10,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321880137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:10,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:10,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:10,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59030018] [2022-03-03 16:53:10,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:10,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:10,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:10,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:10,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:10,244 INFO L87 Difference]: Start difference. First operand 8584 states and 24188 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:10,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:10,898 INFO L93 Difference]: Finished difference Result 21375 states and 61229 transitions. [2022-03-03 16:53:10,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:10,899 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:10,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:10,945 INFO L225 Difference]: With dead ends: 21375 [2022-03-03 16:53:10,946 INFO L226 Difference]: Without dead ends: 21375 [2022-03-03 16:53:10,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=960, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:10,946 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1147 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:10,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 3453 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21375 states. [2022-03-03 16:53:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21375 to 8592. [2022-03-03 16:53:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-03 16:53:11,165 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-03 16:53:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:11,165 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-03 16:53:11,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-03 16:53:11,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:11,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:11,177 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:11,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 16:53:11,177 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:11,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:11,177 INFO L85 PathProgramCache]: Analyzing trace with hash 636784272, now seen corresponding path program 41 times [2022-03-03 16:53:11,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:11,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731466208] [2022-03-03 16:53:11,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:11,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:11,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:11,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731466208] [2022-03-03 16:53:11,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731466208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:11,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:11,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:11,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822583976] [2022-03-03 16:53:11,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:11,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:11,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:11,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:11,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:11,423 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:11,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:11,953 INFO L93 Difference]: Finished difference Result 20131 states and 57557 transitions. [2022-03-03 16:53:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:11,954 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:11,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:11,991 INFO L225 Difference]: With dead ends: 20131 [2022-03-03 16:53:11,992 INFO L226 Difference]: Without dead ends: 20131 [2022-03-03 16:53:11,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:11,992 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1104 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:11,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2955 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20131 states. [2022-03-03 16:53:12,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 8596. [2022-03-03 16:53:12,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-03 16:53:12,193 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-03 16:53:12,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:12,193 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-03 16:53:12,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-03 16:53:12,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:12,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:12,204 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:12,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 16:53:12,204 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:12,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1596285960, now seen corresponding path program 42 times [2022-03-03 16:53:12,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:12,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817304133] [2022-03-03 16:53:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:12,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:12,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:12,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817304133] [2022-03-03 16:53:12,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817304133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:12,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:12,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:12,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452121265] [2022-03-03 16:53:12,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:12,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:12,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:12,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:12,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:12,449 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:12,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:12,967 INFO L93 Difference]: Finished difference Result 19871 states and 56861 transitions. [2022-03-03 16:53:12,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:12,968 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:12,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:13,008 INFO L225 Difference]: With dead ends: 19871 [2022-03-03 16:53:13,008 INFO L226 Difference]: Without dead ends: 19871 [2022-03-03 16:53:13,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:13,009 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1086 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3493 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:13,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3493 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:13,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19871 states. [2022-03-03 16:53:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19871 to 8588. [2022-03-03 16:53:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 2.818097123558868) internal successors, (24199), 8587 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:13,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-03-03 16:53:13,217 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-03-03 16:53:13,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:13,217 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-03-03 16:53:13,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-03-03 16:53:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:13,228 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:13,228 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:13,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 16:53:13,229 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:13,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:13,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1518047040, now seen corresponding path program 43 times [2022-03-03 16:53:13,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:13,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618793211] [2022-03-03 16:53:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:13,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:13,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:13,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618793211] [2022-03-03 16:53:13,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618793211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:13,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:13,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:13,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895280133] [2022-03-03 16:53:13,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:13,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:13,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:13,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:13,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:13,545 INFO L87 Difference]: Start difference. First operand 8588 states and 24199 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:14,110 INFO L93 Difference]: Finished difference Result 19639 states and 56032 transitions. [2022-03-03 16:53:14,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:14,110 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:14,143 INFO L225 Difference]: With dead ends: 19639 [2022-03-03 16:53:14,144 INFO L226 Difference]: Without dead ends: 19639 [2022-03-03 16:53:14,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:14,144 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1218 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:14,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1218 Valid, 3471 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:14,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19639 states. [2022-03-03 16:53:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19639 to 8596. [2022-03-03 16:53:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-03 16:53:14,333 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-03 16:53:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:14,333 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-03 16:53:14,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-03 16:53:14,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:14,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:14,347 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:14,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 16:53:14,348 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:14,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:14,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1817418568, now seen corresponding path program 44 times [2022-03-03 16:53:14,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:14,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992649148] [2022-03-03 16:53:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:14,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:14,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992649148] [2022-03-03 16:53:14,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992649148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:14,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:14,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:14,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293640316] [2022-03-03 16:53:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:14,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:14,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:14,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:14,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:14,606 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:15,162 INFO L93 Difference]: Finished difference Result 19463 states and 55579 transitions. [2022-03-03 16:53:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:15,199 INFO L225 Difference]: With dead ends: 19463 [2022-03-03 16:53:15,199 INFO L226 Difference]: Without dead ends: 19463 [2022-03-03 16:53:15,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:15,200 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1227 mSDsluCounter, 2735 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:15,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 3056 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:15,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19463 states. [2022-03-03 16:53:15,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19463 to 8592. [2022-03-03 16:53:15,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-03 16:53:15,395 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-03 16:53:15,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:15,396 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-03 16:53:15,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:15,396 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-03 16:53:15,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:15,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:15,408 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:15,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 16:53:15,408 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:15,408 INFO L85 PathProgramCache]: Analyzing trace with hash 781772970, now seen corresponding path program 45 times [2022-03-03 16:53:15,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:15,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612901602] [2022-03-03 16:53:15,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:15,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:15,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:15,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612901602] [2022-03-03 16:53:15,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612901602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:15,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:15,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:15,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104537028] [2022-03-03 16:53:15,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:15,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:15,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:15,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:15,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:15,657 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:16,342 INFO L93 Difference]: Finished difference Result 20599 states and 58827 transitions. [2022-03-03 16:53:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:16,342 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:16,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:16,478 INFO L225 Difference]: With dead ends: 20599 [2022-03-03 16:53:16,478 INFO L226 Difference]: Without dead ends: 20599 [2022-03-03 16:53:16,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:16,478 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1308 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:16,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1308 Valid, 3695 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:16,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20599 states. [2022-03-03 16:53:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20599 to 8548. [2022-03-03 16:53:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 8547 states have (on average 2.8184158184158186) internal successors, (24089), 8547 states have internal predecessors, (24089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:16,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 24089 transitions. [2022-03-03 16:53:16,646 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 24089 transitions. Word has length 223 [2022-03-03 16:53:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:16,646 INFO L470 AbstractCegarLoop]: Abstraction has 8548 states and 24089 transitions. [2022-03-03 16:53:16,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 24089 transitions. [2022-03-03 16:53:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:16,659 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:16,659 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:16,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 16:53:16,659 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:16,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1550444754, now seen corresponding path program 46 times [2022-03-03 16:53:16,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:16,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465957554] [2022-03-03 16:53:16,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:16,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:16,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:16,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465957554] [2022-03-03 16:53:16,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465957554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:16,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:16,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:16,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567237603] [2022-03-03 16:53:16,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:16,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:16,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:16,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:16,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:16,908 INFO L87 Difference]: Start difference. First operand 8548 states and 24089 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:17,601 INFO L93 Difference]: Finished difference Result 22432 states and 64293 transitions. [2022-03-03 16:53:17,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:17,602 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:17,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:17,645 INFO L225 Difference]: With dead ends: 22432 [2022-03-03 16:53:17,645 INFO L226 Difference]: Without dead ends: 22432 [2022-03-03 16:53:17,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:17,645 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1161 mSDsluCounter, 3504 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:17,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 3817 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:17,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22432 states. [2022-03-03 16:53:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22432 to 8592. [2022-03-03 16:53:17,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-03 16:53:17,870 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-03 16:53:17,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:17,870 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-03 16:53:17,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:17,870 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-03 16:53:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:17,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:17,883 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:17,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 16:53:17,883 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:17,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:17,883 INFO L85 PathProgramCache]: Analyzing trace with hash -416576806, now seen corresponding path program 47 times [2022-03-03 16:53:17,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:17,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446393566] [2022-03-03 16:53:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:17,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:18,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:18,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446393566] [2022-03-03 16:53:18,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446393566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:18,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:18,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:18,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878676368] [2022-03-03 16:53:18,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:18,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:18,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:18,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:18,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:18,125 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:18,648 INFO L93 Difference]: Finished difference Result 21188 states and 60621 transitions. [2022-03-03 16:53:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:18,652 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:18,744 INFO L225 Difference]: With dead ends: 21188 [2022-03-03 16:53:18,745 INFO L226 Difference]: Without dead ends: 21188 [2022-03-03 16:53:18,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:18,745 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1287 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:18,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 3144 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:18,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21188 states. [2022-03-03 16:53:18,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21188 to 8596. [2022-03-03 16:53:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-03 16:53:18,915 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-03 16:53:18,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:18,915 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-03 16:53:18,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-03 16:53:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:18,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:18,928 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:18,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 16:53:18,928 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash 542924882, now seen corresponding path program 48 times [2022-03-03 16:53:18,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:18,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136653785] [2022-03-03 16:53:18,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:18,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:19,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:19,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136653785] [2022-03-03 16:53:19,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136653785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:19,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:19,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:19,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222320631] [2022-03-03 16:53:19,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:19,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:19,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:19,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:19,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:19,170 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:19,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:19,630 INFO L93 Difference]: Finished difference Result 20928 states and 59925 transitions. [2022-03-03 16:53:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:19,630 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:19,670 INFO L225 Difference]: With dead ends: 20928 [2022-03-03 16:53:19,670 INFO L226 Difference]: Without dead ends: 20928 [2022-03-03 16:53:19,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:19,671 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1040 mSDsluCounter, 2691 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:19,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 3010 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:53:19,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20928 states. [2022-03-03 16:53:19,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20928 to 8588. [2022-03-03 16:53:19,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 2.818097123558868) internal successors, (24199), 8587 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-03-03 16:53:19,878 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-03-03 16:53:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:19,878 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-03-03 16:53:19,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-03-03 16:53:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:19,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:19,890 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:19,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 16:53:19,890 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash 464685962, now seen corresponding path program 49 times [2022-03-03 16:53:19,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:19,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415608990] [2022-03-03 16:53:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:19,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:20,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:20,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415608990] [2022-03-03 16:53:20,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415608990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:20,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:20,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:20,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137895001] [2022-03-03 16:53:20,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:20,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:20,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:20,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:20,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:20,155 INFO L87 Difference]: Start difference. First operand 8588 states and 24199 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:20,602 INFO L93 Difference]: Finished difference Result 21596 states and 61899 transitions. [2022-03-03 16:53:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:20,602 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:20,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:20,644 INFO L225 Difference]: With dead ends: 21596 [2022-03-03 16:53:20,644 INFO L226 Difference]: Without dead ends: 21596 [2022-03-03 16:53:20,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:20,645 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1285 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:20,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1285 Valid, 3157 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:53:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21596 states. [2022-03-03 16:53:20,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21596 to 8596. [2022-03-03 16:53:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-03 16:53:20,895 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-03 16:53:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:20,895 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-03 16:53:20,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-03 16:53:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:20,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:20,908 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:20,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 16:53:20,908 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1424187650, now seen corresponding path program 50 times [2022-03-03 16:53:20,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:20,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721235136] [2022-03-03 16:53:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:20,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:21,162 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:21,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:21,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721235136] [2022-03-03 16:53:21,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721235136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:21,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:21,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:21,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445303857] [2022-03-03 16:53:21,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:21,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:21,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:21,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:21,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:21,164 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:21,789 INFO L93 Difference]: Finished difference Result 21420 states and 61446 transitions. [2022-03-03 16:53:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:21,831 INFO L225 Difference]: With dead ends: 21420 [2022-03-03 16:53:21,832 INFO L226 Difference]: Without dead ends: 21420 [2022-03-03 16:53:21,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:21,832 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1287 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:21,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 3638 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:21,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21420 states. [2022-03-03 16:53:22,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21420 to 8592. [2022-03-03 16:53:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:22,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-03 16:53:22,045 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-03 16:53:22,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:22,045 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-03 16:53:22,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-03 16:53:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:22,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:22,058 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:22,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 16:53:22,059 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:22,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash -271588108, now seen corresponding path program 51 times [2022-03-03 16:53:22,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:22,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468386684] [2022-03-03 16:53:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:22,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:22,316 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:22,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:22,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468386684] [2022-03-03 16:53:22,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468386684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:22,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:22,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:22,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678365797] [2022-03-03 16:53:22,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:22,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:22,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:22,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:22,318 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:22,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:22,958 INFO L93 Difference]: Finished difference Result 22604 states and 64826 transitions. [2022-03-03 16:53:22,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:22,958 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:22,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:23,077 INFO L225 Difference]: With dead ends: 22604 [2022-03-03 16:53:23,077 INFO L226 Difference]: Without dead ends: 22604 [2022-03-03 16:53:23,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:23,077 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1011 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:23,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 3509 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:23,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22604 states. [2022-03-03 16:53:23,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22604 to 8584. [2022-03-03 16:53:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 2.8181288593731795) internal successors, (24188), 8583 states have internal predecessors, (24188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:23,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-03-03 16:53:23,333 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-03-03 16:53:23,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:23,334 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-03-03 16:53:23,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:23,334 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-03-03 16:53:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:23,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:23,349 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:23,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 16:53:23,349 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:23,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:23,350 INFO L85 PathProgramCache]: Analyzing trace with hash -485485282, now seen corresponding path program 52 times [2022-03-03 16:53:23,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:23,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587619675] [2022-03-03 16:53:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:23,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:23,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:23,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587619675] [2022-03-03 16:53:23,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587619675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:23,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:23,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:23,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520602600] [2022-03-03 16:53:23,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:23,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:23,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:23,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:23,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:23,612 INFO L87 Difference]: Start difference. First operand 8584 states and 24188 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:24,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:24,117 INFO L93 Difference]: Finished difference Result 20692 states and 59085 transitions. [2022-03-03 16:53:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:24,118 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:24,157 INFO L225 Difference]: With dead ends: 20692 [2022-03-03 16:53:24,157 INFO L226 Difference]: Without dead ends: 20692 [2022-03-03 16:53:24,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:24,158 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1382 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 3651 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:24,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 3651 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:24,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-03-03 16:53:24,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8628. [2022-03-03 16:53:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8627 states have (on average 2.823345311232178) internal successors, (24357), 8627 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-03-03 16:53:24,372 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-03-03 16:53:24,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:24,373 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-03-03 16:53:24,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-03-03 16:53:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:24,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:24,386 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:24,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 16:53:24,386 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:24,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:24,386 INFO L85 PathProgramCache]: Analyzing trace with hash 474016406, now seen corresponding path program 53 times [2022-03-03 16:53:24,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:24,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427503995] [2022-03-03 16:53:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:24,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:24,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:24,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427503995] [2022-03-03 16:53:24,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427503995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:24,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:24,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:24,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410593048] [2022-03-03 16:53:24,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:24,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:24,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:24,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:24,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:24,609 INFO L87 Difference]: Start difference. First operand 8628 states and 24357 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:25,181 INFO L93 Difference]: Finished difference Result 20516 states and 58632 transitions. [2022-03-03 16:53:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:25,181 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:25,224 INFO L225 Difference]: With dead ends: 20516 [2022-03-03 16:53:25,224 INFO L226 Difference]: Without dead ends: 20516 [2022-03-03 16:53:25,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:25,225 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1301 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:25,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 3621 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20516 states. [2022-03-03 16:53:25,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20516 to 8624. [2022-03-03 16:53:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8624 states, 8623 states have (on average 2.8224515829757624) internal successors, (24338), 8623 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-03-03 16:53:25,441 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-03-03 16:53:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:25,442 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-03-03 16:53:25,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-03-03 16:53:25,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:25,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:25,455 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:25,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 16:53:25,455 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1221759352, now seen corresponding path program 54 times [2022-03-03 16:53:25,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:25,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175944095] [2022-03-03 16:53:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:25,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:25,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:25,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175944095] [2022-03-03 16:53:25,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175944095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:25,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:25,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:25,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346510152] [2022-03-03 16:53:25,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:25,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:25,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:25,660 INFO L87 Difference]: Start difference. First operand 8624 states and 24338 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:26,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:26,156 INFO L93 Difference]: Finished difference Result 22156 states and 63426 transitions. [2022-03-03 16:53:26,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:26,157 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:26,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:26,198 INFO L225 Difference]: With dead ends: 22156 [2022-03-03 16:53:26,198 INFO L226 Difference]: Without dead ends: 22156 [2022-03-03 16:53:26,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:26,199 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 994 mSDsluCounter, 3579 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:26,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 3929 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:26,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22156 states. [2022-03-03 16:53:26,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22156 to 8620. [2022-03-03 16:53:26,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 2.8220211161387634) internal successors, (24323), 8619 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-03-03 16:53:26,415 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-03-03 16:53:26,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:26,415 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-03-03 16:53:26,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-03-03 16:53:26,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:26,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:26,428 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:26,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 16:53:26,429 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:26,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:26,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1777640430, now seen corresponding path program 55 times [2022-03-03 16:53:26,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:26,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429796485] [2022-03-03 16:53:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:26,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:26,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:26,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429796485] [2022-03-03 16:53:26,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429796485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:26,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:26,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:26,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391928299] [2022-03-03 16:53:26,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:26,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:26,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:26,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:26,591 INFO L87 Difference]: Start difference. First operand 8620 states and 24323 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:27,166 INFO L93 Difference]: Finished difference Result 25218 states and 71830 transitions. [2022-03-03 16:53:27,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-03 16:53:27,167 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:27,219 INFO L225 Difference]: With dead ends: 25218 [2022-03-03 16:53:27,219 INFO L226 Difference]: Without dead ends: 25218 [2022-03-03 16:53:27,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:53:27,219 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1495 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:27,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1495 Valid, 3869 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25218 states. [2022-03-03 16:53:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25218 to 8224. [2022-03-03 16:53:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8224 states, 8223 states have (on average 2.821111516478171) internal successors, (23198), 8223 states have internal predecessors, (23198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8224 states to 8224 states and 23198 transitions. [2022-03-03 16:53:27,458 INFO L78 Accepts]: Start accepts. Automaton has 8224 states and 23198 transitions. Word has length 223 [2022-03-03 16:53:27,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:27,459 INFO L470 AbstractCegarLoop]: Abstraction has 8224 states and 23198 transitions. [2022-03-03 16:53:27,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 8224 states and 23198 transitions. [2022-03-03 16:53:27,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:27,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:27,470 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:27,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 16:53:27,470 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:27,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1997484100, now seen corresponding path program 56 times [2022-03-03 16:53:27,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:27,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106134651] [2022-03-03 16:53:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:27,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:27,677 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:27,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:27,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106134651] [2022-03-03 16:53:27,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106134651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:27,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:27,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:27,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923157037] [2022-03-03 16:53:27,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:27,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:27,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:27,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:27,679 INFO L87 Difference]: Start difference. First operand 8224 states and 23198 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:28,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:28,345 INFO L93 Difference]: Finished difference Result 21842 states and 62640 transitions. [2022-03-03 16:53:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-03 16:53:28,345 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:28,387 INFO L225 Difference]: With dead ends: 21842 [2022-03-03 16:53:28,387 INFO L226 Difference]: Without dead ends: 21842 [2022-03-03 16:53:28,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:53:28,388 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1309 mSDsluCounter, 3216 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:28,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 3568 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:28,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21842 states. [2022-03-03 16:53:28,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21842 to 8300. [2022-03-03 16:53:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8300 states, 8299 states have (on average 2.8247981684540306) internal successors, (23443), 8299 states have internal predecessors, (23443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8300 states to 8300 states and 23443 transitions. [2022-03-03 16:53:28,602 INFO L78 Accepts]: Start accepts. Automaton has 8300 states and 23443 transitions. Word has length 223 [2022-03-03 16:53:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:28,602 INFO L470 AbstractCegarLoop]: Abstraction has 8300 states and 23443 transitions. [2022-03-03 16:53:28,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 8300 states and 23443 transitions. [2022-03-03 16:53:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:28,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:28,613 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:28,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 16:53:28,614 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:28,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:28,614 INFO L85 PathProgramCache]: Analyzing trace with hash 186521022, now seen corresponding path program 57 times [2022-03-03 16:53:28,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:28,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041008404] [2022-03-03 16:53:28,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:28,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:28,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:28,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041008404] [2022-03-03 16:53:28,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041008404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:28,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:28,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:28,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285853846] [2022-03-03 16:53:28,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:28,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:28,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:28,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:28,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:28,831 INFO L87 Difference]: Start difference. First operand 8300 states and 23443 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:29,413 INFO L93 Difference]: Finished difference Result 17140 states and 49239 transitions. [2022-03-03 16:53:29,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:29,413 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:29,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:29,446 INFO L225 Difference]: With dead ends: 17140 [2022-03-03 16:53:29,446 INFO L226 Difference]: Without dead ends: 17140 [2022-03-03 16:53:29,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:29,447 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1109 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:29,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 3213 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:29,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17140 states. [2022-03-03 16:53:29,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17140 to 8308. [2022-03-03 16:53:29,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8308 states, 8307 states have (on average 2.826170699410136) internal successors, (23477), 8307 states have internal predecessors, (23477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8308 states to 8308 states and 23477 transitions. [2022-03-03 16:53:29,628 INFO L78 Accepts]: Start accepts. Automaton has 8308 states and 23477 transitions. Word has length 223 [2022-03-03 16:53:29,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:29,628 INFO L470 AbstractCegarLoop]: Abstraction has 8308 states and 23477 transitions. [2022-03-03 16:53:29,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:29,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8308 states and 23477 transitions. [2022-03-03 16:53:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:29,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:29,640 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:29,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 16:53:29,641 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:29,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:29,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1146022710, now seen corresponding path program 58 times [2022-03-03 16:53:29,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:29,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125396127] [2022-03-03 16:53:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:29,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:29,864 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:29,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:29,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125396127] [2022-03-03 16:53:29,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125396127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:29,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:29,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:29,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533176545] [2022-03-03 16:53:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:29,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:29,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:29,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:29,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:29,865 INFO L87 Difference]: Start difference. First operand 8308 states and 23477 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:30,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:30,381 INFO L93 Difference]: Finished difference Result 17015 states and 48924 transitions. [2022-03-03 16:53:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:30,381 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:30,412 INFO L225 Difference]: With dead ends: 17015 [2022-03-03 16:53:30,413 INFO L226 Difference]: Without dead ends: 17015 [2022-03-03 16:53:30,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:30,419 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1157 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:30,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 3222 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2022-03-03 16:53:30,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 8304. [2022-03-03 16:53:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8304 states, 8303 states have (on average 2.825243887751415) internal successors, (23458), 8303 states have internal predecessors, (23458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8304 states to 8304 states and 23458 transitions. [2022-03-03 16:53:30,606 INFO L78 Accepts]: Start accepts. Automaton has 8304 states and 23458 transitions. Word has length 223 [2022-03-03 16:53:30,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:30,607 INFO L470 AbstractCegarLoop]: Abstraction has 8304 states and 23458 transitions. [2022-03-03 16:53:30,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:30,607 INFO L276 IsEmpty]: Start isEmpty. Operand 8304 states and 23458 transitions. [2022-03-03 16:53:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:30,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:30,678 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:30,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 16:53:30,679 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:30,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:30,680 INFO L85 PathProgramCache]: Analyzing trace with hash -549753048, now seen corresponding path program 59 times [2022-03-03 16:53:30,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:30,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633074494] [2022-03-03 16:53:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:30,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:30,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:30,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633074494] [2022-03-03 16:53:30,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633074494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:30,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:30,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:30,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293486785] [2022-03-03 16:53:30,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:30,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:30,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:30,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:30,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:30,939 INFO L87 Difference]: Start difference. First operand 8304 states and 23458 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:31,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:31,596 INFO L93 Difference]: Finished difference Result 18643 states and 53681 transitions. [2022-03-03 16:53:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:31,596 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:31,635 INFO L225 Difference]: With dead ends: 18643 [2022-03-03 16:53:31,635 INFO L226 Difference]: Without dead ends: 18643 [2022-03-03 16:53:31,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:31,636 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1112 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 4031 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:31,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 4031 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:31,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18643 states. [2022-03-03 16:53:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18643 to 8264. [2022-03-03 16:53:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8263 states have (on average 2.820767275807818) internal successors, (23308), 8263 states have internal predecessors, (23308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 23308 transitions. [2022-03-03 16:53:31,841 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 23308 transitions. Word has length 223 [2022-03-03 16:53:31,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:31,841 INFO L470 AbstractCegarLoop]: Abstraction has 8264 states and 23308 transitions. [2022-03-03 16:53:31,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:31,841 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 23308 transitions. [2022-03-03 16:53:31,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:31,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:31,854 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:31,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 16:53:31,854 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:31,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1356097652, now seen corresponding path program 60 times [2022-03-03 16:53:31,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:31,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123945126] [2022-03-03 16:53:31,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:31,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:32,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:32,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123945126] [2022-03-03 16:53:32,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123945126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:32,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:32,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:32,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343993875] [2022-03-03 16:53:32,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:32,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:32,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:32,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:32,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:32,055 INFO L87 Difference]: Start difference. First operand 8264 states and 23308 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:32,511 INFO L93 Difference]: Finished difference Result 17336 states and 49761 transitions. [2022-03-03 16:53:32,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:32,511 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:32,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:32,547 INFO L225 Difference]: With dead ends: 17336 [2022-03-03 16:53:32,547 INFO L226 Difference]: Without dead ends: 17336 [2022-03-03 16:53:32,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:32,547 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1247 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:32,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 3283 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:53:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17336 states. [2022-03-03 16:53:32,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17336 to 8272. [2022-03-03 16:53:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.821182444686253) internal successors, (23334), 8271 states have internal predecessors, (23334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-03-03 16:53:32,736 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-03-03 16:53:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:32,736 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-03-03 16:53:32,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-03-03 16:53:32,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:32,747 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:32,747 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:32,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 16:53:32,748 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:32,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:32,748 INFO L85 PathProgramCache]: Analyzing trace with hash 971848084, now seen corresponding path program 61 times [2022-03-03 16:53:32,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:32,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281269055] [2022-03-03 16:53:32,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:32,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:32,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:32,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281269055] [2022-03-03 16:53:32,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281269055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:32,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:32,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:32,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523629411] [2022-03-03 16:53:32,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:32,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:32,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:32,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:32,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:32,957 INFO L87 Difference]: Start difference. First operand 8272 states and 23334 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:33,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:33,359 INFO L93 Difference]: Finished difference Result 16036 states and 45923 transitions. [2022-03-03 16:53:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:33,360 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:33,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:33,393 INFO L225 Difference]: With dead ends: 16036 [2022-03-03 16:53:33,394 INFO L226 Difference]: Without dead ends: 16036 [2022-03-03 16:53:33,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:33,394 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1022 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:33,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 3234 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:53:33,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-03-03 16:53:33,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 8276. [2022-03-03 16:53:33,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.822114803625378) internal successors, (23353), 8275 states have internal predecessors, (23353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-03-03 16:53:33,635 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-03-03 16:53:33,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:33,635 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-03-03 16:53:33,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:33,635 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-03-03 16:53:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:33,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:33,646 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:33,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 16:53:33,646 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1931349772, now seen corresponding path program 62 times [2022-03-03 16:53:33,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:33,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721511108] [2022-03-03 16:53:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:33,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:33,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:33,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721511108] [2022-03-03 16:53:33,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721511108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:33,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:33,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:33,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667251726] [2022-03-03 16:53:33,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:33,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:33,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:33,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:33,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:33,893 INFO L87 Difference]: Start difference. First operand 8276 states and 23353 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:34,427 INFO L93 Difference]: Finished difference Result 15776 states and 45227 transitions. [2022-03-03 16:53:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:34,427 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:34,456 INFO L225 Difference]: With dead ends: 15776 [2022-03-03 16:53:34,456 INFO L226 Difference]: Without dead ends: 15776 [2022-03-03 16:53:34,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:34,457 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 996 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:34,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [996 Valid, 2920 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2022-03-03 16:53:34,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 8268. [2022-03-03 16:53:34,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8268 states, 8267 states have (on average 2.820733034958268) internal successors, (23319), 8267 states have internal predecessors, (23319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23319 transitions. [2022-03-03 16:53:34,625 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23319 transitions. Word has length 223 [2022-03-03 16:53:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:34,625 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23319 transitions. [2022-03-03 16:53:34,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23319 transitions. [2022-03-03 16:53:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:34,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:34,636 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:34,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 16:53:34,636 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:34,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:34,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1853110852, now seen corresponding path program 63 times [2022-03-03 16:53:34,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:34,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526391874] [2022-03-03 16:53:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:34,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:34,885 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:34,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:34,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526391874] [2022-03-03 16:53:34,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526391874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:34,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:34,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:34,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729438691] [2022-03-03 16:53:34,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:34,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:34,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:34,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:34,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:34,887 INFO L87 Difference]: Start difference. First operand 8268 states and 23319 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:35,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:35,480 INFO L93 Difference]: Finished difference Result 16444 states and 47201 transitions. [2022-03-03 16:53:35,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:35,481 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:35,512 INFO L225 Difference]: With dead ends: 16444 [2022-03-03 16:53:35,513 INFO L226 Difference]: Without dead ends: 16444 [2022-03-03 16:53:35,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:35,513 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1275 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:35,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1275 Valid, 3277 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16444 states. [2022-03-03 16:53:35,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16444 to 8276. [2022-03-03 16:53:35,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.822114803625378) internal successors, (23353), 8275 states have internal predecessors, (23353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-03-03 16:53:35,691 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-03-03 16:53:35,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:35,692 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-03-03 16:53:35,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:35,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-03-03 16:53:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:35,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:35,704 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:35,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-03 16:53:35,704 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1482354756, now seen corresponding path program 64 times [2022-03-03 16:53:35,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:35,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126213353] [2022-03-03 16:53:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:35,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:35,927 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:35,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:35,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126213353] [2022-03-03 16:53:35,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126213353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:35,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:35,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:35,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544237638] [2022-03-03 16:53:35,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:35,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:35,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:35,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:35,929 INFO L87 Difference]: Start difference. First operand 8276 states and 23353 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:36,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:36,592 INFO L93 Difference]: Finished difference Result 16268 states and 46748 transitions. [2022-03-03 16:53:36,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:36,593 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:36,628 INFO L225 Difference]: With dead ends: 16268 [2022-03-03 16:53:36,628 INFO L226 Difference]: Without dead ends: 16268 [2022-03-03 16:53:36,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:36,629 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 963 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:36,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 3529 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16268 states. [2022-03-03 16:53:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16268 to 8272. [2022-03-03 16:53:36,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.821182444686253) internal successors, (23334), 8271 states have internal predecessors, (23334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:36,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-03-03 16:53:36,805 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-03-03 16:53:36,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:36,805 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-03-03 16:53:36,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:36,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-03-03 16:53:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:36,819 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:36,819 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:36,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-03 16:53:36,819 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:36,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1116836782, now seen corresponding path program 65 times [2022-03-03 16:53:36,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:36,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971759057] [2022-03-03 16:53:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:36,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:37,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:37,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971759057] [2022-03-03 16:53:37,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971759057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:37,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:37,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:37,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807558590] [2022-03-03 16:53:37,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:37,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:37,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:37,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:37,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:37,069 INFO L87 Difference]: Start difference. First operand 8272 states and 23334 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:37,638 INFO L93 Difference]: Finished difference Result 17452 states and 50128 transitions. [2022-03-03 16:53:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:37,638 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:37,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:37,671 INFO L225 Difference]: With dead ends: 17452 [2022-03-03 16:53:37,671 INFO L226 Difference]: Without dead ends: 17452 [2022-03-03 16:53:37,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=970, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:37,672 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1042 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:37,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 3553 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17452 states. [2022-03-03 16:53:37,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17452 to 8228. [2022-03-03 16:53:37,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8228 states, 8227 states have (on average 2.8210769417770756) internal successors, (23209), 8227 states have internal predecessors, (23209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 23209 transitions. [2022-03-03 16:53:37,856 INFO L78 Accepts]: Start accepts. Automaton has 8228 states and 23209 transitions. Word has length 223 [2022-03-03 16:53:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:37,856 INFO L470 AbstractCegarLoop]: Abstraction has 8228 states and 23209 transitions. [2022-03-03 16:53:37,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:37,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8228 states and 23209 transitions. [2022-03-03 16:53:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:37,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:37,868 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:37,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-03 16:53:37,868 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:37,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:37,868 INFO L85 PathProgramCache]: Analyzing trace with hash -70816108, now seen corresponding path program 66 times [2022-03-03 16:53:37,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:37,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683885025] [2022-03-03 16:53:37,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:37,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:38,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:38,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683885025] [2022-03-03 16:53:38,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683885025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:38,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:38,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:38,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243457081] [2022-03-03 16:53:38,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:38,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:38,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:38,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:38,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:38,024 INFO L87 Difference]: Start difference. First operand 8228 states and 23209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:38,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:38,578 INFO L93 Difference]: Finished difference Result 20532 states and 58718 transitions. [2022-03-03 16:53:38,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-03 16:53:38,578 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:38,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:38,616 INFO L225 Difference]: With dead ends: 20532 [2022-03-03 16:53:38,616 INFO L226 Difference]: Without dead ends: 20532 [2022-03-03 16:53:38,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:53:38,617 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1193 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:38,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 4157 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:38,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20532 states. [2022-03-03 16:53:38,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20532 to 8268. [2022-03-03 16:53:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8268 states, 8267 states have (on average 2.825571549534293) internal successors, (23359), 8267 states have internal predecessors, (23359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23359 transitions. [2022-03-03 16:53:38,876 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23359 transitions. Word has length 223 [2022-03-03 16:53:38,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:38,876 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23359 transitions. [2022-03-03 16:53:38,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:38,877 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23359 transitions. [2022-03-03 16:53:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:38,887 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:38,887 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:38,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-03 16:53:38,887 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:38,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2113189014, now seen corresponding path program 67 times [2022-03-03 16:53:38,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:38,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551058309] [2022-03-03 16:53:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:39,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:39,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551058309] [2022-03-03 16:53:39,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551058309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:39,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:39,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:39,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332205095] [2022-03-03 16:53:39,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:39,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:39,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:39,087 INFO L87 Difference]: Start difference. First operand 8268 states and 23359 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:39,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:39,553 INFO L93 Difference]: Finished difference Result 15295 states and 43672 transitions. [2022-03-03 16:53:39,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:39,554 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:39,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:39,583 INFO L225 Difference]: With dead ends: 15295 [2022-03-03 16:53:39,583 INFO L226 Difference]: Without dead ends: 15295 [2022-03-03 16:53:39,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:39,584 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1189 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:39,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 3640 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:53:39,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15295 states. [2022-03-03 16:53:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15295 to 8276. [2022-03-03 16:53:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.826948640483384) internal successors, (23393), 8275 states have internal predecessors, (23393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23393 transitions. [2022-03-03 16:53:39,750 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23393 transitions. Word has length 223 [2022-03-03 16:53:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:39,751 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23393 transitions. [2022-03-03 16:53:39,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23393 transitions. [2022-03-03 16:53:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:39,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:39,762 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:39,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-03 16:53:39,762 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:39,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1222276594, now seen corresponding path program 68 times [2022-03-03 16:53:39,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:39,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2255113] [2022-03-03 16:53:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:39,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:40,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:40,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2255113] [2022-03-03 16:53:40,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2255113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:40,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:40,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:40,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190669283] [2022-03-03 16:53:40,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:40,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:40,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:40,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:40,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:40,014 INFO L87 Difference]: Start difference. First operand 8276 states and 23393 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:40,663 INFO L93 Difference]: Finished difference Result 15170 states and 43357 transitions. [2022-03-03 16:53:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:40,663 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:40,692 INFO L225 Difference]: With dead ends: 15170 [2022-03-03 16:53:40,692 INFO L226 Difference]: Without dead ends: 15170 [2022-03-03 16:53:40,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=252, Invalid=870, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:53:40,692 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1033 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 3723 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:40,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 3723 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15170 states. [2022-03-03 16:53:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15170 to 8272. [2022-03-03 16:53:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.8260186192721557) internal successors, (23374), 8271 states have internal predecessors, (23374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23374 transitions. [2022-03-03 16:53:40,862 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23374 transitions. Word has length 223 [2022-03-03 16:53:40,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:40,862 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23374 transitions. [2022-03-03 16:53:40,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:40,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23374 transitions. [2022-03-03 16:53:40,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:40,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:40,873 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:40,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-03 16:53:40,874 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:40,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1376914944, now seen corresponding path program 69 times [2022-03-03 16:53:40,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:40,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665986055] [2022-03-03 16:53:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:40,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:41,069 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:41,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:41,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665986055] [2022-03-03 16:53:41,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665986055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:41,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:41,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:41,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490489184] [2022-03-03 16:53:41,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:41,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:41,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:41,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:41,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:41,071 INFO L87 Difference]: Start difference. First operand 8272 states and 23374 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:41,696 INFO L93 Difference]: Finished difference Result 16810 states and 48151 transitions. [2022-03-03 16:53:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:41,696 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:41,728 INFO L225 Difference]: With dead ends: 16810 [2022-03-03 16:53:41,728 INFO L226 Difference]: Without dead ends: 16810 [2022-03-03 16:53:41,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:53:41,729 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1095 mSDsluCounter, 3217 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:41,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 3548 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 16:53:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2022-03-03 16:53:41,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 8232. [2022-03-03 16:53:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8232 states, 8231 states have (on average 2.821528368363504) internal successors, (23224), 8231 states have internal predecessors, (23224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:41,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8232 states to 8232 states and 23224 transitions. [2022-03-03 16:53:41,919 INFO L78 Accepts]: Start accepts. Automaton has 8232 states and 23224 transitions. Word has length 223 [2022-03-03 16:53:41,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:41,919 INFO L470 AbstractCegarLoop]: Abstraction has 8232 states and 23224 transitions. [2022-03-03 16:53:41,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:41,919 INFO L276 IsEmpty]: Start isEmpty. Operand 8232 states and 23224 transitions. [2022-03-03 16:53:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-03 16:53:41,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:41,931 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:41,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-03 16:53:41,931 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:41,932 INFO L85 PathProgramCache]: Analyzing trace with hash -556140130, now seen corresponding path program 70 times [2022-03-03 16:53:41,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:41,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204207772] [2022-03-03 16:53:41,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:41,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:42,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:42,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204207772] [2022-03-03 16:53:42,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204207772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:42,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:42,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-03 16:53:42,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179244446] [2022-03-03 16:53:42,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:42,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-03 16:53:42,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-03 16:53:42,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:42,157 INFO L87 Difference]: Start difference. First operand 8232 states and 23224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:43,040 INFO L93 Difference]: Finished difference Result 21876 states and 62326 transitions. [2022-03-03 16:53:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 16:53:43,040 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-03-03 16:53:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:43,082 INFO L225 Difference]: With dead ends: 21876 [2022-03-03 16:53:43,083 INFO L226 Difference]: Without dead ends: 21876 [2022-03-03 16:53:43,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 16:53:43,083 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 1516 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:43,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1516 Valid, 4202 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:53:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21876 states. [2022-03-03 16:53:43,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21876 to 8336. [2022-03-03 16:53:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8336 states, 8335 states have (on average 2.8220755848830232) internal successors, (23522), 8335 states have internal predecessors, (23522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 23522 transitions. [2022-03-03 16:53:43,279 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 23522 transitions. Word has length 223 [2022-03-03 16:53:43,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:43,279 INFO L470 AbstractCegarLoop]: Abstraction has 8336 states and 23522 transitions. [2022-03-03 16:53:43,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 23522 transitions. [2022-03-03 16:53:43,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:43,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:43,290 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:43,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-03 16:53:43,290 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:43,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1960384399, now seen corresponding path program 1 times [2022-03-03 16:53:43,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:43,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283056721] [2022-03-03 16:53:43,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:43,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:43,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283056721] [2022-03-03 16:53:43,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283056721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:43,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:43,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:43,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492767388] [2022-03-03 16:53:43,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:43,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:43,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:43,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:43,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:43,395 INFO L87 Difference]: Start difference. First operand 8336 states and 23522 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:43,640 INFO L93 Difference]: Finished difference Result 10171 states and 28081 transitions. [2022-03-03 16:53:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:53:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:43,657 INFO L225 Difference]: With dead ends: 10171 [2022-03-03 16:53:43,657 INFO L226 Difference]: Without dead ends: 10024 [2022-03-03 16:53:43,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:53:43,657 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 306 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:43,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2753 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:43,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2022-03-03 16:53:43,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 9870. [2022-03-03 16:53:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9870 states, 9869 states have (on average 2.7776877089877394) internal successors, (27413), 9869 states have internal predecessors, (27413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:43,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9870 states to 9870 states and 27413 transitions. [2022-03-03 16:53:43,790 INFO L78 Accepts]: Start accepts. Automaton has 9870 states and 27413 transitions. Word has length 227 [2022-03-03 16:53:43,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:43,790 INFO L470 AbstractCegarLoop]: Abstraction has 9870 states and 27413 transitions. [2022-03-03 16:53:43,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 9870 states and 27413 transitions. [2022-03-03 16:53:43,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:43,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:43,803 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:43,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-03 16:53:43,803 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:43,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:43,804 INFO L85 PathProgramCache]: Analyzing trace with hash 871663653, now seen corresponding path program 2 times [2022-03-03 16:53:43,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:43,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815621887] [2022-03-03 16:53:43,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:43,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:43,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:43,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815621887] [2022-03-03 16:53:43,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815621887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:43,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:43,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:43,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099586732] [2022-03-03 16:53:43,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:43,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:43,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:43,919 INFO L87 Difference]: Start difference. First operand 9870 states and 27413 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:44,224 INFO L93 Difference]: Finished difference Result 10195 states and 28097 transitions. [2022-03-03 16:53:44,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:53:44,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:44,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:44,241 INFO L225 Difference]: With dead ends: 10195 [2022-03-03 16:53:44,241 INFO L226 Difference]: Without dead ends: 9768 [2022-03-03 16:53:44,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:53:44,242 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 304 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:44,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 2743 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:44,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2022-03-03 16:53:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9614. [2022-03-03 16:53:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9614 states, 9613 states have (on average 2.778425049412254) internal successors, (26709), 9613 states have internal predecessors, (26709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:44,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9614 states to 9614 states and 26709 transitions. [2022-03-03 16:53:44,457 INFO L78 Accepts]: Start accepts. Automaton has 9614 states and 26709 transitions. Word has length 227 [2022-03-03 16:53:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:44,458 INFO L470 AbstractCegarLoop]: Abstraction has 9614 states and 26709 transitions. [2022-03-03 16:53:44,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9614 states and 26709 transitions. [2022-03-03 16:53:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:44,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:44,471 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:44,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-03 16:53:44,471 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:44,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1010368307, now seen corresponding path program 3 times [2022-03-03 16:53:44,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:44,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641832177] [2022-03-03 16:53:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:44,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:44,602 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:44,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:44,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641832177] [2022-03-03 16:53:44,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641832177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:44,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:44,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:44,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890835807] [2022-03-03 16:53:44,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:44,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:44,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:44,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:44,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:44,603 INFO L87 Difference]: Start difference. First operand 9614 states and 26709 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:44,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:44,885 INFO L93 Difference]: Finished difference Result 9885 states and 27294 transitions. [2022-03-03 16:53:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:53:44,886 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:44,901 INFO L225 Difference]: With dead ends: 9885 [2022-03-03 16:53:44,901 INFO L226 Difference]: Without dead ends: 9667 [2022-03-03 16:53:44,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:53:44,902 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 234 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:44,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2523 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:44,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-03-03 16:53:45,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 9582. [2022-03-03 16:53:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 2.7785199874752116) internal successors, (26621), 9581 states have internal predecessors, (26621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 26621 transitions. [2022-03-03 16:53:45,032 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 26621 transitions. Word has length 227 [2022-03-03 16:53:45,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:45,032 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 26621 transitions. [2022-03-03 16:53:45,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:45,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 26621 transitions. [2022-03-03 16:53:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:45,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:45,045 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:45,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-03 16:53:45,046 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:45,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:45,046 INFO L85 PathProgramCache]: Analyzing trace with hash -366274121, now seen corresponding path program 4 times [2022-03-03 16:53:45,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:45,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140818362] [2022-03-03 16:53:45,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:45,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:45,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:45,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140818362] [2022-03-03 16:53:45,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140818362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:45,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:45,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:45,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888036996] [2022-03-03 16:53:45,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:45,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:45,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:45,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:45,160 INFO L87 Difference]: Start difference. First operand 9582 states and 26621 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:45,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:45,406 INFO L93 Difference]: Finished difference Result 9868 states and 27241 transitions. [2022-03-03 16:53:45,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:53:45,406 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:45,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:45,422 INFO L225 Difference]: With dead ends: 9868 [2022-03-03 16:53:45,422 INFO L226 Difference]: Without dead ends: 9635 [2022-03-03 16:53:45,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:53:45,422 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 222 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:45,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2693 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:45,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-03-03 16:53:45,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 9550. [2022-03-03 16:53:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9550 states, 9549 states have (on average 2.778615561838936) internal successors, (26533), 9549 states have internal predecessors, (26533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 26533 transitions. [2022-03-03 16:53:45,550 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 26533 transitions. Word has length 227 [2022-03-03 16:53:45,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:45,550 INFO L470 AbstractCegarLoop]: Abstraction has 9550 states and 26533 transitions. [2022-03-03 16:53:45,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:45,550 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 26533 transitions. [2022-03-03 16:53:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:45,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:45,563 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:45,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-03 16:53:45,563 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:45,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:45,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1574838221, now seen corresponding path program 5 times [2022-03-03 16:53:45,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:45,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597857138] [2022-03-03 16:53:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:45,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:45,669 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:45,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:45,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597857138] [2022-03-03 16:53:45,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597857138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:45,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:45,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:45,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100534825] [2022-03-03 16:53:45,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:45,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:45,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:45,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:45,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:45,671 INFO L87 Difference]: Start difference. First operand 9550 states and 26533 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:45,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:45,889 INFO L93 Difference]: Finished difference Result 9701 states and 26838 transitions. [2022-03-03 16:53:45,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:53:45,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:45,906 INFO L225 Difference]: With dead ends: 9701 [2022-03-03 16:53:45,906 INFO L226 Difference]: Without dead ends: 9453 [2022-03-03 16:53:45,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:53:45,906 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 258 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:45,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 2578 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9453 states. [2022-03-03 16:53:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9453 to 9368. [2022-03-03 16:53:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9368 states, 9367 states have (on average 2.7838155225792676) internal successors, (26076), 9367 states have internal predecessors, (26076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 26076 transitions. [2022-03-03 16:53:46,035 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 26076 transitions. Word has length 227 [2022-03-03 16:53:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:46,035 INFO L470 AbstractCegarLoop]: Abstraction has 9368 states and 26076 transitions. [2022-03-03 16:53:46,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 26076 transitions. [2022-03-03 16:53:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:46,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:46,050 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:46,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-03 16:53:46,050 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash 802199471, now seen corresponding path program 1 times [2022-03-03 16:53:46,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:46,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240550685] [2022-03-03 16:53:46,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:46,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:46,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:46,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240550685] [2022-03-03 16:53:46,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240550685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:46,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:46,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 16:53:46,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421840453] [2022-03-03 16:53:46,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:46,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 16:53:46,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:46,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 16:53:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-03 16:53:46,083 INFO L87 Difference]: Start difference. First operand 9368 states and 26076 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:46,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:46,162 INFO L93 Difference]: Finished difference Result 14651 states and 40779 transitions. [2022-03-03 16:53:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 16:53:46,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:46,188 INFO L225 Difference]: With dead ends: 14651 [2022-03-03 16:53:46,188 INFO L226 Difference]: Without dead ends: 14651 [2022-03-03 16:53:46,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:53:46,189 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 226 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:46,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1177 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:53:46,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14651 states. [2022-03-03 16:53:46,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14651 to 11546. [2022-03-03 16:53:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11546 states, 11545 states have (on average 2.7801645734084017) internal successors, (32097), 11545 states have internal predecessors, (32097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:46,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11546 states to 11546 states and 32097 transitions. [2022-03-03 16:53:46,437 INFO L78 Accepts]: Start accepts. Automaton has 11546 states and 32097 transitions. Word has length 227 [2022-03-03 16:53:46,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:46,438 INFO L470 AbstractCegarLoop]: Abstraction has 11546 states and 32097 transitions. [2022-03-03 16:53:46,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:46,438 INFO L276 IsEmpty]: Start isEmpty. Operand 11546 states and 32097 transitions. [2022-03-03 16:53:46,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:46,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:46,455 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:46,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-03 16:53:46,455 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:46,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:46,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1326718921, now seen corresponding path program 6 times [2022-03-03 16:53:46,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:46,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543258575] [2022-03-03 16:53:46,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:46,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:46,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:46,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543258575] [2022-03-03 16:53:46,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543258575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:46,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:46,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:46,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348652115] [2022-03-03 16:53:46,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:46,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:46,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:46,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:46,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:46,573 INFO L87 Difference]: Start difference. First operand 11546 states and 32097 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:46,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:46,873 INFO L93 Difference]: Finished difference Result 12578 states and 34703 transitions. [2022-03-03 16:53:46,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:46,873 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:46,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:46,896 INFO L225 Difference]: With dead ends: 12578 [2022-03-03 16:53:46,896 INFO L226 Difference]: Without dead ends: 12431 [2022-03-03 16:53:46,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:53:46,897 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 237 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:46,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2505 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:46,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12431 states. [2022-03-03 16:53:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12431 to 12005. [2022-03-03 16:53:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12005 states, 12004 states have (on average 2.7716594468510496) internal successors, (33271), 12004 states have internal predecessors, (33271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12005 states to 12005 states and 33271 transitions. [2022-03-03 16:53:47,086 INFO L78 Accepts]: Start accepts. Automaton has 12005 states and 33271 transitions. Word has length 227 [2022-03-03 16:53:47,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:47,086 INFO L470 AbstractCegarLoop]: Abstraction has 12005 states and 33271 transitions. [2022-03-03 16:53:47,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:47,086 INFO L276 IsEmpty]: Start isEmpty. Operand 12005 states and 33271 transitions. [2022-03-03 16:53:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:47,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:47,103 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:47,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-03 16:53:47,103 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:47,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1879527629, now seen corresponding path program 7 times [2022-03-03 16:53:47,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:47,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241139669] [2022-03-03 16:53:47,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:47,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:47,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241139669] [2022-03-03 16:53:47,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241139669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:47,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:47,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:47,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77198688] [2022-03-03 16:53:47,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:47,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:47,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:47,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:47,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:47,212 INFO L87 Difference]: Start difference. First operand 12005 states and 33271 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:47,524 INFO L93 Difference]: Finished difference Result 12602 states and 34719 transitions. [2022-03-03 16:53:47,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:53:47,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:47,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:47,545 INFO L225 Difference]: With dead ends: 12602 [2022-03-03 16:53:47,545 INFO L226 Difference]: Without dead ends: 12175 [2022-03-03 16:53:47,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:53:47,545 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 234 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:47,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2702 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:47,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12175 states. [2022-03-03 16:53:47,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12175 to 11749. [2022-03-03 16:53:47,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11749 states, 11748 states have (on average 2.772131426625809) internal successors, (32567), 11748 states have internal predecessors, (32567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 32567 transitions. [2022-03-03 16:53:47,705 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 32567 transitions. Word has length 227 [2022-03-03 16:53:47,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:47,705 INFO L470 AbstractCegarLoop]: Abstraction has 11749 states and 32567 transitions. [2022-03-03 16:53:47,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 32567 transitions. [2022-03-03 16:53:47,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:47,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:47,721 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:47,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-03 16:53:47,721 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:47,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2504331, now seen corresponding path program 8 times [2022-03-03 16:53:47,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:47,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466402880] [2022-03-03 16:53:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:47,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:47,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466402880] [2022-03-03 16:53:47,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466402880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:47,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:47,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:47,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010952436] [2022-03-03 16:53:47,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:47,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:47,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:47,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:47,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:47,816 INFO L87 Difference]: Start difference. First operand 11749 states and 32567 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:48,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:48,038 INFO L93 Difference]: Finished difference Result 12292 states and 33916 transitions. [2022-03-03 16:53:48,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:53:48,038 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:48,057 INFO L225 Difference]: With dead ends: 12292 [2022-03-03 16:53:48,057 INFO L226 Difference]: Without dead ends: 12074 [2022-03-03 16:53:48,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:53:48,058 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 148 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:48,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 2667 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:48,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12074 states. [2022-03-03 16:53:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12074 to 11717. [2022-03-03 16:53:48,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11717 states, 11716 states have (on average 2.7721918743598497) internal successors, (32479), 11716 states have internal predecessors, (32479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11717 states to 11717 states and 32479 transitions. [2022-03-03 16:53:48,219 INFO L78 Accepts]: Start accepts. Automaton has 11717 states and 32479 transitions. Word has length 227 [2022-03-03 16:53:48,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:48,219 INFO L470 AbstractCegarLoop]: Abstraction has 11717 states and 32479 transitions. [2022-03-03 16:53:48,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:48,219 INFO L276 IsEmpty]: Start isEmpty. Operand 11717 states and 32479 transitions. [2022-03-03 16:53:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:48,234 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:48,234 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:48,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-03 16:53:48,234 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:48,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash -818213115, now seen corresponding path program 9 times [2022-03-03 16:53:48,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:48,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728032108] [2022-03-03 16:53:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:48,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:48,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:48,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728032108] [2022-03-03 16:53:48,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728032108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:48,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:48,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:48,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172246501] [2022-03-03 16:53:48,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:48,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:48,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:48,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:48,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:48,327 INFO L87 Difference]: Start difference. First operand 11717 states and 32479 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:48,518 INFO L93 Difference]: Finished difference Result 12140 states and 33548 transitions. [2022-03-03 16:53:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:53:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:48,537 INFO L225 Difference]: With dead ends: 12140 [2022-03-03 16:53:48,537 INFO L226 Difference]: Without dead ends: 11907 [2022-03-03 16:53:48,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:48,538 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 138 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:48,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 2620 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:48,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11907 states. [2022-03-03 16:53:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11907 to 11550. [2022-03-03 16:53:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11550 states, 11549 states have (on average 2.779807775564984) internal successors, (32104), 11549 states have internal predecessors, (32104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:48,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 32104 transitions. [2022-03-03 16:53:48,743 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 32104 transitions. Word has length 227 [2022-03-03 16:53:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:48,743 INFO L470 AbstractCegarLoop]: Abstraction has 11550 states and 32104 transitions. [2022-03-03 16:53:48,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 32104 transitions. [2022-03-03 16:53:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:48,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:48,759 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:48,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-03 16:53:48,759 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:48,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1387001287, now seen corresponding path program 10 times [2022-03-03 16:53:48,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:48,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426881729] [2022-03-03 16:53:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:48,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:48,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:48,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426881729] [2022-03-03 16:53:48,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426881729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:48,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:48,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:48,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421262201] [2022-03-03 16:53:48,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:48,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:48,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:48,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:48,874 INFO L87 Difference]: Start difference. First operand 11550 states and 32104 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:49,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:49,130 INFO L93 Difference]: Finished difference Result 12379 states and 34183 transitions. [2022-03-03 16:53:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:53:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:49,150 INFO L225 Difference]: With dead ends: 12379 [2022-03-03 16:53:49,150 INFO L226 Difference]: Without dead ends: 12232 [2022-03-03 16:53:49,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:53:49,150 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 191 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:49,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 2432 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:49,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2022-03-03 16:53:49,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 11962. [2022-03-03 16:53:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11962 states, 11961 states have (on average 2.7719254242956275) internal successors, (33155), 11961 states have internal predecessors, (33155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:49,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 33155 transitions. [2022-03-03 16:53:49,321 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 33155 transitions. Word has length 227 [2022-03-03 16:53:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:49,321 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 33155 transitions. [2022-03-03 16:53:49,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:49,321 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 33155 transitions. [2022-03-03 16:53:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:49,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:49,338 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:49,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-03 16:53:49,338 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:49,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1819245263, now seen corresponding path program 11 times [2022-03-03 16:53:49,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:49,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27917098] [2022-03-03 16:53:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:49,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:49,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:49,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27917098] [2022-03-03 16:53:49,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27917098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:49,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:49,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:49,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591975247] [2022-03-03 16:53:49,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:49,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:49,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:49,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:49,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:49,450 INFO L87 Difference]: Start difference. First operand 11962 states and 33155 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:49,742 INFO L93 Difference]: Finished difference Result 12403 states and 34199 transitions. [2022-03-03 16:53:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:53:49,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:49,763 INFO L225 Difference]: With dead ends: 12403 [2022-03-03 16:53:49,763 INFO L226 Difference]: Without dead ends: 11976 [2022-03-03 16:53:49,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:53:49,764 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 182 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:49,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2626 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:49,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11976 states. [2022-03-03 16:53:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11976 to 11706. [2022-03-03 16:53:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11706 states, 11705 states have (on average 2.772404955147373) internal successors, (32451), 11705 states have internal predecessors, (32451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:49,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11706 states to 11706 states and 32451 transitions. [2022-03-03 16:53:49,937 INFO L78 Accepts]: Start accepts. Automaton has 11706 states and 32451 transitions. Word has length 227 [2022-03-03 16:53:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:49,937 INFO L470 AbstractCegarLoop]: Abstraction has 11706 states and 32451 transitions. [2022-03-03 16:53:49,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 11706 states and 32451 transitions. [2022-03-03 16:53:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:49,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:49,954 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:49,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-03 16:53:49,954 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:49,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash -62786697, now seen corresponding path program 12 times [2022-03-03 16:53:49,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:49,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934804041] [2022-03-03 16:53:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:49,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:50,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:50,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934804041] [2022-03-03 16:53:50,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934804041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:50,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:50,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:50,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462911868] [2022-03-03 16:53:50,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:50,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:50,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:50,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:50,065 INFO L87 Difference]: Start difference. First operand 11706 states and 32451 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:50,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:50,274 INFO L93 Difference]: Finished difference Result 11973 states and 33116 transitions. [2022-03-03 16:53:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 16:53:50,274 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:50,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:50,294 INFO L225 Difference]: With dead ends: 11973 [2022-03-03 16:53:50,295 INFO L226 Difference]: Without dead ends: 11755 [2022-03-03 16:53:50,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-03-03 16:53:50,295 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 119 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:50,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 2345 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:50,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2022-03-03 16:53:50,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 11554. [2022-03-03 16:53:50,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11554 states, 11553 states have (on average 2.779451224790098) internal successors, (32111), 11553 states have internal predecessors, (32111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11554 states to 11554 states and 32111 transitions. [2022-03-03 16:53:50,466 INFO L78 Accepts]: Start accepts. Automaton has 11554 states and 32111 transitions. Word has length 227 [2022-03-03 16:53:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:50,467 INFO L470 AbstractCegarLoop]: Abstraction has 11554 states and 32111 transitions. [2022-03-03 16:53:50,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:50,467 INFO L276 IsEmpty]: Start isEmpty. Operand 11554 states and 32111 transitions. [2022-03-03 16:53:50,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:50,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:50,482 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:50,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-03 16:53:50,482 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:50,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:50,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1786980807, now seen corresponding path program 13 times [2022-03-03 16:53:50,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:50,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229145132] [2022-03-03 16:53:50,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:50,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:50,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:50,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229145132] [2022-03-03 16:53:50,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229145132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:50,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:50,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:50,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345926655] [2022-03-03 16:53:50,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:50,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:50,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:50,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:50,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:50,592 INFO L87 Difference]: Start difference. First operand 11554 states and 32111 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:50,849 INFO L93 Difference]: Finished difference Result 12325 states and 33970 transitions. [2022-03-03 16:53:50,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:53:50,850 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:50,871 INFO L225 Difference]: With dead ends: 12325 [2022-03-03 16:53:50,871 INFO L226 Difference]: Without dead ends: 12178 [2022-03-03 16:53:50,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:53:50,871 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 186 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:50,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 2332 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2022-03-03 16:53:51,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 11947. [2022-03-03 16:53:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11947 states, 11946 states have (on average 2.772141302528043) internal successors, (33116), 11946 states have internal predecessors, (33116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11947 states to 11947 states and 33116 transitions. [2022-03-03 16:53:51,139 INFO L78 Accepts]: Start accepts. Automaton has 11947 states and 33116 transitions. Word has length 227 [2022-03-03 16:53:51,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:51,140 INFO L470 AbstractCegarLoop]: Abstraction has 11947 states and 33116 transitions. [2022-03-03 16:53:51,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 11947 states and 33116 transitions. [2022-03-03 16:53:51,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:51,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:51,159 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:51,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-03 16:53:51,159 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:51,160 INFO L85 PathProgramCache]: Analyzing trace with hash 698260061, now seen corresponding path program 14 times [2022-03-03 16:53:51,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:51,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213527534] [2022-03-03 16:53:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:51,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:51,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:51,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213527534] [2022-03-03 16:53:51,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213527534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:51,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:51,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:51,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409906175] [2022-03-03 16:53:51,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:51,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:51,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:51,280 INFO L87 Difference]: Start difference. First operand 11947 states and 33116 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:51,517 INFO L93 Difference]: Finished difference Result 12175 states and 33607 transitions. [2022-03-03 16:53:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:53:51,517 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:51,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:51,539 INFO L225 Difference]: With dead ends: 12175 [2022-03-03 16:53:51,539 INFO L226 Difference]: Without dead ends: 11748 [2022-03-03 16:53:51,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:53:51,539 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 171 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:51,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 1914 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:51,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11748 states. [2022-03-03 16:53:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11748 to 11586. [2022-03-03 16:53:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11586 states, 11585 states have (on average 2.776607682347864) internal successors, (32167), 11585 states have internal predecessors, (32167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:51,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 32167 transitions. [2022-03-03 16:53:51,703 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 32167 transitions. Word has length 227 [2022-03-03 16:53:51,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:51,703 INFO L470 AbstractCegarLoop]: Abstraction has 11586 states and 32167 transitions. [2022-03-03 16:53:51,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:51,703 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 32167 transitions. [2022-03-03 16:53:51,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:51,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:51,719 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:51,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-03 16:53:51,719 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:51,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash 168555327, now seen corresponding path program 15 times [2022-03-03 16:53:51,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:51,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619398101] [2022-03-03 16:53:51,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:51,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:51,812 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:51,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:51,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619398101] [2022-03-03 16:53:51,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619398101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:51,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:51,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:51,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339945523] [2022-03-03 16:53:51,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:51,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:51,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:51,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:51,814 INFO L87 Difference]: Start difference. First operand 11586 states and 32167 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:51,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:51,972 INFO L93 Difference]: Finished difference Result 11745 states and 32524 transitions. [2022-03-03 16:53:51,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:53:51,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:51,993 INFO L225 Difference]: With dead ends: 11745 [2022-03-03 16:53:51,993 INFO L226 Difference]: Without dead ends: 11542 [2022-03-03 16:53:51,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:51,993 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 98 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:51,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 2220 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11542 states. [2022-03-03 16:53:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11542 to 11542. [2022-03-03 16:53:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11542 states, 11541 states have (on average 2.7798284377436966) internal successors, (32082), 11541 states have internal predecessors, (32082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11542 states to 11542 states and 32082 transitions. [2022-03-03 16:53:52,163 INFO L78 Accepts]: Start accepts. Automaton has 11542 states and 32082 transitions. Word has length 227 [2022-03-03 16:53:52,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:52,163 INFO L470 AbstractCegarLoop]: Abstraction has 11542 states and 32082 transitions. [2022-03-03 16:53:52,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:52,163 INFO L276 IsEmpty]: Start isEmpty. Operand 11542 states and 32082 transitions. [2022-03-03 16:53:52,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:52,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:52,178 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:52,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-03 16:53:52,179 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:52,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:52,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2010123885, now seen corresponding path program 16 times [2022-03-03 16:53:52,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:52,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384435384] [2022-03-03 16:53:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:52,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:52,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:52,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384435384] [2022-03-03 16:53:52,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384435384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:52,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:52,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:52,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010742458] [2022-03-03 16:53:52,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:52,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:52,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:52,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:52,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:52,283 INFO L87 Difference]: Start difference. First operand 11542 states and 32082 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:52,510 INFO L93 Difference]: Finished difference Result 13860 states and 38299 transitions. [2022-03-03 16:53:52,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:53:52,511 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:52,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:52,538 INFO L225 Difference]: With dead ends: 13860 [2022-03-03 16:53:52,538 INFO L226 Difference]: Without dead ends: 13713 [2022-03-03 16:53:52,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:53:52,538 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 257 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:52,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 2286 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:52,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13713 states. [2022-03-03 16:53:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13713 to 11950. [2022-03-03 16:53:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11949 states have (on average 2.7719474433006948) internal successors, (33122), 11949 states have internal predecessors, (33122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:52,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 33122 transitions. [2022-03-03 16:53:52,704 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 33122 transitions. Word has length 227 [2022-03-03 16:53:52,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:52,704 INFO L470 AbstractCegarLoop]: Abstraction has 11950 states and 33122 transitions. [2022-03-03 16:53:52,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:52,705 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 33122 transitions. [2022-03-03 16:53:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:52,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:52,721 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:52,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-03 16:53:52,721 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:52,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1196122665, now seen corresponding path program 17 times [2022-03-03 16:53:52,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:52,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135696054] [2022-03-03 16:53:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:52,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:52,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:52,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135696054] [2022-03-03 16:53:52,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135696054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:52,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:52,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:52,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004247937] [2022-03-03 16:53:52,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:52,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:52,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:52,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:52,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:52,836 INFO L87 Difference]: Start difference. First operand 11950 states and 33122 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:53,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:53,127 INFO L93 Difference]: Finished difference Result 13884 states and 38315 transitions. [2022-03-03 16:53:53,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:53:53,132 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:53,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:53,157 INFO L225 Difference]: With dead ends: 13884 [2022-03-03 16:53:53,158 INFO L226 Difference]: Without dead ends: 13457 [2022-03-03 16:53:53,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:53:53,158 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 253 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:53,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2666 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2022-03-03 16:53:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 11694. [2022-03-03 16:53:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11694 states, 11693 states have (on average 2.7724279483451637) internal successors, (32418), 11693 states have internal predecessors, (32418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11694 states to 11694 states and 32418 transitions. [2022-03-03 16:53:53,405 INFO L78 Accepts]: Start accepts. Automaton has 11694 states and 32418 transitions. Word has length 227 [2022-03-03 16:53:53,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:53,405 INFO L470 AbstractCegarLoop]: Abstraction has 11694 states and 32418 transitions. [2022-03-03 16:53:53,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 11694 states and 32418 transitions. [2022-03-03 16:53:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:53,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:53,419 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:53,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-03 16:53:53,419 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:53,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:53,419 INFO L85 PathProgramCache]: Analyzing trace with hash -685909295, now seen corresponding path program 18 times [2022-03-03 16:53:53,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:53,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791984568] [2022-03-03 16:53:53,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:53,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:53,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:53,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791984568] [2022-03-03 16:53:53,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791984568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:53,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:53,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:53,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644949681] [2022-03-03 16:53:53,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:53,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:53,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:53,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:53,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:53,535 INFO L87 Difference]: Start difference. First operand 11694 states and 32418 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:53,760 INFO L93 Difference]: Finished difference Result 13574 states and 37512 transitions. [2022-03-03 16:53:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:53:53,760 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:53,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:53,783 INFO L225 Difference]: With dead ends: 13574 [2022-03-03 16:53:53,783 INFO L226 Difference]: Without dead ends: 13356 [2022-03-03 16:53:53,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:53:53,784 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 181 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:53,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 2433 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:53,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2022-03-03 16:53:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 11662. [2022-03-03 16:53:53,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11662 states, 11661 states have (on average 2.772489494897522) internal successors, (32330), 11661 states have internal predecessors, (32330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:53,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11662 states to 11662 states and 32330 transitions. [2022-03-03 16:53:53,955 INFO L78 Accepts]: Start accepts. Automaton has 11662 states and 32330 transitions. Word has length 227 [2022-03-03 16:53:53,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:53,955 INFO L470 AbstractCegarLoop]: Abstraction has 11662 states and 32330 transitions. [2022-03-03 16:53:53,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:53,955 INFO L276 IsEmpty]: Start isEmpty. Operand 11662 states and 32330 transitions. [2022-03-03 16:53:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:53,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:53,970 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:53,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-03 16:53:53,970 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:53,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:53,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1501618079, now seen corresponding path program 19 times [2022-03-03 16:53:53,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:53,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842180393] [2022-03-03 16:53:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:53,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:54,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:54,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842180393] [2022-03-03 16:53:54,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842180393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:54,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:54,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:54,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205705678] [2022-03-03 16:53:54,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:54,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:54,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:54,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:54,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:54,060 INFO L87 Difference]: Start difference. First operand 11662 states and 32330 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:54,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:54,237 INFO L93 Difference]: Finished difference Result 13422 states and 37144 transitions. [2022-03-03 16:53:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:53:54,237 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:54,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:54,259 INFO L225 Difference]: With dead ends: 13422 [2022-03-03 16:53:54,259 INFO L226 Difference]: Without dead ends: 13189 [2022-03-03 16:53:54,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:54,259 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 174 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:54,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2013 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13189 states. [2022-03-03 16:53:54,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13189 to 11495. [2022-03-03 16:53:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11495 states, 11494 states have (on average 2.7801461632155906) internal successors, (31955), 11494 states have internal predecessors, (31955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:54,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11495 states to 11495 states and 31955 transitions. [2022-03-03 16:53:54,420 INFO L78 Accepts]: Start accepts. Automaton has 11495 states and 31955 transitions. Word has length 227 [2022-03-03 16:53:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:54,420 INFO L470 AbstractCegarLoop]: Abstraction has 11495 states and 31955 transitions. [2022-03-03 16:53:54,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:54,421 INFO L276 IsEmpty]: Start isEmpty. Operand 11495 states and 31955 transitions. [2022-03-03 16:53:54,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:54,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:54,436 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:54,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-03 16:53:54,436 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:54,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:54,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2070406251, now seen corresponding path program 20 times [2022-03-03 16:53:54,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:54,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908956506] [2022-03-03 16:53:54,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:54,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:54,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:54,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908956506] [2022-03-03 16:53:54,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908956506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:54,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:54,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:54,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091644894] [2022-03-03 16:53:54,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:54,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:54,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:54,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:54,536 INFO L87 Difference]: Start difference. First operand 11495 states and 31955 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:54,765 INFO L93 Difference]: Finished difference Result 13970 states and 38585 transitions. [2022-03-03 16:53:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:53:54,765 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:54,789 INFO L225 Difference]: With dead ends: 13970 [2022-03-03 16:53:54,789 INFO L226 Difference]: Without dead ends: 13823 [2022-03-03 16:53:54,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:53:54,789 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 236 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:54,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2424 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:54,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13823 states. [2022-03-03 16:53:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13823 to 11907. [2022-03-03 16:53:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11907 states, 11906 states have (on average 2.772215689568285) internal successors, (33006), 11906 states have internal predecessors, (33006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11907 states to 11907 states and 33006 transitions. [2022-03-03 16:53:54,969 INFO L78 Accepts]: Start accepts. Automaton has 11907 states and 33006 transitions. Word has length 227 [2022-03-03 16:53:54,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:54,970 INFO L470 AbstractCegarLoop]: Abstraction has 11907 states and 33006 transitions. [2022-03-03 16:53:54,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand 11907 states and 33006 transitions. [2022-03-03 16:53:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:54,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:54,988 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:54,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-03 16:53:54,988 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1135840299, now seen corresponding path program 21 times [2022-03-03 16:53:54,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:54,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934778552] [2022-03-03 16:53:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:54,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:55,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:55,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934778552] [2022-03-03 16:53:55,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934778552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:55,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:55,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:55,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248317487] [2022-03-03 16:53:55,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:55,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:55,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:55,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:55,092 INFO L87 Difference]: Start difference. First operand 11907 states and 33006 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:55,371 INFO L93 Difference]: Finished difference Result 13994 states and 38601 transitions. [2022-03-03 16:53:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:53:55,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:55,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:55,395 INFO L225 Difference]: With dead ends: 13994 [2022-03-03 16:53:55,395 INFO L226 Difference]: Without dead ends: 13567 [2022-03-03 16:53:55,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:53:55,396 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 246 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:55,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2410 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:55,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2022-03-03 16:53:55,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 11651. [2022-03-03 16:53:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11651 states, 11650 states have (on average 2.7727038626609444) internal successors, (32302), 11650 states have internal predecessors, (32302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 32302 transitions. [2022-03-03 16:53:55,642 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 32302 transitions. Word has length 227 [2022-03-03 16:53:55,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:55,642 INFO L470 AbstractCegarLoop]: Abstraction has 11651 states and 32302 transitions. [2022-03-03 16:53:55,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 32302 transitions. [2022-03-03 16:53:55,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:55,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:55,658 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:55,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-03 16:53:55,658 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:55,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:55,658 INFO L85 PathProgramCache]: Analyzing trace with hash -746191661, now seen corresponding path program 22 times [2022-03-03 16:53:55,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:55,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147187849] [2022-03-03 16:53:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:55,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:55,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:55,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147187849] [2022-03-03 16:53:55,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147187849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:55,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:55,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:55,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384976757] [2022-03-03 16:53:55,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:55,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:55,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:55,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:55,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:55,778 INFO L87 Difference]: Start difference. First operand 11651 states and 32302 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:56,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:56,011 INFO L93 Difference]: Finished difference Result 13564 states and 37518 transitions. [2022-03-03 16:53:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:53:56,011 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:56,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:56,034 INFO L225 Difference]: With dead ends: 13564 [2022-03-03 16:53:56,035 INFO L226 Difference]: Without dead ends: 13346 [2022-03-03 16:53:56,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:53:56,035 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 161 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:56,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2532 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:56,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13346 states. [2022-03-03 16:53:56,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13346 to 11499. [2022-03-03 16:53:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 11498 states have (on average 2.779787789180727) internal successors, (31962), 11498 states have internal predecessors, (31962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 31962 transitions. [2022-03-03 16:53:56,208 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 31962 transitions. Word has length 227 [2022-03-03 16:53:56,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:56,208 INFO L470 AbstractCegarLoop]: Abstraction has 11499 states and 31962 transitions. [2022-03-03 16:53:56,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 31962 transitions. [2022-03-03 16:53:56,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:56,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:56,224 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:56,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-03 16:53:56,224 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:56,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:56,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1103575843, now seen corresponding path program 23 times [2022-03-03 16:53:56,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:56,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335860560] [2022-03-03 16:53:56,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:56,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:56,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:56,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335860560] [2022-03-03 16:53:56,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335860560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:56,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:56,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:56,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420589610] [2022-03-03 16:53:56,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:56,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:56,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:56,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:56,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:56,318 INFO L87 Difference]: Start difference. First operand 11499 states and 31962 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:56,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:56,566 INFO L93 Difference]: Finished difference Result 13964 states and 38504 transitions. [2022-03-03 16:53:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:53:56,567 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:56,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:56,594 INFO L225 Difference]: With dead ends: 13964 [2022-03-03 16:53:56,595 INFO L226 Difference]: Without dead ends: 13817 [2022-03-03 16:53:56,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:53:56,595 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 224 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:56,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2654 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:56,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13817 states. [2022-03-03 16:53:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13817 to 11892. [2022-03-03 16:53:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11892 states, 11891 states have (on average 2.7724329324699353) internal successors, (32967), 11891 states have internal predecessors, (32967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11892 states to 11892 states and 32967 transitions. [2022-03-03 16:53:56,778 INFO L78 Accepts]: Start accepts. Automaton has 11892 states and 32967 transitions. Word has length 227 [2022-03-03 16:53:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:56,779 INFO L470 AbstractCegarLoop]: Abstraction has 11892 states and 32967 transitions. [2022-03-03 16:53:56,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 11892 states and 32967 transitions. [2022-03-03 16:53:56,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:56,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:56,794 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:56,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-03 16:53:56,794 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:56,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:56,795 INFO L85 PathProgramCache]: Analyzing trace with hash 14855097, now seen corresponding path program 24 times [2022-03-03 16:53:56,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:56,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799765064] [2022-03-03 16:53:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:56,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:56,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:56,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799765064] [2022-03-03 16:53:56,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799765064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:56,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:56,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:56,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995170840] [2022-03-03 16:53:56,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:56,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:56,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:56,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:56,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:56,893 INFO L87 Difference]: Start difference. First operand 11892 states and 32967 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:57,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:57,203 INFO L93 Difference]: Finished difference Result 13814 states and 38141 transitions. [2022-03-03 16:53:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:53:57,203 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:57,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:57,228 INFO L225 Difference]: With dead ends: 13814 [2022-03-03 16:53:57,228 INFO L226 Difference]: Without dead ends: 13387 [2022-03-03 16:53:57,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:53:57,229 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 206 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:57,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2647 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:57,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13387 states. [2022-03-03 16:53:57,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13387 to 11531. [2022-03-03 16:53:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11531 states, 11530 states have (on average 2.77692974848222) internal successors, (32018), 11530 states have internal predecessors, (32018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:57,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11531 states to 11531 states and 32018 transitions. [2022-03-03 16:53:57,410 INFO L78 Accepts]: Start accepts. Automaton has 11531 states and 32018 transitions. Word has length 227 [2022-03-03 16:53:57,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:57,411 INFO L470 AbstractCegarLoop]: Abstraction has 11531 states and 32018 transitions. [2022-03-03 16:53:57,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:57,411 INFO L276 IsEmpty]: Start isEmpty. Operand 11531 states and 32018 transitions. [2022-03-03 16:53:57,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:57,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:57,426 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:57,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-03 16:53:57,426 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:57,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:57,426 INFO L85 PathProgramCache]: Analyzing trace with hash -514849637, now seen corresponding path program 25 times [2022-03-03 16:53:57,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:57,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269524684] [2022-03-03 16:53:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:57,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:57,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:57,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269524684] [2022-03-03 16:53:57,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269524684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:57,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:57,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:57,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397040349] [2022-03-03 16:53:57,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:57,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:57,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:57,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:57,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:57,530 INFO L87 Difference]: Start difference. First operand 11531 states and 32018 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:57,744 INFO L93 Difference]: Finished difference Result 13384 states and 37058 transitions. [2022-03-03 16:53:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:53:57,745 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:57,766 INFO L225 Difference]: With dead ends: 13384 [2022-03-03 16:53:57,766 INFO L226 Difference]: Without dead ends: 13185 [2022-03-03 16:53:57,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:53:57,766 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 127 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:57,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 2530 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2022-03-03 16:53:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 11491. [2022-03-03 16:53:57,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11491 states, 11490 states have (on average 2.7801566579634467) internal successors, (31944), 11490 states have internal predecessors, (31944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11491 states to 11491 states and 31944 transitions. [2022-03-03 16:53:57,984 INFO L78 Accepts]: Start accepts. Automaton has 11491 states and 31944 transitions. Word has length 227 [2022-03-03 16:53:57,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:57,984 INFO L470 AbstractCegarLoop]: Abstraction has 11491 states and 31944 transitions. [2022-03-03 16:53:57,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 11491 states and 31944 transitions. [2022-03-03 16:53:58,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:58,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:58,001 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:58,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-03 16:53:58,001 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:58,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:58,002 INFO L85 PathProgramCache]: Analyzing trace with hash 805446415, now seen corresponding path program 26 times [2022-03-03 16:53:58,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:58,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838054919] [2022-03-03 16:53:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:58,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:58,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:58,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838054919] [2022-03-03 16:53:58,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838054919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:58,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:58,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:58,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027105388] [2022-03-03 16:53:58,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:58,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:58,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:58,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:58,103 INFO L87 Difference]: Start difference. First operand 11491 states and 31944 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:58,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:58,344 INFO L93 Difference]: Finished difference Result 13762 states and 38038 transitions. [2022-03-03 16:53:58,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:53:58,344 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:58,367 INFO L225 Difference]: With dead ends: 13762 [2022-03-03 16:53:58,367 INFO L226 Difference]: Without dead ends: 13615 [2022-03-03 16:53:58,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:53:58,368 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 270 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:58,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2311 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-03-03 16:53:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 12075. [2022-03-03 16:53:58,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12075 states, 12074 states have (on average 2.773231737618022) internal successors, (33484), 12074 states have internal predecessors, (33484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:58,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 33484 transitions. [2022-03-03 16:53:58,551 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 33484 transitions. Word has length 227 [2022-03-03 16:53:58,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:58,551 INFO L470 AbstractCegarLoop]: Abstraction has 12075 states and 33484 transitions. [2022-03-03 16:53:58,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 33484 transitions. [2022-03-03 16:53:58,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:58,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:58,567 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:58,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-03 16:53:58,567 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:58,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:58,568 INFO L85 PathProgramCache]: Analyzing trace with hash -283274331, now seen corresponding path program 27 times [2022-03-03 16:53:58,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:58,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33921006] [2022-03-03 16:53:58,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:58,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:58,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:58,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33921006] [2022-03-03 16:53:58,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33921006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:58,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:58,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:58,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104177570] [2022-03-03 16:53:58,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:58,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:58,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:58,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:58,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:58,669 INFO L87 Difference]: Start difference. First operand 12075 states and 33484 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:58,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:58,973 INFO L93 Difference]: Finished difference Result 13786 states and 38054 transitions. [2022-03-03 16:53:58,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:53:58,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:58,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:58,997 INFO L225 Difference]: With dead ends: 13786 [2022-03-03 16:53:58,997 INFO L226 Difference]: Without dead ends: 13359 [2022-03-03 16:53:58,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:53:58,998 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 269 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:58,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2547 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13359 states. [2022-03-03 16:53:59,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13359 to 11819. [2022-03-03 16:53:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11819 states, 11818 states have (on average 2.773734980538162) internal successors, (32780), 11818 states have internal predecessors, (32780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11819 states to 11819 states and 32780 transitions. [2022-03-03 16:53:59,166 INFO L78 Accepts]: Start accepts. Automaton has 11819 states and 32780 transitions. Word has length 227 [2022-03-03 16:53:59,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:59,167 INFO L470 AbstractCegarLoop]: Abstraction has 11819 states and 32780 transitions. [2022-03-03 16:53:59,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 11819 states and 32780 transitions. [2022-03-03 16:53:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:59,182 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:59,182 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:59,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-03 16:53:59,182 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2129661005, now seen corresponding path program 28 times [2022-03-03 16:53:59,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:59,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212095793] [2022-03-03 16:53:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:59,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:59,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212095793] [2022-03-03 16:53:59,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212095793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:59,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:59,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:59,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548980765] [2022-03-03 16:53:59,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:59,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:59,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:59,280 INFO L87 Difference]: Start difference. First operand 11819 states and 32780 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:53:59,504 INFO L93 Difference]: Finished difference Result 13356 states and 36971 transitions. [2022-03-03 16:53:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:53:59,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:53:59,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:53:59,528 INFO L225 Difference]: With dead ends: 13356 [2022-03-03 16:53:59,528 INFO L226 Difference]: Without dead ends: 13138 [2022-03-03 16:53:59,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:53:59,528 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 195 mSDsluCounter, 2468 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:53:59,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 2711 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:53:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13138 states. [2022-03-03 16:53:59,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13138 to 11667. [2022-03-03 16:53:59,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11667 states, 11666 states have (on average 2.7807303274472828) internal successors, (32440), 11666 states have internal predecessors, (32440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11667 states to 11667 states and 32440 transitions. [2022-03-03 16:53:59,710 INFO L78 Accepts]: Start accepts. Automaton has 11667 states and 32440 transitions. Word has length 227 [2022-03-03 16:53:59,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:53:59,710 INFO L470 AbstractCegarLoop]: Abstraction has 11667 states and 32440 transitions. [2022-03-03 16:53:59,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:53:59,711 INFO L276 IsEmpty]: Start isEmpty. Operand 11667 states and 32440 transitions. [2022-03-03 16:53:59,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:53:59,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:53:59,726 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:53:59,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-03 16:53:59,726 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:53:59,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:53:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash -315538787, now seen corresponding path program 29 times [2022-03-03 16:53:59,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:53:59,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271731671] [2022-03-03 16:53:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:53:59,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:53:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:53:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:53:59,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:53:59,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271731671] [2022-03-03 16:53:59,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271731671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:53:59,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:53:59,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:53:59,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970017075] [2022-03-03 16:53:59,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:53:59,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:53:59,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:53:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:53:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:53:59,828 INFO L87 Difference]: Start difference. First operand 11667 states and 32440 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:00,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:00,084 INFO L93 Difference]: Finished difference Result 13909 states and 38359 transitions. [2022-03-03 16:54:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:54:00,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:00,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:00,109 INFO L225 Difference]: With dead ends: 13909 [2022-03-03 16:54:00,109 INFO L226 Difference]: Without dead ends: 13762 [2022-03-03 16:54:00,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:54:00,110 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 309 mSDsluCounter, 2515 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:00,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 2773 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:00,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13762 states. [2022-03-03 16:54:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13762 to 12060. [2022-03-03 16:54:00,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12060 states, 12059 states have (on average 2.7734472178455927) internal successors, (33445), 12059 states have internal predecessors, (33445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12060 states to 12060 states and 33445 transitions. [2022-03-03 16:54:00,407 INFO L78 Accepts]: Start accepts. Automaton has 12060 states and 33445 transitions. Word has length 227 [2022-03-03 16:54:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:00,407 INFO L470 AbstractCegarLoop]: Abstraction has 12060 states and 33445 transitions. [2022-03-03 16:54:00,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:00,408 INFO L276 IsEmpty]: Start isEmpty. Operand 12060 states and 33445 transitions. [2022-03-03 16:54:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:00,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:00,423 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:00,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-03 16:54:00,423 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:00,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1404259533, now seen corresponding path program 30 times [2022-03-03 16:54:00,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:00,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055409228] [2022-03-03 16:54:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:00,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:00,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:00,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055409228] [2022-03-03 16:54:00,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055409228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:00,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:00,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:00,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455331218] [2022-03-03 16:54:00,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:00,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:00,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:00,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:00,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:00,518 INFO L87 Difference]: Start difference. First operand 12060 states and 33445 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:00,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:00,798 INFO L93 Difference]: Finished difference Result 13759 states and 37996 transitions. [2022-03-03 16:54:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:54:00,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:00,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:00,822 INFO L225 Difference]: With dead ends: 13759 [2022-03-03 16:54:00,823 INFO L226 Difference]: Without dead ends: 13332 [2022-03-03 16:54:00,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:54:00,823 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 301 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:00,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2528 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:00,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2022-03-03 16:54:00,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 11699. [2022-03-03 16:54:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11699 states, 11698 states have (on average 2.7779107539750383) internal successors, (32496), 11698 states have internal predecessors, (32496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:00,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32496 transitions. [2022-03-03 16:54:00,997 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32496 transitions. Word has length 227 [2022-03-03 16:54:00,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:00,997 INFO L470 AbstractCegarLoop]: Abstraction has 11699 states and 32496 transitions. [2022-03-03 16:54:00,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32496 transitions. [2022-03-03 16:54:01,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:01,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:01,013 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:01,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-03 16:54:01,014 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:01,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:01,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1933964267, now seen corresponding path program 31 times [2022-03-03 16:54:01,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:01,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949844557] [2022-03-03 16:54:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:01,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:01,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:01,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949844557] [2022-03-03 16:54:01,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949844557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:01,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:01,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:01,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57221770] [2022-03-03 16:54:01,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:01,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:01,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:01,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:01,152 INFO L87 Difference]: Start difference. First operand 11699 states and 32496 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:01,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:01,368 INFO L93 Difference]: Finished difference Result 13329 states and 36913 transitions. [2022-03-03 16:54:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:01,369 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:01,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:01,393 INFO L225 Difference]: With dead ends: 13329 [2022-03-03 16:54:01,393 INFO L226 Difference]: Without dead ends: 13134 [2022-03-03 16:54:01,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:54:01,394 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 177 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:01,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 2484 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2022-03-03 16:54:01,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 11663. [2022-03-03 16:54:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11663 states, 11662 states have (on average 2.7807408677756817) internal successors, (32429), 11662 states have internal predecessors, (32429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:01,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 32429 transitions. [2022-03-03 16:54:01,569 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 32429 transitions. Word has length 227 [2022-03-03 16:54:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:01,569 INFO L470 AbstractCegarLoop]: Abstraction has 11663 states and 32429 transitions. [2022-03-03 16:54:01,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:01,570 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 32429 transitions. [2022-03-03 16:54:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:01,585 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:01,585 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:01,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-03 16:54:01,585 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:01,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:01,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1079264617, now seen corresponding path program 32 times [2022-03-03 16:54:01,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:01,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743573052] [2022-03-03 16:54:01,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:01,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:01,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:01,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743573052] [2022-03-03 16:54:01,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743573052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:01,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:01,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:01,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735450585] [2022-03-03 16:54:01,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:01,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:01,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:01,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:01,679 INFO L87 Difference]: Start difference. First operand 11663 states and 32429 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:01,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:01,961 INFO L93 Difference]: Finished difference Result 14563 states and 40037 transitions. [2022-03-03 16:54:01,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:54:01,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:01,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:01,989 INFO L225 Difference]: With dead ends: 14563 [2022-03-03 16:54:01,989 INFO L226 Difference]: Without dead ends: 14416 [2022-03-03 16:54:01,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:54:01,989 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 497 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:01,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 2544 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14416 states. [2022-03-03 16:54:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14416 to 13479. [2022-03-03 16:54:02,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13479 states, 13478 states have (on average 2.780011871197507) internal successors, (37469), 13478 states have internal predecessors, (37469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:02,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13479 states to 13479 states and 37469 transitions. [2022-03-03 16:54:02,226 INFO L78 Accepts]: Start accepts. Automaton has 13479 states and 37469 transitions. Word has length 227 [2022-03-03 16:54:02,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:02,227 INFO L470 AbstractCegarLoop]: Abstraction has 13479 states and 37469 transitions. [2022-03-03 16:54:02,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13479 states and 37469 transitions. [2022-03-03 16:54:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:02,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:02,246 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:02,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-03 16:54:02,246 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:02,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:02,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2126981933, now seen corresponding path program 33 times [2022-03-03 16:54:02,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:02,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873571902] [2022-03-03 16:54:02,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:02,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:02,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:02,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873571902] [2022-03-03 16:54:02,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873571902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:02,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:02,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:02,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381629962] [2022-03-03 16:54:02,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:02,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:02,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:02,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:02,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:02,348 INFO L87 Difference]: Start difference. First operand 13479 states and 37469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:02,678 INFO L93 Difference]: Finished difference Result 14413 states and 39674 transitions. [2022-03-03 16:54:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 16:54:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:02,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:02,706 INFO L225 Difference]: With dead ends: 14413 [2022-03-03 16:54:02,706 INFO L226 Difference]: Without dead ends: 13986 [2022-03-03 16:54:02,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-03 16:54:02,707 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 474 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:02,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2313 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-03-03 16:54:02,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 13223. [2022-03-03 16:54:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13223 states, 13222 states have (on average 2.780592951142036) internal successors, (36765), 13222 states have internal predecessors, (36765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13223 states to 13223 states and 36765 transitions. [2022-03-03 16:54:02,979 INFO L78 Accepts]: Start accepts. Automaton has 13223 states and 36765 transitions. Word has length 227 [2022-03-03 16:54:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:02,980 INFO L470 AbstractCegarLoop]: Abstraction has 13223 states and 36765 transitions. [2022-03-03 16:54:02,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:02,980 INFO L276 IsEmpty]: Start isEmpty. Operand 13223 states and 36765 transitions. [2022-03-03 16:54:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:02,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:02,998 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:02,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-03 16:54:02,998 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:02,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:02,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1597277199, now seen corresponding path program 34 times [2022-03-03 16:54:02,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:02,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4085185] [2022-03-03 16:54:02,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:02,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:03,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:03,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4085185] [2022-03-03 16:54:03,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4085185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:03,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:03,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:03,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854640429] [2022-03-03 16:54:03,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:03,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:03,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:03,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:03,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:03,100 INFO L87 Difference]: Start difference. First operand 13223 states and 36765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:03,364 INFO L93 Difference]: Finished difference Result 14079 states and 38823 transitions. [2022-03-03 16:54:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:54:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:03,391 INFO L225 Difference]: With dead ends: 14079 [2022-03-03 16:54:03,391 INFO L226 Difference]: Without dead ends: 13888 [2022-03-03 16:54:03,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:03,392 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 325 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:03,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 2895 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:03,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-03-03 16:54:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13191. [2022-03-03 16:54:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13191 states, 13190 states have (on average 2.7806671721000757) internal successors, (36677), 13190 states have internal predecessors, (36677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 36677 transitions. [2022-03-03 16:54:03,613 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 36677 transitions. Word has length 227 [2022-03-03 16:54:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:03,613 INFO L470 AbstractCegarLoop]: Abstraction has 13191 states and 36677 transitions. [2022-03-03 16:54:03,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 36677 transitions. [2022-03-03 16:54:03,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:03,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:03,636 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:03,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-03 16:54:03,636 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:03,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1182713145, now seen corresponding path program 35 times [2022-03-03 16:54:03,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:03,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352271319] [2022-03-03 16:54:03,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:03,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:03,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:03,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352271319] [2022-03-03 16:54:03,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352271319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:03,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:03,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:03,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504021585] [2022-03-03 16:54:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:03,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:03,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:03,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:03,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:03,737 INFO L87 Difference]: Start difference. First operand 13191 states and 36677 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:03,920 INFO L93 Difference]: Finished difference Result 13951 states and 38503 transitions. [2022-03-03 16:54:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:03,920 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:03,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:03,946 INFO L225 Difference]: With dead ends: 13951 [2022-03-03 16:54:03,947 INFO L226 Difference]: Without dead ends: 13736 [2022-03-03 16:54:03,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:54:03,947 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 363 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:03,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 2439 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:03,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-03-03 16:54:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 12979. [2022-03-03 16:54:04,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12979 states, 12978 states have (on average 2.7743874248728617) internal successors, (36006), 12978 states have internal predecessors, (36006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:04,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 36006 transitions. [2022-03-03 16:54:04,162 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 36006 transitions. Word has length 227 [2022-03-03 16:54:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:04,162 INFO L470 AbstractCegarLoop]: Abstraction has 12979 states and 36006 transitions. [2022-03-03 16:54:04,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 36006 transitions. [2022-03-03 16:54:04,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:04,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:04,183 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:04,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-03 16:54:04,184 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:04,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:04,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1918630919, now seen corresponding path program 1 times [2022-03-03 16:54:04,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:04,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415870213] [2022-03-03 16:54:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:04,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:04,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:04,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415870213] [2022-03-03 16:54:04,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415870213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:04,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:04,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:04,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945732435] [2022-03-03 16:54:04,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:04,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:04,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:04,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:04,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:04,303 INFO L87 Difference]: Start difference. First operand 12979 states and 36006 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:04,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:04,592 INFO L93 Difference]: Finished difference Result 16694 states and 45764 transitions. [2022-03-03 16:54:04,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 16:54:04,592 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:04,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:04,622 INFO L225 Difference]: With dead ends: 16694 [2022-03-03 16:54:04,622 INFO L226 Difference]: Without dead ends: 16547 [2022-03-03 16:54:04,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-03 16:54:04,622 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 372 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:04,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 2788 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:04,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16547 states. [2022-03-03 16:54:04,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16547 to 15795. [2022-03-03 16:54:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15795 states, 15794 states have (on average 2.762821324553628) internal successors, (43636), 15794 states have internal predecessors, (43636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:04,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 43636 transitions. [2022-03-03 16:54:04,876 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 43636 transitions. Word has length 227 [2022-03-03 16:54:04,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:04,876 INFO L470 AbstractCegarLoop]: Abstraction has 15795 states and 43636 transitions. [2022-03-03 16:54:04,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:04,877 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 43636 transitions. [2022-03-03 16:54:04,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:04,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:04,902 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:04,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-03 16:54:04,903 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:04,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1287615631, now seen corresponding path program 2 times [2022-03-03 16:54:04,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:04,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594252819] [2022-03-03 16:54:04,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:04,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:05,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:05,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594252819] [2022-03-03 16:54:05,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594252819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:05,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:05,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:05,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360277681] [2022-03-03 16:54:05,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:05,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:05,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:05,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:05,066 INFO L87 Difference]: Start difference. First operand 15795 states and 43636 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:05,368 INFO L93 Difference]: Finished difference Result 16558 states and 45380 transitions. [2022-03-03 16:54:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:54:05,369 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:05,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:05,395 INFO L225 Difference]: With dead ends: 16558 [2022-03-03 16:54:05,395 INFO L226 Difference]: Without dead ends: 16131 [2022-03-03 16:54:05,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:54:05,396 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 353 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:05,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 3304 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:05,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2022-03-03 16:54:05,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 15539. [2022-03-03 16:54:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15539 states, 15538 states have (on average 2.7630325653237224) internal successors, (42932), 15538 states have internal predecessors, (42932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:05,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 42932 transitions. [2022-03-03 16:54:05,638 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 42932 transitions. Word has length 227 [2022-03-03 16:54:05,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:05,638 INFO L470 AbstractCegarLoop]: Abstraction has 15539 states and 42932 transitions. [2022-03-03 16:54:05,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:05,639 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 42932 transitions. [2022-03-03 16:54:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:05,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:05,661 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:05,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-03 16:54:05,661 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:05,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:05,661 INFO L85 PathProgramCache]: Analyzing trace with hash -594416329, now seen corresponding path program 3 times [2022-03-03 16:54:05,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:05,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282403192] [2022-03-03 16:54:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:05,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:05,754 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:05,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:05,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282403192] [2022-03-03 16:54:05,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282403192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:05,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:05,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:05,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484131360] [2022-03-03 16:54:05,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:05,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:05,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:05,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:05,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:05,756 INFO L87 Difference]: Start difference. First operand 15539 states and 42932 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:06,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:06,017 INFO L93 Difference]: Finished difference Result 16188 states and 44437 transitions. [2022-03-03 16:54:06,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:54:06,017 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:06,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:06,048 INFO L225 Difference]: With dead ends: 16188 [2022-03-03 16:54:06,048 INFO L226 Difference]: Without dead ends: 15970 [2022-03-03 16:54:06,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:06,048 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 280 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:06,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3043 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:06,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2022-03-03 16:54:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15507. [2022-03-03 16:54:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15507 states, 15506 states have (on average 2.7630594608538632) internal successors, (42844), 15506 states have internal predecessors, (42844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15507 states to 15507 states and 42844 transitions. [2022-03-03 16:54:06,306 INFO L78 Accepts]: Start accepts. Automaton has 15507 states and 42844 transitions. Word has length 227 [2022-03-03 16:54:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:06,306 INFO L470 AbstractCegarLoop]: Abstraction has 15507 states and 42844 transitions. [2022-03-03 16:54:06,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 15507 states and 42844 transitions. [2022-03-03 16:54:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:06,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:06,330 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:06,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-03 16:54:06,330 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:06,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:06,331 INFO L85 PathProgramCache]: Analyzing trace with hash -927845791, now seen corresponding path program 4 times [2022-03-03 16:54:06,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:06,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293849609] [2022-03-03 16:54:06,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:06,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:06,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:06,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293849609] [2022-03-03 16:54:06,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293849609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:06,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:06,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:06,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878480428] [2022-03-03 16:54:06,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:06,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:06,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:06,436 INFO L87 Difference]: Start difference. First operand 15507 states and 42844 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:06,654 INFO L93 Difference]: Finished difference Result 16096 states and 44209 transitions. [2022-03-03 16:54:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:06,654 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:06,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:06,682 INFO L225 Difference]: With dead ends: 16096 [2022-03-03 16:54:06,682 INFO L226 Difference]: Without dead ends: 15863 [2022-03-03 16:54:06,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:54:06,683 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 322 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:06,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2892 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15863 states. [2022-03-03 16:54:06,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15863 to 15460. [2022-03-03 16:54:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15459 states have (on average 2.762274403260237) internal successors, (42702), 15459 states have internal predecessors, (42702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42702 transitions. [2022-03-03 16:54:06,904 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42702 transitions. Word has length 227 [2022-03-03 16:54:06,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:06,904 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42702 transitions. [2022-03-03 16:54:06,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42702 transitions. [2022-03-03 16:54:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:06,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:06,926 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:06,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-03 16:54:06,926 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1157381049, now seen corresponding path program 5 times [2022-03-03 16:54:06,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:06,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512934533] [2022-03-03 16:54:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:06,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:07,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:07,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512934533] [2022-03-03 16:54:07,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512934533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:07,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:07,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:07,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043576788] [2022-03-03 16:54:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:07,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:07,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:07,042 INFO L87 Difference]: Start difference. First operand 15460 states and 42702 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:07,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:07,455 INFO L93 Difference]: Finished difference Result 16353 states and 44929 transitions. [2022-03-03 16:54:07,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:54:07,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:07,483 INFO L225 Difference]: With dead ends: 16353 [2022-03-03 16:54:07,483 INFO L226 Difference]: Without dead ends: 16206 [2022-03-03 16:54:07,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:54:07,483 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 245 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:07,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2756 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:07,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16206 states. [2022-03-03 16:54:07,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16206 to 15752. [2022-03-03 16:54:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.7600152371278015) internal successors, (43473), 15751 states have internal predecessors, (43473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43473 transitions. [2022-03-03 16:54:07,700 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43473 transitions. Word has length 227 [2022-03-03 16:54:07,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:07,701 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43473 transitions. [2022-03-03 16:54:07,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:07,701 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43473 transitions. [2022-03-03 16:54:07,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:07,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:07,723 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:07,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-03 16:54:07,724 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:07,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:07,724 INFO L85 PathProgramCache]: Analyzing trace with hash 68660303, now seen corresponding path program 6 times [2022-03-03 16:54:07,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:07,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657259181] [2022-03-03 16:54:07,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:07,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:07,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:07,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657259181] [2022-03-03 16:54:07,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657259181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:07,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:07,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:07,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569619420] [2022-03-03 16:54:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:07,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:07,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:07,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:07,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:07,831 INFO L87 Difference]: Start difference. First operand 15752 states and 43473 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:08,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:08,105 INFO L93 Difference]: Finished difference Result 16377 states and 44945 transitions. [2022-03-03 16:54:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:54:08,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:08,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:08,134 INFO L225 Difference]: With dead ends: 16377 [2022-03-03 16:54:08,134 INFO L226 Difference]: Without dead ends: 15950 [2022-03-03 16:54:08,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:54:08,134 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 235 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:08,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2734 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:08,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15950 states. [2022-03-03 16:54:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15950 to 15496. [2022-03-03 16:54:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.760180703452727) internal successors, (42769), 15495 states have internal predecessors, (42769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42769 transitions. [2022-03-03 16:54:08,354 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42769 transitions. Word has length 227 [2022-03-03 16:54:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:08,354 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42769 transitions. [2022-03-03 16:54:08,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42769 transitions. [2022-03-03 16:54:08,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:08,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:08,375 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:08,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-03 16:54:08,375 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:08,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:08,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1813371657, now seen corresponding path program 7 times [2022-03-03 16:54:08,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:08,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435185222] [2022-03-03 16:54:08,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:08,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:08,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:08,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435185222] [2022-03-03 16:54:08,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435185222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:08,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:08,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:08,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913275381] [2022-03-03 16:54:08,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:08,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:08,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:08,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:08,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:08,464 INFO L87 Difference]: Start difference. First operand 15496 states and 42769 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:08,671 INFO L93 Difference]: Finished difference Result 15947 states and 43862 transitions. [2022-03-03 16:54:08,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:08,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:08,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:08,697 INFO L225 Difference]: With dead ends: 15947 [2022-03-03 16:54:08,698 INFO L226 Difference]: Without dead ends: 15729 [2022-03-03 16:54:08,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:54:08,698 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 163 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:08,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 2673 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:08,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15729 states. [2022-03-03 16:54:08,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15729 to 15464. [2022-03-03 16:54:08,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15464 states, 15463 states have (on average 2.762012546077734) internal successors, (42709), 15463 states have internal predecessors, (42709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42709 transitions. [2022-03-03 16:54:08,924 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42709 transitions. Word has length 227 [2022-03-03 16:54:08,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:08,924 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42709 transitions. [2022-03-03 16:54:08,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:08,925 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42709 transitions. [2022-03-03 16:54:08,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:08,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:08,945 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:08,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-03 16:54:08,945 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:08,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:08,946 INFO L85 PathProgramCache]: Analyzing trace with hash 36395847, now seen corresponding path program 8 times [2022-03-03 16:54:08,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:08,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915943558] [2022-03-03 16:54:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:09,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:09,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915943558] [2022-03-03 16:54:09,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915943558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:09,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:09,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:09,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367963141] [2022-03-03 16:54:09,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:09,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:09,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:09,035 INFO L87 Difference]: Start difference. First operand 15464 states and 42709 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:09,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:09,303 INFO L93 Difference]: Finished difference Result 16347 states and 44848 transitions. [2022-03-03 16:54:09,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:54:09,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:09,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:09,332 INFO L225 Difference]: With dead ends: 16347 [2022-03-03 16:54:09,332 INFO L226 Difference]: Without dead ends: 16200 [2022-03-03 16:54:09,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:54:09,332 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 230 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:09,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2666 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:09,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16200 states. [2022-03-03 16:54:09,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16200 to 15752. [2022-03-03 16:54:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.759761284997778) internal successors, (43469), 15751 states have internal predecessors, (43469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:09,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-03-03 16:54:09,640 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-03-03 16:54:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:09,640 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-03-03 16:54:09,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-03-03 16:54:09,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:09,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:09,663 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:09,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-03 16:54:09,663 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1052324899, now seen corresponding path program 9 times [2022-03-03 16:54:09,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:09,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440441092] [2022-03-03 16:54:09,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:09,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:09,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:09,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440441092] [2022-03-03 16:54:09,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440441092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:09,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:09,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:09,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351446276] [2022-03-03 16:54:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:09,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:09,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:09,750 INFO L87 Difference]: Start difference. First operand 15752 states and 43469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:10,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:10,006 INFO L93 Difference]: Finished difference Result 16197 states and 44485 transitions. [2022-03-03 16:54:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:54:10,007 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:10,036 INFO L225 Difference]: With dead ends: 16197 [2022-03-03 16:54:10,037 INFO L226 Difference]: Without dead ends: 15770 [2022-03-03 16:54:10,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:10,037 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 200 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:10,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2910 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:10,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15770 states. [2022-03-03 16:54:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15770 to 15496. [2022-03-03 16:54:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7599225556631173) internal successors, (42765), 15495 states have internal predecessors, (42765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:10,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-03-03 16:54:10,305 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-03-03 16:54:10,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:10,305 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-03-03 16:54:10,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:10,306 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-03-03 16:54:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:10,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:10,328 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:10,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-03 16:54:10,328 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1582029633, now seen corresponding path program 10 times [2022-03-03 16:54:10,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:10,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488689059] [2022-03-03 16:54:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:10,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:10,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:10,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488689059] [2022-03-03 16:54:10,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488689059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:10,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:10,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:10,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818984280] [2022-03-03 16:54:10,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:10,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:10,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:10,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:10,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:10,432 INFO L87 Difference]: Start difference. First operand 15496 states and 42765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:10,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:10,652 INFO L93 Difference]: Finished difference Result 15767 states and 43402 transitions. [2022-03-03 16:54:10,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:10,653 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:10,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:10,680 INFO L225 Difference]: With dead ends: 15767 [2022-03-03 16:54:10,680 INFO L226 Difference]: Without dead ends: 15568 [2022-03-03 16:54:10,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:54:10,680 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 148 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:10,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 2552 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15568 states. [2022-03-03 16:54:10,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15568 to 15456. [2022-03-03 16:54:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15456 states, 15455 states have (on average 2.7620187641539955) internal successors, (42687), 15455 states have internal predecessors, (42687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:10,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 42687 transitions. [2022-03-03 16:54:10,905 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 42687 transitions. Word has length 227 [2022-03-03 16:54:10,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:10,906 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 42687 transitions. [2022-03-03 16:54:10,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:10,906 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 42687 transitions. [2022-03-03 16:54:10,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:10,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:10,929 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:10,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-03 16:54:10,929 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:10,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:10,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1902779655, now seen corresponding path program 11 times [2022-03-03 16:54:10,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:10,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299077605] [2022-03-03 16:54:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:11,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:11,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299077605] [2022-03-03 16:54:11,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299077605] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:11,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:11,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:11,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857574018] [2022-03-03 16:54:11,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:11,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:11,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:11,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:11,069 INFO L87 Difference]: Start difference. First operand 15456 states and 42687 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:11,369 INFO L93 Difference]: Finished difference Result 16365 states and 44958 transitions. [2022-03-03 16:54:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:54:11,370 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:11,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:11,400 INFO L225 Difference]: With dead ends: 16365 [2022-03-03 16:54:11,400 INFO L226 Difference]: Without dead ends: 16218 [2022-03-03 16:54:11,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:54:11,400 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 197 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:11,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 2711 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:11,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16218 states. [2022-03-03 16:54:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16218 to 15752. [2022-03-03 16:54:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.759761284997778) internal successors, (43469), 15751 states have internal predecessors, (43469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-03-03 16:54:11,722 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-03-03 16:54:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:11,723 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-03-03 16:54:11,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-03-03 16:54:11,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:11,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:11,746 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:11,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-03 16:54:11,746 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:11,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1303466895, now seen corresponding path program 12 times [2022-03-03 16:54:11,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:11,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215661939] [2022-03-03 16:54:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:11,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:11,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:11,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215661939] [2022-03-03 16:54:11,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215661939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:11,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:11,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:11,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728882908] [2022-03-03 16:54:11,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:11,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:11,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:11,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:11,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:11,861 INFO L87 Difference]: Start difference. First operand 15752 states and 43469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:12,142 INFO L93 Difference]: Finished difference Result 16389 states and 44974 transitions. [2022-03-03 16:54:12,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:54:12,142 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:12,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:12,172 INFO L225 Difference]: With dead ends: 16389 [2022-03-03 16:54:12,172 INFO L226 Difference]: Without dead ends: 15962 [2022-03-03 16:54:12,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:54:12,172 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 196 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:12,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2484 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:12,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-03-03 16:54:12,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 15496. [2022-03-03 16:54:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7599225556631173) internal successors, (42765), 15495 states have internal predecessors, (42765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:12,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-03-03 16:54:12,428 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-03-03 16:54:12,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:12,428 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-03-03 16:54:12,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:12,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-03-03 16:54:12,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:12,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:12,451 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:12,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-03 16:54:12,451 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:12,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash -578565065, now seen corresponding path program 13 times [2022-03-03 16:54:12,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:12,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099710721] [2022-03-03 16:54:12,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:12,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:12,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099710721] [2022-03-03 16:54:12,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099710721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:12,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:12,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:12,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099725680] [2022-03-03 16:54:12,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:12,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:12,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:12,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:12,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:12,555 INFO L87 Difference]: Start difference. First operand 15496 states and 42765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:12,759 INFO L93 Difference]: Finished difference Result 15959 states and 43891 transitions. [2022-03-03 16:54:12,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:12,760 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:12,787 INFO L225 Difference]: With dead ends: 15959 [2022-03-03 16:54:12,788 INFO L226 Difference]: Without dead ends: 15741 [2022-03-03 16:54:12,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:54:12,788 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 127 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:12,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 2417 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:12,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15741 states. [2022-03-03 16:54:12,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15741 to 15464. [2022-03-03 16:54:12,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15464 states, 15463 states have (on average 2.761753864062601) internal successors, (42705), 15463 states have internal predecessors, (42705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:13,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42705 transitions. [2022-03-03 16:54:13,032 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42705 transitions. Word has length 227 [2022-03-03 16:54:13,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:13,032 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42705 transitions. [2022-03-03 16:54:13,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:13,032 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42705 transitions. [2022-03-03 16:54:13,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:13,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:13,057 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:13,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-03 16:54:13,057 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:13,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1271202439, now seen corresponding path program 14 times [2022-03-03 16:54:13,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:13,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904597742] [2022-03-03 16:54:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:13,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:13,161 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:13,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:13,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904597742] [2022-03-03 16:54:13,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904597742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:13,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:13,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:13,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342211000] [2022-03-03 16:54:13,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:13,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:13,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:13,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:13,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:13,162 INFO L87 Difference]: Start difference. First operand 15464 states and 42705 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:13,452 INFO L93 Difference]: Finished difference Result 16443 states and 45108 transitions. [2022-03-03 16:54:13,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:54:13,452 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:13,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:13,483 INFO L225 Difference]: With dead ends: 16443 [2022-03-03 16:54:13,483 INFO L226 Difference]: Without dead ends: 16296 [2022-03-03 16:54:13,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:54:13,483 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 212 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:13,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 2483 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:13,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-03-03 16:54:13,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 15752. [2022-03-03 16:54:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.7595073328677544) internal successors, (43465), 15751 states have internal predecessors, (43465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43465 transitions. [2022-03-03 16:54:13,737 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43465 transitions. Word has length 227 [2022-03-03 16:54:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:13,737 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43465 transitions. [2022-03-03 16:54:13,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43465 transitions. [2022-03-03 16:54:13,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:13,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:13,761 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:13,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-03 16:54:13,762 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash 182481693, now seen corresponding path program 15 times [2022-03-03 16:54:13,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:13,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542232805] [2022-03-03 16:54:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:13,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:13,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542232805] [2022-03-03 16:54:13,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542232805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:13,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:13,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:13,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485332649] [2022-03-03 16:54:13,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:13,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:13,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:13,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:13,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:13,890 INFO L87 Difference]: Start difference. First operand 15752 states and 43465 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:14,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:14,176 INFO L93 Difference]: Finished difference Result 16293 states and 44745 transitions. [2022-03-03 16:54:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:54:14,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:14,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:14,204 INFO L225 Difference]: With dead ends: 16293 [2022-03-03 16:54:14,205 INFO L226 Difference]: Without dead ends: 15866 [2022-03-03 16:54:14,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:14,205 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 179 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:14,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 2678 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:14,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15866 states. [2022-03-03 16:54:14,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15866 to 15496. [2022-03-03 16:54:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7596644078735078) internal successors, (42761), 15495 states have internal predecessors, (42761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42761 transitions. [2022-03-03 16:54:14,481 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42761 transitions. Word has length 227 [2022-03-03 16:54:14,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:14,481 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42761 transitions. [2022-03-03 16:54:14,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:14,481 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42761 transitions. [2022-03-03 16:54:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:14,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:14,503 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:14,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-03 16:54:14,503 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:14,503 INFO L85 PathProgramCache]: Analyzing trace with hash -347223041, now seen corresponding path program 16 times [2022-03-03 16:54:14,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:14,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515855531] [2022-03-03 16:54:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:14,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:14,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:14,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515855531] [2022-03-03 16:54:14,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515855531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:14,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:14,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:14,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001183557] [2022-03-03 16:54:14,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:14,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:14,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:14,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:14,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:14,624 INFO L87 Difference]: Start difference. First operand 15496 states and 42761 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:14,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:14,862 INFO L93 Difference]: Finished difference Result 15863 states and 43662 transitions. [2022-03-03 16:54:14,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:14,862 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:14,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:14,890 INFO L225 Difference]: With dead ends: 15863 [2022-03-03 16:54:14,890 INFO L226 Difference]: Without dead ends: 15668 [2022-03-03 16:54:14,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:54:14,891 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 114 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:14,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2398 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2022-03-03 16:54:15,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 15460. [2022-03-03 16:54:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15459 states have (on average 2.761756905362572) internal successors, (42694), 15459 states have internal predecessors, (42694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42694 transitions. [2022-03-03 16:54:15,127 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42694 transitions. Word has length 227 [2022-03-03 16:54:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:15,128 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42694 transitions. [2022-03-03 16:54:15,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:15,128 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42694 transitions. [2022-03-03 16:54:15,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:15,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:15,151 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:15,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-03 16:54:15,151 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:15,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:15,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1496021797, now seen corresponding path program 17 times [2022-03-03 16:54:15,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:15,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816292340] [2022-03-03 16:54:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:15,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:15,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:15,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816292340] [2022-03-03 16:54:15,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816292340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:15,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:15,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:15,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793429744] [2022-03-03 16:54:15,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:15,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:15,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:15,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:15,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:15,272 INFO L87 Difference]: Start difference. First operand 15460 states and 42694 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:15,596 INFO L93 Difference]: Finished difference Result 16387 states and 44950 transitions. [2022-03-03 16:54:15,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:54:15,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:15,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:15,624 INFO L225 Difference]: With dead ends: 16387 [2022-03-03 16:54:15,624 INFO L226 Difference]: Without dead ends: 16240 [2022-03-03 16:54:15,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:54:15,624 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 229 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:15,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2239 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:15,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16240 states. [2022-03-03 16:54:15,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16240 to 15780. [2022-03-03 16:54:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15780 states, 15779 states have (on average 2.759490462006464) internal successors, (43542), 15779 states have internal predecessors, (43542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15780 states to 15780 states and 43542 transitions. [2022-03-03 16:54:15,868 INFO L78 Accepts]: Start accepts. Automaton has 15780 states and 43542 transitions. Word has length 227 [2022-03-03 16:54:15,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:15,868 INFO L470 AbstractCegarLoop]: Abstraction has 15780 states and 43542 transitions. [2022-03-03 16:54:15,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 15780 states and 43542 transitions. [2022-03-03 16:54:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:15,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:15,893 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:15,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-03 16:54:15,894 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:15,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:15,894 INFO L85 PathProgramCache]: Analyzing trace with hash 407301051, now seen corresponding path program 18 times [2022-03-03 16:54:15,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:15,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644195622] [2022-03-03 16:54:15,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:15,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:15,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:15,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644195622] [2022-03-03 16:54:15,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644195622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:15,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:15,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:15,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869872259] [2022-03-03 16:54:15,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:15,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:15,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:15,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:15,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:15,996 INFO L87 Difference]: Start difference. First operand 15780 states and 43542 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:16,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:16,243 INFO L93 Difference]: Finished difference Result 16237 states and 44587 transitions. [2022-03-03 16:54:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:54:16,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:16,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:16,273 INFO L225 Difference]: With dead ends: 16237 [2022-03-03 16:54:16,273 INFO L226 Difference]: Without dead ends: 15810 [2022-03-03 16:54:16,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:16,274 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 189 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:16,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 2444 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:16,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15810 states. [2022-03-03 16:54:16,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15810 to 15524. [2022-03-03 16:54:16,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15524 states, 15523 states have (on average 2.7596469754557753) internal successors, (42838), 15523 states have internal predecessors, (42838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:16,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15524 states to 15524 states and 42838 transitions. [2022-03-03 16:54:16,514 INFO L78 Accepts]: Start accepts. Automaton has 15524 states and 42838 transitions. Word has length 227 [2022-03-03 16:54:16,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:16,514 INFO L470 AbstractCegarLoop]: Abstraction has 15524 states and 42838 transitions. [2022-03-03 16:54:16,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:16,514 INFO L276 IsEmpty]: Start isEmpty. Operand 15524 states and 42838 transitions. [2022-03-03 16:54:16,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:16,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:16,536 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:16,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-03 16:54:16,539 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:16,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:16,548 INFO L85 PathProgramCache]: Analyzing trace with hash -122403683, now seen corresponding path program 19 times [2022-03-03 16:54:16,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:16,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357006795] [2022-03-03 16:54:16,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:16,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:16,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:16,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357006795] [2022-03-03 16:54:16,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357006795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:16,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:16,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:16,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750099739] [2022-03-03 16:54:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:16,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:16,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:16,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:16,667 INFO L87 Difference]: Start difference. First operand 15524 states and 42838 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:16,953 INFO L93 Difference]: Finished difference Result 15891 states and 43707 transitions. [2022-03-03 16:54:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:54:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:16,979 INFO L225 Difference]: With dead ends: 15891 [2022-03-03 16:54:16,980 INFO L226 Difference]: Without dead ends: 15700 [2022-03-03 16:54:16,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:54:16,980 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 139 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:16,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 2145 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:16,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2022-03-03 16:54:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 15492. [2022-03-03 16:54:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15492 states, 15491 states have (on average 2.759666903363243) internal successors, (42750), 15491 states have internal predecessors, (42750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 42750 transitions. [2022-03-03 16:54:17,216 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 42750 transitions. Word has length 227 [2022-03-03 16:54:17,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:17,216 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 42750 transitions. [2022-03-03 16:54:17,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 42750 transitions. [2022-03-03 16:54:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:17,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:17,239 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:17,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-03 16:54:17,239 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1310251565, now seen corresponding path program 20 times [2022-03-03 16:54:17,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:17,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157026207] [2022-03-03 16:54:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:17,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:17,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157026207] [2022-03-03 16:54:17,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157026207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:17,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:17,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:17,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792930663] [2022-03-03 16:54:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:17,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:17,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:17,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:17,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:17,364 INFO L87 Difference]: Start difference. First operand 15492 states and 42750 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:17,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:17,585 INFO L93 Difference]: Finished difference Result 15775 states and 43416 transitions. [2022-03-03 16:54:17,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:17,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:17,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:17,613 INFO L225 Difference]: With dead ends: 15775 [2022-03-03 16:54:17,613 INFO L226 Difference]: Without dead ends: 15564 [2022-03-03 16:54:17,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:54:17,614 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 119 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:17,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1904 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15564 states. [2022-03-03 16:54:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15564 to 15452. [2022-03-03 16:54:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15452 states, 15451 states have (on average 2.7617629926865574) internal successors, (42672), 15451 states have internal predecessors, (42672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 42672 transitions. [2022-03-03 16:54:17,849 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 42672 transitions. Word has length 227 [2022-03-03 16:54:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:17,850 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 42672 transitions. [2022-03-03 16:54:17,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:17,850 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 42672 transitions. [2022-03-03 16:54:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:17,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:17,873 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:17,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-03 16:54:17,873 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:17,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash 521564985, now seen corresponding path program 21 times [2022-03-03 16:54:17,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:17,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117330695] [2022-03-03 16:54:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:17,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:17,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:17,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117330695] [2022-03-03 16:54:17,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117330695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:17,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:17,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:17,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274782882] [2022-03-03 16:54:17,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:17,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:17,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:17,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:17,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:17,988 INFO L87 Difference]: Start difference. First operand 15452 states and 42672 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:18,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:18,284 INFO L93 Difference]: Finished difference Result 16029 states and 44083 transitions. [2022-03-03 16:54:18,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:54:18,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:18,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:18,314 INFO L225 Difference]: With dead ends: 16029 [2022-03-03 16:54:18,314 INFO L226 Difference]: Without dead ends: 15882 [2022-03-03 16:54:18,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:54:18,314 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 196 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2560 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:18,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2560 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:18,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15882 states. [2022-03-03 16:54:18,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15882 to 15693. [2022-03-03 16:54:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15693 states, 15692 states have (on average 2.759941371399439) internal successors, (43309), 15692 states have internal predecessors, (43309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:18,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43309 transitions. [2022-03-03 16:54:18,559 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43309 transitions. Word has length 227 [2022-03-03 16:54:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:18,560 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43309 transitions. [2022-03-03 16:54:18,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43309 transitions. [2022-03-03 16:54:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:18,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:18,583 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:18,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-03 16:54:18,583 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:18,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash -567155761, now seen corresponding path program 22 times [2022-03-03 16:54:18,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:18,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109994435] [2022-03-03 16:54:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:18,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:18,700 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:18,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:18,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109994435] [2022-03-03 16:54:18,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109994435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:18,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:18,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:18,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127671817] [2022-03-03 16:54:18,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:18,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:18,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:18,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:18,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:18,701 INFO L87 Difference]: Start difference. First operand 15693 states and 43309 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:18,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:19,000 INFO L93 Difference]: Finished difference Result 16053 states and 44099 transitions. [2022-03-03 16:54:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:54:19,000 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:19,029 INFO L225 Difference]: With dead ends: 16053 [2022-03-03 16:54:19,029 INFO L226 Difference]: Without dead ends: 15626 [2022-03-03 16:54:19,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:19,030 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 198 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:19,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 2541 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:19,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15626 states. [2022-03-03 16:54:19,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15626 to 15437. [2022-03-03 16:54:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15436 states have (on average 2.760106245141228) internal successors, (42605), 15436 states have internal predecessors, (42605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:19,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42605 transitions. [2022-03-03 16:54:19,273 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42605 transitions. Word has length 227 [2022-03-03 16:54:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:19,273 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42605 transitions. [2022-03-03 16:54:19,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42605 transitions. [2022-03-03 16:54:19,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:19,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:19,295 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:19,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-03 16:54:19,295 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:19,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:19,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1845779575, now seen corresponding path program 23 times [2022-03-03 16:54:19,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:19,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711489476] [2022-03-03 16:54:19,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:19,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:19,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:19,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711489476] [2022-03-03 16:54:19,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711489476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:19,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:19,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:19,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210304430] [2022-03-03 16:54:19,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:19,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:19,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:19,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:19,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:19,450 INFO L87 Difference]: Start difference. First operand 15437 states and 42605 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:19,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:19,700 INFO L93 Difference]: Finished difference Result 15623 states and 43016 transitions. [2022-03-03 16:54:19,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:19,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:19,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:19,728 INFO L225 Difference]: With dead ends: 15623 [2022-03-03 16:54:19,729 INFO L226 Difference]: Without dead ends: 15405 [2022-03-03 16:54:19,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:54:19,729 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 137 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:19,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 2468 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:19,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15405 states. [2022-03-03 16:54:19,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15405 to 15405. [2022-03-03 16:54:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15405 states, 15404 states have (on average 2.7619449493638015) internal successors, (42545), 15404 states have internal predecessors, (42545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15405 states to 15405 states and 42545 transitions. [2022-03-03 16:54:19,964 INFO L78 Accepts]: Start accepts. Automaton has 15405 states and 42545 transitions. Word has length 227 [2022-03-03 16:54:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:19,964 INFO L470 AbstractCegarLoop]: Abstraction has 15405 states and 42545 transitions. [2022-03-03 16:54:19,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 15405 states and 42545 transitions. [2022-03-03 16:54:19,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:19,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:19,985 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:19,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-03 16:54:19,985 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash -599420217, now seen corresponding path program 24 times [2022-03-03 16:54:19,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:19,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65877471] [2022-03-03 16:54:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:19,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:20,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:20,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65877471] [2022-03-03 16:54:20,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65877471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:20,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:20,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:20,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887101466] [2022-03-03 16:54:20,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:20,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:20,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:20,095 INFO L87 Difference]: Start difference. First operand 15405 states and 42545 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:20,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:20,411 INFO L93 Difference]: Finished difference Result 16176 states and 44404 transitions. [2022-03-03 16:54:20,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:54:20,412 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:20,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:20,441 INFO L225 Difference]: With dead ends: 16176 [2022-03-03 16:54:20,441 INFO L226 Difference]: Without dead ends: 16029 [2022-03-03 16:54:20,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:20,441 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 216 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:20,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2422 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:20,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16029 states. [2022-03-03 16:54:20,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16029 to 15693. [2022-03-03 16:54:20,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15693 states, 15692 states have (on average 2.7596864644404793) internal successors, (43305), 15692 states have internal predecessors, (43305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43305 transitions. [2022-03-03 16:54:20,703 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43305 transitions. Word has length 227 [2022-03-03 16:54:20,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:20,704 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43305 transitions. [2022-03-03 16:54:20,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43305 transitions. [2022-03-03 16:54:20,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:20,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:20,727 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:20,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-03 16:54:20,727 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:20,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1688140963, now seen corresponding path program 25 times [2022-03-03 16:54:20,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:20,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409975006] [2022-03-03 16:54:20,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:20,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:20,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:20,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409975006] [2022-03-03 16:54:20,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409975006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:20,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:20,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:20,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998305728] [2022-03-03 16:54:20,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:20,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:20,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:20,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:20,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:20,846 INFO L87 Difference]: Start difference. First operand 15693 states and 43305 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:21,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:21,170 INFO L93 Difference]: Finished difference Result 16026 states and 44041 transitions. [2022-03-03 16:54:21,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:54:21,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:21,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:21,199 INFO L225 Difference]: With dead ends: 16026 [2022-03-03 16:54:21,200 INFO L226 Difference]: Without dead ends: 15599 [2022-03-03 16:54:21,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:21,200 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 199 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:21,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 2633 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2022-03-03 16:54:21,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 15437. [2022-03-03 16:54:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15436 states have (on average 2.7598471106504276) internal successors, (42601), 15436 states have internal predecessors, (42601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42601 transitions. [2022-03-03 16:54:21,444 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42601 transitions. Word has length 227 [2022-03-03 16:54:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:21,444 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42601 transitions. [2022-03-03 16:54:21,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:21,444 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42601 transitions. [2022-03-03 16:54:21,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:21,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:21,466 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:21,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-03 16:54:21,467 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:21,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:21,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2077121599, now seen corresponding path program 26 times [2022-03-03 16:54:21,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:21,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697333120] [2022-03-03 16:54:21,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:21,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:21,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:21,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697333120] [2022-03-03 16:54:21,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697333120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:21,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:21,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:21,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25448304] [2022-03-03 16:54:21,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:21,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:21,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:21,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:21,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:21,588 INFO L87 Difference]: Start difference. First operand 15437 states and 42601 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:21,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:21,790 INFO L93 Difference]: Finished difference Result 15596 states and 42958 transitions. [2022-03-03 16:54:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 16:54:21,790 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:21,817 INFO L225 Difference]: With dead ends: 15596 [2022-03-03 16:54:21,817 INFO L226 Difference]: Without dead ends: 15401 [2022-03-03 16:54:21,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-03-03 16:54:21,818 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 119 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:21,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 2331 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2022-03-03 16:54:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 15401. [2022-03-03 16:54:22,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15401 states, 15400 states have (on average 2.761948051948052) internal successors, (42534), 15400 states have internal predecessors, (42534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:22,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15401 states to 15401 states and 42534 transitions. [2022-03-03 16:54:22,153 INFO L78 Accepts]: Start accepts. Automaton has 15401 states and 42534 transitions. Word has length 227 [2022-03-03 16:54:22,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:22,153 INFO L470 AbstractCegarLoop]: Abstraction has 15401 states and 42534 transitions. [2022-03-03 16:54:22,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:22,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15401 states and 42534 transitions. [2022-03-03 16:54:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:22,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:22,173 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:22,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-03 16:54:22,174 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:22,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash -374600859, now seen corresponding path program 27 times [2022-03-03 16:54:22,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:22,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608770236] [2022-03-03 16:54:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:22,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:22,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:22,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608770236] [2022-03-03 16:54:22,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608770236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:22,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:22,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:22,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382792380] [2022-03-03 16:54:22,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:22,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:22,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:22,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:22,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:22,289 INFO L87 Difference]: Start difference. First operand 15401 states and 42534 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:22,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:22,593 INFO L93 Difference]: Finished difference Result 16216 states and 44510 transitions. [2022-03-03 16:54:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:54:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:22,622 INFO L225 Difference]: With dead ends: 16216 [2022-03-03 16:54:22,622 INFO L226 Difference]: Without dead ends: 16069 [2022-03-03 16:54:22,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:54:22,623 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 249 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:22,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2451 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16069 states. [2022-03-03 16:54:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16069 to 15721. [2022-03-03 16:54:22,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15721 states, 15720 states have (on average 2.759669211195929) internal successors, (43382), 15720 states have internal predecessors, (43382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:22,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15721 states to 15721 states and 43382 transitions. [2022-03-03 16:54:22,863 INFO L78 Accepts]: Start accepts. Automaton has 15721 states and 43382 transitions. Word has length 227 [2022-03-03 16:54:22,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:22,864 INFO L470 AbstractCegarLoop]: Abstraction has 15721 states and 43382 transitions. [2022-03-03 16:54:22,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 15721 states and 43382 transitions. [2022-03-03 16:54:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:22,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:22,888 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:22,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-03 16:54:22,889 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:22,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:22,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1463321605, now seen corresponding path program 28 times [2022-03-03 16:54:22,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:22,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713600706] [2022-03-03 16:54:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:22,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:23,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:23,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713600706] [2022-03-03 16:54:23,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713600706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:23,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:23,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:23,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003093108] [2022-03-03 16:54:23,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:23,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:23,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:23,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:23,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:23,005 INFO L87 Difference]: Start difference. First operand 15721 states and 43382 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:23,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:23,284 INFO L93 Difference]: Finished difference Result 16066 states and 44147 transitions. [2022-03-03 16:54:23,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:54:23,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:23,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:23,311 INFO L225 Difference]: With dead ends: 16066 [2022-03-03 16:54:23,311 INFO L226 Difference]: Without dead ends: 15639 [2022-03-03 16:54:23,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:54:23,311 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 226 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:23,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2461 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:23,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15639 states. [2022-03-03 16:54:23,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15639 to 15465. [2022-03-03 16:54:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15465 states, 15464 states have (on average 2.759829280910502) internal successors, (42678), 15464 states have internal predecessors, (42678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15465 states to 15465 states and 42678 transitions. [2022-03-03 16:54:23,525 INFO L78 Accepts]: Start accepts. Automaton has 15465 states and 42678 transitions. Word has length 227 [2022-03-03 16:54:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:23,525 INFO L470 AbstractCegarLoop]: Abstraction has 15465 states and 42678 transitions. [2022-03-03 16:54:23,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:23,525 INFO L276 IsEmpty]: Start isEmpty. Operand 15465 states and 42678 transitions. [2022-03-03 16:54:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:23,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:23,547 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:23,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-03 16:54:23,547 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:23,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1993026339, now seen corresponding path program 29 times [2022-03-03 16:54:23,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:23,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904837378] [2022-03-03 16:54:23,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:23,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:23,661 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:23,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:23,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904837378] [2022-03-03 16:54:23,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904837378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:23,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:23,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:23,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395754599] [2022-03-03 16:54:23,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:23,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:23,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:23,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:23,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:23,662 INFO L87 Difference]: Start difference. First operand 15465 states and 42678 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:23,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:23,917 INFO L93 Difference]: Finished difference Result 15720 states and 43267 transitions. [2022-03-03 16:54:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:54:23,918 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:23,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:23,944 INFO L225 Difference]: With dead ends: 15720 [2022-03-03 16:54:23,944 INFO L226 Difference]: Without dead ends: 15529 [2022-03-03 16:54:23,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:54:23,945 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 149 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:23,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 2592 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:23,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2022-03-03 16:54:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 15433. [2022-03-03 16:54:24,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15433 states, 15432 states have (on average 2.7598496630378433) internal successors, (42590), 15432 states have internal predecessors, (42590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:24,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15433 states to 15433 states and 42590 transitions. [2022-03-03 16:54:24,156 INFO L78 Accepts]: Start accepts. Automaton has 15433 states and 42590 transitions. Word has length 227 [2022-03-03 16:54:24,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:24,156 INFO L470 AbstractCegarLoop]: Abstraction has 15433 states and 42590 transitions. [2022-03-03 16:54:24,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15433 states and 42590 transitions. [2022-03-03 16:54:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:24,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:24,178 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:24,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-03 16:54:24,178 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:24,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:24,178 INFO L85 PathProgramCache]: Analyzing trace with hash -560371091, now seen corresponding path program 30 times [2022-03-03 16:54:24,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:24,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530207301] [2022-03-03 16:54:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:24,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:24,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:24,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530207301] [2022-03-03 16:54:24,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530207301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:24,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:24,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:24,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237184238] [2022-03-03 16:54:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:24,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:24,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:24,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:24,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:24,330 INFO L87 Difference]: Start difference. First operand 15433 states and 42590 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:24,569 INFO L93 Difference]: Finished difference Result 15604 states and 42976 transitions. [2022-03-03 16:54:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:24,570 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:24,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:24,594 INFO L225 Difference]: With dead ends: 15604 [2022-03-03 16:54:24,595 INFO L226 Difference]: Without dead ends: 15397 [2022-03-03 16:54:24,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-03-03 16:54:24,595 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 129 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:24,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 2326 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:24,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15397 states. [2022-03-03 16:54:24,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15397 to 15397. [2022-03-03 16:54:24,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15397 states, 15396 states have (on average 2.761951156144453) internal successors, (42523), 15396 states have internal predecessors, (42523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15397 states to 15397 states and 42523 transitions. [2022-03-03 16:54:24,878 INFO L78 Accepts]: Start accepts. Automaton has 15397 states and 42523 transitions. Word has length 227 [2022-03-03 16:54:24,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:24,879 INFO L470 AbstractCegarLoop]: Abstraction has 15397 states and 42523 transitions. [2022-03-03 16:54:24,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 15397 states and 42523 transitions. [2022-03-03 16:54:24,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:24,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:24,901 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:24,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-03 16:54:24,901 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:24,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:24,901 INFO L85 PathProgramCache]: Analyzing trace with hash 875777767, now seen corresponding path program 31 times [2022-03-03 16:54:24,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:24,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195049803] [2022-03-03 16:54:24,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:24,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:25,005 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:25,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:25,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195049803] [2022-03-03 16:54:25,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195049803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:25,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:25,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:25,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968200539] [2022-03-03 16:54:25,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:25,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:25,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:25,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:25,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:25,007 INFO L87 Difference]: Start difference. First operand 15397 states and 42523 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:25,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:25,357 INFO L93 Difference]: Finished difference Result 15456 states and 41855 transitions. [2022-03-03 16:54:25,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:54:25,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:25,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:25,383 INFO L225 Difference]: With dead ends: 15456 [2022-03-03 16:54:25,383 INFO L226 Difference]: Without dead ends: 15309 [2022-03-03 16:54:25,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:54:25,383 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 396 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:25,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 2230 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:25,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15309 states. [2022-03-03 16:54:25,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15309 to 13797. [2022-03-03 16:54:25,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 13796 states have (on average 2.7399246158306756) internal successors, (37800), 13796 states have internal predecessors, (37800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 37800 transitions. [2022-03-03 16:54:25,595 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 37800 transitions. Word has length 227 [2022-03-03 16:54:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:25,595 INFO L470 AbstractCegarLoop]: Abstraction has 13797 states and 37800 transitions. [2022-03-03 16:54:25,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 37800 transitions. [2022-03-03 16:54:25,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:25,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:25,615 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:25,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-03 16:54:25,615 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:25,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:25,615 INFO L85 PathProgramCache]: Analyzing trace with hash -212942979, now seen corresponding path program 32 times [2022-03-03 16:54:25,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:25,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509120435] [2022-03-03 16:54:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:25,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:25,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:25,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509120435] [2022-03-03 16:54:25,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509120435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:25,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:25,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:25,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123919938] [2022-03-03 16:54:25,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:25,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:25,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:25,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:25,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:25,737 INFO L87 Difference]: Start difference. First operand 13797 states and 37800 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:26,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:26,037 INFO L93 Difference]: Finished difference Result 15135 states and 41078 transitions. [2022-03-03 16:54:26,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:54:26,037 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:26,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:26,064 INFO L225 Difference]: With dead ends: 15135 [2022-03-03 16:54:26,065 INFO L226 Difference]: Without dead ends: 14708 [2022-03-03 16:54:26,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:54:26,065 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 323 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:26,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 2844 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14708 states. [2022-03-03 16:54:26,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14708 to 13541. [2022-03-03 16:54:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13541 states, 13540 states have (on average 2.7397341211226) internal successors, (37096), 13540 states have internal predecessors, (37096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 37096 transitions. [2022-03-03 16:54:26,279 INFO L78 Accepts]: Start accepts. Automaton has 13541 states and 37096 transitions. Word has length 227 [2022-03-03 16:54:26,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:26,279 INFO L470 AbstractCegarLoop]: Abstraction has 13541 states and 37096 transitions. [2022-03-03 16:54:26,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 13541 states and 37096 transitions. [2022-03-03 16:54:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:26,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:26,299 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:26,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-03 16:54:26,299 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1861767551, now seen corresponding path program 33 times [2022-03-03 16:54:26,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:26,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162997466] [2022-03-03 16:54:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:26,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:26,406 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:26,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:26,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162997466] [2022-03-03 16:54:26,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162997466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:26,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:26,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:26,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096852762] [2022-03-03 16:54:26,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:26,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:26,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:26,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:26,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:26,408 INFO L87 Difference]: Start difference. First operand 13541 states and 37096 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:26,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:26,653 INFO L93 Difference]: Finished difference Result 14789 states and 40198 transitions. [2022-03-03 16:54:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:54:26,653 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:26,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:26,681 INFO L225 Difference]: With dead ends: 14789 [2022-03-03 16:54:26,681 INFO L226 Difference]: Without dead ends: 14598 [2022-03-03 16:54:26,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:54:26,681 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 246 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:26,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2418 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:26,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2022-03-03 16:54:26,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 13509. [2022-03-03 16:54:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13509 states, 13508 states have (on average 2.7397098015990524) internal successors, (37008), 13508 states have internal predecessors, (37008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:26,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 37008 transitions. [2022-03-03 16:54:26,891 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 37008 transitions. Word has length 227 [2022-03-03 16:54:26,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:26,892 INFO L470 AbstractCegarLoop]: Abstraction has 13509 states and 37008 transitions. [2022-03-03 16:54:26,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 37008 transitions. [2022-03-03 16:54:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:26,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:26,912 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:26,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-03 16:54:26,912 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:26,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:26,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1719428251, now seen corresponding path program 34 times [2022-03-03 16:54:26,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:26,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859292741] [2022-03-03 16:54:26,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:26,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:27,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:27,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859292741] [2022-03-03 16:54:27,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859292741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:27,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:27,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:27,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836066359] [2022-03-03 16:54:27,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:27,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:27,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:27,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:27,026 INFO L87 Difference]: Start difference. First operand 13509 states and 37008 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:27,287 INFO L93 Difference]: Finished difference Result 14769 states and 40139 transitions. [2022-03-03 16:54:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 16:54:27,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:27,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:27,313 INFO L225 Difference]: With dead ends: 14769 [2022-03-03 16:54:27,313 INFO L226 Difference]: Without dead ends: 14566 [2022-03-03 16:54:27,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:54:27,314 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 234 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:27,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2791 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:27,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14566 states. [2022-03-03 16:54:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14566 to 13477. [2022-03-03 16:54:27,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13477 states, 13476 states have (on average 2.7396853665776195) internal successors, (36920), 13476 states have internal predecessors, (36920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13477 states to 13477 states and 36920 transitions. [2022-03-03 16:54:27,571 INFO L78 Accepts]: Start accepts. Automaton has 13477 states and 36920 transitions. Word has length 227 [2022-03-03 16:54:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:27,572 INFO L470 AbstractCegarLoop]: Abstraction has 13477 states and 36920 transitions. [2022-03-03 16:54:27,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 13477 states and 36920 transitions. [2022-03-03 16:54:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:27,594 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:27,594 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:27,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-03 16:54:27,594 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:27,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:27,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1870981163, now seen corresponding path program 35 times [2022-03-03 16:54:27,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:27,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275868768] [2022-03-03 16:54:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:27,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:27,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:27,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275868768] [2022-03-03 16:54:27,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275868768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:27,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:27,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 16:54:27,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260071721] [2022-03-03 16:54:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:27,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 16:54:27,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:27,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 16:54:27,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:54:27,714 INFO L87 Difference]: Start difference. First operand 13477 states and 36920 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:27,914 INFO L93 Difference]: Finished difference Result 14641 states and 39819 transitions. [2022-03-03 16:54:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 16:54:27,915 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:27,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:27,940 INFO L225 Difference]: With dead ends: 14641 [2022-03-03 16:54:27,940 INFO L226 Difference]: Without dead ends: 14418 [2022-03-03 16:54:27,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:54:27,941 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 277 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:27,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 1951 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:27,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14418 states. [2022-03-03 16:54:28,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14418 to 13785. [2022-03-03 16:54:28,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 13784 states have (on average 2.7338218224027857) internal successors, (37683), 13784 states have internal predecessors, (37683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 37683 transitions. [2022-03-03 16:54:28,163 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 37683 transitions. Word has length 227 [2022-03-03 16:54:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:28,163 INFO L470 AbstractCegarLoop]: Abstraction has 13785 states and 37683 transitions. [2022-03-03 16:54:28,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:28,163 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 37683 transitions. [2022-03-03 16:54:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 16:54:28,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:28,187 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:28,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-03 16:54:28,187 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:28,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:28,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1267834919, now seen corresponding path program 1 times [2022-03-03 16:54:28,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:28,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053947911] [2022-03-03 16:54:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:28,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:28,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053947911] [2022-03-03 16:54:28,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053947911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:28,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:28,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 16:54:28,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614294887] [2022-03-03 16:54:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:28,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 16:54:28,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:28,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 16:54:28,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-03 16:54:28,220 INFO L87 Difference]: Start difference. First operand 13785 states and 37683 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:28,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:28,305 INFO L93 Difference]: Finished difference Result 16699 states and 45640 transitions. [2022-03-03 16:54:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 16:54:28,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 16:54:28,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:28,336 INFO L225 Difference]: With dead ends: 16699 [2022-03-03 16:54:28,336 INFO L226 Difference]: Without dead ends: 16699 [2022-03-03 16:54:28,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-03 16:54:28,336 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 179 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:28,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1177 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:54:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16699 states. [2022-03-03 16:54:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16699 to 13663. [2022-03-03 16:54:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13663 states, 13662 states have (on average 2.7154150197628457) internal successors, (37098), 13662 states have internal predecessors, (37098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13663 states to 13663 states and 37098 transitions. [2022-03-03 16:54:28,578 INFO L78 Accepts]: Start accepts. Automaton has 13663 states and 37098 transitions. Word has length 227 [2022-03-03 16:54:28,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:28,578 INFO L470 AbstractCegarLoop]: Abstraction has 13663 states and 37098 transitions. [2022-03-03 16:54:28,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:28,578 INFO L276 IsEmpty]: Start isEmpty. Operand 13663 states and 37098 transitions. [2022-03-03 16:54:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-03 16:54:28,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:28,598 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:28,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-03 16:54:28,598 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:28,599 INFO L85 PathProgramCache]: Analyzing trace with hash 501455919, now seen corresponding path program 1 times [2022-03-03 16:54:28,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:28,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13023569] [2022-03-03 16:54:28,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:28,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:28,640 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:28,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:28,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13023569] [2022-03-03 16:54:28,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13023569] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:54:28,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830241673] [2022-03-03 16:54:28,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:28,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:54:28,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:54:28,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:54:28,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 16:54:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:28,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-03 16:54:28,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:54:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:29,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:54:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:29,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830241673] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:54:29,512 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:54:29,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-03-03 16:54:29,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804316831] [2022-03-03 16:54:29,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:54:29,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 16:54:29,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:29,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 16:54:29,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-03 16:54:29,514 INFO L87 Difference]: Start difference. First operand 13663 states and 37098 transitions. Second operand has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:29,684 INFO L93 Difference]: Finished difference Result 31225 states and 85401 transitions. [2022-03-03 16:54:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 16:54:29,684 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2022-03-03 16:54:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:29,740 INFO L225 Difference]: With dead ends: 31225 [2022-03-03 16:54:29,740 INFO L226 Difference]: Without dead ends: 31225 [2022-03-03 16:54:29,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-03-03 16:54:29,741 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 1022 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:29,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 1493 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:54:29,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2022-03-03 16:54:30,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 23355. [2022-03-03 16:54:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23355 states, 23354 states have (on average 2.748865290742485) internal successors, (64197), 23354 states have internal predecessors, (64197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:30,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23355 states to 23355 states and 64197 transitions. [2022-03-03 16:54:30,297 INFO L78 Accepts]: Start accepts. Automaton has 23355 states and 64197 transitions. Word has length 230 [2022-03-03 16:54:30,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:30,298 INFO L470 AbstractCegarLoop]: Abstraction has 23355 states and 64197 transitions. [2022-03-03 16:54:30,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:30,298 INFO L276 IsEmpty]: Start isEmpty. Operand 23355 states and 64197 transitions. [2022-03-03 16:54:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-03 16:54:30,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:30,323 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:30,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-03 16:54:30,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2022-03-03 16:54:30,540 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash -563810257, now seen corresponding path program 1 times [2022-03-03 16:54:30,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:30,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857506634] [2022-03-03 16:54:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:30,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:30,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:30,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857506634] [2022-03-03 16:54:30,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857506634] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:54:30,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785452048] [2022-03-03 16:54:30,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:30,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:54:30,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:54:30,599 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:54:30,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 16:54:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:30,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-03 16:54:30,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:54:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:31,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:54:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:31,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785452048] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:54:31,551 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:54:31,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-03-03 16:54:31,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342095706] [2022-03-03 16:54:31,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:54:31,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 16:54:31,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 16:54:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-03 16:54:31,552 INFO L87 Difference]: Start difference. First operand 23355 states and 64197 transitions. Second operand has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:31,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:31,861 INFO L93 Difference]: Finished difference Result 56701 states and 156233 transitions. [2022-03-03 16:54:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 16:54:31,861 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2022-03-03 16:54:31,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:31,983 INFO L225 Difference]: With dead ends: 56701 [2022-03-03 16:54:31,984 INFO L226 Difference]: Without dead ends: 56701 [2022-03-03 16:54:31,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-03-03 16:54:31,984 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 914 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:31,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [914 Valid, 1795 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:54:32,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56701 states. [2022-03-03 16:54:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56701 to 39273. [2022-03-03 16:54:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39273 states, 39272 states have (on average 2.7951466693827665) internal successors, (109771), 39272 states have internal predecessors, (109771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109771 transitions. [2022-03-03 16:54:33,316 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109771 transitions. Word has length 230 [2022-03-03 16:54:33,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:33,316 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109771 transitions. [2022-03-03 16:54:33,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109771 transitions. [2022-03-03 16:54:33,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:54:33,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:33,347 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:33,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-03 16:54:33,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2022-03-03 16:54:33,556 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:33,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:33,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1435683988, now seen corresponding path program 1 times [2022-03-03 16:54:33,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:33,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319476051] [2022-03-03 16:54:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:33,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:34,220 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:34,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:34,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319476051] [2022-03-03 16:54:34,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319476051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:34,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:34,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:54:34,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137915881] [2022-03-03 16:54:34,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:34,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:54:34,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:34,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:54:34,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:54:34,221 INFO L87 Difference]: Start difference. First operand 39273 states and 109771 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:35,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:35,849 INFO L93 Difference]: Finished difference Result 48771 states and 134993 transitions. [2022-03-03 16:54:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 16:54:35,850 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:54:35,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:35,958 INFO L225 Difference]: With dead ends: 48771 [2022-03-03 16:54:35,958 INFO L226 Difference]: Without dead ends: 47979 [2022-03-03 16:54:35,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=597, Invalid=2265, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 16:54:35,958 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1851 mSDsluCounter, 5407 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 5728 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:35,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1851 Valid, 5728 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 16:54:36,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47979 states. [2022-03-03 16:54:36,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47979 to 39273. [2022-03-03 16:54:36,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39273 states, 39272 states have (on average 2.794892035037686) internal successors, (109761), 39272 states have internal predecessors, (109761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109761 transitions. [2022-03-03 16:54:36,909 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109761 transitions. Word has length 231 [2022-03-03 16:54:36,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:36,909 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109761 transitions. [2022-03-03 16:54:36,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:36,909 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109761 transitions. [2022-03-03 16:54:36,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:54:36,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:36,943 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:36,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-03 16:54:36,943 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:36,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:36,944 INFO L85 PathProgramCache]: Analyzing trace with hash 766716600, now seen corresponding path program 2 times [2022-03-03 16:54:36,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:36,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825041350] [2022-03-03 16:54:36,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:36,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:37,515 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:37,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:37,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825041350] [2022-03-03 16:54:37,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825041350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:37,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:37,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:54:37,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059277987] [2022-03-03 16:54:37,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:37,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:54:37,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:37,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:54:37,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:54:37,517 INFO L87 Difference]: Start difference. First operand 39273 states and 109761 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:39,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:39,323 INFO L93 Difference]: Finished difference Result 52312 states and 144812 transitions. [2022-03-03 16:54:39,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 16:54:39,324 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:54:39,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:39,439 INFO L225 Difference]: With dead ends: 52312 [2022-03-03 16:54:39,439 INFO L226 Difference]: Without dead ends: 51663 [2022-03-03 16:54:39,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=729, Invalid=2693, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 16:54:39,440 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 2031 mSDsluCounter, 5435 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 5771 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:39,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2031 Valid, 5771 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 16:54:39,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51663 states. [2022-03-03 16:54:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51663 to 39616. [2022-03-03 16:54:40,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39616 states, 39615 states have (on average 2.794118389498927) internal successors, (110689), 39615 states have internal predecessors, (110689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39616 states to 39616 states and 110689 transitions. [2022-03-03 16:54:40,405 INFO L78 Accepts]: Start accepts. Automaton has 39616 states and 110689 transitions. Word has length 231 [2022-03-03 16:54:40,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:40,405 INFO L470 AbstractCegarLoop]: Abstraction has 39616 states and 110689 transitions. [2022-03-03 16:54:40,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 39616 states and 110689 transitions. [2022-03-03 16:54:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:54:40,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:40,442 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:40,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-03 16:54:40,442 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:40,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1454566740, now seen corresponding path program 3 times [2022-03-03 16:54:40,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:40,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620825112] [2022-03-03 16:54:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:40,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:41,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:41,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620825112] [2022-03-03 16:54:41,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620825112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:41,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:41,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:54:41,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165149060] [2022-03-03 16:54:41,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:41,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:54:41,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:41,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:54:41,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:54:41,134 INFO L87 Difference]: Start difference. First operand 39616 states and 110689 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:47,778 INFO L93 Difference]: Finished difference Result 67360 states and 185691 transitions. [2022-03-03 16:54:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-03 16:54:47,779 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:54:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:47,921 INFO L225 Difference]: With dead ends: 67360 [2022-03-03 16:54:47,921 INFO L226 Difference]: Without dead ends: 67360 [2022-03-03 16:54:47,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4835 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3572, Invalid=14250, Unknown=0, NotChecked=0, Total=17822 [2022-03-03 16:54:47,922 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 2470 mSDsluCounter, 9284 mSDsCounter, 0 mSdLazyCounter, 3474 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 3498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:47,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2470 Valid, 9821 Invalid, 3498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-03 16:54:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67360 states. [2022-03-03 16:54:48,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67360 to 39680. [2022-03-03 16:54:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:49,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-03-03 16:54:49,066 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-03-03 16:54:49,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:49,066 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-03-03 16:54:49,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:49,067 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-03-03 16:54:49,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:54:49,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:49,106 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:49,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-03 16:54:49,107 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:49,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1020096502, now seen corresponding path program 4 times [2022-03-03 16:54:49,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:49,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521021493] [2022-03-03 16:54:49,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:49,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:49,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:49,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521021493] [2022-03-03 16:54:49,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521021493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:49,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:49,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:54:49,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794822268] [2022-03-03 16:54:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:49,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:54:49,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:49,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:54:49,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:54:49,838 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:54:56,434 INFO L93 Difference]: Finished difference Result 52998 states and 146732 transitions. [2022-03-03 16:54:56,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-03 16:54:56,434 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:54:56,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:54:56,607 INFO L225 Difference]: With dead ends: 52998 [2022-03-03 16:54:56,607 INFO L226 Difference]: Without dead ends: 52998 [2022-03-03 16:54:56,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3332, Invalid=12418, Unknown=0, NotChecked=0, Total=15750 [2022-03-03 16:54:56,608 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 2288 mSDsluCounter, 10031 mSDsCounter, 0 mSdLazyCounter, 3680 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 10557 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:54:56,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2288 Valid, 10557 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3680 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-03 16:54:56,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52998 states. [2022-03-03 16:54:57,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52998 to 39680. [2022-03-03 16:54:57,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-03-03 16:54:57,395 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-03-03 16:54:57,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:54:57,395 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-03-03 16:54:57,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:54:57,395 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-03-03 16:54:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:54:57,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:54:57,432 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:54:57,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-03 16:54:57,432 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:54:57,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:54:57,433 INFO L85 PathProgramCache]: Analyzing trace with hash -773984514, now seen corresponding path program 5 times [2022-03-03 16:54:57,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:54:57,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719799737] [2022-03-03 16:54:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:54:57,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:54:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:54:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:54:57,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:54:57,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719799737] [2022-03-03 16:54:57,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719799737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:54:57,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:54:57,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:54:57,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646509629] [2022-03-03 16:54:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:54:57,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:54:57,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:54:57,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:54:57,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:54:57,918 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:00,076 INFO L93 Difference]: Finished difference Result 50928 states and 141170 transitions. [2022-03-03 16:55:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 16:55:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:00,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:00,179 INFO L225 Difference]: With dead ends: 50928 [2022-03-03 16:55:00,180 INFO L226 Difference]: Without dead ends: 50928 [2022-03-03 16:55:00,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=872, Invalid=2910, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 16:55:00,180 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 1707 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:00,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1707 Valid, 5380 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 16:55:00,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50928 states. [2022-03-03 16:55:00,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50928 to 39680. [2022-03-03 16:55:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-03-03 16:55:00,970 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-03-03 16:55:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:00,970 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-03-03 16:55:00,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-03-03 16:55:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:01,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:01,007 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:01,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-03 16:55:01,007 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:01,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:01,007 INFO L85 PathProgramCache]: Analyzing trace with hash -430937490, now seen corresponding path program 6 times [2022-03-03 16:55:01,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:01,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934758265] [2022-03-03 16:55:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:01,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:01,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:01,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934758265] [2022-03-03 16:55:01,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934758265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:01,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:01,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:55:01,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022534604] [2022-03-03 16:55:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:01,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:55:01,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:01,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:55:01,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:55:01,706 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:07,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:07,514 INFO L93 Difference]: Finished difference Result 57004 states and 157565 transitions. [2022-03-03 16:55:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-03 16:55:07,514 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:07,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:07,626 INFO L225 Difference]: With dead ends: 57004 [2022-03-03 16:55:07,626 INFO L226 Difference]: Without dead ends: 56355 [2022-03-03 16:55:07,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5909 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3953, Invalid=16353, Unknown=0, NotChecked=0, Total=20306 [2022-03-03 16:55:07,628 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 2444 mSDsluCounter, 10148 mSDsCounter, 0 mSdLazyCounter, 3538 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2444 SdHoareTripleChecker+Valid, 10678 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:07,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2444 Valid, 10678 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3538 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 16:55:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56355 states. [2022-03-03 16:55:08,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56355 to 39776. [2022-03-03 16:55:08,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39776 states, 39775 states have (on average 2.794644877435575) internal successors, (111157), 39775 states have internal predecessors, (111157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39776 states to 39776 states and 111157 transitions. [2022-03-03 16:55:08,560 INFO L78 Accepts]: Start accepts. Automaton has 39776 states and 111157 transitions. Word has length 231 [2022-03-03 16:55:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:08,561 INFO L470 AbstractCegarLoop]: Abstraction has 39776 states and 111157 transitions. [2022-03-03 16:55:08,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 39776 states and 111157 transitions. [2022-03-03 16:55:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:08,597 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:08,598 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:08,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-03 16:55:08,598 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:08,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:08,598 INFO L85 PathProgramCache]: Analyzing trace with hash 256912650, now seen corresponding path program 7 times [2022-03-03 16:55:08,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:08,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313548491] [2022-03-03 16:55:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:08,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:09,099 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:09,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:09,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313548491] [2022-03-03 16:55:09,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313548491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:09,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:09,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:55:09,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497363302] [2022-03-03 16:55:09,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:09,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:55:09,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:09,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:55:09,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:55:09,101 INFO L87 Difference]: Start difference. First operand 39776 states and 111157 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:11,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:11,730 INFO L93 Difference]: Finished difference Result 55069 states and 152952 transitions. [2022-03-03 16:55:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 16:55:11,730 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:11,836 INFO L225 Difference]: With dead ends: 55069 [2022-03-03 16:55:11,836 INFO L226 Difference]: Without dead ends: 55069 [2022-03-03 16:55:11,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=922, Invalid=2984, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 16:55:11,836 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1831 mSDsluCounter, 5138 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 5494 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:11,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1831 Valid, 5494 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 16:55:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55069 states. [2022-03-03 16:55:12,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55069 to 39784. [2022-03-03 16:55:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39784 states, 39783 states have (on average 2.7949375361335242) internal successors, (111191), 39783 states have internal predecessors, (111191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:12,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39784 states to 39784 states and 111191 transitions. [2022-03-03 16:55:12,607 INFO L78 Accepts]: Start accepts. Automaton has 39784 states and 111191 transitions. Word has length 231 [2022-03-03 16:55:12,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:12,607 INFO L470 AbstractCegarLoop]: Abstraction has 39784 states and 111191 transitions. [2022-03-03 16:55:12,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:12,607 INFO L276 IsEmpty]: Start isEmpty. Operand 39784 states and 111191 transitions. [2022-03-03 16:55:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:12,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:12,651 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:12,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-03 16:55:12,652 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2077216704, now seen corresponding path program 8 times [2022-03-03 16:55:12,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:12,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945062783] [2022-03-03 16:55:12,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:12,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:13,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:13,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945062783] [2022-03-03 16:55:13,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945062783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:13,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:13,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:55:13,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643993601] [2022-03-03 16:55:13,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:13,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:55:13,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:13,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:55:13,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:55:13,254 INFO L87 Difference]: Start difference. First operand 39784 states and 111191 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:20,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:20,262 INFO L93 Difference]: Finished difference Result 57442 states and 159297 transitions. [2022-03-03 16:55:20,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-03-03 16:55:20,262 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:20,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:20,371 INFO L225 Difference]: With dead ends: 57442 [2022-03-03 16:55:20,371 INFO L226 Difference]: Without dead ends: 57442 [2022-03-03 16:55:20,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6614 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=4673, Invalid=17677, Unknown=0, NotChecked=0, Total=22350 [2022-03-03 16:55:20,372 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 2474 mSDsluCounter, 9570 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 10139 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:20,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2474 Valid, 10139 Invalid, 3558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-03 16:55:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57442 states. [2022-03-03 16:55:21,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57442 to 39780. [2022-03-03 16:55:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39780 states, 39779 states have (on average 2.79474094371402) internal successors, (111172), 39779 states have internal predecessors, (111172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39780 states to 39780 states and 111172 transitions. [2022-03-03 16:55:21,203 INFO L78 Accepts]: Start accepts. Automaton has 39780 states and 111172 transitions. Word has length 231 [2022-03-03 16:55:21,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:21,203 INFO L470 AbstractCegarLoop]: Abstraction has 39780 states and 111172 transitions. [2022-03-03 16:55:21,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:21,203 INFO L276 IsEmpty]: Start isEmpty. Operand 39780 states and 111172 transitions. [2022-03-03 16:55:21,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:21,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:21,247 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:21,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-03 16:55:21,247 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:21,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:21,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1971638604, now seen corresponding path program 9 times [2022-03-03 16:55:21,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:21,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640064669] [2022-03-03 16:55:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:21,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:21,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:21,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640064669] [2022-03-03 16:55:21,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640064669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:21,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:21,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:55:21,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553833914] [2022-03-03 16:55:21,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:21,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:55:21,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:21,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:55:21,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:55:21,921 INFO L87 Difference]: Start difference. First operand 39780 states and 111172 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:24,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:24,442 INFO L93 Difference]: Finished difference Result 55568 states and 154218 transitions. [2022-03-03 16:55:24,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 16:55:24,442 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:24,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:24,551 INFO L225 Difference]: With dead ends: 55568 [2022-03-03 16:55:24,551 INFO L226 Difference]: Without dead ends: 55568 [2022-03-03 16:55:24,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=908, Invalid=2998, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 16:55:24,552 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1856 mSDsluCounter, 5584 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 5936 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:24,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1856 Valid, 5936 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 16:55:24,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55568 states. [2022-03-03 16:55:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55568 to 39728. [2022-03-03 16:55:25,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39728 states, 39727 states have (on average 2.7942960706824076) internal successors, (111009), 39727 states have internal predecessors, (111009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39728 states to 39728 states and 111009 transitions. [2022-03-03 16:55:25,375 INFO L78 Accepts]: Start accepts. Automaton has 39728 states and 111009 transitions. Word has length 231 [2022-03-03 16:55:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:25,375 INFO L470 AbstractCegarLoop]: Abstraction has 39728 states and 111009 transitions. [2022-03-03 16:55:25,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:25,375 INFO L276 IsEmpty]: Start isEmpty. Operand 39728 states and 111009 transitions. [2022-03-03 16:55:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:25,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:25,413 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:25,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-03 16:55:25,413 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 533439422, now seen corresponding path program 10 times [2022-03-03 16:55:25,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:25,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578478137] [2022-03-03 16:55:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:25,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:26,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:26,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578478137] [2022-03-03 16:55:26,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578478137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:26,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:26,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:55:26,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652223574] [2022-03-03 16:55:26,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:26,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:55:26,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:26,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:55:26,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:55:26,066 INFO L87 Difference]: Start difference. First operand 39728 states and 111009 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:31,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:31,280 INFO L93 Difference]: Finished difference Result 62497 states and 172477 transitions. [2022-03-03 16:55:31,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-03 16:55:31,280 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:31,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:31,396 INFO L225 Difference]: With dead ends: 62497 [2022-03-03 16:55:31,397 INFO L226 Difference]: Without dead ends: 62025 [2022-03-03 16:55:31,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5891 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4290, Invalid=15450, Unknown=0, NotChecked=0, Total=19740 [2022-03-03 16:55:31,398 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 2296 mSDsluCounter, 7887 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 8323 SdHoareTripleChecker+Invalid, 3086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:31,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2296 Valid, 8323 Invalid, 3086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 16:55:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62025 states. [2022-03-03 16:55:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62025 to 39752. [2022-03-03 16:55:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39752 states, 39751 states have (on average 2.794369952957158) internal successors, (111079), 39751 states have internal predecessors, (111079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39752 states to 39752 states and 111079 transitions. [2022-03-03 16:55:32,390 INFO L78 Accepts]: Start accepts. Automaton has 39752 states and 111079 transitions. Word has length 231 [2022-03-03 16:55:32,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:32,390 INFO L470 AbstractCegarLoop]: Abstraction has 39752 states and 111079 transitions. [2022-03-03 16:55:32,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 39752 states and 111079 transitions. [2022-03-03 16:55:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:32,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:32,424 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:32,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-03 16:55:32,425 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:32,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:32,425 INFO L85 PathProgramCache]: Analyzing trace with hash -614085760, now seen corresponding path program 11 times [2022-03-03 16:55:32,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:32,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034272171] [2022-03-03 16:55:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:32,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:33,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:33,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034272171] [2022-03-03 16:55:33,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034272171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:33,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:33,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:55:33,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975690365] [2022-03-03 16:55:33,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:33,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:55:33,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:33,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:55:33,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:55:33,114 INFO L87 Difference]: Start difference. First operand 39752 states and 111079 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:41,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:41,595 INFO L93 Difference]: Finished difference Result 63469 states and 175453 transitions. [2022-03-03 16:55:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-03 16:55:41,595 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:41,722 INFO L225 Difference]: With dead ends: 63469 [2022-03-03 16:55:41,723 INFO L226 Difference]: Without dead ends: 62944 [2022-03-03 16:55:41,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7692 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=5382, Invalid=19424, Unknown=0, NotChecked=0, Total=24806 [2022-03-03 16:55:41,724 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 2730 mSDsluCounter, 7475 mSDsCounter, 0 mSdLazyCounter, 3032 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2730 SdHoareTripleChecker+Valid, 7957 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:41,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2730 Valid, 7957 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3032 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 16:55:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62944 states. [2022-03-03 16:55:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62944 to 39808. [2022-03-03 16:55:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39808 states, 39807 states have (on average 2.79430753385083) internal successors, (111233), 39807 states have internal predecessors, (111233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39808 states to 39808 states and 111233 transitions. [2022-03-03 16:55:42,702 INFO L78 Accepts]: Start accepts. Automaton has 39808 states and 111233 transitions. Word has length 231 [2022-03-03 16:55:42,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:42,702 INFO L470 AbstractCegarLoop]: Abstraction has 39808 states and 111233 transitions. [2022-03-03 16:55:42,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 39808 states and 111233 transitions. [2022-03-03 16:55:42,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:42,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:42,744 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:42,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-03 16:55:42,744 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:42,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:42,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1751947262, now seen corresponding path program 12 times [2022-03-03 16:55:42,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:42,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494950497] [2022-03-03 16:55:42,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:42,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:43,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:43,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494950497] [2022-03-03 16:55:43,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494950497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:43,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:43,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:55:43,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030810374] [2022-03-03 16:55:43,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:43,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:55:43,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:43,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:55:43,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:55:43,336 INFO L87 Difference]: Start difference. First operand 39808 states and 111233 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:45,821 INFO L93 Difference]: Finished difference Result 51129 states and 141861 transitions. [2022-03-03 16:55:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 16:55:45,822 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:45,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:45,920 INFO L225 Difference]: With dead ends: 51129 [2022-03-03 16:55:45,921 INFO L226 Difference]: Without dead ends: 51129 [2022-03-03 16:55:45,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=976, Invalid=3184, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 16:55:45,921 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1679 mSDsluCounter, 5022 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:45,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1679 Valid, 5353 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 16:55:45,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51129 states. [2022-03-03 16:55:46,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51129 to 39792. [2022-03-03 16:55:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:46,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-03-03 16:55:46,674 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-03-03 16:55:46,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:46,675 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-03-03 16:55:46,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:46,675 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-03-03 16:55:46,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:46,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:46,713 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:46,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-03 16:55:46,713 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:46,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:46,714 INFO L85 PathProgramCache]: Analyzing trace with hash -324715772, now seen corresponding path program 13 times [2022-03-03 16:55:46,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:46,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360442109] [2022-03-03 16:55:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:46,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:47,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:47,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360442109] [2022-03-03 16:55:47,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360442109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:47,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:47,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:55:47,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682683533] [2022-03-03 16:55:47,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:47,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:55:47,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:55:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:55:47,483 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:55,273 INFO L93 Difference]: Finished difference Result 69884 states and 192760 transitions. [2022-03-03 16:55:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-03 16:55:55,274 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:55,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:55,431 INFO L225 Difference]: With dead ends: 69884 [2022-03-03 16:55:55,431 INFO L226 Difference]: Without dead ends: 69884 [2022-03-03 16:55:55,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6913 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=4664, Invalid=18288, Unknown=0, NotChecked=0, Total=22952 [2022-03-03 16:55:55,433 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2237 mSDsluCounter, 9703 mSDsCounter, 0 mSdLazyCounter, 3819 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 3844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:55,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2237 Valid, 10235 Invalid, 3844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3819 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-03 16:55:55,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69884 states. [2022-03-03 16:55:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69884 to 39796. [2022-03-03 16:55:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39796 states, 39795 states have (on average 2.7944214097248397) internal successors, (111204), 39795 states have internal predecessors, (111204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111204 transitions. [2022-03-03 16:55:56,542 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111204 transitions. Word has length 231 [2022-03-03 16:55:56,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:55:56,543 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111204 transitions. [2022-03-03 16:55:56,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111204 transitions. [2022-03-03 16:55:56,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:55:56,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:55:56,579 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:55:56,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-03 16:55:56,579 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:55:56,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:55:56,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1495588282, now seen corresponding path program 14 times [2022-03-03 16:55:56,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:55:56,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411818039] [2022-03-03 16:55:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:55:56,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:55:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:55:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:55:57,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:55:57,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411818039] [2022-03-03 16:55:57,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411818039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:55:57,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:55:57,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:55:57,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330223381] [2022-03-03 16:55:57,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:55:57,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:55:57,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:55:57,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:55:57,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:55:57,280 INFO L87 Difference]: Start difference. First operand 39796 states and 111204 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:55:59,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:55:59,109 INFO L93 Difference]: Finished difference Result 51601 states and 143205 transitions. [2022-03-03 16:55:59,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 16:55:59,109 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:55:59,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:55:59,367 INFO L225 Difference]: With dead ends: 51601 [2022-03-03 16:55:59,367 INFO L226 Difference]: Without dead ends: 51601 [2022-03-03 16:55:59,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=875, Invalid=2907, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 16:55:59,368 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1966 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:55:59,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1966 Valid, 4431 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 16:55:59,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51601 states. [2022-03-03 16:55:59,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51601 to 39792. [2022-03-03 16:56:00,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-03-03 16:56:00,103 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-03-03 16:56:00,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:00,104 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-03-03 16:56:00,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:00,104 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-03-03 16:56:00,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:00,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:00,142 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:00,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-03 16:56:00,142 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:00,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:00,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1109678508, now seen corresponding path program 15 times [2022-03-03 16:56:00,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:00,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727180770] [2022-03-03 16:56:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:00,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:00,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727180770] [2022-03-03 16:56:00,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727180770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:00,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:00,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:56:00,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966213339] [2022-03-03 16:56:00,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:00,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:56:00,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:56:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:56:00,623 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:08,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:08,000 INFO L93 Difference]: Finished difference Result 70136 states and 193457 transitions. [2022-03-03 16:56:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-03 16:56:08,000 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:08,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:08,177 INFO L225 Difference]: With dead ends: 70136 [2022-03-03 16:56:08,177 INFO L226 Difference]: Without dead ends: 70136 [2022-03-03 16:56:08,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8593 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=5525, Invalid=20881, Unknown=0, NotChecked=0, Total=26406 [2022-03-03 16:56:08,178 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 2096 mSDsluCounter, 8350 mSDsCounter, 0 mSdLazyCounter, 3293 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 8871 SdHoareTripleChecker+Invalid, 3317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:08,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2096 Valid, 8871 Invalid, 3317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3293 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 16:56:08,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70136 states. [2022-03-03 16:56:09,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70136 to 39800. [2022-03-03 16:56:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39800 states, 39799 states have (on average 2.7945174501871906) internal successors, (111219), 39799 states have internal predecessors, (111219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:09,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39800 states to 39800 states and 111219 transitions. [2022-03-03 16:56:09,207 INFO L78 Accepts]: Start accepts. Automaton has 39800 states and 111219 transitions. Word has length 231 [2022-03-03 16:56:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:09,207 INFO L470 AbstractCegarLoop]: Abstraction has 39800 states and 111219 transitions. [2022-03-03 16:56:09,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand 39800 states and 111219 transitions. [2022-03-03 16:56:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:09,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:09,246 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:09,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-03 16:56:09,246 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:09,247 INFO L85 PathProgramCache]: Analyzing trace with hash 710625546, now seen corresponding path program 16 times [2022-03-03 16:56:09,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:09,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160634029] [2022-03-03 16:56:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:09,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:09,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:09,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160634029] [2022-03-03 16:56:09,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160634029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:09,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:09,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:56:09,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841029642] [2022-03-03 16:56:09,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:09,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:56:09,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:09,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:56:09,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:56:09,772 INFO L87 Difference]: Start difference. First operand 39800 states and 111219 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:12,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:12,453 INFO L93 Difference]: Finished difference Result 52469 states and 145596 transitions. [2022-03-03 16:56:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 16:56:12,453 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:12,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:12,555 INFO L225 Difference]: With dead ends: 52469 [2022-03-03 16:56:12,555 INFO L226 Difference]: Without dead ends: 52469 [2022-03-03 16:56:12,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 16:56:12,556 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1591 mSDsluCounter, 5541 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 5868 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:12,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 5868 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 16:56:12,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52469 states. [2022-03-03 16:56:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52469 to 39796. [2022-03-03 16:56:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39796 states, 39795 states have (on average 2.7943208945847466) internal successors, (111200), 39795 states have internal predecessors, (111200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:13,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111200 transitions. [2022-03-03 16:56:13,459 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111200 transitions. Word has length 231 [2022-03-03 16:56:13,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:13,459 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111200 transitions. [2022-03-03 16:56:13,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:13,459 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111200 transitions. [2022-03-03 16:56:13,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:13,498 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:13,498 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:13,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-03 16:56:13,498 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:13,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:13,498 INFO L85 PathProgramCache]: Analyzing trace with hash 956737534, now seen corresponding path program 17 times [2022-03-03 16:56:13,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:13,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459345175] [2022-03-03 16:56:13,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:13,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:14,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:14,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459345175] [2022-03-03 16:56:14,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459345175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:14,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:14,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-03 16:56:14,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531301142] [2022-03-03 16:56:14,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:14,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-03 16:56:14,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:14,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-03 16:56:14,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-03-03 16:56:14,060 INFO L87 Difference]: Start difference. First operand 39796 states and 111200 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:19,301 INFO L93 Difference]: Finished difference Result 53805 states and 148963 transitions. [2022-03-03 16:56:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-03 16:56:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:19,409 INFO L225 Difference]: With dead ends: 53805 [2022-03-03 16:56:19,409 INFO L226 Difference]: Without dead ends: 53805 [2022-03-03 16:56:19,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5994 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4361, Invalid=15661, Unknown=0, NotChecked=0, Total=20022 [2022-03-03 16:56:19,411 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2061 mSDsluCounter, 9501 mSDsCounter, 0 mSdLazyCounter, 3682 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 9952 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:19,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2061 Valid, 9952 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3682 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 16:56:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53805 states. [2022-03-03 16:56:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53805 to 39792. [2022-03-03 16:56:20,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-03-03 16:56:20,310 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-03-03 16:56:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:20,310 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-03-03 16:56:20,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-03-03 16:56:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:20,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:20,346 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:20,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-03 16:56:20,346 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:20,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 245365692, now seen corresponding path program 18 times [2022-03-03 16:56:20,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:20,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506911273] [2022-03-03 16:56:20,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:20,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:20,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506911273] [2022-03-03 16:56:20,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506911273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:20,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:20,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:56:20,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517113439] [2022-03-03 16:56:20,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:20,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:56:20,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:20,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:56:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:56:20,727 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:26,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:26,447 INFO L93 Difference]: Finished difference Result 62322 states and 172096 transitions. [2022-03-03 16:56:26,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-03 16:56:26,447 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:26,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:26,569 INFO L225 Difference]: With dead ends: 62322 [2022-03-03 16:56:26,569 INFO L226 Difference]: Without dead ends: 61673 [2022-03-03 16:56:26,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5769 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4019, Invalid=16287, Unknown=0, NotChecked=0, Total=20306 [2022-03-03 16:56:26,570 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 2602 mSDsluCounter, 11360 mSDsCounter, 0 mSdLazyCounter, 4121 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 11847 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:26,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2602 Valid, 11847 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4121 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-03 16:56:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61673 states. [2022-03-03 16:56:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61673 to 40464. [2022-03-03 16:56:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40464 states, 40463 states have (on average 2.796357165805798) internal successors, (113149), 40463 states have internal predecessors, (113149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:27,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40464 states to 40464 states and 113149 transitions. [2022-03-03 16:56:27,496 INFO L78 Accepts]: Start accepts. Automaton has 40464 states and 113149 transitions. Word has length 231 [2022-03-03 16:56:27,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:27,497 INFO L470 AbstractCegarLoop]: Abstraction has 40464 states and 113149 transitions. [2022-03-03 16:56:27,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 40464 states and 113149 transitions. [2022-03-03 16:56:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:27,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:27,536 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:27,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-03 16:56:27,537 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:27,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash 933215832, now seen corresponding path program 19 times [2022-03-03 16:56:27,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:27,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846570333] [2022-03-03 16:56:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:27,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:28,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:28,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846570333] [2022-03-03 16:56:28,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846570333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:28,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:28,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:56:28,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832222021] [2022-03-03 16:56:28,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:28,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:56:28,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:56:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:56:28,121 INFO L87 Difference]: Start difference. First operand 40464 states and 113149 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:33,269 INFO L93 Difference]: Finished difference Result 80484 states and 221756 transitions. [2022-03-03 16:56:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-03 16:56:33,269 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:33,445 INFO L225 Difference]: With dead ends: 80484 [2022-03-03 16:56:33,445 INFO L226 Difference]: Without dead ends: 80484 [2022-03-03 16:56:33,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6554 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4399, Invalid=17951, Unknown=0, NotChecked=0, Total=22350 [2022-03-03 16:56:33,447 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 2738 mSDsluCounter, 8748 mSDsCounter, 0 mSdLazyCounter, 3470 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2738 SdHoareTripleChecker+Valid, 9296 SdHoareTripleChecker+Invalid, 3497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:33,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2738 Valid, 9296 Invalid, 3497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3470 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 16:56:33,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80484 states. [2022-03-03 16:56:34,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80484 to 40472. [2022-03-03 16:56:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40472 states, 40471 states have (on average 2.7966445108843367) internal successors, (113183), 40471 states have internal predecessors, (113183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113183 transitions. [2022-03-03 16:56:34,557 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113183 transitions. Word has length 231 [2022-03-03 16:56:34,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:34,557 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113183 transitions. [2022-03-03 16:56:34,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113183 transitions. [2022-03-03 16:56:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:34,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:34,596 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:34,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-03 16:56:34,596 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:34,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1541447410, now seen corresponding path program 20 times [2022-03-03 16:56:34,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:34,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428700568] [2022-03-03 16:56:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:34,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:35,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:35,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428700568] [2022-03-03 16:56:35,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428700568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:35,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:35,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:56:35,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622687450] [2022-03-03 16:56:35,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:35,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:56:35,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:35,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:56:35,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:56:35,160 INFO L87 Difference]: Start difference. First operand 40472 states and 113183 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:41,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:41,889 INFO L93 Difference]: Finished difference Result 63265 states and 175101 transitions. [2022-03-03 16:56:41,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-03-03 16:56:41,889 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:41,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:42,034 INFO L225 Difference]: With dead ends: 63265 [2022-03-03 16:56:42,034 INFO L226 Difference]: Without dead ends: 63265 [2022-03-03 16:56:42,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6455 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=4677, Invalid=17673, Unknown=0, NotChecked=0, Total=22350 [2022-03-03 16:56:42,035 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 2666 mSDsluCounter, 9557 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 10105 SdHoareTripleChecker+Invalid, 3707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:42,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2666 Valid, 10105 Invalid, 3707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-03 16:56:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63265 states. [2022-03-03 16:56:42,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63265 to 40468. [2022-03-03 16:56:42,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40468 states, 40467 states have (on average 2.7964514295598883) internal successors, (113164), 40467 states have internal predecessors, (113164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:43,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40468 states to 40468 states and 113164 transitions. [2022-03-03 16:56:43,082 INFO L78 Accepts]: Start accepts. Automaton has 40468 states and 113164 transitions. Word has length 231 [2022-03-03 16:56:43,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:43,084 INFO L470 AbstractCegarLoop]: Abstraction has 40468 states and 113164 transitions. [2022-03-03 16:56:43,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:43,084 INFO L276 IsEmpty]: Start isEmpty. Operand 40468 states and 113164 transitions. [2022-03-03 16:56:43,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:43,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:43,131 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:43,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-03 16:56:43,131 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:43,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:43,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1295335422, now seen corresponding path program 21 times [2022-03-03 16:56:43,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:43,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519526328] [2022-03-03 16:56:43,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:43,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:43,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:43,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519526328] [2022-03-03 16:56:43,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519526328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:43,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:43,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:56:43,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850023859] [2022-03-03 16:56:43,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:43,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:56:43,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:43,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:56:43,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:56:43,576 INFO L87 Difference]: Start difference. First operand 40468 states and 113164 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:45,434 INFO L93 Difference]: Finished difference Result 61451 states and 170167 transitions. [2022-03-03 16:56:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 16:56:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:45,553 INFO L225 Difference]: With dead ends: 61451 [2022-03-03 16:56:45,554 INFO L226 Difference]: Without dead ends: 61451 [2022-03-03 16:56:45,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=928, Invalid=2978, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 16:56:45,554 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1815 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 4917 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:45,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1815 Valid, 4917 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:56:45,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61451 states. [2022-03-03 16:56:46,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61451 to 40416. [2022-03-03 16:56:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40416 states, 40415 states have (on average 2.7960163305703327) internal successors, (113001), 40415 states have internal predecessors, (113001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40416 states to 40416 states and 113001 transitions. [2022-03-03 16:56:46,462 INFO L78 Accepts]: Start accepts. Automaton has 40416 states and 113001 transitions. Word has length 231 [2022-03-03 16:56:46,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:46,462 INFO L470 AbstractCegarLoop]: Abstraction has 40416 states and 113001 transitions. [2022-03-03 16:56:46,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand 40416 states and 113001 transitions. [2022-03-03 16:56:46,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:46,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:46,506 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:46,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-03 16:56:46,506 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1209742604, now seen corresponding path program 22 times [2022-03-03 16:56:46,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:46,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457362478] [2022-03-03 16:56:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:47,381 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:47,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:47,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457362478] [2022-03-03 16:56:47,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457362478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:47,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:47,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:56:47,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280986971] [2022-03-03 16:56:47,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:47,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:56:47,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:47,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:56:47,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:56:47,383 INFO L87 Difference]: Start difference. First operand 40416 states and 113001 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:56,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:56:56,145 INFO L93 Difference]: Finished difference Result 75697 states and 208811 transitions. [2022-03-03 16:56:56,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-03 16:56:56,145 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:56:56,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:56:56,299 INFO L225 Difference]: With dead ends: 75697 [2022-03-03 16:56:56,299 INFO L226 Difference]: Without dead ends: 75169 [2022-03-03 16:56:56,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9203 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=5934, Invalid=22796, Unknown=0, NotChecked=0, Total=28730 [2022-03-03 16:56:56,301 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2702 mSDsluCounter, 9399 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2702 SdHoareTripleChecker+Valid, 9887 SdHoareTripleChecker+Invalid, 3864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:56:56,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2702 Valid, 9887 Invalid, 3864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-03 16:56:56,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75169 states. [2022-03-03 16:56:57,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75169 to 40440. [2022-03-03 16:56:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40440 states, 40439 states have (on average 2.7960879349143153) internal successors, (113071), 40439 states have internal predecessors, (113071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:57,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40440 states to 40440 states and 113071 transitions. [2022-03-03 16:56:57,514 INFO L78 Accepts]: Start accepts. Automaton has 40440 states and 113071 transitions. Word has length 231 [2022-03-03 16:56:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:56:57,514 INFO L470 AbstractCegarLoop]: Abstraction has 40440 states and 113071 transitions. [2022-03-03 16:56:57,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:56:57,514 INFO L276 IsEmpty]: Start isEmpty. Operand 40440 states and 113071 transitions. [2022-03-03 16:56:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:56:57,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:56:57,561 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:56:57,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-03 16:56:57,561 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:56:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:56:57,562 INFO L85 PathProgramCache]: Analyzing trace with hash 62217422, now seen corresponding path program 23 times [2022-03-03 16:56:57,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:56:57,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021177659] [2022-03-03 16:56:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:56:57,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:56:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:56:58,131 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:56:58,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:56:58,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021177659] [2022-03-03 16:56:58,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021177659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:56:58,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:56:58,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:56:58,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261026594] [2022-03-03 16:56:58,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:56:58,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:56:58,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:56:58,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:56:58,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:56:58,132 INFO L87 Difference]: Start difference. First operand 40440 states and 113071 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:05,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:05,514 INFO L93 Difference]: Finished difference Result 77464 states and 213962 transitions. [2022-03-03 16:57:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-03-03 16:57:05,514 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:05,680 INFO L225 Difference]: With dead ends: 77464 [2022-03-03 16:57:05,681 INFO L226 Difference]: Without dead ends: 76911 [2022-03-03 16:57:05,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9769 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=6262, Invalid=22808, Unknown=0, NotChecked=0, Total=29070 [2022-03-03 16:57:05,682 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 2718 mSDsluCounter, 7128 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:05,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2718 Valid, 7569 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 16:57:05,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76911 states. [2022-03-03 16:57:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76911 to 40496. [2022-03-03 16:57:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40496 states, 40495 states have (on average 2.7960242005185827) internal successors, (113225), 40495 states have internal predecessors, (113225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:06,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40496 states to 40496 states and 113225 transitions. [2022-03-03 16:57:06,820 INFO L78 Accepts]: Start accepts. Automaton has 40496 states and 113225 transitions. Word has length 231 [2022-03-03 16:57:06,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:06,821 INFO L470 AbstractCegarLoop]: Abstraction has 40496 states and 113225 transitions. [2022-03-03 16:57:06,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 40496 states and 113225 transitions. [2022-03-03 16:57:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:06,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:06,864 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:06,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-03 16:57:06,864 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1866716852, now seen corresponding path program 24 times [2022-03-03 16:57:06,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:06,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499726641] [2022-03-03 16:57:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:07,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:07,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499726641] [2022-03-03 16:57:07,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499726641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:07,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:07,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:57:07,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455388231] [2022-03-03 16:57:07,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:07,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:57:07,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:07,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:57:07,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:57:07,444 INFO L87 Difference]: Start difference. First operand 40496 states and 113225 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:12,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:12,307 INFO L93 Difference]: Finished difference Result 88670 states and 246537 transitions. [2022-03-03 16:57:12,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-03 16:57:12,307 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:12,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:12,491 INFO L225 Difference]: With dead ends: 88670 [2022-03-03 16:57:12,491 INFO L226 Difference]: Without dead ends: 88670 [2022-03-03 16:57:12,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4714 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3611, Invalid=12901, Unknown=0, NotChecked=0, Total=16512 [2022-03-03 16:57:12,493 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 2673 mSDsluCounter, 6416 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2673 SdHoareTripleChecker+Valid, 6835 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:12,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2673 Valid, 6835 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 16:57:12,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88670 states. [2022-03-03 16:57:13,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88670 to 40424. [2022-03-03 16:57:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40424 states, 40423 states have (on average 2.79610617717636) internal successors, (113027), 40423 states have internal predecessors, (113027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-03-03 16:57:13,747 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-03-03 16:57:13,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:13,748 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-03-03 16:57:13,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-03-03 16:57:13,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:13,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:13,786 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:13,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-03 16:57:13,786 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:13,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:13,787 INFO L85 PathProgramCache]: Analyzing trace with hash 351587410, now seen corresponding path program 25 times [2022-03-03 16:57:13,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:13,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991127099] [2022-03-03 16:57:13,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:13,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:14,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:14,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991127099] [2022-03-03 16:57:14,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991127099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:14,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:14,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:57:14,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929301091] [2022-03-03 16:57:14,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:14,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:57:14,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:57:14,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:57:14,392 INFO L87 Difference]: Start difference. First operand 40424 states and 113027 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:19,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:19,950 INFO L93 Difference]: Finished difference Result 83368 states and 229967 transitions. [2022-03-03 16:57:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-03 16:57:19,950 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:19,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:20,151 INFO L225 Difference]: With dead ends: 83368 [2022-03-03 16:57:20,151 INFO L226 Difference]: Without dead ends: 83368 [2022-03-03 16:57:20,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7741 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5035, Invalid=19457, Unknown=0, NotChecked=0, Total=24492 [2022-03-03 16:57:20,153 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2530 mSDsluCounter, 8063 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 8589 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:20,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2530 Valid, 8589 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-03 16:57:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83368 states. [2022-03-03 16:57:21,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83368 to 40428. [2022-03-03 16:57:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40428 states, 40427 states have (on average 2.7962995028075297) internal successors, (113046), 40427 states have internal predecessors, (113046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-03-03 16:57:21,468 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-03-03 16:57:21,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:21,468 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-03-03 16:57:21,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:21,468 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-03-03 16:57:21,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:21,519 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:21,519 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:21,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-03 16:57:21,520 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:21,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2123075832, now seen corresponding path program 26 times [2022-03-03 16:57:21,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:21,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439892738] [2022-03-03 16:57:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:21,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:22,221 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:22,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:22,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439892738] [2022-03-03 16:57:22,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439892738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:22,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:22,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:57:22,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024890346] [2022-03-03 16:57:22,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:22,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:57:22,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:22,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:57:22,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:57:22,222 INFO L87 Difference]: Start difference. First operand 40428 states and 113046 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:28,663 INFO L93 Difference]: Finished difference Result 64249 states and 177999 transitions. [2022-03-03 16:57:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-03 16:57:28,663 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:28,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:28,903 INFO L225 Difference]: With dead ends: 64249 [2022-03-03 16:57:28,903 INFO L226 Difference]: Without dead ends: 64249 [2022-03-03 16:57:28,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7970 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5464, Invalid=20618, Unknown=0, NotChecked=0, Total=26082 [2022-03-03 16:57:28,904 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 2515 mSDsluCounter, 9587 mSDsCounter, 0 mSdLazyCounter, 3733 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 10105 SdHoareTripleChecker+Invalid, 3745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:28,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2515 Valid, 10105 Invalid, 3745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3733 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-03 16:57:28,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64249 states. [2022-03-03 16:57:29,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64249 to 40420. [2022-03-03 16:57:29,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40420 states, 40419 states have (on average 2.7960117766396992) internal successors, (113012), 40419 states have internal predecessors, (113012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40420 states to 40420 states and 113012 transitions. [2022-03-03 16:57:29,966 INFO L78 Accepts]: Start accepts. Automaton has 40420 states and 113012 transitions. Word has length 231 [2022-03-03 16:57:29,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:29,966 INFO L470 AbstractCegarLoop]: Abstraction has 40420 states and 113012 transitions. [2022-03-03 16:57:29,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:29,966 INFO L276 IsEmpty]: Start isEmpty. Operand 40420 states and 113012 transitions. [2022-03-03 16:57:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:30,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:30,008 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:30,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-03 16:57:30,008 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:30,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:30,009 INFO L85 PathProgramCache]: Analyzing trace with hash -433375326, now seen corresponding path program 27 times [2022-03-03 16:57:30,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:30,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067170342] [2022-03-03 16:57:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:30,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:30,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:30,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067170342] [2022-03-03 16:57:30,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067170342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:30,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:30,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-03 16:57:30,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098197259] [2022-03-03 16:57:30,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:30,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 16:57:30,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:30,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 16:57:30,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:57:30,491 INFO L87 Difference]: Start difference. First operand 40420 states and 113012 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:32,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:32,129 INFO L93 Difference]: Finished difference Result 63408 states and 175899 transitions. [2022-03-03 16:57:32,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 16:57:32,130 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:32,257 INFO L225 Difference]: With dead ends: 63408 [2022-03-03 16:57:32,257 INFO L226 Difference]: Without dead ends: 63408 [2022-03-03 16:57:32,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1046, Invalid=3244, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 16:57:32,259 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1991 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1991 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:32,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1991 Valid, 4267 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:57:32,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63408 states. [2022-03-03 16:57:33,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63408 to 40428. [2022-03-03 16:57:33,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40428 states, 40427 states have (on average 2.7962995028075297) internal successors, (113046), 40427 states have internal predecessors, (113046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-03-03 16:57:33,167 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-03-03 16:57:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:33,167 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-03-03 16:57:33,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-03-03 16:57:33,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:33,205 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:33,205 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:33,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-03 16:57:33,205 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:33,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:33,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1386928728, now seen corresponding path program 28 times [2022-03-03 16:57:33,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:33,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016931793] [2022-03-03 16:57:33,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:33,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:33,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:33,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016931793] [2022-03-03 16:57:33,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016931793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:33,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:33,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-03 16:57:33,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112260609] [2022-03-03 16:57:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:33,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-03 16:57:33,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-03 16:57:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-03-03 16:57:33,814 INFO L87 Difference]: Start difference. First operand 40428 states and 113046 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:39,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:39,379 INFO L93 Difference]: Finished difference Result 65693 states and 182026 transitions. [2022-03-03 16:57:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-03 16:57:39,379 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:39,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:39,530 INFO L225 Difference]: With dead ends: 65693 [2022-03-03 16:57:39,530 INFO L226 Difference]: Without dead ends: 65693 [2022-03-03 16:57:39,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8306 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5687, Invalid=20719, Unknown=0, NotChecked=0, Total=26406 [2022-03-03 16:57:39,532 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 2566 mSDsluCounter, 7918 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2566 SdHoareTripleChecker+Valid, 8450 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:39,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2566 Valid, 8450 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 16:57:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65693 states. [2022-03-03 16:57:40,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65693 to 40424. [2022-03-03 16:57:40,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40424 states, 40423 states have (on average 2.79610617717636) internal successors, (113027), 40423 states have internal predecessors, (113027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-03-03 16:57:40,471 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-03-03 16:57:40,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:40,471 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-03-03 16:57:40,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-03-03 16:57:40,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:40,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:40,510 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:40,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-03 16:57:40,510 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:40,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1633040716, now seen corresponding path program 29 times [2022-03-03 16:57:40,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:40,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669520359] [2022-03-03 16:57:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:41,189 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:41,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:41,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669520359] [2022-03-03 16:57:41,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669520359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:41,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:41,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-03 16:57:41,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853481893] [2022-03-03 16:57:41,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:41,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-03 16:57:41,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:41,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-03 16:57:41,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-03-03 16:57:41,190 INFO L87 Difference]: Start difference. First operand 40424 states and 113027 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:46,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:46,895 INFO L93 Difference]: Finished difference Result 64532 states and 178605 transitions. [2022-03-03 16:57:46,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-03 16:57:46,895 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:46,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:47,036 INFO L225 Difference]: With dead ends: 64532 [2022-03-03 16:57:47,036 INFO L226 Difference]: Without dead ends: 64532 [2022-03-03 16:57:47,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9010 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5961, Invalid=22095, Unknown=0, NotChecked=0, Total=28056 [2022-03-03 16:57:47,037 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2410 mSDsluCounter, 9288 mSDsCounter, 0 mSdLazyCounter, 3559 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 9777 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:47,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2410 Valid, 9777 Invalid, 3570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3559 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 16:57:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64532 states. [2022-03-03 16:57:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64532 to 40368. [2022-03-03 16:57:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40368 states, 40367 states have (on average 2.7959719572918473) internal successors, (112865), 40367 states have internal predecessors, (112865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:48,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40368 states to 40368 states and 112865 transitions. [2022-03-03 16:57:48,007 INFO L78 Accepts]: Start accepts. Automaton has 40368 states and 112865 transitions. Word has length 231 [2022-03-03 16:57:48,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:48,008 INFO L470 AbstractCegarLoop]: Abstraction has 40368 states and 112865 transitions. [2022-03-03 16:57:48,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand 40368 states and 112865 transitions. [2022-03-03 16:57:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:48,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:48,051 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:48,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-03 16:57:48,051 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:48,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:48,052 INFO L85 PathProgramCache]: Analyzing trace with hash 222172088, now seen corresponding path program 30 times [2022-03-03 16:57:48,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:48,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120791564] [2022-03-03 16:57:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:48,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:48,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:48,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120791564] [2022-03-03 16:57:48,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120791564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:48,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:48,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:57:48,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153760336] [2022-03-03 16:57:48,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:48,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:57:48,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:48,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:57:48,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:57:48,743 INFO L87 Difference]: Start difference. First operand 40368 states and 112865 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:55,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:57:55,887 INFO L93 Difference]: Finished difference Result 70553 states and 194269 transitions. [2022-03-03 16:57:55,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-03 16:57:55,887 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:57:55,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:57:56,134 INFO L225 Difference]: With dead ends: 70553 [2022-03-03 16:57:56,134 INFO L226 Difference]: Without dead ends: 70081 [2022-03-03 16:57:56,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8163 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4981, Invalid=20779, Unknown=0, NotChecked=0, Total=25760 [2022-03-03 16:57:56,135 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 3087 mSDsluCounter, 8806 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3087 SdHoareTripleChecker+Valid, 9284 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:57:56,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3087 Valid, 9284 Invalid, 3558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-03 16:57:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70081 states. [2022-03-03 16:57:56,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70081 to 40620. [2022-03-03 16:57:56,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40620 states, 40619 states have (on average 2.797065412737881) internal successors, (113614), 40619 states have internal predecessors, (113614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40620 states to 40620 states and 113614 transitions. [2022-03-03 16:57:57,041 INFO L78 Accepts]: Start accepts. Automaton has 40620 states and 113614 transitions. Word has length 231 [2022-03-03 16:57:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:57:57,041 INFO L470 AbstractCegarLoop]: Abstraction has 40620 states and 113614 transitions. [2022-03-03 16:57:57,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:57:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 40620 states and 113614 transitions. [2022-03-03 16:57:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:57:57,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:57:57,080 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:57:57,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-03 16:57:57,080 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:57:57,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:57:57,081 INFO L85 PathProgramCache]: Analyzing trace with hash -925353094, now seen corresponding path program 31 times [2022-03-03 16:57:57,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:57:57,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517149798] [2022-03-03 16:57:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:57:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:57:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:57:57,670 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:57:57,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:57:57,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517149798] [2022-03-03 16:57:57,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517149798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:57:57,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:57:57,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:57:57,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421284774] [2022-03-03 16:57:57,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:57:57,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:57:57,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:57:57,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:57:57,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:57:57,672 INFO L87 Difference]: Start difference. First operand 40620 states and 113614 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:06,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:58:06,691 INFO L93 Difference]: Finished difference Result 74359 states and 204463 transitions. [2022-03-03 16:58:06,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-03-03 16:58:06,712 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:58:06,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:58:06,889 INFO L225 Difference]: With dead ends: 74359 [2022-03-03 16:58:06,889 INFO L226 Difference]: Without dead ends: 73330 [2022-03-03 16:58:06,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16609 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=7995, Invalid=39747, Unknown=0, NotChecked=0, Total=47742 [2022-03-03 16:58:06,891 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 3755 mSDsluCounter, 11056 mSDsCounter, 0 mSdLazyCounter, 4803 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 11634 SdHoareTripleChecker+Invalid, 4841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-03 16:58:06,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3755 Valid, 11634 Invalid, 4841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4803 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-03 16:58:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73330 states. [2022-03-03 16:58:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73330 to 40516. [2022-03-03 16:58:07,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40516 states, 40515 states have (on average 2.79610020979884) internal successors, (113284), 40515 states have internal predecessors, (113284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40516 states to 40516 states and 113284 transitions. [2022-03-03 16:58:08,030 INFO L78 Accepts]: Start accepts. Automaton has 40516 states and 113284 transitions. Word has length 231 [2022-03-03 16:58:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:58:08,030 INFO L470 AbstractCegarLoop]: Abstraction has 40516 states and 113284 transitions. [2022-03-03 16:58:08,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 40516 states and 113284 transitions. [2022-03-03 16:58:08,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:58:08,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:58:08,070 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:58:08,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-03 16:58:08,071 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:58:08,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:58:08,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1440679928, now seen corresponding path program 32 times [2022-03-03 16:58:08,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:58:08,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748226886] [2022-03-03 16:58:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:58:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:58:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:58:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:58:08,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:58:08,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748226886] [2022-03-03 16:58:08,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748226886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:58:08,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:58:08,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:58:08,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224433851] [2022-03-03 16:58:08,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:58:08,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:58:08,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:58:08,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:58:08,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:58:08,427 INFO L87 Difference]: Start difference. First operand 40516 states and 113284 transitions. Second operand has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:09,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:58:09,430 INFO L93 Difference]: Finished difference Result 56312 states and 155881 transitions. [2022-03-03 16:58:09,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:58:09,431 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:58:09,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:58:09,814 INFO L225 Difference]: With dead ends: 56312 [2022-03-03 16:58:09,814 INFO L226 Difference]: Without dead ends: 56312 [2022-03-03 16:58:09,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=444, Invalid=1362, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 16:58:09,814 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1319 mSDsluCounter, 3486 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 3838 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:58:09,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 3838 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:58:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56312 states. [2022-03-03 16:58:10,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56312 to 40520. [2022-03-03 16:58:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40520 states, 40519 states have (on average 2.795996939707298) internal successors, (113291), 40519 states have internal predecessors, (113291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-03-03 16:58:10,620 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-03-03 16:58:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:58:10,620 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-03-03 16:58:10,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:10,621 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-03-03 16:58:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:58:10,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:58:10,660 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:58:10,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-03 16:58:10,660 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:58:10,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:58:10,660 INFO L85 PathProgramCache]: Analyzing trace with hash 544713298, now seen corresponding path program 33 times [2022-03-03 16:58:10,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:58:10,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851672935] [2022-03-03 16:58:10,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:58:10,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:58:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:58:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:58:11,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:58:11,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851672935] [2022-03-03 16:58:11,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851672935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:58:11,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:58:11,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:58:11,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120466475] [2022-03-03 16:58:11,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:58:11,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:58:11,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:58:11,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:58:11,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:58:11,259 INFO L87 Difference]: Start difference. First operand 40520 states and 113291 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:58:18,056 INFO L93 Difference]: Finished difference Result 71077 states and 195830 transitions. [2022-03-03 16:58:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-03 16:58:18,057 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:58:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:58:18,191 INFO L225 Difference]: With dead ends: 71077 [2022-03-03 16:58:18,191 INFO L226 Difference]: Without dead ends: 70605 [2022-03-03 16:58:18,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8484 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=5483, Invalid=20923, Unknown=0, NotChecked=0, Total=26406 [2022-03-03 16:58:18,192 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 2616 mSDsluCounter, 8864 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 9335 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:58:18,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2616 Valid, 9335 Invalid, 3598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-03 16:58:18,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70605 states. [2022-03-03 16:58:19,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70605 to 40540. [2022-03-03 16:58:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40540 states, 40539 states have (on average 2.796072917437529) internal successors, (113350), 40539 states have internal predecessors, (113350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40540 states to 40540 states and 113350 transitions. [2022-03-03 16:58:19,160 INFO L78 Accepts]: Start accepts. Automaton has 40540 states and 113350 transitions. Word has length 231 [2022-03-03 16:58:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:58:19,160 INFO L470 AbstractCegarLoop]: Abstraction has 40540 states and 113350 transitions. [2022-03-03 16:58:19,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 40540 states and 113350 transitions. [2022-03-03 16:58:19,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:58:19,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:58:19,198 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:58:19,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-03 16:58:19,198 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:58:19,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:58:19,198 INFO L85 PathProgramCache]: Analyzing trace with hash -602811884, now seen corresponding path program 34 times [2022-03-03 16:58:19,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:58:19,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392065887] [2022-03-03 16:58:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:58:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:58:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:58:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:58:19,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:58:19,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392065887] [2022-03-03 16:58:19,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392065887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:58:19,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:58:19,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:58:19,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938349104] [2022-03-03 16:58:19,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:58:19,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:58:19,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:58:19,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:58:19,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:58:19,974 INFO L87 Difference]: Start difference. First operand 40540 states and 113350 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:58:28,894 INFO L93 Difference]: Finished difference Result 72360 states and 199618 transitions. [2022-03-03 16:58:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-03-03 16:58:28,894 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:58:28,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:58:29,066 INFO L225 Difference]: With dead ends: 72360 [2022-03-03 16:58:29,067 INFO L226 Difference]: Without dead ends: 71835 [2022-03-03 16:58:29,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11836 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=7203, Invalid=28329, Unknown=0, NotChecked=0, Total=35532 [2022-03-03 16:58:29,068 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 2997 mSDsluCounter, 9333 mSDsCounter, 0 mSdLazyCounter, 4052 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 9829 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 4052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:58:29,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2997 Valid, 9829 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 4052 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-03 16:58:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71835 states. [2022-03-03 16:58:29,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71835 to 40596. [2022-03-03 16:58:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40596 states, 40595 states have (on average 2.796009360758714) internal successors, (113504), 40595 states have internal predecessors, (113504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40596 states to 40596 states and 113504 transitions. [2022-03-03 16:58:30,090 INFO L78 Accepts]: Start accepts. Automaton has 40596 states and 113504 transitions. Word has length 231 [2022-03-03 16:58:30,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:58:30,090 INFO L470 AbstractCegarLoop]: Abstraction has 40596 states and 113504 transitions. [2022-03-03 16:58:30,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 40596 states and 113504 transitions. [2022-03-03 16:58:30,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:58:30,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:58:30,129 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:58:30,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-03 16:58:30,130 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:58:30,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:58:30,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1763221138, now seen corresponding path program 35 times [2022-03-03 16:58:30,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:58:30,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808404849] [2022-03-03 16:58:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:58:30,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:58:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:58:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:58:30,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:58:30,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808404849] [2022-03-03 16:58:30,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808404849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:58:30,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:58:30,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:58:30,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721530747] [2022-03-03 16:58:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:58:30,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:58:30,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:58:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:58:30,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:58:30,611 INFO L87 Difference]: Start difference. First operand 40596 states and 113504 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:58:38,482 INFO L93 Difference]: Finished difference Result 85678 states and 237922 transitions. [2022-03-03 16:58:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-03 16:58:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:58:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:58:38,679 INFO L225 Difference]: With dead ends: 85678 [2022-03-03 16:58:38,679 INFO L226 Difference]: Without dead ends: 85678 [2022-03-03 16:58:38,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10426 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=6416, Invalid=25090, Unknown=0, NotChecked=0, Total=31506 [2022-03-03 16:58:38,680 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 2865 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 3831 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 9734 SdHoareTripleChecker+Invalid, 3855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:58:38,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2865 Valid, 9734 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3831 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-03 16:58:38,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85678 states. [2022-03-03 16:58:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85678 to 40524. [2022-03-03 16:58:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40524 states, 40523 states have (on average 2.7960911087530538) internal successors, (113306), 40523 states have internal predecessors, (113306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113306 transitions. [2022-03-03 16:58:39,913 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113306 transitions. Word has length 231 [2022-03-03 16:58:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:58:39,914 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113306 transitions. [2022-03-03 16:58:39,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:39,914 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113306 transitions. [2022-03-03 16:58:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:58:39,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:58:39,957 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:58:39,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-03 16:58:39,957 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:58:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:58:39,958 INFO L85 PathProgramCache]: Analyzing trace with hash -313441896, now seen corresponding path program 36 times [2022-03-03 16:58:39,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:58:39,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629164711] [2022-03-03 16:58:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:58:39,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:58:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:58:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:58:40,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:58:40,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629164711] [2022-03-03 16:58:40,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629164711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:58:40,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:58:40,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:58:40,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568266338] [2022-03-03 16:58:40,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:58:40,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:58:40,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:58:40,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:58:40,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:58:40,382 INFO L87 Difference]: Start difference. First operand 40524 states and 113306 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:58:46,303 INFO L93 Difference]: Finished difference Result 76392 states and 210307 transitions. [2022-03-03 16:58:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-03 16:58:46,303 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:58:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:58:46,480 INFO L225 Difference]: With dead ends: 76392 [2022-03-03 16:58:46,480 INFO L226 Difference]: Without dead ends: 76392 [2022-03-03 16:58:46,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6116 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4174, Invalid=16418, Unknown=0, NotChecked=0, Total=20592 [2022-03-03 16:58:46,482 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 2418 mSDsluCounter, 9907 mSDsCounter, 0 mSdLazyCounter, 4125 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 10368 SdHoareTripleChecker+Invalid, 4144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:58:46,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2418 Valid, 10368 Invalid, 4144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4125 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-03 16:58:46,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76392 states. [2022-03-03 16:58:47,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76392 to 40528. [2022-03-03 16:58:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40528 states, 40527 states have (on average 2.7962839588422534) internal successors, (113325), 40527 states have internal predecessors, (113325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113325 transitions. [2022-03-03 16:58:47,707 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113325 transitions. Word has length 231 [2022-03-03 16:58:47,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:58:47,707 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113325 transitions. [2022-03-03 16:58:47,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113325 transitions. [2022-03-03 16:58:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:58:47,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:58:47,754 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:58:47,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-03 16:58:47,754 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:58:47,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:58:47,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1506862158, now seen corresponding path program 37 times [2022-03-03 16:58:47,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:58:47,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084311743] [2022-03-03 16:58:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:58:47,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:58:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:58:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:58:48,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:58:48,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084311743] [2022-03-03 16:58:48,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084311743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:58:48,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:58:48,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-03 16:58:48,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681732480] [2022-03-03 16:58:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:58:48,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-03 16:58:48,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:58:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-03 16:58:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:58:48,116 INFO L87 Difference]: Start difference. First operand 40528 states and 113325 transitions. Second operand has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:49,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:58:49,069 INFO L93 Difference]: Finished difference Result 56780 states and 157222 transitions. [2022-03-03 16:58:49,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-03 16:58:49,069 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:58:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:58:49,402 INFO L225 Difference]: With dead ends: 56780 [2022-03-03 16:58:49,402 INFO L226 Difference]: Without dead ends: 56780 [2022-03-03 16:58:49,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=424, Invalid=1298, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 16:58:49,402 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1450 mSDsluCounter, 3636 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:58:49,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 3957 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:58:49,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56780 states. [2022-03-03 16:58:50,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56780 to 40520. [2022-03-03 16:58:50,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40520 states, 40519 states have (on average 2.795996939707298) internal successors, (113291), 40519 states have internal predecessors, (113291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-03-03 16:58:50,250 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-03-03 16:58:50,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:58:50,250 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-03-03 16:58:50,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:58:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-03-03 16:58:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:58:50,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:58:50,427 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:58:50,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-03 16:58:50,427 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:58:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:58:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1168755266, now seen corresponding path program 38 times [2022-03-03 16:58:50,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:58:50,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105025192] [2022-03-03 16:58:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:58:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:58:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:58:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:58:51,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:58:51,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105025192] [2022-03-03 16:58:51,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105025192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:58:51,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:58:51,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:58:51,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124666190] [2022-03-03 16:58:51,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:58:51,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:58:51,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:58:51,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:58:51,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:58:51,131 INFO L87 Difference]: Start difference. First operand 40520 states and 113291 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:01,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:01,091 INFO L93 Difference]: Finished difference Result 71429 states and 196822 transitions. [2022-03-03 16:59:01,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2022-03-03 16:59:01,091 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:01,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:01,234 INFO L225 Difference]: With dead ends: 71429 [2022-03-03 16:59:01,234 INFO L226 Difference]: Without dead ends: 70957 [2022-03-03 16:59:01,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14015 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=8003, Invalid=32599, Unknown=0, NotChecked=0, Total=40602 [2022-03-03 16:59:01,236 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 2801 mSDsluCounter, 10429 mSDsCounter, 0 mSdLazyCounter, 4443 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2801 SdHoareTripleChecker+Valid, 10928 SdHoareTripleChecker+Invalid, 4464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:01,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2801 Valid, 10928 Invalid, 4464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4443 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-03 16:59:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70957 states. [2022-03-03 16:59:02,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70957 to 40544. [2022-03-03 16:59:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40544 states, 40543 states have (on average 2.7960683718521078) internal successors, (113361), 40543 states have internal predecessors, (113361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40544 states to 40544 states and 113361 transitions. [2022-03-03 16:59:02,194 INFO L78 Accepts]: Start accepts. Automaton has 40544 states and 113361 transitions. Word has length 231 [2022-03-03 16:59:02,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:02,194 INFO L470 AbstractCegarLoop]: Abstraction has 40544 states and 113361 transitions. [2022-03-03 16:59:02,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 40544 states and 113361 transitions. [2022-03-03 16:59:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:02,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:02,232 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:02,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-03 16:59:02,232 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:02,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:02,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1978686848, now seen corresponding path program 39 times [2022-03-03 16:59:02,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:02,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065821059] [2022-03-03 16:59:02,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:02,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:02,788 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:02,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:02,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065821059] [2022-03-03 16:59:02,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065821059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:02,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:02,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 16:59:02,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391876172] [2022-03-03 16:59:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:02,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 16:59:02,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:02,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 16:59:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:02,790 INFO L87 Difference]: Start difference. First operand 40544 states and 113361 transitions. Second operand has 24 states, 24 states have (on average 7.291666666666667) internal successors, (175), 24 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:04,670 INFO L93 Difference]: Finished difference Result 57880 states and 160293 transitions. [2022-03-03 16:59:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 16:59:04,671 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.291666666666667) internal successors, (175), 24 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:04,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:04,782 INFO L225 Difference]: With dead ends: 57880 [2022-03-03 16:59:04,782 INFO L226 Difference]: Without dead ends: 57880 [2022-03-03 16:59:04,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1132, Invalid=3560, Unknown=0, NotChecked=0, Total=4692 [2022-03-03 16:59:04,783 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1721 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 4982 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:04,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1721 Valid, 4982 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 16:59:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57880 states. [2022-03-03 16:59:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57880 to 40528. [2022-03-03 16:59:05,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40528 states, 40527 states have (on average 2.7960865595775655) internal successors, (113317), 40527 states have internal predecessors, (113317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113317 transitions. [2022-03-03 16:59:05,666 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113317 transitions. Word has length 231 [2022-03-03 16:59:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:05,667 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113317 transitions. [2022-03-03 16:59:05,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.291666666666667) internal successors, (175), 24 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,667 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113317 transitions. [2022-03-03 16:59:05,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:05,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:05,705 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:05,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-03 16:59:05,705 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:05,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:05,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2026910460, now seen corresponding path program 40 times [2022-03-03 16:59:05,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:05,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378977123] [2022-03-03 16:59:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:05,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:06,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:06,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378977123] [2022-03-03 16:59:06,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378977123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:06,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:06,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:59:06,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702910013] [2022-03-03 16:59:06,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:06,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:59:06,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:59:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:59:06,267 INFO L87 Difference]: Start difference. First operand 40528 states and 113317 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:13,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:13,227 INFO L93 Difference]: Finished difference Result 78576 states and 216461 transitions. [2022-03-03 16:59:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-03-03 16:59:13,227 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:13,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:13,499 INFO L225 Difference]: With dead ends: 78576 [2022-03-03 16:59:13,499 INFO L226 Difference]: Without dead ends: 78576 [2022-03-03 16:59:13,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10907 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=6530, Invalid=25690, Unknown=0, NotChecked=0, Total=32220 [2022-03-03 16:59:13,501 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 2418 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 4292 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 10519 SdHoareTripleChecker+Invalid, 4311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:13,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2418 Valid, 10519 Invalid, 4311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4292 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-03 16:59:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78576 states. [2022-03-03 16:59:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78576 to 40532. [2022-03-03 16:59:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40532 states, 40531 states have (on average 2.796279391083368) internal successors, (113336), 40531 states have internal predecessors, (113336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40532 states to 40532 states and 113336 transitions. [2022-03-03 16:59:14,556 INFO L78 Accepts]: Start accepts. Automaton has 40532 states and 113336 transitions. Word has length 231 [2022-03-03 16:59:14,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:14,556 INFO L470 AbstractCegarLoop]: Abstraction has 40532 states and 113336 transitions. [2022-03-03 16:59:14,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,556 INFO L276 IsEmpty]: Start isEmpty. Operand 40532 states and 113336 transitions. [2022-03-03 16:59:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:14,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:14,601 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:14,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-03 16:59:14,601 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:14,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:14,602 INFO L85 PathProgramCache]: Analyzing trace with hash -206606406, now seen corresponding path program 41 times [2022-03-03 16:59:14,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:14,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907109343] [2022-03-03 16:59:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:15,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:15,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907109343] [2022-03-03 16:59:15,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907109343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:15,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:15,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 16:59:15,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260743243] [2022-03-03 16:59:15,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:15,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 16:59:15,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:15,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 16:59:15,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:59:15,257 INFO L87 Difference]: Start difference. First operand 40532 states and 113336 transitions. Second operand has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 26 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:20,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:20,765 INFO L93 Difference]: Finished difference Result 60249 states and 166719 transitions. [2022-03-03 16:59:20,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-03 16:59:20,765 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 26 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:20,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:20,882 INFO L225 Difference]: With dead ends: 60249 [2022-03-03 16:59:20,882 INFO L226 Difference]: Without dead ends: 60249 [2022-03-03 16:59:20,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5781 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4366, Invalid=15374, Unknown=0, NotChecked=0, Total=19740 [2022-03-03 16:59:20,883 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2441 mSDsluCounter, 8519 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 9001 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:20,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2441 Valid, 9001 Invalid, 3531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-03 16:59:20,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60249 states. [2022-03-03 16:59:21,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60249 to 40524. [2022-03-03 16:59:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40524 states, 40523 states have (on average 2.795992399378131) internal successors, (113302), 40523 states have internal predecessors, (113302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113302 transitions. [2022-03-03 16:59:21,939 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113302 transitions. Word has length 231 [2022-03-03 16:59:21,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:21,939 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113302 transitions. [2022-03-03 16:59:21,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 26 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113302 transitions. [2022-03-03 16:59:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:21,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:21,979 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:21,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-03 16:59:21,979 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:21,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1483094100, now seen corresponding path program 42 times [2022-03-03 16:59:21,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:21,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114588988] [2022-03-03 16:59:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:21,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:22,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:22,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114588988] [2022-03-03 16:59:22,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114588988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:22,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:22,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-03 16:59:22,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743271840] [2022-03-03 16:59:22,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:22,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-03 16:59:22,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-03 16:59:22,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:59:22,599 INFO L87 Difference]: Start difference. First operand 40524 states and 113302 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:30,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:30,198 INFO L93 Difference]: Finished difference Result 76584 states and 210839 transitions. [2022-03-03 16:59:30,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-03 16:59:30,199 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:30,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:30,377 INFO L225 Difference]: With dead ends: 76584 [2022-03-03 16:59:30,378 INFO L226 Difference]: Without dead ends: 76584 [2022-03-03 16:59:30,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10248 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=6247, Invalid=25615, Unknown=0, NotChecked=0, Total=31862 [2022-03-03 16:59:30,380 INFO L933 BasicCegarLoop]: 761 mSDtfsCounter, 2655 mSDsluCounter, 10196 mSDsCounter, 0 mSdLazyCounter, 4360 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 10744 SdHoareTripleChecker+Invalid, 4380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:30,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2655 Valid, 10744 Invalid, 4380 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [20 Valid, 4360 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-03 16:59:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76584 states. [2022-03-03 16:59:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76584 to 40532. [2022-03-03 16:59:31,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40532 states, 40531 states have (on average 2.796279391083368) internal successors, (113336), 40531 states have internal predecessors, (113336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40532 states to 40532 states and 113336 transitions. [2022-03-03 16:59:31,653 INFO L78 Accepts]: Start accepts. Automaton has 40532 states and 113336 transitions. Word has length 231 [2022-03-03 16:59:31,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:31,654 INFO L470 AbstractCegarLoop]: Abstraction has 40532 states and 113336 transitions. [2022-03-03 16:59:31,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 40532 states and 113336 transitions. [2022-03-03 16:59:31,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:31,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:31,699 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:31,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-03 16:59:31,699 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:31,699 INFO L85 PathProgramCache]: Analyzing trace with hash -991569142, now seen corresponding path program 43 times [2022-03-03 16:59:31,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:31,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356322691] [2022-03-03 16:59:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:31,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:32,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:32,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356322691] [2022-03-03 16:59:32,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356322691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:32,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:32,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-03 16:59:32,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297569473] [2022-03-03 16:59:32,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:32,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-03 16:59:32,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:32,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-03 16:59:32,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-03-03 16:59:32,296 INFO L87 Difference]: Start difference. First operand 40532 states and 113336 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:37,412 INFO L93 Difference]: Finished difference Result 59681 states and 165037 transitions. [2022-03-03 16:59:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-03 16:59:37,412 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:37,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:37,535 INFO L225 Difference]: With dead ends: 59681 [2022-03-03 16:59:37,536 INFO L226 Difference]: Without dead ends: 59681 [2022-03-03 16:59:37,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5053 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4048, Invalid=14042, Unknown=0, NotChecked=0, Total=18090 [2022-03-03 16:59:37,537 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2376 mSDsluCounter, 8601 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 9086 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:37,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2376 Valid, 9086 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3383 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 16:59:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59681 states. [2022-03-03 16:59:38,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59681 to 40528. [2022-03-03 16:59:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40528 states, 40527 states have (on average 2.7960865595775655) internal successors, (113317), 40527 states have internal predecessors, (113317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113317 transitions. [2022-03-03 16:59:38,528 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113317 transitions. Word has length 231 [2022-03-03 16:59:38,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:38,529 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113317 transitions. [2022-03-03 16:59:38,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113317 transitions. [2022-03-03 16:59:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:38,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:38,566 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:38,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-03 16:59:38,567 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:38,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash -745457154, now seen corresponding path program 44 times [2022-03-03 16:59:38,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:38,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807882366] [2022-03-03 16:59:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:38,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:39,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:39,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807882366] [2022-03-03 16:59:39,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807882366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:39,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:39,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-03 16:59:39,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813429380] [2022-03-03 16:59:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:39,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-03 16:59:39,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:39,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-03 16:59:39,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:59:39,108 INFO L87 Difference]: Start difference. First operand 40528 states and 113317 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:46,481 INFO L93 Difference]: Finished difference Result 58359 states and 161397 transitions. [2022-03-03 16:59:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-03 16:59:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:46,728 INFO L225 Difference]: With dead ends: 58359 [2022-03-03 16:59:46,729 INFO L226 Difference]: Without dead ends: 58359 [2022-03-03 16:59:46,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7147 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=5201, Invalid=19291, Unknown=0, NotChecked=0, Total=24492 [2022-03-03 16:59:46,730 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 2705 mSDsluCounter, 9135 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 9666 SdHoareTripleChecker+Invalid, 3714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:46,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2705 Valid, 9666 Invalid, 3714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-03 16:59:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58359 states. [2022-03-03 16:59:47,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58359 to 40520. [2022-03-03 16:59:47,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40520 states, 40519 states have (on average 2.795996939707298) internal successors, (113291), 40519 states have internal predecessors, (113291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-03-03 16:59:47,678 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-03-03 16:59:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:47,678 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-03-03 16:59:47,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-03-03 16:59:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:47,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:47,728 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:47,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-03 16:59:47,728 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:47,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2116950654, now seen corresponding path program 45 times [2022-03-03 16:59:47,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:47,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687721586] [2022-03-03 16:59:47,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:47,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:48,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:48,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687721586] [2022-03-03 16:59:48,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687721586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:48,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:48,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 16:59:48,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660142847] [2022-03-03 16:59:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:48,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 16:59:48,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 16:59:48,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:48,124 INFO L87 Difference]: Start difference. First operand 40520 states and 113291 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:49,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:49,497 INFO L93 Difference]: Finished difference Result 56678 states and 156913 transitions. [2022-03-03 16:59:49,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 16:59:49,498 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:49,610 INFO L225 Difference]: With dead ends: 56678 [2022-03-03 16:59:49,610 INFO L226 Difference]: Without dead ends: 56029 [2022-03-03 16:59:49,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 16:59:49,611 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1244 mSDsluCounter, 5080 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 5452 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:49,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1244 Valid, 5452 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:59:49,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56029 states. [2022-03-03 16:59:50,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56029 to 40520. [2022-03-03 16:59:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40520 states, 40519 states have (on average 2.7951084676324687) internal successors, (113255), 40519 states have internal predecessors, (113255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:50,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113255 transitions. [2022-03-03 16:59:50,568 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113255 transitions. Word has length 231 [2022-03-03 16:59:50,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:50,568 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113255 transitions. [2022-03-03 16:59:50,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113255 transitions. [2022-03-03 16:59:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:50,606 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:50,606 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:50,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-03 16:59:50,607 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:50,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:50,607 INFO L85 PathProgramCache]: Analyzing trace with hash -897731330, now seen corresponding path program 46 times [2022-03-03 16:59:50,607 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:50,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434597228] [2022-03-03 16:59:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:51,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:51,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434597228] [2022-03-03 16:59:51,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434597228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:51,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:51,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 16:59:51,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505519232] [2022-03-03 16:59:51,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:51,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 16:59:51,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:51,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 16:59:51,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:51,173 INFO L87 Difference]: Start difference. First operand 40520 states and 113255 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:52,714 INFO L93 Difference]: Finished difference Result 57928 states and 160650 transitions. [2022-03-03 16:59:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 16:59:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:52,848 INFO L225 Difference]: With dead ends: 57928 [2022-03-03 16:59:52,848 INFO L226 Difference]: Without dead ends: 57928 [2022-03-03 16:59:52,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=724, Invalid=2138, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 16:59:52,848 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1257 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:52,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 4511 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 16:59:52,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57928 states. [2022-03-03 16:59:53,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57928 to 40528. [2022-03-03 16:59:53,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40528 states, 40527 states have (on average 2.7953956621511584) internal successors, (113289), 40527 states have internal predecessors, (113289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113289 transitions. [2022-03-03 16:59:53,961 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113289 transitions. Word has length 231 [2022-03-03 16:59:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:53,961 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113289 transitions. [2022-03-03 16:59:53,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113289 transitions. [2022-03-03 16:59:54,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:54,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:54,007 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:54,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-03 16:59:54,007 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash 922572724, now seen corresponding path program 47 times [2022-03-03 16:59:54,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:54,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782246812] [2022-03-03 16:59:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:54,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:54,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:54,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782246812] [2022-03-03 16:59:54,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782246812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:54,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:54,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 16:59:54,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905992602] [2022-03-03 16:59:54,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:54,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 16:59:54,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:54,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 16:59:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:54,452 INFO L87 Difference]: Start difference. First operand 40528 states and 113289 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:55,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:55,808 INFO L93 Difference]: Finished difference Result 58148 states and 161261 transitions. [2022-03-03 16:59:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 16:59:55,808 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:55,932 INFO L225 Difference]: With dead ends: 58148 [2022-03-03 16:59:55,932 INFO L226 Difference]: Without dead ends: 58148 [2022-03-03 16:59:55,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=694, Invalid=2062, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 16:59:55,932 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1424 mSDsluCounter, 3848 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 4245 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:55,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1424 Valid, 4245 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 16:59:56,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58148 states. [2022-03-03 16:59:56,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58148 to 40524. [2022-03-03 16:59:56,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40524 states, 40523 states have (on average 2.795202724378748) internal successors, (113270), 40523 states have internal predecessors, (113270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113270 transitions. [2022-03-03 16:59:56,915 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113270 transitions. Word has length 231 [2022-03-03 16:59:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:56,915 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113270 transitions. [2022-03-03 16:59:56,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:56,916 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113270 transitions. [2022-03-03 16:59:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 16:59:56,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:56,953 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:56,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-03 16:59:56,954 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:56,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:56,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1168684712, now seen corresponding path program 48 times [2022-03-03 16:59:56,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:56,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754503844] [2022-03-03 16:59:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:56,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 16:59:57,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:57,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754503844] [2022-03-03 16:59:57,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754503844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:57,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:57,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 16:59:57,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234624545] [2022-03-03 16:59:57,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:57,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 16:59:57,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:57,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 16:59:57,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:57,342 INFO L87 Difference]: Start difference. First operand 40524 states and 113270 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:58,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:58,856 INFO L93 Difference]: Finished difference Result 58427 states and 161916 transitions. [2022-03-03 16:59:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 16:59:58,856 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 16:59:58,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:58,992 INFO L225 Difference]: With dead ends: 58427 [2022-03-03 16:59:58,992 INFO L226 Difference]: Without dead ends: 58427 [2022-03-03 16:59:58,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=720, Invalid=2142, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 16:59:58,993 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1344 mSDsluCounter, 4432 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 4822 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:58,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 4822 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 16:59:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58427 states. [2022-03-03 16:59:59,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58427 to 40472. [2022-03-03 16:59:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40472 states, 40471 states have (on average 2.7947666230140102) internal successors, (113107), 40471 states have internal predecessors, (113107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:00,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113107 transitions. [2022-03-03 17:00:00,103 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113107 transitions. Word has length 231 [2022-03-03 17:00:00,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:00,103 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113107 transitions. [2022-03-03 17:00:00,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113107 transitions. [2022-03-03 17:00:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:00,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:00,146 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:00,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-03 17:00:00,146 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:00,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:00,147 INFO L85 PathProgramCache]: Analyzing trace with hash 179518346, now seen corresponding path program 49 times [2022-03-03 17:00:00,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:00,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911510710] [2022-03-03 17:00:00,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:00,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:00,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:00,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911510710] [2022-03-03 17:00:00,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911510710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:00,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:00,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:00,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890981846] [2022-03-03 17:00:00,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:00,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:00,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:00,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:00,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:00,787 INFO L87 Difference]: Start difference. First operand 40472 states and 113107 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:02,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:02,544 INFO L93 Difference]: Finished difference Result 58748 states and 162973 transitions. [2022-03-03 17:00:02,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 17:00:02,545 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:02,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:02,683 INFO L225 Difference]: With dead ends: 58748 [2022-03-03 17:00:02,684 INFO L226 Difference]: Without dead ends: 58748 [2022-03-03 17:00:02,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=866, Invalid=2556, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:00:02,684 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1388 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 4451 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:02,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 4451 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:00:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58748 states. [2022-03-03 17:00:03,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58748 to 40480. [2022-03-03 17:00:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40480 states, 40479 states have (on average 2.7948565923071222) internal successors, (113133), 40479 states have internal predecessors, (113133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:03,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-03 17:00:03,781 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-03 17:00:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:03,781 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-03 17:00:03,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-03 17:00:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:04,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:04,016 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:04,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-03 17:00:04,017 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:04,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash -678636848, now seen corresponding path program 50 times [2022-03-03 17:00:04,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:04,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364385057] [2022-03-03 17:00:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:04,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:04,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364385057] [2022-03-03 17:00:04,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364385057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:04,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:04,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:04,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682146101] [2022-03-03 17:00:04,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:04,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:04,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:04,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:04,491 INFO L87 Difference]: Start difference. First operand 40480 states and 113133 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:05,978 INFO L93 Difference]: Finished difference Result 59964 states and 166493 transitions. [2022-03-03 17:00:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:05,978 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:06,124 INFO L225 Difference]: With dead ends: 59964 [2022-03-03 17:00:06,124 INFO L226 Difference]: Without dead ends: 59964 [2022-03-03 17:00:06,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 17:00:06,124 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1321 mSDsluCounter, 4354 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:06,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 4737 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:00:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59964 states. [2022-03-03 17:00:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59964 to 40484. [2022-03-03 17:00:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40484 states, 40483 states have (on average 2.7950497739792013) internal successors, (113152), 40483 states have internal predecessors, (113152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:07,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-03 17:00:07,220 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-03 17:00:07,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:07,220 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-03 17:00:07,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:07,221 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-03 17:00:07,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:07,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:07,271 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:07,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-03 17:00:07,271 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1141667206, now seen corresponding path program 51 times [2022-03-03 17:00:07,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:07,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554727937] [2022-03-03 17:00:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:07,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:07,764 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:07,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:07,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554727937] [2022-03-03 17:00:07,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554727937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:07,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:07,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:07,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661841591] [2022-03-03 17:00:07,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:07,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:07,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:07,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:07,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:07,766 INFO L87 Difference]: Start difference. First operand 40484 states and 113152 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:09,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:09,389 INFO L93 Difference]: Finished difference Result 59132 states and 164159 transitions. [2022-03-03 17:00:09,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:09,389 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:09,541 INFO L225 Difference]: With dead ends: 59132 [2022-03-03 17:00:09,541 INFO L226 Difference]: Without dead ends: 59132 [2022-03-03 17:00:09,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=782, Invalid=2298, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 17:00:09,542 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1248 mSDsluCounter, 4201 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:09,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 4571 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:00:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59132 states. [2022-03-03 17:00:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59132 to 40476. [2022-03-03 17:00:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40476 states, 40475 states have (on average 2.7947621988882028) internal successors, (113118), 40475 states have internal predecessors, (113118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:10,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40476 states to 40476 states and 113118 transitions. [2022-03-03 17:00:10,726 INFO L78 Accepts]: Start accepts. Automaton has 40476 states and 113118 transitions. Word has length 231 [2022-03-03 17:00:10,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:10,726 INFO L470 AbstractCegarLoop]: Abstraction has 40476 states and 113118 transitions. [2022-03-03 17:00:10,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:10,727 INFO L276 IsEmpty]: Start isEmpty. Operand 40476 states and 113118 transitions. [2022-03-03 17:00:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:10,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:10,773 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:10,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-03 17:00:10,773 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:10,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:10,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1463599584, now seen corresponding path program 52 times [2022-03-03 17:00:10,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:10,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012420311] [2022-03-03 17:00:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:10,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:11,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:11,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012420311] [2022-03-03 17:00:11,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012420311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:11,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:11,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:11,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780093859] [2022-03-03 17:00:11,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:11,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:11,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:11,396 INFO L87 Difference]: Start difference. First operand 40476 states and 113118 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:13,138 INFO L93 Difference]: Finished difference Result 60384 states and 167648 transitions. [2022-03-03 17:00:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:13,271 INFO L225 Difference]: With dead ends: 60384 [2022-03-03 17:00:13,271 INFO L226 Difference]: Without dead ends: 60384 [2022-03-03 17:00:13,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=810, Invalid=2382, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 17:00:13,272 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1354 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 4265 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:13,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1354 Valid, 4265 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60384 states. [2022-03-03 17:00:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60384 to 40484. [2022-03-03 17:00:14,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40484 states, 40483 states have (on average 2.7950497739792013) internal successors, (113152), 40483 states have internal predecessors, (113152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:14,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-03 17:00:14,381 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-03 17:00:14,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:14,381 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-03 17:00:14,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-03 17:00:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:14,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:14,428 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:14,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-03 17:00:14,428 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:14,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash 356704470, now seen corresponding path program 53 times [2022-03-03 17:00:14,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:14,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640937695] [2022-03-03 17:00:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:14,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:14,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640937695] [2022-03-03 17:00:14,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640937695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:14,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:14,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:14,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459002232] [2022-03-03 17:00:14,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:14,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:14,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:14,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:14,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:14,971 INFO L87 Difference]: Start difference. First operand 40484 states and 113152 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:16,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:16,683 INFO L93 Difference]: Finished difference Result 60576 states and 168186 transitions. [2022-03-03 17:00:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:16,835 INFO L225 Difference]: With dead ends: 60576 [2022-03-03 17:00:16,836 INFO L226 Difference]: Without dead ends: 60576 [2022-03-03 17:00:16,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=783, Invalid=2297, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 17:00:16,836 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1226 mSDsluCounter, 4005 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 4390 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:16,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 4390 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:17,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60576 states. [2022-03-03 17:00:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60576 to 40480. [2022-03-03 17:00:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40480 states, 40479 states have (on average 2.7948565923071222) internal successors, (113133), 40479 states have internal predecessors, (113133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-03 17:00:17,985 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-03 17:00:17,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:17,985 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-03 17:00:17,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:17,985 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-03 17:00:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:18,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:18,030 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:18,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-03 17:00:18,030 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash 602816458, now seen corresponding path program 54 times [2022-03-03 17:00:18,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:18,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845543054] [2022-03-03 17:00:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:18,758 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:18,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:18,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845543054] [2022-03-03 17:00:18,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845543054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:18,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:18,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:18,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158304607] [2022-03-03 17:00:18,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:18,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:18,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:18,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:18,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:18,761 INFO L87 Difference]: Start difference. First operand 40480 states and 113133 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:20,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:20,392 INFO L93 Difference]: Finished difference Result 59415 states and 164765 transitions. [2022-03-03 17:00:20,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:20,706 INFO L225 Difference]: With dead ends: 59415 [2022-03-03 17:00:20,706 INFO L226 Difference]: Without dead ends: 59415 [2022-03-03 17:00:20,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 17:00:20,706 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1368 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 4564 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:20,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 4564 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:00:20,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59415 states. [2022-03-03 17:00:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59415 to 40424. [2022-03-03 17:00:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40424 states, 40423 states have (on average 2.7947208272518123) internal successors, (112971), 40423 states have internal predecessors, (112971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:21,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 112971 transitions. [2022-03-03 17:00:21,721 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 112971 transitions. Word has length 231 [2022-03-03 17:00:21,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:21,743 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 112971 transitions. [2022-03-03 17:00:21,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 112971 transitions. [2022-03-03 17:00:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:21,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:21,825 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:21,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-03 17:00:21,825 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:21,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash -802389598, now seen corresponding path program 55 times [2022-03-03 17:00:21,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:21,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13480797] [2022-03-03 17:00:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:22,453 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:22,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:22,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13480797] [2022-03-03 17:00:22,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13480797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:22,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:22,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:22,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567720491] [2022-03-03 17:00:22,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:22,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:22,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:22,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:22,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:22,454 INFO L87 Difference]: Start difference. First operand 40424 states and 112971 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:25,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:25,030 INFO L93 Difference]: Finished difference Result 67156 states and 185603 transitions. [2022-03-03 17:00:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 17:00:25,031 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:25,183 INFO L225 Difference]: With dead ends: 67156 [2022-03-03 17:00:25,183 INFO L226 Difference]: Without dead ends: 66364 [2022-03-03 17:00:25,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1537, Invalid=4943, Unknown=0, NotChecked=0, Total=6480 [2022-03-03 17:00:25,184 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 1992 mSDsluCounter, 6092 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 6535 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:25,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1992 Valid, 6535 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:00:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66364 states. [2022-03-03 17:00:26,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66364 to 40520. [2022-03-03 17:00:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40520 states, 40519 states have (on average 2.7949110293936177) internal successors, (113247), 40519 states have internal predecessors, (113247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113247 transitions. [2022-03-03 17:00:26,382 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113247 transitions. Word has length 231 [2022-03-03 17:00:26,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:26,382 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113247 transitions. [2022-03-03 17:00:26,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:26,382 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113247 transitions. [2022-03-03 17:00:26,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:26,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:26,430 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:26,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-03 17:00:26,431 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:26,431 INFO L85 PathProgramCache]: Analyzing trace with hash -479848388, now seen corresponding path program 56 times [2022-03-03 17:00:26,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:26,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636183332] [2022-03-03 17:00:26,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:26,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:26,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:26,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636183332] [2022-03-03 17:00:26,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636183332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:26,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:26,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:26,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811838756] [2022-03-03 17:00:26,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:26,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:26,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:26,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:26,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:26,881 INFO L87 Difference]: Start difference. First operand 40520 states and 113247 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:28,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:28,897 INFO L93 Difference]: Finished difference Result 64439 states and 178791 transitions. [2022-03-03 17:00:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:00:28,898 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:28,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:29,031 INFO L225 Difference]: With dead ends: 64439 [2022-03-03 17:00:29,031 INFO L226 Difference]: Without dead ends: 64439 [2022-03-03 17:00:29,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1077, Invalid=3345, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:00:29,032 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 1537 mSDsluCounter, 4928 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:29,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1537 Valid, 5352 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64439 states. [2022-03-03 17:00:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64439 to 40524. [2022-03-03 17:00:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40524 states, 40523 states have (on average 2.795005305628902) internal successors, (113262), 40523 states have internal predecessors, (113262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113262 transitions. [2022-03-03 17:00:30,066 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113262 transitions. Word has length 231 [2022-03-03 17:00:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:30,066 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113262 transitions. [2022-03-03 17:00:30,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113262 transitions. [2022-03-03 17:00:30,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:30,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:30,110 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:30,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-03 17:00:30,110 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:30,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1338003582, now seen corresponding path program 57 times [2022-03-03 17:00:30,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:30,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300789186] [2022-03-03 17:00:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:30,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:30,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:30,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300789186] [2022-03-03 17:00:30,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300789186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:30,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:30,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:30,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280612841] [2022-03-03 17:00:30,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:30,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:30,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:30,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:30,571 INFO L87 Difference]: Start difference. First operand 40524 states and 113262 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:32,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:32,680 INFO L93 Difference]: Finished difference Result 63791 states and 176973 transitions. [2022-03-03 17:00:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:00:32,681 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:32,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:32,823 INFO L225 Difference]: With dead ends: 63791 [2022-03-03 17:00:32,823 INFO L226 Difference]: Without dead ends: 63791 [2022-03-03 17:00:32,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=965, Invalid=2941, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:00:32,824 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1293 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 5492 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:32,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 5492 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:00:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63791 states. [2022-03-03 17:00:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63791 to 40528. [2022-03-03 17:00:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40528 states, 40527 states have (on average 2.795198262886471) internal successors, (113281), 40527 states have internal predecessors, (113281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113281 transitions. [2022-03-03 17:00:33,989 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113281 transitions. Word has length 231 [2022-03-03 17:00:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:33,989 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113281 transitions. [2022-03-03 17:00:33,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113281 transitions. [2022-03-03 17:00:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:34,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:34,040 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:34,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-03 17:00:34,040 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash 482300472, now seen corresponding path program 58 times [2022-03-03 17:00:34,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:34,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185500255] [2022-03-03 17:00:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:34,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:34,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185500255] [2022-03-03 17:00:34,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185500255] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:34,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:34,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:34,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637647014] [2022-03-03 17:00:34,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:34,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:34,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:34,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:34,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:34,514 INFO L87 Difference]: Start difference. First operand 40528 states and 113281 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:36,832 INFO L93 Difference]: Finished difference Result 63114 states and 175034 transitions. [2022-03-03 17:00:36,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:00:36,848 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:36,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:37,101 INFO L225 Difference]: With dead ends: 63114 [2022-03-03 17:00:37,102 INFO L226 Difference]: Without dead ends: 63114 [2022-03-03 17:00:37,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=975, Invalid=2931, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:00:37,102 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1525 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 4973 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:37,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 4973 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:37,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63114 states. [2022-03-03 17:00:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63114 to 40472. [2022-03-03 17:00:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40472 states, 40471 states have (on average 2.7947666230140102) internal successors, (113107), 40471 states have internal predecessors, (113107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113107 transitions. [2022-03-03 17:00:38,041 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113107 transitions. Word has length 231 [2022-03-03 17:00:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:38,042 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113107 transitions. [2022-03-03 17:00:38,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113107 transitions. [2022-03-03 17:00:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:38,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:38,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:38,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-03 17:00:38,087 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:38,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:38,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2101650344, now seen corresponding path program 59 times [2022-03-03 17:00:38,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:38,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838646491] [2022-03-03 17:00:38,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:38,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:38,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:38,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838646491] [2022-03-03 17:00:38,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838646491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:38,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:38,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:38,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735475360] [2022-03-03 17:00:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:38,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:38,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:38,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:38,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:38,960 INFO L87 Difference]: Start difference. First operand 40472 states and 113107 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:41,054 INFO L93 Difference]: Finished difference Result 64859 states and 179946 transitions. [2022-03-03 17:00:41,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:00:41,054 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:41,212 INFO L225 Difference]: With dead ends: 64859 [2022-03-03 17:00:41,212 INFO L226 Difference]: Without dead ends: 64859 [2022-03-03 17:00:41,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1015, Invalid=3145, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:00:41,213 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1504 mSDsluCounter, 5291 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 5695 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:41,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1504 Valid, 5695 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:41,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64859 states. [2022-03-03 17:00:42,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64859 to 40480. [2022-03-03 17:00:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40480 states, 40479 states have (on average 2.7948565923071222) internal successors, (113133), 40479 states have internal predecessors, (113133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-03 17:00:42,284 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-03 17:00:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:42,285 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-03 17:00:42,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-03 17:00:42,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:42,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:42,333 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:42,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-03 17:00:42,333 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:42,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:42,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1243495150, now seen corresponding path program 60 times [2022-03-03 17:00:42,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:42,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011915268] [2022-03-03 17:00:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:42,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:42,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:42,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011915268] [2022-03-03 17:00:42,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011915268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:42,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:42,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:42,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532945912] [2022-03-03 17:00:42,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:42,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:42,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:42,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:42,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:42,946 INFO L87 Difference]: Start difference. First operand 40480 states and 113133 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:44,962 INFO L93 Difference]: Finished difference Result 66047 states and 183393 transitions. [2022-03-03 17:00:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:00:44,963 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:44,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:45,128 INFO L225 Difference]: With dead ends: 66047 [2022-03-03 17:00:45,128 INFO L226 Difference]: Without dead ends: 66047 [2022-03-03 17:00:45,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=963, Invalid=2943, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:00:45,130 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 1480 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 4698 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:45,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 4698 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:45,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66047 states. [2022-03-03 17:00:46,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66047 to 40484. [2022-03-03 17:00:46,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40484 states, 40483 states have (on average 2.7950497739792013) internal successors, (113152), 40483 states have internal predecessors, (113152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-03 17:00:46,228 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-03 17:00:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:46,229 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-03 17:00:46,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-03 17:00:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:46,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:46,479 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:46,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-03 17:00:46,480 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:46,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1231168092, now seen corresponding path program 61 times [2022-03-03 17:00:46,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:46,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519423258] [2022-03-03 17:00:46,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:46,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:46,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:46,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519423258] [2022-03-03 17:00:46,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519423258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:46,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:46,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:46,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993485597] [2022-03-03 17:00:46,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:46,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:46,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:46,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:46,990 INFO L87 Difference]: Start difference. First operand 40484 states and 113152 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:49,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:49,059 INFO L93 Difference]: Finished difference Result 65370 states and 181454 transitions. [2022-03-03 17:00:49,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:00:49,060 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:49,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:49,223 INFO L225 Difference]: With dead ends: 65370 [2022-03-03 17:00:49,224 INFO L226 Difference]: Without dead ends: 65370 [2022-03-03 17:00:49,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=968, Invalid=2938, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:00:49,224 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1557 mSDsluCounter, 5079 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 5471 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:49,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1557 Valid, 5471 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65370 states. [2022-03-03 17:00:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65370 to 40476. [2022-03-03 17:00:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40476 states, 40475 states have (on average 2.7947621988882028) internal successors, (113118), 40475 states have internal predecessors, (113118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40476 states to 40476 states and 113118 transitions. [2022-03-03 17:00:50,475 INFO L78 Accepts]: Start accepts. Automaton has 40476 states and 113118 transitions. Word has length 231 [2022-03-03 17:00:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:50,475 INFO L470 AbstractCegarLoop]: Abstraction has 40476 states and 113118 transitions. [2022-03-03 17:00:50,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 40476 states and 113118 transitions. [2022-03-03 17:00:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:50,518 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:50,518 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:50,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-03 17:00:50,518 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:50,518 INFO L85 PathProgramCache]: Analyzing trace with hash 458532414, now seen corresponding path program 62 times [2022-03-03 17:00:50,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:50,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137765070] [2022-03-03 17:00:50,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:50,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:51,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:51,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137765070] [2022-03-03 17:00:51,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137765070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:51,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:51,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:51,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486055454] [2022-03-03 17:00:51,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:51,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:51,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:51,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:51,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:51,011 INFO L87 Difference]: Start difference. First operand 40476 states and 113118 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:53,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:53,069 INFO L93 Difference]: Finished difference Result 64159 states and 177977 transitions. [2022-03-03 17:00:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:00:53,069 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:53,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:53,238 INFO L225 Difference]: With dead ends: 64159 [2022-03-03 17:00:53,238 INFO L226 Difference]: Without dead ends: 64159 [2022-03-03 17:00:53,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=903, Invalid=2757, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:00:53,239 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1585 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:53,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 5331 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64159 states. [2022-03-03 17:00:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64159 to 40484. [2022-03-03 17:00:54,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40484 states, 40483 states have (on average 2.7950497739792013) internal successors, (113152), 40483 states have internal predecessors, (113152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-03 17:00:54,512 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-03 17:00:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:54,512 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-03 17:00:54,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:54,512 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-03 17:00:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:54,553 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:54,554 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:54,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-03 17:00:54,554 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:54,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:54,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2016130828, now seen corresponding path program 63 times [2022-03-03 17:00:54,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:54,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058459729] [2022-03-03 17:00:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:54,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:55,051 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:55,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:55,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058459729] [2022-03-03 17:00:55,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058459729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:55,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:55,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:55,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747873050] [2022-03-03 17:00:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:55,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:55,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:55,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:55,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:55,053 INFO L87 Difference]: Start difference. First operand 40484 states and 113152 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:57,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:57,070 INFO L93 Difference]: Finished difference Result 64506 states and 178910 transitions. [2022-03-03 17:00:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:00:57,071 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:00:57,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:57,214 INFO L225 Difference]: With dead ends: 64506 [2022-03-03 17:00:57,214 INFO L226 Difference]: Without dead ends: 64506 [2022-03-03 17:00:57,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=908, Invalid=2752, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:00:57,215 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1573 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:57,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1573 Valid, 5250 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:00:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64506 states. [2022-03-03 17:00:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64506 to 40480. [2022-03-03 17:00:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40480 states, 40479 states have (on average 2.7948565923071222) internal successors, (113133), 40479 states have internal predecessors, (113133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:58,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-03 17:00:58,442 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-03 17:00:58,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:58,443 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-03 17:00:58,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-03 17:00:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:00:58,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:58,485 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:58,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-03 17:00:58,485 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:58,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1770018840, now seen corresponding path program 64 times [2022-03-03 17:00:58,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:58,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111744015] [2022-03-03 17:00:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:58,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:00:58,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:58,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111744015] [2022-03-03 17:00:58,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111744015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:58,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:58,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:00:58,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588494549] [2022-03-03 17:00:58,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:58,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:00:58,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:58,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:00:58,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:00:58,919 INFO L87 Difference]: Start difference. First operand 40480 states and 113133 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:00,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:00,641 INFO L93 Difference]: Finished difference Result 63066 states and 174716 transitions. [2022-03-03 17:01:00,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:01:00,642 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:00,804 INFO L225 Difference]: With dead ends: 63066 [2022-03-03 17:01:00,805 INFO L226 Difference]: Without dead ends: 63066 [2022-03-03 17:01:00,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=966, Invalid=2940, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:01:00,805 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1684 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:00,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1684 Valid, 5256 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:01:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63066 states. [2022-03-03 17:01:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63066 to 39848. [2022-03-03 17:01:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39848 states, 39847 states have (on average 2.7929580645970837) internal successors, (111291), 39847 states have internal predecessors, (111291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:01,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39848 states to 39848 states and 111291 transitions. [2022-03-03 17:01:01,876 INFO L78 Accepts]: Start accepts. Automaton has 39848 states and 111291 transitions. Word has length 231 [2022-03-03 17:01:01,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:01,876 INFO L470 AbstractCegarLoop]: Abstraction has 39848 states and 111291 transitions. [2022-03-03 17:01:01,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:01,876 INFO L276 IsEmpty]: Start isEmpty. Operand 39848 states and 111291 transitions. [2022-03-03 17:01:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:02,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:02,128 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:02,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-03 17:01:02,128 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:02,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:02,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076682, now seen corresponding path program 65 times [2022-03-03 17:01:02,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:02,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089251295] [2022-03-03 17:01:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:02,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:02,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:02,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089251295] [2022-03-03 17:01:02,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089251295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:02,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:02,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:02,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996098601] [2022-03-03 17:01:02,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:02,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:02,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:02,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:02,503 INFO L87 Difference]: Start difference. First operand 39848 states and 111291 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:03,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:03,662 INFO L93 Difference]: Finished difference Result 48851 states and 135511 transitions. [2022-03-03 17:01:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:01:03,663 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:03,944 INFO L225 Difference]: With dead ends: 48851 [2022-03-03 17:01:03,944 INFO L226 Difference]: Without dead ends: 48179 [2022-03-03 17:01:03,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=492, Invalid=1670, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:01:03,954 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1496 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 4680 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:03,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 4680 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:01:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48179 states. [2022-03-03 17:01:04,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48179 to 39848. [2022-03-03 17:01:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39848 states, 39847 states have (on average 2.7928576806284036) internal successors, (111287), 39847 states have internal predecessors, (111287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:04,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39848 states to 39848 states and 111287 transitions. [2022-03-03 17:01:04,742 INFO L78 Accepts]: Start accepts. Automaton has 39848 states and 111287 transitions. Word has length 231 [2022-03-03 17:01:04,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:04,742 INFO L470 AbstractCegarLoop]: Abstraction has 39848 states and 111287 transitions. [2022-03-03 17:01:04,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:04,742 INFO L276 IsEmpty]: Start isEmpty. Operand 39848 states and 111287 transitions. [2022-03-03 17:01:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:04,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:04,782 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:04,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-03 17:01:04,782 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1726005878, now seen corresponding path program 66 times [2022-03-03 17:01:04,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:04,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836037008] [2022-03-03 17:01:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:04,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:05,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:05,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836037008] [2022-03-03 17:01:05,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836037008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:05,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:05,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:05,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873915602] [2022-03-03 17:01:05,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:05,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:05,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:05,359 INFO L87 Difference]: Start difference. First operand 39848 states and 111287 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:06,991 INFO L93 Difference]: Finished difference Result 52464 states and 145474 transitions. [2022-03-03 17:01:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 17:01:06,992 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:07,116 INFO L225 Difference]: With dead ends: 52464 [2022-03-03 17:01:07,117 INFO L226 Difference]: Without dead ends: 51848 [2022-03-03 17:01:07,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:01:07,117 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 1286 mSDsluCounter, 5055 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 5423 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:07,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1286 Valid, 5423 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:01:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51848 states. [2022-03-03 17:01:07,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51848 to 40008. [2022-03-03 17:01:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40008 states, 40007 states have (on average 2.7928862449071414) internal successors, (111735), 40007 states have internal predecessors, (111735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40008 states to 40008 states and 111735 transitions. [2022-03-03 17:01:08,080 INFO L78 Accepts]: Start accepts. Automaton has 40008 states and 111735 transitions. Word has length 231 [2022-03-03 17:01:08,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:08,081 INFO L470 AbstractCegarLoop]: Abstraction has 40008 states and 111735 transitions. [2022-03-03 17:01:08,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:08,081 INFO L276 IsEmpty]: Start isEmpty. Operand 40008 states and 111735 transitions. [2022-03-03 17:01:08,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:08,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:08,345 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:08,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-03 17:01:08,345 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:08,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash 185798212, now seen corresponding path program 67 times [2022-03-03 17:01:08,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:08,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389379749] [2022-03-03 17:01:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:08,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:08,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:08,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389379749] [2022-03-03 17:01:08,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389379749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:08,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:08,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:08,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678189414] [2022-03-03 17:01:08,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:08,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:08,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:08,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:08,741 INFO L87 Difference]: Start difference. First operand 40008 states and 111735 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:10,350 INFO L93 Difference]: Finished difference Result 51650 states and 143418 transitions. [2022-03-03 17:01:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:01:10,351 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:10,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:10,487 INFO L225 Difference]: With dead ends: 51650 [2022-03-03 17:01:10,488 INFO L226 Difference]: Without dead ends: 51650 [2022-03-03 17:01:10,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=734, Invalid=2236, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:01:10,488 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1330 mSDsluCounter, 4158 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 4527 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:10,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 4527 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:01:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51650 states. [2022-03-03 17:01:11,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51650 to 40012. [2022-03-03 17:01:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40012 states, 40011 states have (on average 2.7929819299692586) internal successors, (111750), 40011 states have internal predecessors, (111750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40012 states to 40012 states and 111750 transitions. [2022-03-03 17:01:11,395 INFO L78 Accepts]: Start accepts. Automaton has 40012 states and 111750 transitions. Word has length 231 [2022-03-03 17:01:11,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:11,395 INFO L470 AbstractCegarLoop]: Abstraction has 40012 states and 111750 transitions. [2022-03-03 17:01:11,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 40012 states and 111750 transitions. [2022-03-03 17:01:11,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:11,439 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:11,439 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:11,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-03 17:01:11,439 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:11,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash -672356982, now seen corresponding path program 68 times [2022-03-03 17:01:11,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:11,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865776955] [2022-03-03 17:01:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:11,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:11,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:11,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865776955] [2022-03-03 17:01:11,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865776955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:11,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:11,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:11,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888279688] [2022-03-03 17:01:11,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:11,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:11,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:11,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:11,706 INFO L87 Difference]: Start difference. First operand 40012 states and 111750 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:13,375 INFO L93 Difference]: Finished difference Result 51146 states and 142012 transitions. [2022-03-03 17:01:13,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 17:01:13,383 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:13,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:13,504 INFO L225 Difference]: With dead ends: 51146 [2022-03-03 17:01:13,504 INFO L226 Difference]: Without dead ends: 51146 [2022-03-03 17:01:13,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=652, Invalid=2000, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:01:13,504 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1154 mSDsluCounter, 4287 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 4650 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:13,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 4650 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:01:13,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51146 states. [2022-03-03 17:01:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51146 to 40016. [2022-03-03 17:01:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40016 states, 40015 states have (on average 2.7931775584155942) internal successors, (111769), 40015 states have internal predecessors, (111769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40016 states to 40016 states and 111769 transitions. [2022-03-03 17:01:14,584 INFO L78 Accepts]: Start accepts. Automaton has 40016 states and 111769 transitions. Word has length 231 [2022-03-03 17:01:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:14,584 INFO L470 AbstractCegarLoop]: Abstraction has 40016 states and 111769 transitions. [2022-03-03 17:01:14,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 40016 states and 111769 transitions. [2022-03-03 17:01:14,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:14,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:14,623 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:14,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-03 17:01:14,623 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:14,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:14,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1147947072, now seen corresponding path program 69 times [2022-03-03 17:01:14,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:14,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010886634] [2022-03-03 17:01:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:14,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:14,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:14,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010886634] [2022-03-03 17:01:14,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010886634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:14,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:14,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:14,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200652629] [2022-03-03 17:01:14,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:14,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:14,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:14,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:14,959 INFO L87 Difference]: Start difference. First operand 40016 states and 111769 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:16,183 INFO L93 Difference]: Finished difference Result 50089 states and 139150 transitions. [2022-03-03 17:01:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 17:01:16,184 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:16,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:16,291 INFO L225 Difference]: With dead ends: 50089 [2022-03-03 17:01:16,292 INFO L226 Difference]: Without dead ends: 50089 [2022-03-03 17:01:16,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=685, Invalid=2071, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:01:16,292 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1396 mSDsluCounter, 4476 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 4816 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:16,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 4816 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:01:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50089 states. [2022-03-03 17:01:16,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50089 to 40004. [2022-03-03 17:01:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40004 states, 40003 states have (on average 2.7927905407094467) internal successors, (111720), 40003 states have internal predecessors, (111720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40004 states to 40004 states and 111720 transitions. [2022-03-03 17:01:17,113 INFO L78 Accepts]: Start accepts. Automaton has 40004 states and 111720 transitions. Word has length 231 [2022-03-03 17:01:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:17,113 INFO L470 AbstractCegarLoop]: Abstraction has 40004 states and 111720 transitions. [2022-03-03 17:01:17,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 40004 states and 111720 transitions. [2022-03-03 17:01:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:17,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:17,152 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:17,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-03 17:01:17,152 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1222850758, now seen corresponding path program 70 times [2022-03-03 17:01:17,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:17,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145311228] [2022-03-03 17:01:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:17,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:17,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145311228] [2022-03-03 17:01:17,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145311228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:17,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:17,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:17,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864436103] [2022-03-03 17:01:17,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:17,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:17,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:17,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:17,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:17,534 INFO L87 Difference]: Start difference. First operand 40004 states and 111720 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:19,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:19,165 INFO L93 Difference]: Finished difference Result 54062 states and 149816 transitions. [2022-03-03 17:01:19,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 17:01:19,166 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:19,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:19,298 INFO L225 Difference]: With dead ends: 54062 [2022-03-03 17:01:19,299 INFO L226 Difference]: Without dead ends: 53446 [2022-03-03 17:01:19,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=637, Invalid=2119, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:01:19,299 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 1644 mSDsluCounter, 4831 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 5204 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:19,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1644 Valid, 5204 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:01:19,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53446 states. [2022-03-03 17:01:20,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53446 to 40004. [2022-03-03 17:01:20,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40004 states, 40003 states have (on average 2.7918906082043846) internal successors, (111684), 40003 states have internal predecessors, (111684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40004 states to 40004 states and 111684 transitions. [2022-03-03 17:01:20,530 INFO L78 Accepts]: Start accepts. Automaton has 40004 states and 111684 transitions. Word has length 231 [2022-03-03 17:01:20,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:20,530 INFO L470 AbstractCegarLoop]: Abstraction has 40004 states and 111684 transitions. [2022-03-03 17:01:20,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 40004 states and 111684 transitions. [2022-03-03 17:01:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:20,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:20,581 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:20,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-03 17:01:20,582 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1531908872, now seen corresponding path program 71 times [2022-03-03 17:01:20,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:20,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278777217] [2022-03-03 17:01:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:20,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:20,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278777217] [2022-03-03 17:01:20,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278777217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:20,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:20,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:20,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061729826] [2022-03-03 17:01:20,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:20,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:20,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:20,975 INFO L87 Difference]: Start difference. First operand 40004 states and 111684 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:22,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:22,584 INFO L93 Difference]: Finished difference Result 55392 states and 153952 transitions. [2022-03-03 17:01:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:22,585 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:22,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:22,709 INFO L225 Difference]: With dead ends: 55392 [2022-03-03 17:01:22,709 INFO L226 Difference]: Without dead ends: 55392 [2022-03-03 17:01:22,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=767, Invalid=2313, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 17:01:22,710 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1487 mSDsluCounter, 4216 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 4584 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:22,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 4584 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:01:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55392 states. [2022-03-03 17:01:23,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55392 to 40008. [2022-03-03 17:01:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40008 states, 40007 states have (on average 2.7919864023795835) internal successors, (111699), 40007 states have internal predecessors, (111699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:23,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40008 states to 40008 states and 111699 transitions. [2022-03-03 17:01:23,674 INFO L78 Accepts]: Start accepts. Automaton has 40008 states and 111699 transitions. Word has length 231 [2022-03-03 17:01:23,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:23,675 INFO L470 AbstractCegarLoop]: Abstraction has 40008 states and 111699 transitions. [2022-03-03 17:01:23,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:23,675 INFO L276 IsEmpty]: Start isEmpty. Operand 40008 states and 111699 transitions. [2022-03-03 17:01:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:23,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:23,718 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:23,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-03 17:01:23,719 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:23,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:23,719 INFO L85 PathProgramCache]: Analyzing trace with hash 673753678, now seen corresponding path program 72 times [2022-03-03 17:01:23,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:23,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107583483] [2022-03-03 17:01:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:23,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:24,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:24,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107583483] [2022-03-03 17:01:24,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107583483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:24,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:24,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:24,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577072463] [2022-03-03 17:01:24,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:24,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:24,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:24,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:24,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:24,121 INFO L87 Difference]: Start difference. First operand 40008 states and 111699 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:25,893 INFO L93 Difference]: Finished difference Result 54720 states and 152056 transitions. [2022-03-03 17:01:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:01:25,894 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:25,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:26,042 INFO L225 Difference]: With dead ends: 54720 [2022-03-03 17:01:26,043 INFO L226 Difference]: Without dead ends: 54720 [2022-03-03 17:01:26,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=744, Invalid=2226, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:01:26,043 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1432 mSDsluCounter, 4496 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 4856 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:26,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 4856 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:01:26,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54720 states. [2022-03-03 17:01:27,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54720 to 40012. [2022-03-03 17:01:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40012 states, 40011 states have (on average 2.792182149908775) internal successors, (111718), 40011 states have internal predecessors, (111718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40012 states to 40012 states and 111718 transitions. [2022-03-03 17:01:27,216 INFO L78 Accepts]: Start accepts. Automaton has 40012 states and 111718 transitions. Word has length 231 [2022-03-03 17:01:27,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:27,217 INFO L470 AbstractCegarLoop]: Abstraction has 40012 states and 111718 transitions. [2022-03-03 17:01:27,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:27,217 INFO L276 IsEmpty]: Start isEmpty. Operand 40012 states and 111718 transitions. [2022-03-03 17:01:27,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:27,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:27,268 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:27,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-03 17:01:27,268 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1800909564, now seen corresponding path program 73 times [2022-03-03 17:01:27,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:27,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910908294] [2022-03-03 17:01:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:27,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:27,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:27,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910908294] [2022-03-03 17:01:27,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910908294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:27,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:27,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:27,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663834454] [2022-03-03 17:01:27,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:27,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:27,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:27,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:27,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:27,680 INFO L87 Difference]: Start difference. First operand 40012 states and 111718 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:29,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:29,446 INFO L93 Difference]: Finished difference Result 53876 states and 149701 transitions. [2022-03-03 17:01:29,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:29,446 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:29,580 INFO L225 Difference]: With dead ends: 53876 [2022-03-03 17:01:29,580 INFO L226 Difference]: Without dead ends: 53876 [2022-03-03 17:01:29,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=779, Invalid=2301, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 17:01:29,581 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1616 mSDsluCounter, 4376 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 4720 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1616 Valid, 4720 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:01:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53876 states. [2022-03-03 17:01:30,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53876 to 39956. [2022-03-03 17:01:30,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39956 states, 39955 states have (on average 2.791540483043424) internal successors, (111536), 39955 states have internal predecessors, (111536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39956 states to 39956 states and 111536 transitions. [2022-03-03 17:01:30,608 INFO L78 Accepts]: Start accepts. Automaton has 39956 states and 111536 transitions. Word has length 231 [2022-03-03 17:01:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:30,608 INFO L470 AbstractCegarLoop]: Abstraction has 39956 states and 111536 transitions. [2022-03-03 17:01:30,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 39956 states and 111536 transitions. [2022-03-03 17:01:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:30,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:30,843 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:30,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-03 17:01:30,843 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 357034238, now seen corresponding path program 74 times [2022-03-03 17:01:30,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:30,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381869541] [2022-03-03 17:01:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:30,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:31,318 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:31,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:31,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381869541] [2022-03-03 17:01:31,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381869541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:31,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:31,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:31,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727461577] [2022-03-03 17:01:31,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:31,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:31,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:31,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:31,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:31,320 INFO L87 Difference]: Start difference. First operand 39956 states and 111536 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:33,139 INFO L93 Difference]: Finished difference Result 51515 states and 143032 transitions. [2022-03-03 17:01:33,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 17:01:33,140 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:33,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:33,246 INFO L225 Difference]: With dead ends: 51515 [2022-03-03 17:01:33,246 INFO L226 Difference]: Without dead ends: 51515 [2022-03-03 17:01:33,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=825, Invalid=2481, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:01:33,247 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 1378 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:33,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1378 Valid, 5006 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:01:33,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51515 states. [2022-03-03 17:01:33,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51515 to 39956. [2022-03-03 17:01:33,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39956 states, 39955 states have (on average 2.791540483043424) internal successors, (111536), 39955 states have internal predecessors, (111536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39956 states to 39956 states and 111536 transitions. [2022-03-03 17:01:34,068 INFO L78 Accepts]: Start accepts. Automaton has 39956 states and 111536 transitions. Word has length 231 [2022-03-03 17:01:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:34,068 INFO L470 AbstractCegarLoop]: Abstraction has 39956 states and 111536 transitions. [2022-03-03 17:01:34,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 39956 states and 111536 transitions. [2022-03-03 17:01:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:34,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:34,114 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:34,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-03 17:01:34,115 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:34,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:34,115 INFO L85 PathProgramCache]: Analyzing trace with hash -501120956, now seen corresponding path program 75 times [2022-03-03 17:01:34,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:34,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667028638] [2022-03-03 17:01:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:34,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:34,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667028638] [2022-03-03 17:01:34,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667028638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:34,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:34,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:34,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135025950] [2022-03-03 17:01:34,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:34,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:34,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:34,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:34,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:34,594 INFO L87 Difference]: Start difference. First operand 39956 states and 111536 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:36,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:36,350 INFO L93 Difference]: Finished difference Result 52191 states and 145015 transitions. [2022-03-03 17:01:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:36,351 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:36,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:36,488 INFO L225 Difference]: With dead ends: 52191 [2022-03-03 17:01:36,488 INFO L226 Difference]: Without dead ends: 52191 [2022-03-03 17:01:36,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=802, Invalid=2390, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 17:01:36,489 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1490 mSDsluCounter, 4720 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 5058 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:36,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1490 Valid, 5058 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:01:36,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52191 states. [2022-03-03 17:01:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52191 to 39960. [2022-03-03 17:01:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39960 states, 39959 states have (on average 2.7917365299431918) internal successors, (111555), 39959 states have internal predecessors, (111555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39960 states to 39960 states and 111555 transitions. [2022-03-03 17:01:37,663 INFO L78 Accepts]: Start accepts. Automaton has 39960 states and 111555 transitions. Word has length 231 [2022-03-03 17:01:37,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:37,663 INFO L470 AbstractCegarLoop]: Abstraction has 39960 states and 111555 transitions. [2022-03-03 17:01:37,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:37,663 INFO L276 IsEmpty]: Start isEmpty. Operand 39960 states and 111555 transitions. [2022-03-03 17:01:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:37,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:37,708 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:37,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-03 17:01:37,708 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:37,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:37,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1319183098, now seen corresponding path program 76 times [2022-03-03 17:01:37,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:37,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571148858] [2022-03-03 17:01:37,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:37,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:38,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:38,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571148858] [2022-03-03 17:01:38,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571148858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:38,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:38,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:38,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766485588] [2022-03-03 17:01:38,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:38,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:38,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:38,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:38,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:38,166 INFO L87 Difference]: Start difference. First operand 39960 states and 111555 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:39,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:39,748 INFO L93 Difference]: Finished difference Result 51599 states and 143369 transitions. [2022-03-03 17:01:39,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 17:01:39,749 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:39,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:39,877 INFO L225 Difference]: With dead ends: 51599 [2022-03-03 17:01:39,877 INFO L226 Difference]: Without dead ends: 51599 [2022-03-03 17:01:39,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=832, Invalid=2474, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:01:39,878 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 1710 mSDsluCounter, 4224 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:39,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1710 Valid, 4551 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:01:39,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51599 states. [2022-03-03 17:01:40,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51599 to 39952. [2022-03-03 17:01:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39952 states, 39951 states have (on average 2.791444519536432) internal successors, (111521), 39951 states have internal predecessors, (111521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39952 states to 39952 states and 111521 transitions. [2022-03-03 17:01:40,899 INFO L78 Accepts]: Start accepts. Automaton has 39952 states and 111521 transitions. Word has length 231 [2022-03-03 17:01:40,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:40,899 INFO L470 AbstractCegarLoop]: Abstraction has 39952 states and 111521 transitions. [2022-03-03 17:01:40,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:40,899 INFO L276 IsEmpty]: Start isEmpty. Operand 39952 states and 111521 transitions. [2022-03-03 17:01:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:40,949 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:40,963 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:40,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-03 17:01:40,963 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:40,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1286083692, now seen corresponding path program 77 times [2022-03-03 17:01:40,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:40,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827537809] [2022-03-03 17:01:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:40,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:41,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:41,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827537809] [2022-03-03 17:01:41,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827537809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:41,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:41,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:41,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096014750] [2022-03-03 17:01:41,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:41,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:41,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:41,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:41,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:41,661 INFO L87 Difference]: Start difference. First operand 39952 states and 111521 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:43,258 INFO L93 Difference]: Finished difference Result 50979 states and 141534 transitions. [2022-03-03 17:01:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:01:43,268 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:43,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:43,414 INFO L225 Difference]: With dead ends: 50979 [2022-03-03 17:01:43,415 INFO L226 Difference]: Without dead ends: 50979 [2022-03-03 17:01:43,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=741, Invalid=2229, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:01:43,415 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 1194 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 4020 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:43,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 4020 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:01:43,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50979 states. [2022-03-03 17:01:44,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50979 to 39952. [2022-03-03 17:01:44,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39952 states, 39951 states have (on average 2.791444519536432) internal successors, (111521), 39951 states have internal predecessors, (111521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39952 states to 39952 states and 111521 transitions. [2022-03-03 17:01:44,245 INFO L78 Accepts]: Start accepts. Automaton has 39952 states and 111521 transitions. Word has length 231 [2022-03-03 17:01:44,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:44,246 INFO L470 AbstractCegarLoop]: Abstraction has 39952 states and 111521 transitions. [2022-03-03 17:01:44,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:44,246 INFO L276 IsEmpty]: Start isEmpty. Operand 39952 states and 111521 transitions. [2022-03-03 17:01:44,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:44,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:44,285 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:44,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-03 17:01:44,285 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:44,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:44,286 INFO L85 PathProgramCache]: Analyzing trace with hash 534220362, now seen corresponding path program 78 times [2022-03-03 17:01:44,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:44,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414355751] [2022-03-03 17:01:44,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:44,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:44,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:44,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414355751] [2022-03-03 17:01:44,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414355751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:44,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:44,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:44,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889700770] [2022-03-03 17:01:44,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:44,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:44,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:44,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:44,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:44,743 INFO L87 Difference]: Start difference. First operand 39952 states and 111521 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:46,487 INFO L93 Difference]: Finished difference Result 51031 states and 141687 transitions. [2022-03-03 17:01:46,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:46,487 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:46,622 INFO L225 Difference]: With dead ends: 51031 [2022-03-03 17:01:46,622 INFO L226 Difference]: Without dead ends: 51031 [2022-03-03 17:01:46,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=771, Invalid=2309, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 17:01:46,623 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 1435 mSDsluCounter, 4634 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 4955 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:46,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 4955 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:01:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51031 states. [2022-03-03 17:01:47,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51031 to 39948. [2022-03-03 17:01:47,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39948 states, 39947 states have (on average 2.7912484041354797) internal successors, (111502), 39947 states have internal predecessors, (111502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39948 states to 39948 states and 111502 transitions. [2022-03-03 17:01:47,834 INFO L78 Accepts]: Start accepts. Automaton has 39948 states and 111502 transitions. Word has length 231 [2022-03-03 17:01:47,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:47,834 INFO L470 AbstractCegarLoop]: Abstraction has 39948 states and 111502 transitions. [2022-03-03 17:01:47,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:47,834 INFO L276 IsEmpty]: Start isEmpty. Operand 39948 states and 111502 transitions. [2022-03-03 17:01:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-03 17:01:47,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:47,881 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:47,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-03 17:01:47,881 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:47,881 INFO L85 PathProgramCache]: Analyzing trace with hash 780332350, now seen corresponding path program 79 times [2022-03-03 17:01:47,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:47,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351865662] [2022-03-03 17:01:47,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:47,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:48,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:48,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351865662] [2022-03-03 17:01:48,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351865662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:48,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:48,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:48,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237826664] [2022-03-03 17:01:48,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:48,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:48,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:48,359 INFO L87 Difference]: Start difference. First operand 39948 states and 111502 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:50,072 INFO L93 Difference]: Finished difference Result 49883 states and 138457 transitions. [2022-03-03 17:01:50,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 17:01:50,072 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-03-03 17:01:50,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:50,188 INFO L225 Difference]: With dead ends: 49883 [2022-03-03 17:01:50,188 INFO L226 Difference]: Without dead ends: 49883 [2022-03-03 17:01:50,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:01:50,188 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1348 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 4704 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:50,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1348 Valid, 4704 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:01:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49883 states. [2022-03-03 17:01:50,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49883 to 39936. [2022-03-03 17:01:51,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39936 states, 39935 states have (on average 2.7911606360335544) internal successors, (111465), 39935 states have internal predecessors, (111465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39936 states to 39936 states and 111465 transitions. [2022-03-03 17:01:51,130 INFO L78 Accepts]: Start accepts. Automaton has 39936 states and 111465 transitions. Word has length 231 [2022-03-03 17:01:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:51,130 INFO L470 AbstractCegarLoop]: Abstraction has 39936 states and 111465 transitions. [2022-03-03 17:01:51,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 39936 states and 111465 transitions. [2022-03-03 17:01:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:01:51,186 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:51,186 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:51,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-03 17:01:51,187 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:51,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:51,187 INFO L85 PathProgramCache]: Analyzing trace with hash 767593789, now seen corresponding path program 1 times [2022-03-03 17:01:51,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:51,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274980168] [2022-03-03 17:01:51,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:51,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-03 17:01:51,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:51,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274980168] [2022-03-03 17:01:51,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274980168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:51,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:51,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:51,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181424366] [2022-03-03 17:01:51,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:51,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:51,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:51,698 INFO L87 Difference]: Start difference. First operand 39936 states and 111465 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:53,376 INFO L93 Difference]: Finished difference Result 48586 states and 134444 transitions. [2022-03-03 17:01:53,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 17:01:53,376 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:01:53,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:53,480 INFO L225 Difference]: With dead ends: 48586 [2022-03-03 17:01:53,480 INFO L226 Difference]: Without dead ends: 47683 [2022-03-03 17:01:53,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=577, Invalid=2075, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:01:53,481 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1608 mSDsluCounter, 4221 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:53,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 4498 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:01:53,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47683 states. [2022-03-03 17:01:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47683 to 39803. [2022-03-03 17:01:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39803 states, 39802 states have (on average 2.7928244811818503) internal successors, (111160), 39802 states have internal predecessors, (111160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39803 states to 39803 states and 111160 transitions. [2022-03-03 17:01:54,512 INFO L78 Accepts]: Start accepts. Automaton has 39803 states and 111160 transitions. Word has length 243 [2022-03-03 17:01:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:54,512 INFO L470 AbstractCegarLoop]: Abstraction has 39803 states and 111160 transitions. [2022-03-03 17:01:54,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,512 INFO L276 IsEmpty]: Start isEmpty. Operand 39803 states and 111160 transitions. [2022-03-03 17:01:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:01:54,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:54,565 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:54,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-03 17:01:54,565 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:54,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash -99411609, now seen corresponding path program 1 times [2022-03-03 17:01:54,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:54,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720833356] [2022-03-03 17:01:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:54,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-03 17:01:55,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:55,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720833356] [2022-03-03 17:01:55,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720833356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:55,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:55,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:01:55,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489562941] [2022-03-03 17:01:55,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:55,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:01:55,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:55,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:01:55,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:55,096 INFO L87 Difference]: Start difference. First operand 39803 states and 111160 transitions. Second operand has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:57,368 INFO L93 Difference]: Finished difference Result 54881 states and 152241 transitions. [2022-03-03 17:01:57,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:01:57,368 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:01:57,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:57,499 INFO L225 Difference]: With dead ends: 54881 [2022-03-03 17:01:57,499 INFO L226 Difference]: Without dead ends: 54881 [2022-03-03 17:01:57,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=964, Invalid=3326, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:01:57,500 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 2135 mSDsluCounter, 5328 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 5734 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:57,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2135 Valid, 5734 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:01:57,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54881 states. [2022-03-03 17:01:58,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54881 to 40331. [2022-03-03 17:01:58,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40331 states, 40330 states have (on average 2.792263823456484) internal successors, (112612), 40330 states have internal predecessors, (112612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40331 states to 40331 states and 112612 transitions. [2022-03-03 17:01:58,899 INFO L78 Accepts]: Start accepts. Automaton has 40331 states and 112612 transitions. Word has length 243 [2022-03-03 17:01:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:58,900 INFO L470 AbstractCegarLoop]: Abstraction has 40331 states and 112612 transitions. [2022-03-03 17:01:58,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 40331 states and 112612 transitions. [2022-03-03 17:01:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:01:58,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:58,962 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:58,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-03 17:01:58,962 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:58,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash -594885877, now seen corresponding path program 2 times [2022-03-03 17:01:58,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:58,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919944712] [2022-03-03 17:01:58,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:58,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:01:59,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:59,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919944712] [2022-03-03 17:01:59,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919944712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:59,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:59,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:01:59,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478685279] [2022-03-03 17:01:59,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:59,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:01:59,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:59,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:01:59,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:01:59,411 INFO L87 Difference]: Start difference. First operand 40331 states and 112612 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:01,321 INFO L93 Difference]: Finished difference Result 50002 states and 138530 transitions. [2022-03-03 17:02:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:02:01,322 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:01,448 INFO L225 Difference]: With dead ends: 50002 [2022-03-03 17:02:01,449 INFO L226 Difference]: Without dead ends: 50002 [2022-03-03 17:02:01,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1009, Invalid=3547, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 17:02:01,449 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 2321 mSDsluCounter, 4793 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:01,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2321 Valid, 5216 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:01,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50002 states. [2022-03-03 17:02:02,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50002 to 40514. [2022-03-03 17:02:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40514 states, 40513 states have (on average 2.7924123120973516) internal successors, (113129), 40513 states have internal predecessors, (113129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40514 states to 40514 states and 113129 transitions. [2022-03-03 17:02:02,491 INFO L78 Accepts]: Start accepts. Automaton has 40514 states and 113129 transitions. Word has length 243 [2022-03-03 17:02:02,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:02,491 INFO L470 AbstractCegarLoop]: Abstraction has 40514 states and 113129 transitions. [2022-03-03 17:02:02,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,492 INFO L276 IsEmpty]: Start isEmpty. Operand 40514 states and 113129 transitions. [2022-03-03 17:02:02,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:02,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:02,549 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:02,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-03 17:02:02,550 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash -602588841, now seen corresponding path program 3 times [2022-03-03 17:02:02,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:02,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725336009] [2022-03-03 17:02:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:02,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:03,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:03,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725336009] [2022-03-03 17:02:03,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725336009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:03,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:03,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:02:03,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612508399] [2022-03-03 17:02:03,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:03,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:02:03,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:02:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:02:03,367 INFO L87 Difference]: Start difference. First operand 40514 states and 113129 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:05,853 INFO L93 Difference]: Finished difference Result 53524 states and 148498 transitions. [2022-03-03 17:02:05,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:02:05,854 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:05,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:05,999 INFO L225 Difference]: With dead ends: 53524 [2022-03-03 17:02:06,000 INFO L226 Difference]: Without dead ends: 53524 [2022-03-03 17:02:06,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=954, Invalid=3468, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:02:06,000 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 2216 mSDsluCounter, 5406 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:06,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2216 Valid, 5824 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:02:06,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53524 states. [2022-03-03 17:02:06,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53524 to 40697. [2022-03-03 17:02:06,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40697 states, 40696 states have (on average 2.7925594653037153) internal successors, (113646), 40696 states have internal predecessors, (113646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40697 states to 40697 states and 113646 transitions. [2022-03-03 17:02:06,923 INFO L78 Accepts]: Start accepts. Automaton has 40697 states and 113646 transitions. Word has length 243 [2022-03-03 17:02:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:06,924 INFO L470 AbstractCegarLoop]: Abstraction has 40697 states and 113646 transitions. [2022-03-03 17:02:06,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 40697 states and 113646 transitions. [2022-03-03 17:02:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:06,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:06,980 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:06,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-03 17:02:06,980 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2022598195, now seen corresponding path program 4 times [2022-03-03 17:02:06,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:06,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021421281] [2022-03-03 17:02:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:07,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:07,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021421281] [2022-03-03 17:02:07,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021421281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:07,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:07,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:02:07,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115234352] [2022-03-03 17:02:07,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:07,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:02:07,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:07,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:02:07,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:02:07,700 INFO L87 Difference]: Start difference. First operand 40697 states and 113646 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:10,004 INFO L93 Difference]: Finished difference Result 61090 states and 169148 transitions. [2022-03-03 17:02:10,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:02:10,005 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:10,161 INFO L225 Difference]: With dead ends: 61090 [2022-03-03 17:02:10,162 INFO L226 Difference]: Without dead ends: 61090 [2022-03-03 17:02:10,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=984, Invalid=3572, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 17:02:10,162 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 2374 mSDsluCounter, 5574 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 6009 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:10,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2374 Valid, 6009 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:02:10,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61090 states. [2022-03-03 17:02:11,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61090 to 42344. [2022-03-03 17:02:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42344 states, 42343 states have (on average 2.79382660652292) internal successors, (118299), 42343 states have internal predecessors, (118299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:11,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42344 states to 42344 states and 118299 transitions. [2022-03-03 17:02:11,220 INFO L78 Accepts]: Start accepts. Automaton has 42344 states and 118299 transitions. Word has length 243 [2022-03-03 17:02:11,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:11,220 INFO L470 AbstractCegarLoop]: Abstraction has 42344 states and 118299 transitions. [2022-03-03 17:02:11,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:11,220 INFO L276 IsEmpty]: Start isEmpty. Operand 42344 states and 118299 transitions. [2022-03-03 17:02:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:11,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:11,281 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:11,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-03 17:02:11,282 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:11,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:11,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1475734629, now seen corresponding path program 5 times [2022-03-03 17:02:11,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:11,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720272929] [2022-03-03 17:02:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:11,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:12,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:12,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720272929] [2022-03-03 17:02:12,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720272929] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:02:12,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036745476] [2022-03-03 17:02:12,060 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 17:02:12,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:02:12,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:02:12,063 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:02:12,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-03 17:02:12,535 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-03-03 17:02:12,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:02:12,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-03 17:02:12,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:02:14,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:02:14,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:02:14,064 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:02:14,065 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2022-03-03 17:02:14,427 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:02:14,428 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2022-03-03 17:02:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:14,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:02:15,171 INFO L353 Elim1Store]: treesize reduction 27, result has 68.2 percent of original size [2022-03-03 17:02:15,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 110 [2022-03-03 17:02:15,197 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:02:15,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 50 [2022-03-03 17:02:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:16,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036745476] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:02:16,580 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:02:16,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 21] total 60 [2022-03-03 17:02:16,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982083518] [2022-03-03 17:02:16,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:02:16,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-03-03 17:02:16,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:16,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-03-03 17:02:16,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=3279, Unknown=15, NotChecked=0, Total=3540 [2022-03-03 17:02:16,581 INFO L87 Difference]: Start difference. First operand 42344 states and 118299 transitions. Second operand has 60 states, 60 states have (on average 7.616666666666666) internal successors, (457), 60 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:21,629 INFO L93 Difference]: Finished difference Result 67757 states and 187754 transitions. [2022-03-03 17:02:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 17:02:21,630 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 7.616666666666666) internal successors, (457), 60 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:21,770 INFO L225 Difference]: With dead ends: 67757 [2022-03-03 17:02:21,770 INFO L226 Difference]: Without dead ends: 67757 [2022-03-03 17:02:21,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 457 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2557 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2391, Invalid=10026, Unknown=15, NotChecked=0, Total=12432 [2022-03-03 17:02:21,774 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 4083 mSDsluCounter, 13175 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 13445 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 243 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:21,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4083 Valid, 13445 Invalid, 3440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3167 Invalid, 0 Unknown, 243 Unchecked, 1.3s Time] [2022-03-03 17:02:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67757 states. [2022-03-03 17:02:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67757 to 44704. [2022-03-03 17:02:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44704 states, 44703 states have (on average 2.7939735588215555) internal successors, (124899), 44703 states have internal predecessors, (124899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44704 states to 44704 states and 124899 transitions. [2022-03-03 17:02:23,003 INFO L78 Accepts]: Start accepts. Automaton has 44704 states and 124899 transitions. Word has length 243 [2022-03-03 17:02:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:23,003 INFO L470 AbstractCegarLoop]: Abstraction has 44704 states and 124899 transitions. [2022-03-03 17:02:23,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 7.616666666666666) internal successors, (457), 60 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 44704 states and 124899 transitions. [2022-03-03 17:02:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:23,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:23,052 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:23,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-03 17:02:23,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:02:23,268 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:23,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:23,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1306387295, now seen corresponding path program 6 times [2022-03-03 17:02:23,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:23,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146392381] [2022-03-03 17:02:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:23,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:23,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:23,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146392381] [2022-03-03 17:02:23,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146392381] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:02:23,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397749788] [2022-03-03 17:02:23,852 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 17:02:23,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:02:23,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:02:23,853 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:02:23,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-03 17:02:24,290 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-03 17:02:24,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:02:24,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 46 conjunts are in the unsatisfiable core [2022-03-03 17:02:24,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:02:25,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:02:25,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:02:25,735 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:02:25,736 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2022-03-03 17:02:26,090 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-03 17:02:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:26,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:02:26,484 INFO L353 Elim1Store]: treesize reduction 27, result has 68.2 percent of original size [2022-03-03 17:02:26,485 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 110 [2022-03-03 17:02:26,500 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:02:26,501 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 50 [2022-03-03 17:02:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:27,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397749788] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:02:27,781 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:02:27,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 21] total 60 [2022-03-03 17:02:27,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024272330] [2022-03-03 17:02:27,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:02:27,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-03-03 17:02:27,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-03-03 17:02:27,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=3274, Unknown=16, NotChecked=0, Total=3540 [2022-03-03 17:02:27,782 INFO L87 Difference]: Start difference. First operand 44704 states and 124899 transitions. Second operand has 60 states, 60 states have (on average 7.966666666666667) internal successors, (478), 60 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:32,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:32,095 INFO L93 Difference]: Finished difference Result 63432 states and 175694 transitions. [2022-03-03 17:02:32,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 17:02:32,096 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 7.966666666666667) internal successors, (478), 60 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:32,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:32,243 INFO L225 Difference]: With dead ends: 63432 [2022-03-03 17:02:32,243 INFO L226 Difference]: Without dead ends: 63432 [2022-03-03 17:02:32,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 455 SyntacticMatches, 2 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2441 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2232, Invalid=9524, Unknown=16, NotChecked=0, Total=11772 [2022-03-03 17:02:32,244 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 4880 mSDsluCounter, 11434 mSDsCounter, 0 mSdLazyCounter, 2711 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 11724 SdHoareTripleChecker+Invalid, 2988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 236 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:32,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4880 Valid, 11724 Invalid, 2988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2711 Invalid, 0 Unknown, 236 Unchecked, 1.1s Time] [2022-03-03 17:02:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63432 states. [2022-03-03 17:02:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63432 to 42344. [2022-03-03 17:02:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42344 states, 42343 states have (on average 2.79382660652292) internal successors, (118299), 42343 states have internal predecessors, (118299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42344 states to 42344 states and 118299 transitions. [2022-03-03 17:02:33,292 INFO L78 Accepts]: Start accepts. Automaton has 42344 states and 118299 transitions. Word has length 243 [2022-03-03 17:02:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:33,293 INFO L470 AbstractCegarLoop]: Abstraction has 42344 states and 118299 transitions. [2022-03-03 17:02:33,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 7.966666666666667) internal successors, (478), 60 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 42344 states and 118299 transitions. [2022-03-03 17:02:33,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:33,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:33,552 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:33,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-03 17:02:33,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable253 [2022-03-03 17:02:33,770 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:33,771 INFO L85 PathProgramCache]: Analyzing trace with hash 444319209, now seen corresponding path program 7 times [2022-03-03 17:02:33,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:33,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51062244] [2022-03-03 17:02:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:33,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-03 17:02:34,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:34,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51062244] [2022-03-03 17:02:34,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51062244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:34,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:34,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:02:34,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140752715] [2022-03-03 17:02:34,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:34,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:02:34,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:34,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:02:34,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:02:34,307 INFO L87 Difference]: Start difference. First operand 42344 states and 118299 transitions. Second operand has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:36,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:36,720 INFO L93 Difference]: Finished difference Result 60394 states and 167722 transitions. [2022-03-03 17:02:36,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:02:36,721 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:36,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:36,847 INFO L225 Difference]: With dead ends: 60394 [2022-03-03 17:02:36,847 INFO L226 Difference]: Without dead ends: 60394 [2022-03-03 17:02:36,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=943, Invalid=3217, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:02:36,848 INFO L933 BasicCegarLoop]: 478 mSDtfsCounter, 1961 mSDsluCounter, 5424 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 5805 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:36,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1961 Valid, 5805 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:02:36,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60394 states. [2022-03-03 17:02:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60394 to 42908. [2022-03-03 17:02:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42908 states, 42907 states have (on average 2.7932505185634047) internal successors, (119850), 42907 states have internal predecessors, (119850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42908 states to 42908 states and 119850 transitions. [2022-03-03 17:02:37,897 INFO L78 Accepts]: Start accepts. Automaton has 42908 states and 119850 transitions. Word has length 243 [2022-03-03 17:02:37,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:37,897 INFO L470 AbstractCegarLoop]: Abstraction has 42908 states and 119850 transitions. [2022-03-03 17:02:37,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 42908 states and 119850 transitions. [2022-03-03 17:02:37,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:37,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:37,951 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:37,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-03 17:02:37,952 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:37,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:37,952 INFO L85 PathProgramCache]: Analyzing trace with hash -51155059, now seen corresponding path program 8 times [2022-03-03 17:02:37,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:37,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419135113] [2022-03-03 17:02:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:37,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:38,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:38,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419135113] [2022-03-03 17:02:38,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419135113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:38,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:38,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:02:38,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892897002] [2022-03-03 17:02:38,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:38,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:02:38,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:38,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:02:38,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:02:38,531 INFO L87 Difference]: Start difference. First operand 42908 states and 119850 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:41,191 INFO L93 Difference]: Finished difference Result 55577 states and 154169 transitions. [2022-03-03 17:02:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:02:41,193 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:41,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:41,316 INFO L225 Difference]: With dead ends: 55577 [2022-03-03 17:02:41,316 INFO L226 Difference]: Without dead ends: 55577 [2022-03-03 17:02:41,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=990, Invalid=3432, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:02:41,317 INFO L933 BasicCegarLoop]: 484 mSDtfsCounter, 1988 mSDsluCounter, 5514 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 5898 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:41,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 5898 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:02:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55577 states. [2022-03-03 17:02:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55577 to 42860. [2022-03-03 17:02:42,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42860 states, 42859 states have (on average 2.7932989570451947) internal successors, (119718), 42859 states have internal predecessors, (119718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42860 states to 42860 states and 119718 transitions. [2022-03-03 17:02:42,513 INFO L78 Accepts]: Start accepts. Automaton has 42860 states and 119718 transitions. Word has length 243 [2022-03-03 17:02:42,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:42,513 INFO L470 AbstractCegarLoop]: Abstraction has 42860 states and 119718 transitions. [2022-03-03 17:02:42,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 42860 states and 119718 transitions. [2022-03-03 17:02:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:42,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:42,564 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:42,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-03 17:02:42,567 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:42,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:42,568 INFO L85 PathProgramCache]: Analyzing trace with hash -58858023, now seen corresponding path program 9 times [2022-03-03 17:02:42,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:42,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456253963] [2022-03-03 17:02:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:42,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:43,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:43,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456253963] [2022-03-03 17:02:43,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456253963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:43,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:43,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:02:43,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044489327] [2022-03-03 17:02:43,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:43,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:02:43,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:43,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:02:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:02:43,182 INFO L87 Difference]: Start difference. First operand 42860 states and 119718 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:45,628 INFO L93 Difference]: Finished difference Result 59099 states and 164137 transitions. [2022-03-03 17:02:45,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:02:45,628 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:45,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:45,758 INFO L225 Difference]: With dead ends: 59099 [2022-03-03 17:02:45,759 INFO L226 Difference]: Without dead ends: 59099 [2022-03-03 17:02:45,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1026, Invalid=3666, Unknown=0, NotChecked=0, Total=4692 [2022-03-03 17:02:45,759 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 2029 mSDsluCounter, 6090 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 6480 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:45,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2029 Valid, 6480 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:02:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59099 states. [2022-03-03 17:02:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59099 to 42812. [2022-03-03 17:02:46,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42812 states, 42811 states have (on average 2.793347504146131) internal successors, (119586), 42811 states have internal predecessors, (119586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42812 states to 42812 states and 119586 transitions. [2022-03-03 17:02:46,881 INFO L78 Accepts]: Start accepts. Automaton has 42812 states and 119586 transitions. Word has length 243 [2022-03-03 17:02:46,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:46,882 INFO L470 AbstractCegarLoop]: Abstraction has 42812 states and 119586 transitions. [2022-03-03 17:02:46,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:46,882 INFO L276 IsEmpty]: Start isEmpty. Operand 42812 states and 119586 transitions. [2022-03-03 17:02:46,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:46,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:46,937 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:46,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-03 17:02:46,937 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:46,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1478867377, now seen corresponding path program 10 times [2022-03-03 17:02:46,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:46,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196048644] [2022-03-03 17:02:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:46,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:47,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:47,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196048644] [2022-03-03 17:02:47,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196048644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:47,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:47,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:02:47,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087460433] [2022-03-03 17:02:47,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:47,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:02:47,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:47,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:02:47,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:02:47,364 INFO L87 Difference]: Start difference. First operand 42812 states and 119586 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:49,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:49,741 INFO L93 Difference]: Finished difference Result 72635 states and 201684 transitions. [2022-03-03 17:02:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:02:49,742 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:49,897 INFO L225 Difference]: With dead ends: 72635 [2022-03-03 17:02:49,897 INFO L226 Difference]: Without dead ends: 72635 [2022-03-03 17:02:49,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1090, Invalid=3880, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 17:02:49,898 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 2351 mSDsluCounter, 5985 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 6372 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:49,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2351 Valid, 6372 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:02:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72635 states. [2022-03-03 17:02:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72635 to 42380. [2022-03-03 17:02:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42380 states, 42379 states have (on average 2.793789376813988) internal successors, (118398), 42379 states have internal predecessors, (118398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42380 states to 42380 states and 118398 transitions. [2022-03-03 17:02:51,036 INFO L78 Accepts]: Start accepts. Automaton has 42380 states and 118398 transitions. Word has length 243 [2022-03-03 17:02:51,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:51,036 INFO L470 AbstractCegarLoop]: Abstraction has 42380 states and 118398 transitions. [2022-03-03 17:02:51,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:51,037 INFO L276 IsEmpty]: Start isEmpty. Operand 42380 states and 118398 transitions. [2022-03-03 17:02:51,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:51,096 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:51,096 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:51,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-03 17:02:51,097 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1856192171, now seen corresponding path program 11 times [2022-03-03 17:02:51,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:51,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553092948] [2022-03-03 17:02:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:51,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-03 17:02:51,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:51,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553092948] [2022-03-03 17:02:51,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553092948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:51,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:51,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:02:51,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589974255] [2022-03-03 17:02:51,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:51,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:02:51,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:02:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:02:51,615 INFO L87 Difference]: Start difference. First operand 42380 states and 118398 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:53,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:53,885 INFO L93 Difference]: Finished difference Result 58538 states and 162626 transitions. [2022-03-03 17:02:53,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 17:02:53,886 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:54,187 INFO L225 Difference]: With dead ends: 58538 [2022-03-03 17:02:54,188 INFO L226 Difference]: Without dead ends: 58538 [2022-03-03 17:02:54,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=764, Invalid=2658, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:02:54,188 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 2085 mSDsluCounter, 4325 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:54,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2085 Valid, 4676 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58538 states. [2022-03-03 17:02:54,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58538 to 42436. [2022-03-03 17:02:55,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42436 states, 42435 states have (on average 2.794014374926358) internal successors, (118564), 42435 states have internal predecessors, (118564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42436 states to 42436 states and 118564 transitions. [2022-03-03 17:02:55,107 INFO L78 Accepts]: Start accepts. Automaton has 42436 states and 118564 transitions. Word has length 243 [2022-03-03 17:02:55,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:55,107 INFO L470 AbstractCegarLoop]: Abstraction has 42436 states and 118564 transitions. [2022-03-03 17:02:55,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,108 INFO L276 IsEmpty]: Start isEmpty. Operand 42436 states and 118564 transitions. [2022-03-03 17:02:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:55,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:55,161 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:55,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-03 17:02:55,161 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:55,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:55,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1582496843, now seen corresponding path program 12 times [2022-03-03 17:02:55,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:55,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289345821] [2022-03-03 17:02:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:02:55,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:55,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289345821] [2022-03-03 17:02:55,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289345821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:55,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:55,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:02:55,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504205580] [2022-03-03 17:02:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:55,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:02:55,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:55,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:02:55,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:02:55,763 INFO L87 Difference]: Start difference. First operand 42436 states and 118564 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:58,052 INFO L93 Difference]: Finished difference Result 54288 states and 150662 transitions. [2022-03-03 17:02:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 17:02:58,052 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:02:58,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:58,181 INFO L225 Difference]: With dead ends: 54288 [2022-03-03 17:02:58,181 INFO L226 Difference]: Without dead ends: 54288 [2022-03-03 17:02:58,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=803, Invalid=2857, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:02:58,182 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 2051 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:58,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2051 Valid, 5089 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54288 states. [2022-03-03 17:02:59,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54288 to 42388. [2022-03-03 17:02:59,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42388 states, 42387 states have (on average 2.794064217802628) internal successors, (118432), 42387 states have internal predecessors, (118432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42388 states to 42388 states and 118432 transitions. [2022-03-03 17:02:59,264 INFO L78 Accepts]: Start accepts. Automaton has 42388 states and 118432 transitions. Word has length 243 [2022-03-03 17:02:59,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:59,265 INFO L470 AbstractCegarLoop]: Abstraction has 42388 states and 118432 transitions. [2022-03-03 17:02:59,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:59,265 INFO L276 IsEmpty]: Start isEmpty. Operand 42388 states and 118432 transitions. [2022-03-03 17:02:59,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:02:59,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:59,321 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:59,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-03 17:02:59,321 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:59,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1438520043, now seen corresponding path program 13 times [2022-03-03 17:02:59,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:59,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963278530] [2022-03-03 17:02:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:59,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-03 17:02:59,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:59,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963278530] [2022-03-03 17:02:59,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963278530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:59,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:59,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:02:59,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835319738] [2022-03-03 17:02:59,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:59,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:02:59,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:59,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:02:59,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:02:59,791 INFO L87 Difference]: Start difference. First operand 42388 states and 118432 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:01,996 INFO L93 Difference]: Finished difference Result 53068 states and 147249 transitions. [2022-03-03 17:03:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 17:03:01,996 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:01,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:02,129 INFO L225 Difference]: With dead ends: 53068 [2022-03-03 17:03:02,129 INFO L226 Difference]: Without dead ends: 53016 [2022-03-03 17:03:02,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=791, Invalid=2631, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:03:02,130 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1931 mSDsluCounter, 4437 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 4763 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:02,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1931 Valid, 4763 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:03:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53016 states. [2022-03-03 17:03:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53016 to 42388. [2022-03-03 17:03:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42388 states, 42387 states have (on average 2.7939698492462313) internal successors, (118428), 42387 states have internal predecessors, (118428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42388 states to 42388 states and 118428 transitions. [2022-03-03 17:03:03,227 INFO L78 Accepts]: Start accepts. Automaton has 42388 states and 118428 transitions. Word has length 243 [2022-03-03 17:03:03,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:03,227 INFO L470 AbstractCegarLoop]: Abstraction has 42388 states and 118428 transitions. [2022-03-03 17:03:03,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 42388 states and 118428 transitions. [2022-03-03 17:03:03,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:03,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:03,284 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:03,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-03 17:03:03,284 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1246070921, now seen corresponding path program 14 times [2022-03-03 17:03:03,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:03,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911535717] [2022-03-03 17:03:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:03,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-03 17:03:03,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:03,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911535717] [2022-03-03 17:03:03,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911535717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:03,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:03,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:03,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543966852] [2022-03-03 17:03:03,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:03,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:03,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:03,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:03,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:03,871 INFO L87 Difference]: Start difference. First operand 42388 states and 118428 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:06,246 INFO L93 Difference]: Finished difference Result 57846 states and 160715 transitions. [2022-03-03 17:03:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:03:06,247 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:06,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:06,366 INFO L225 Difference]: With dead ends: 57846 [2022-03-03 17:03:06,367 INFO L226 Difference]: Without dead ends: 57846 [2022-03-03 17:03:06,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=817, Invalid=2843, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:03:06,367 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1815 mSDsluCounter, 4866 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 5235 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:06,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1815 Valid, 5235 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:03:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57846 states. [2022-03-03 17:03:07,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57846 to 42484. [2022-03-03 17:03:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42484 states, 42483 states have (on average 2.7938704893722193) internal successors, (118692), 42483 states have internal predecessors, (118692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42484 states to 42484 states and 118692 transitions. [2022-03-03 17:03:07,418 INFO L78 Accepts]: Start accepts. Automaton has 42484 states and 118692 transitions. Word has length 243 [2022-03-03 17:03:07,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:07,418 INFO L470 AbstractCegarLoop]: Abstraction has 42484 states and 118692 transitions. [2022-03-03 17:03:07,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:07,418 INFO L276 IsEmpty]: Start isEmpty. Operand 42484 states and 118692 transitions. [2022-03-03 17:03:07,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:07,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:07,470 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:07,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-03 17:03:07,470 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:07,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:07,471 INFO L85 PathProgramCache]: Analyzing trace with hash 972375593, now seen corresponding path program 15 times [2022-03-03 17:03:07,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:07,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530596101] [2022-03-03 17:03:07,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:07,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:08,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:08,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530596101] [2022-03-03 17:03:08,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530596101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:08,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:08,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:03:08,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708636398] [2022-03-03 17:03:08,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:08,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:03:08,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:08,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:03:08,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:03:08,047 INFO L87 Difference]: Start difference. First operand 42484 states and 118692 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:10,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:10,268 INFO L93 Difference]: Finished difference Result 53029 states and 147162 transitions. [2022-03-03 17:03:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:03:10,268 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:10,386 INFO L225 Difference]: With dead ends: 53029 [2022-03-03 17:03:10,386 INFO L226 Difference]: Without dead ends: 53029 [2022-03-03 17:03:10,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=858, Invalid=3048, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:03:10,387 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 1985 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:10,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1985 Valid, 4948 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53029 states. [2022-03-03 17:03:11,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53029 to 42436. [2022-03-03 17:03:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42436 states, 42435 states have (on average 2.7939201131141744) internal successors, (118560), 42435 states have internal predecessors, (118560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42436 states to 42436 states and 118560 transitions. [2022-03-03 17:03:11,485 INFO L78 Accepts]: Start accepts. Automaton has 42436 states and 118560 transitions. Word has length 243 [2022-03-03 17:03:11,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:11,486 INFO L470 AbstractCegarLoop]: Abstraction has 42436 states and 118560 transitions. [2022-03-03 17:03:11,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:11,486 INFO L276 IsEmpty]: Start isEmpty. Operand 42436 states and 118560 transitions. [2022-03-03 17:03:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:11,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:11,540 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:11,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-03 17:03:11,540 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:11,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1772170929, now seen corresponding path program 16 times [2022-03-03 17:03:11,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:11,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123244492] [2022-03-03 17:03:11,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:11,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:12,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:12,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123244492] [2022-03-03 17:03:12,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123244492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:12,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:12,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:03:12,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411572405] [2022-03-03 17:03:12,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:12,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:03:12,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:03:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:03:12,037 INFO L87 Difference]: Start difference. First operand 42436 states and 118560 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:14,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:14,188 INFO L93 Difference]: Finished difference Result 56848 states and 157948 transitions. [2022-03-03 17:03:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:03:14,189 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:14,297 INFO L225 Difference]: With dead ends: 56848 [2022-03-03 17:03:14,297 INFO L226 Difference]: Without dead ends: 56848 [2022-03-03 17:03:14,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=815, Invalid=2967, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 17:03:14,298 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 1921 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 5744 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:14,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1921 Valid, 5744 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:03:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56848 states. [2022-03-03 17:03:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56848 to 42388. [2022-03-03 17:03:15,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42388 states, 42387 states have (on average 2.7939698492462313) internal successors, (118428), 42387 states have internal predecessors, (118428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42388 states to 42388 states and 118428 transitions. [2022-03-03 17:03:15,448 INFO L78 Accepts]: Start accepts. Automaton has 42388 states and 118428 transitions. Word has length 243 [2022-03-03 17:03:15,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:15,448 INFO L470 AbstractCegarLoop]: Abstraction has 42388 states and 118428 transitions. [2022-03-03 17:03:15,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:15,448 INFO L276 IsEmpty]: Start isEmpty. Operand 42388 states and 118428 transitions. [2022-03-03 17:03:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:15,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:15,493 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:15,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-03 17:03:15,493 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:15,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:15,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1621547873, now seen corresponding path program 17 times [2022-03-03 17:03:15,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:15,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738678137] [2022-03-03 17:03:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:15,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-03 17:03:15,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:15,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738678137] [2022-03-03 17:03:15,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738678137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:15,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:15,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:15,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626971401] [2022-03-03 17:03:15,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:15,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:15,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:15,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:15,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:15,947 INFO L87 Difference]: Start difference. First operand 42388 states and 118428 transitions. Second operand has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:18,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:18,494 INFO L93 Difference]: Finished difference Result 61242 states and 170122 transitions. [2022-03-03 17:03:18,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:03:18,495 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:18,615 INFO L225 Difference]: With dead ends: 61242 [2022-03-03 17:03:18,615 INFO L226 Difference]: Without dead ends: 61242 [2022-03-03 17:03:18,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1011, Invalid=3411, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:03:18,615 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 2078 mSDsluCounter, 5082 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:18,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2078 Valid, 5470 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:03:18,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61242 states. [2022-03-03 17:03:19,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61242 to 42988. [2022-03-03 17:03:19,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42988 states, 42987 states have (on average 2.7933561309233026) internal successors, (120078), 42987 states have internal predecessors, (120078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:19,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42988 states to 42988 states and 120078 transitions. [2022-03-03 17:03:19,555 INFO L78 Accepts]: Start accepts. Automaton has 42988 states and 120078 transitions. Word has length 243 [2022-03-03 17:03:19,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:19,555 INFO L470 AbstractCegarLoop]: Abstraction has 42988 states and 120078 transitions. [2022-03-03 17:03:19,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.956521739130435) internal successors, (183), 23 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 42988 states and 120078 transitions. [2022-03-03 17:03:19,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:19,602 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:19,602 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:19,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-03 17:03:19,603 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:19,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2117022141, now seen corresponding path program 18 times [2022-03-03 17:03:19,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:19,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37808610] [2022-03-03 17:03:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:19,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:20,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:20,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37808610] [2022-03-03 17:03:20,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37808610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:20,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:20,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:20,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777188376] [2022-03-03 17:03:20,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:20,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:20,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:20,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:20,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:20,069 INFO L87 Difference]: Start difference. First operand 42988 states and 120078 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:22,025 INFO L93 Difference]: Finished difference Result 56425 states and 156569 transitions. [2022-03-03 17:03:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:03:22,025 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:22,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:22,148 INFO L225 Difference]: With dead ends: 56425 [2022-03-03 17:03:22,148 INFO L226 Difference]: Without dead ends: 56425 [2022-03-03 17:03:22,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=994, Invalid=3296, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:03:22,149 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1996 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:22,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1996 Valid, 4558 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56425 states. [2022-03-03 17:03:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56425 to 42940. [2022-03-03 17:03:23,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42940 states, 42939 states have (on average 2.793404597219311) internal successors, (119946), 42939 states have internal predecessors, (119946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42940 states to 42940 states and 119946 transitions. [2022-03-03 17:03:23,230 INFO L78 Accepts]: Start accepts. Automaton has 42940 states and 119946 transitions. Word has length 243 [2022-03-03 17:03:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:23,230 INFO L470 AbstractCegarLoop]: Abstraction has 42940 states and 119946 transitions. [2022-03-03 17:03:23,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,230 INFO L276 IsEmpty]: Start isEmpty. Operand 42940 states and 119946 transitions. [2022-03-03 17:03:23,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:23,277 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:23,277 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:23,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-03 17:03:23,277 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:23,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:23,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2124725105, now seen corresponding path program 19 times [2022-03-03 17:03:23,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:23,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671875907] [2022-03-03 17:03:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:23,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:23,720 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:23,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:23,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671875907] [2022-03-03 17:03:23,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671875907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:23,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:23,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:23,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613483758] [2022-03-03 17:03:23,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:23,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:23,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:23,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:23,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:23,722 INFO L87 Difference]: Start difference. First operand 42940 states and 119946 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:26,085 INFO L93 Difference]: Finished difference Result 59947 states and 166537 transitions. [2022-03-03 17:03:26,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:03:26,086 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:26,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:26,211 INFO L225 Difference]: With dead ends: 59947 [2022-03-03 17:03:26,211 INFO L226 Difference]: Without dead ends: 59947 [2022-03-03 17:03:26,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1030, Invalid=3526, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 17:03:26,212 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 1822 mSDsluCounter, 5274 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 5630 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:26,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1822 Valid, 5630 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:03:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59947 states. [2022-03-03 17:03:27,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59947 to 42892. [2022-03-03 17:03:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42892 states, 42891 states have (on average 2.7934531719941247) internal successors, (119814), 42891 states have internal predecessors, (119814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42892 states to 42892 states and 119814 transitions. [2022-03-03 17:03:27,257 INFO L78 Accepts]: Start accepts. Automaton has 42892 states and 119814 transitions. Word has length 243 [2022-03-03 17:03:27,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:27,258 INFO L470 AbstractCegarLoop]: Abstraction has 42892 states and 119814 transitions. [2022-03-03 17:03:27,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 42892 states and 119814 transitions. [2022-03-03 17:03:27,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:27,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:27,309 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:27,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-03 17:03:27,309 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:27,309 INFO L85 PathProgramCache]: Analyzing trace with hash 750232837, now seen corresponding path program 20 times [2022-03-03 17:03:27,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:27,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385796218] [2022-03-03 17:03:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:27,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:27,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:27,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385796218] [2022-03-03 17:03:27,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385796218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:27,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:27,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-03 17:03:27,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178061316] [2022-03-03 17:03:27,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:27,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-03 17:03:27,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:27,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-03 17:03:27,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:03:27,838 INFO L87 Difference]: Start difference. First operand 42892 states and 119814 transitions. Second operand has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:30,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:30,876 INFO L93 Difference]: Finished difference Result 73483 states and 204084 transitions. [2022-03-03 17:03:30,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 17:03:30,876 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:30,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:31,037 INFO L225 Difference]: With dead ends: 73483 [2022-03-03 17:03:31,037 INFO L226 Difference]: Without dead ends: 73483 [2022-03-03 17:03:31,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1061, Invalid=3769, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 17:03:31,037 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 2097 mSDsluCounter, 6252 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 6645 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:31,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2097 Valid, 6645 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 17:03:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73483 states. [2022-03-03 17:03:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73483 to 42460. [2022-03-03 17:03:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42460 states, 42459 states have (on average 2.7938952872182576) internal successors, (118626), 42459 states have internal predecessors, (118626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42460 states to 42460 states and 118626 transitions. [2022-03-03 17:03:32,032 INFO L78 Accepts]: Start accepts. Automaton has 42460 states and 118626 transitions. Word has length 243 [2022-03-03 17:03:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:32,033 INFO L470 AbstractCegarLoop]: Abstraction has 42460 states and 118626 transitions. [2022-03-03 17:03:32,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 42460 states and 118626 transitions. [2022-03-03 17:03:32,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:32,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:32,092 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:32,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-03 17:03:32,092 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:32,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:32,092 INFO L85 PathProgramCache]: Analyzing trace with hash -209674911, now seen corresponding path program 21 times [2022-03-03 17:03:32,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:32,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223483887] [2022-03-03 17:03:32,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:32,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-03 17:03:32,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:32,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223483887] [2022-03-03 17:03:32,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223483887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:32,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:32,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-03-03 17:03:32,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45126532] [2022-03-03 17:03:32,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:32,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-03 17:03:32,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:32,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-03 17:03:32,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:03:32,659 INFO L87 Difference]: Start difference. First operand 42460 states and 118626 transitions. Second operand has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:34,139 INFO L93 Difference]: Finished difference Result 60570 states and 168326 transitions. [2022-03-03 17:03:34,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 17:03:34,139 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:34,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:34,394 INFO L225 Difference]: With dead ends: 60570 [2022-03-03 17:03:34,394 INFO L226 Difference]: Without dead ends: 60570 [2022-03-03 17:03:34,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=772, Invalid=2534, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:03:34,395 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1957 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 3603 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:34,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1957 Valid, 3603 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:03:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60570 states. [2022-03-03 17:03:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60570 to 42516. [2022-03-03 17:03:35,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42516 states, 42515 states have (on average 2.7941197224509) internal successors, (118792), 42515 states have internal predecessors, (118792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42516 states to 42516 states and 118792 transitions. [2022-03-03 17:03:35,214 INFO L78 Accepts]: Start accepts. Automaton has 42516 states and 118792 transitions. Word has length 243 [2022-03-03 17:03:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:35,214 INFO L470 AbstractCegarLoop]: Abstraction has 42516 states and 118792 transitions. [2022-03-03 17:03:35,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.181818181818182) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 42516 states and 118792 transitions. [2022-03-03 17:03:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:35,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:35,262 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:35,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-03 17:03:35,262 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:35,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:35,263 INFO L85 PathProgramCache]: Analyzing trace with hash -483370239, now seen corresponding path program 22 times [2022-03-03 17:03:35,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:35,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628726537] [2022-03-03 17:03:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:35,649 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:35,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:35,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628726537] [2022-03-03 17:03:35,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628726537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:35,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:35,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:35,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110782920] [2022-03-03 17:03:35,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:35,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:35,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:35,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:35,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:35,651 INFO L87 Difference]: Start difference. First operand 42516 states and 118792 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:37,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:37,538 INFO L93 Difference]: Finished difference Result 56320 states and 156362 transitions. [2022-03-03 17:03:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 17:03:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:37,653 INFO L225 Difference]: With dead ends: 56320 [2022-03-03 17:03:37,654 INFO L226 Difference]: Without dead ends: 56320 [2022-03-03 17:03:37,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=811, Invalid=2729, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:03:37,654 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1660 mSDsluCounter, 4148 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 4473 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:37,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1660 Valid, 4473 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56320 states. [2022-03-03 17:03:38,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56320 to 42468. [2022-03-03 17:03:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42468 states, 42467 states have (on average 2.794169590505569) internal successors, (118660), 42467 states have internal predecessors, (118660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42468 states to 42468 states and 118660 transitions. [2022-03-03 17:03:38,711 INFO L78 Accepts]: Start accepts. Automaton has 42468 states and 118660 transitions. Word has length 243 [2022-03-03 17:03:38,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:38,711 INFO L470 AbstractCegarLoop]: Abstraction has 42468 states and 118660 transitions. [2022-03-03 17:03:38,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 42468 states and 118660 transitions. [2022-03-03 17:03:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:38,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:38,760 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:38,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-03 17:03:38,761 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:38,761 INFO L85 PathProgramCache]: Analyzing trace with hash -627347039, now seen corresponding path program 23 times [2022-03-03 17:03:38,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:38,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566825393] [2022-03-03 17:03:38,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:38,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-03 17:03:39,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:39,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566825393] [2022-03-03 17:03:39,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566825393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:39,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:39,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:39,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816070678] [2022-03-03 17:03:39,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:39,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:39,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:39,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:39,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:39,241 INFO L87 Difference]: Start difference. First operand 42468 states and 118660 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:41,949 INFO L93 Difference]: Finished difference Result 56512 states and 156856 transitions. [2022-03-03 17:03:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:03:41,949 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:42,217 INFO L225 Difference]: With dead ends: 56512 [2022-03-03 17:03:42,217 INFO L226 Difference]: Without dead ends: 56460 [2022-03-03 17:03:42,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 772 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1028, Invalid=3262, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:03:42,217 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 2005 mSDsluCounter, 4977 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 5318 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:42,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2005 Valid, 5318 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:03:42,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56460 states. [2022-03-03 17:03:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56460 to 42464. [2022-03-03 17:03:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42464 states, 42463 states have (on average 2.793985351953465) internal successors, (118641), 42463 states have internal predecessors, (118641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:43,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42464 states to 42464 states and 118641 transitions. [2022-03-03 17:03:43,090 INFO L78 Accepts]: Start accepts. Automaton has 42464 states and 118641 transitions. Word has length 243 [2022-03-03 17:03:43,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:43,090 INFO L470 AbstractCegarLoop]: Abstraction has 42464 states and 118641 transitions. [2022-03-03 17:03:43,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:43,090 INFO L276 IsEmpty]: Start isEmpty. Operand 42464 states and 118641 transitions. [2022-03-03 17:03:43,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:43,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:43,142 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:43,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-03 17:03:43,143 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:43,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash -819796161, now seen corresponding path program 24 times [2022-03-03 17:03:43,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:43,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291422438] [2022-03-03 17:03:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:43,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-03 17:03:43,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:43,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291422438] [2022-03-03 17:03:43,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291422438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:43,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:43,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:43,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62736427] [2022-03-03 17:03:43,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:43,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:43,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:43,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:43,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:43,657 INFO L87 Difference]: Start difference. First operand 42464 states and 118641 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:46,134 INFO L93 Difference]: Finished difference Result 60898 states and 169244 transitions. [2022-03-03 17:03:46,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:03:46,135 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:46,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:46,402 INFO L225 Difference]: With dead ends: 60898 [2022-03-03 17:03:46,402 INFO L226 Difference]: Without dead ends: 60898 [2022-03-03 17:03:46,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=955, Invalid=3205, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:03:46,402 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1826 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 5241 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:46,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1826 Valid, 5241 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:46,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60898 states. [2022-03-03 17:03:47,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60898 to 42560. [2022-03-03 17:03:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42560 states, 42559 states have (on average 2.793886134542635) internal successors, (118905), 42559 states have internal predecessors, (118905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42560 states to 42560 states and 118905 transitions. [2022-03-03 17:03:47,289 INFO L78 Accepts]: Start accepts. Automaton has 42560 states and 118905 transitions. Word has length 243 [2022-03-03 17:03:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:47,289 INFO L470 AbstractCegarLoop]: Abstraction has 42560 states and 118905 transitions. [2022-03-03 17:03:47,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 23 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 42560 states and 118905 transitions. [2022-03-03 17:03:47,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:47,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:47,345 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:47,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-03 17:03:47,346 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:47,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1093491489, now seen corresponding path program 25 times [2022-03-03 17:03:47,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:47,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559304909] [2022-03-03 17:03:47,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:47,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:47,747 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:47,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:47,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559304909] [2022-03-03 17:03:47,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559304909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:47,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:47,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-03-03 17:03:47,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588921239] [2022-03-03 17:03:47,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:47,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-03 17:03:47,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:47,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-03 17:03:47,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:03:47,749 INFO L87 Difference]: Start difference. First operand 42560 states and 118905 transitions. Second operand has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:49,331 INFO L93 Difference]: Finished difference Result 56081 states and 155691 transitions. [2022-03-03 17:03:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:03:49,332 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2022-03-03 17:03:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:49,440 INFO L225 Difference]: With dead ends: 56081 [2022-03-03 17:03:49,440 INFO L226 Difference]: Without dead ends: 56081 [2022-03-03 17:03:49,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=932, Invalid=2974, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:03:49,441 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1782 mSDsluCounter, 3558 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 3908 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:49,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1782 Valid, 3908 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56081 states. [2022-03-03 17:03:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56081 to 42512. [2022-03-03 17:03:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42512 states, 42511 states have (on average 2.7939356872338923) internal successors, (118773), 42511 states have internal predecessors, (118773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42512 states to 42512 states and 118773 transitions. [2022-03-03 17:03:50,449 INFO L78 Accepts]: Start accepts. Automaton has 42512 states and 118773 transitions. Word has length 243 [2022-03-03 17:03:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:50,449 INFO L470 AbstractCegarLoop]: Abstraction has 42512 states and 118773 transitions. [2022-03-03 17:03:50,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 42512 states and 118773 transitions. [2022-03-03 17:03:50,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-03 17:03:50,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:50,497 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:50,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-03 17:03:50,497 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:50,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash -293696153, now seen corresponding path program 26 times [2022-03-03 17:03:50,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:50,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419918592] [2022-03-03 17:03:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:50,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-03 17:03:50,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:50,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419918592] [2022-03-03 17:03:50,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419918592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:50,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:50,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-03 17:03:50,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412073484] [2022-03-03 17:03:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:50,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-03 17:03:50,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:50,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-03 17:03:50,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:03:50,971 INFO L87 Difference]: Start difference. First operand 42512 states and 118773 transitions. Second operand has 23 states, 23 states have (on average 8.130434782608695) internal successors, (187), 23 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)