/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-c7b2d19 [2022-03-15 13:41:33,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:41:33,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:41:33,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:41:33,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:41:33,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:41:33,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:41:33,865 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 [2022-03-15 13:41:33,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:41:33,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:41:33,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:41:33,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:41:33,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:41:33,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:41:33,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:41:33,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:41:33,895 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:41:33,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:41:33,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:41:33,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:41:33,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:41:33,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:41:33,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:41:33,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:41:33,898 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:41:33,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:41:33,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:41:34,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:41:34,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:41:34,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:41:34,083 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:41:34,084 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:41:34,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-03-15 13:41:34,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53cf4633/3f0347a3612849cb8173c7ba90e5f10c/FLAG97d1ac293 [2022-03-15 13:41:34,469 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:41:34,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-03-15 13:41:34,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53cf4633/3f0347a3612849cb8173c7ba90e5f10c/FLAG97d1ac293 [2022-03-15 13:41:34,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53cf4633/3f0347a3612849cb8173c7ba90e5f10c [2022-03-15 13:41:34,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:41:34,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:41:34,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:41:34,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:41:34,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:41:34,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:41:34" (1/1) ... [2022-03-15 13:41:34,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40137a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:34, skipping insertion in model container [2022-03-15 13:41:34,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:41:34" (1/1) ... [2022-03-15 13:41:34,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:41:34,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:41:35,097 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] [2022-03-15 13:41:35,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:41:35,107 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:41:35,122 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] [2022-03-15 13:41:35,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:41:35,133 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:41:35,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35 WrapperNode [2022-03-15 13:41:35,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:41:35,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:41:35,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:41:35,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:41:35,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,166 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2022-03-15 13:41:35,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:41:35,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:41:35,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:41:35,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:41:35,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:41:35,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:41:35,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:41:35,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:41:35,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (1/1) ... [2022-03-15 13:41:35,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:41:35,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:41:35,211 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) [2022-03-15 13:41:35,216 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 [2022-03-15 13:41:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:41:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 13:41:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 13:41:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 13:41:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 13:41:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:41:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:41:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:41:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 13:41:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:41:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:41:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:41:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:41:35,248 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:41:35,305 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:41:35,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:41:35,548 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:41:35,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:41:35,556 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 13:41:35,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:41:35 BoogieIcfgContainer [2022-03-15 13:41:35,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:41:35,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:41:35,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:41:35,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:41:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:41:34" (1/3) ... [2022-03-15 13:41:35,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55296a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:41:35, skipping insertion in model container [2022-03-15 13:41:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:41:35" (2/3) ... [2022-03-15 13:41:35,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55296a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:41:35, skipping insertion in model container [2022-03-15 13:41:35,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:41:35" (3/3) ... [2022-03-15 13:41:35,563 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-03-15 13:41:35,567 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:41:35,567 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:41:35,567 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:41:35,567 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:41:35,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,601 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,602 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,602 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,602 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,602 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,602 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,603 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,604 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,606 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,608 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,611 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,612 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,615 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,615 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,615 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,615 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,615 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,615 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,615 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,621 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,622 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,623 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,624 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:41:35,634 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 13:41:35,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:41:35,668 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 [2022-03-15 13:41:35,669 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 13:41:35,677 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 208 places, 222 transitions, 460 flow [2022-03-15 13:41:35,841 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) [2022-03-15 13:41:35,856 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) [2022-03-15 13:41:35,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-15 13:41:35,895 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:35,896 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] [2022-03-15 13:41:35,896 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:35,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:35,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1784504573, now seen corresponding path program 1 times [2022-03-15 13:41:35,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:35,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441110382] [2022-03-15 13:41:35,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:35,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:41:36,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:36,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441110382] [2022-03-15 13:41:36,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441110382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:36,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:36,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 13:41:36,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558479526] [2022-03-15 13:41:36,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:36,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 13:41:36,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:36,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 13:41:36,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 13:41:36,160 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) [2022-03-15 13:41:36,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:36,238 INFO L93 Difference]: Finished difference Result 5325 states and 15084 transitions. [2022-03-15 13:41:36,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 13:41:36,241 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 [2022-03-15 13:41:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:36,280 INFO L225 Difference]: With dead ends: 5325 [2022-03-15 13:41:36,280 INFO L226 Difference]: Without dead ends: 5035 [2022-03-15 13:41:36,283 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 [2022-03-15 13:41:36,286 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 [2022-03-15 13:41:36,287 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] [2022-03-15 13:41:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2022-03-15 13:41:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5035. [2022-03-15 13:41:36,522 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) [2022-03-15 13:41:36,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 14278 transitions. [2022-03-15 13:41:36,541 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 14278 transitions. Word has length 127 [2022-03-15 13:41:36,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:36,542 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 14278 transitions. [2022-03-15 13:41:36,542 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) [2022-03-15 13:41:36,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 14278 transitions. [2022-03-15 13:41:36,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-15 13:41:36,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:36,554 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] [2022-03-15 13:41:36,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:41:36,554 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:36,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:36,557 INFO L85 PathProgramCache]: Analyzing trace with hash 987407205, now seen corresponding path program 1 times [2022-03-15 13:41:36,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:36,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199478235] [2022-03-15 13:41:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:41:36,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:36,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199478235] [2022-03-15 13:41:36,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199478235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:36,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:36,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:41:36,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914967203] [2022-03-15 13:41:36,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:36,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:41:36,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:36,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:41:36,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:41:36,682 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) [2022-03-15 13:41:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:36,788 INFO L93 Difference]: Finished difference Result 5047 states and 14290 transitions. [2022-03-15 13:41:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:41:36,788 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 [2022-03-15 13:41:36,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:36,840 INFO L225 Difference]: With dead ends: 5047 [2022-03-15 13:41:36,840 INFO L226 Difference]: Without dead ends: 5047 [2022-03-15 13:41:36,840 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 [2022-03-15 13:41:36,841 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 [2022-03-15 13:41:36,842 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] [2022-03-15 13:41:36,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2022-03-15 13:41:36,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 5037. [2022-03-15 13:41:36,951 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) [2022-03-15 13:41:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 14280 transitions. [2022-03-15 13:41:36,968 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 14280 transitions. Word has length 127 [2022-03-15 13:41:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:36,970 INFO L470 AbstractCegarLoop]: Abstraction has 5037 states and 14280 transitions. [2022-03-15 13:41:36,970 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) [2022-03-15 13:41:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 14280 transitions. [2022-03-15 13:41:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-15 13:41:36,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:36,982 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] [2022-03-15 13:41:36,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:41:36,982 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:36,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:36,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1848078548, now seen corresponding path program 1 times [2022-03-15 13:41:36,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:36,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048815384] [2022-03-15 13:41:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:36,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 13:41:37,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:37,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048815384] [2022-03-15 13:41:37,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048815384] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 13:41:37,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388216891] [2022-03-15 13:41:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:37,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:41:37,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:41:37,152 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) [2022-03-15 13:41:37,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 13:41:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:37,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-15 13:41:37,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 13:41:37,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 13:41:37,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 13:41:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 13:41:37,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388216891] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 13:41:37,777 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 13:41:37,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-03-15 13:41:37,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447044017] [2022-03-15 13:41:37,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 13:41:37,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 13:41:37,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:37,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 13:41:37,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:41:37,779 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) [2022-03-15 13:41:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:37,939 INFO L93 Difference]: Finished difference Result 5065 states and 14308 transitions. [2022-03-15 13:41:37,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 13:41:37,939 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 [2022-03-15 13:41:37,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:37,959 INFO L225 Difference]: With dead ends: 5065 [2022-03-15 13:41:37,959 INFO L226 Difference]: Without dead ends: 5065 [2022-03-15 13:41:37,960 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 [2022-03-15 13:41:37,963 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 [2022-03-15 13:41:37,964 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] [2022-03-15 13:41:37,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2022-03-15 13:41:38,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 5065. [2022-03-15 13:41:38,098 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) [2022-03-15 13:41:38,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 14308 transitions. [2022-03-15 13:41:38,112 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 14308 transitions. Word has length 141 [2022-03-15 13:41:38,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:38,113 INFO L470 AbstractCegarLoop]: Abstraction has 5065 states and 14308 transitions. [2022-03-15 13:41:38,113 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) [2022-03-15 13:41:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 14308 transitions. [2022-03-15 13:41:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-15 13:41:38,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:38,124 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] [2022-03-15 13:41:38,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 13:41:38,341 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 [2022-03-15 13:41:38,342 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:38,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:38,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1234184308, now seen corresponding path program 2 times [2022-03-15 13:41:38,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:38,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17827764] [2022-03-15 13:41:38,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:38,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-15 13:41:38,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:38,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17827764] [2022-03-15 13:41:38,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17827764] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 13:41:38,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752019257] [2022-03-15 13:41:38,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 13:41:38,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:41:38,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:41:38,484 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) [2022-03-15 13:41:38,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 13:41:38,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-15 13:41:38,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 13:41:38,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 13:41:38,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 13:41:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-15 13:41:38,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 13:41:38,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752019257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:38,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 13:41:38,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-03-15 13:41:38,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259931555] [2022-03-15 13:41:38,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:38,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:38,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:38,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:38,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:41:38,864 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) [2022-03-15 13:41:39,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:39,049 INFO L93 Difference]: Finished difference Result 8738 states and 24927 transitions. [2022-03-15 13:41:39,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 13:41:39,050 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 [2022-03-15 13:41:39,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:39,089 INFO L225 Difference]: With dead ends: 8738 [2022-03-15 13:41:39,089 INFO L226 Difference]: Without dead ends: 8738 [2022-03-15 13:41:39,090 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 [2022-03-15 13:41:39,092 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 [2022-03-15 13:41:39,093 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] [2022-03-15 13:41:39,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2022-03-15 13:41:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 5953. [2022-03-15 13:41:39,228 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) [2022-03-15 13:41:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5953 states to 5953 states and 16828 transitions. [2022-03-15 13:41:39,243 INFO L78 Accepts]: Start accepts. Automaton has 5953 states and 16828 transitions. Word has length 169 [2022-03-15 13:41:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:39,244 INFO L470 AbstractCegarLoop]: Abstraction has 5953 states and 16828 transitions. [2022-03-15 13:41:39,245 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) [2022-03-15 13:41:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5953 states and 16828 transitions. [2022-03-15 13:41:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-15 13:41:39,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:39,258 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] [2022-03-15 13:41:39,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 13:41:39,467 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 [2022-03-15 13:41:39,468 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:39,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:39,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1857872626, now seen corresponding path program 3 times [2022-03-15 13:41:39,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:39,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209255667] [2022-03-15 13:41:39,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-15 13:41:39,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:39,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209255667] [2022-03-15 13:41:39,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209255667] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 13:41:39,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264370368] [2022-03-15 13:41:39,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 13:41:39,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:41:39,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:41:39,568 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) [2022-03-15 13:41:39,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 13:41:39,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-03-15 13:41:39,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 13:41:39,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 13:41:39,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 13:41:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-15 13:41:39,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 13:41:39,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264370368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:39,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 13:41:39,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-03-15 13:41:39,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485230660] [2022-03-15 13:41:39,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:39,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:39,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:39,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:39,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:41:39,977 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) [2022-03-15 13:41:40,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:40,132 INFO L93 Difference]: Finished difference Result 9654 states and 27532 transitions. [2022-03-15 13:41:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:40,133 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 [2022-03-15 13:41:40,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:40,162 INFO L225 Difference]: With dead ends: 9654 [2022-03-15 13:41:40,166 INFO L226 Difference]: Without dead ends: 9654 [2022-03-15 13:41:40,166 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 [2022-03-15 13:41:40,167 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 323 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-03-15 13:41:40,167 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] [2022-03-15 13:41:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9654 states. [2022-03-15 13:41:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9654 to 5985. [2022-03-15 13:41:40,332 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) [2022-03-15 13:41:40,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 16920 transitions. [2022-03-15 13:41:40,353 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 16920 transitions. Word has length 169 [2022-03-15 13:41:40,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:40,354 INFO L470 AbstractCegarLoop]: Abstraction has 5985 states and 16920 transitions. [2022-03-15 13:41:40,354 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) [2022-03-15 13:41:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 16920 transitions. [2022-03-15 13:41:40,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-15 13:41:40,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:40,365 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] [2022-03-15 13:41:40,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-15 13:41:40,579 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 [2022-03-15 13:41:40,580 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:40,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:40,580 INFO L85 PathProgramCache]: Analyzing trace with hash -695768322, now seen corresponding path program 4 times [2022-03-15 13:41:40,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:40,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225521594] [2022-03-15 13:41:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:40,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-15 13:41:40,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:40,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225521594] [2022-03-15 13:41:40,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225521594] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 13:41:40,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033390172] [2022-03-15 13:41:40,667 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 13:41:40,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:41:40,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:41:40,668 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) [2022-03-15 13:41:40,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 13:41:40,749 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 13:41:40,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 13:41:40,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-15 13:41:40,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 13:41:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-15 13:41:41,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 13:41:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-15 13:41:41,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033390172] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 13:41:41,248 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 13:41:41,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-03-15 13:41:41,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898986305] [2022-03-15 13:41:41,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 13:41:41,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-15 13:41:41,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:41,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-15 13:41:41,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:41:41,250 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) [2022-03-15 13:41:41,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:41,516 INFO L93 Difference]: Finished difference Result 6013 states and 16948 transitions. [2022-03-15 13:41:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:41:41,517 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 [2022-03-15 13:41:41,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:41,534 INFO L225 Difference]: With dead ends: 6013 [2022-03-15 13:41:41,534 INFO L226 Difference]: Without dead ends: 6013 [2022-03-15 13:41:41,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 326 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:41:41,536 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 [2022-03-15 13:41:41,536 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] [2022-03-15 13:41:41,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-03-15 13:41:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 6013. [2022-03-15 13:41:41,674 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) [2022-03-15 13:41:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16948 transitions. [2022-03-15 13:41:41,687 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16948 transitions. Word has length 169 [2022-03-15 13:41:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:41,688 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16948 transitions. [2022-03-15 13:41:41,688 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) [2022-03-15 13:41:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16948 transitions. [2022-03-15 13:41:41,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:41,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:41,698 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] [2022-03-15 13:41:41,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 13:41:41,911 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 [2022-03-15 13:41:41,911 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2061970270, now seen corresponding path program 5 times [2022-03-15 13:41:41,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:41,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117320703] [2022-03-15 13:41:41,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:41,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:42,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:42,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117320703] [2022-03-15 13:41:42,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117320703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:42,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:42,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:42,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812734923] [2022-03-15 13:41:42,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:42,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:42,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:42,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:42,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:42,013 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) [2022-03-15 13:41:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:42,112 INFO L93 Difference]: Finished difference Result 8978 states and 25546 transitions. [2022-03-15 13:41:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:42,113 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 [2022-03-15 13:41:42,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:42,138 INFO L225 Difference]: With dead ends: 8978 [2022-03-15 13:41:42,138 INFO L226 Difference]: Without dead ends: 8966 [2022-03-15 13:41:42,139 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 [2022-03-15 13:41:42,139 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 [2022-03-15 13:41:42,140 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] [2022-03-15 13:41:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8966 states. [2022-03-15 13:41:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8966 to 6013. [2022-03-15 13:41:42,259 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) [2022-03-15 13:41:42,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16944 transitions. [2022-03-15 13:41:42,272 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16944 transitions. Word has length 197 [2022-03-15 13:41:42,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:42,272 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16944 transitions. [2022-03-15 13:41:42,273 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) [2022-03-15 13:41:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16944 transitions. [2022-03-15 13:41:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:42,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:42,282 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] [2022-03-15 13:41:42,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:41:42,283 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:42,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:42,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1457173220, now seen corresponding path program 6 times [2022-03-15 13:41:42,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:42,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421019192] [2022-03-15 13:41:42,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:42,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:42,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:42,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421019192] [2022-03-15 13:41:42,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421019192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:42,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:42,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:42,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804811474] [2022-03-15 13:41:42,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:42,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:42,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:42,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:42,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:42,365 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) [2022-03-15 13:41:42,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:42,463 INFO L93 Difference]: Finished difference Result 10058 states and 28610 transitions. [2022-03-15 13:41:42,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:42,463 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 [2022-03-15 13:41:42,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:42,486 INFO L225 Difference]: With dead ends: 10058 [2022-03-15 13:41:42,486 INFO L226 Difference]: Without dead ends: 10058 [2022-03-15 13:41:42,487 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 [2022-03-15 13:41:42,487 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 [2022-03-15 13:41:42,487 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] [2022-03-15 13:41:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2022-03-15 13:41:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 6109. [2022-03-15 13:41:42,646 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) [2022-03-15 13:41:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 17220 transitions. [2022-03-15 13:41:42,659 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 17220 transitions. Word has length 197 [2022-03-15 13:41:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:42,659 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 17220 transitions. [2022-03-15 13:41:42,659 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) [2022-03-15 13:41:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 17220 transitions. [2022-03-15 13:41:42,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:42,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:42,669 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] [2022-03-15 13:41:42,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 13:41:42,669 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:42,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1096467728, now seen corresponding path program 7 times [2022-03-15 13:41:42,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:42,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231618204] [2022-03-15 13:41:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:42,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:42,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:42,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231618204] [2022-03-15 13:41:42,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231618204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:42,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:42,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:42,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161812590] [2022-03-15 13:41:42,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:42,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:42,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:42,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:42,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:42,763 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) [2022-03-15 13:41:42,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:42,876 INFO L93 Difference]: Finished difference Result 10142 states and 28841 transitions. [2022-03-15 13:41:42,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:42,877 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 [2022-03-15 13:41:42,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:42,901 INFO L225 Difference]: With dead ends: 10142 [2022-03-15 13:41:42,901 INFO L226 Difference]: Without dead ends: 10130 [2022-03-15 13:41:42,902 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 [2022-03-15 13:41:42,902 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 284 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:41:42,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1062 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:41:42,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10130 states. [2022-03-15 13:41:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10130 to 6077. [2022-03-15 13:41:43,028 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) [2022-03-15 13:41:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17128 transitions. [2022-03-15 13:41:43,042 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17128 transitions. Word has length 197 [2022-03-15 13:41:43,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:43,042 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17128 transitions. [2022-03-15 13:41:43,042 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) [2022-03-15 13:41:43,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17128 transitions. [2022-03-15 13:41:43,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:43,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:43,052 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] [2022-03-15 13:41:43,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 13:41:43,053 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:43,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:43,053 INFO L85 PathProgramCache]: Analyzing trace with hash 501714194, now seen corresponding path program 8 times [2022-03-15 13:41:43,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:43,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372353798] [2022-03-15 13:41:43,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:43,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:43,146 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:43,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:43,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372353798] [2022-03-15 13:41:43,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372353798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:43,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:43,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:43,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459579729] [2022-03-15 13:41:43,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:43,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:43,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:43,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:43,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:43,148 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) [2022-03-15 13:41:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:43,244 INFO L93 Difference]: Finished difference Result 9138 states and 25986 transitions. [2022-03-15 13:41:43,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:43,245 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 [2022-03-15 13:41:43,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:43,264 INFO L225 Difference]: With dead ends: 9138 [2022-03-15 13:41:43,264 INFO L226 Difference]: Without dead ends: 9102 [2022-03-15 13:41:43,264 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 [2022-03-15 13:41:43,265 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 177 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 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 [2022-03-15 13:41:43,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 1140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:41:43,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-03-15 13:41:43,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 6077. [2022-03-15 13:41:43,433 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) [2022-03-15 13:41:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17120 transitions. [2022-03-15 13:41:43,445 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17120 transitions. Word has length 197 [2022-03-15 13:41:43,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:43,445 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17120 transitions. [2022-03-15 13:41:43,445 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) [2022-03-15 13:41:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17120 transitions. [2022-03-15 13:41:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:43,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:43,456 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] [2022-03-15 13:41:43,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 13:41:43,456 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:43,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:43,456 INFO L85 PathProgramCache]: Analyzing trace with hash -894162494, now seen corresponding path program 9 times [2022-03-15 13:41:43,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:43,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824964796] [2022-03-15 13:41:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:43,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:43,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824964796] [2022-03-15 13:41:43,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824964796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:43,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:43,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:43,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666346752] [2022-03-15 13:41:43,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:43,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:43,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:43,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:43,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:43,527 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) [2022-03-15 13:41:43,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:43,636 INFO L93 Difference]: Finished difference Result 9645 states and 27438 transitions. [2022-03-15 13:41:43,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:43,636 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 [2022-03-15 13:41:43,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:43,655 INFO L225 Difference]: With dead ends: 9645 [2022-03-15 13:41:43,655 INFO L226 Difference]: Without dead ends: 9645 [2022-03-15 13:41:43,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:41:43,656 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 [2022-03-15 13:41:43,656 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] [2022-03-15 13:41:43,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2022-03-15 13:41:43,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 5328. [2022-03-15 13:41:43,766 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) [2022-03-15 13:41:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 15020 transitions. [2022-03-15 13:41:43,777 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 15020 transitions. Word has length 197 [2022-03-15 13:41:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:43,777 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 15020 transitions. [2022-03-15 13:41:43,777 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) [2022-03-15 13:41:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 15020 transitions. [2022-03-15 13:41:43,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:43,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:43,786 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] [2022-03-15 13:41:43,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 13:41:43,786 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash 847163854, now seen corresponding path program 10 times [2022-03-15 13:41:43,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:43,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372583160] [2022-03-15 13:41:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:43,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:43,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:43,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372583160] [2022-03-15 13:41:43,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372583160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:43,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:43,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:43,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149426343] [2022-03-15 13:41:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:43,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:43,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:43,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:43,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:43,861 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) [2022-03-15 13:41:43,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:43,978 INFO L93 Difference]: Finished difference Result 9729 states and 27669 transitions. [2022-03-15 13:41:43,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:43,979 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 [2022-03-15 13:41:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:43,997 INFO L225 Difference]: With dead ends: 9729 [2022-03-15 13:41:43,997 INFO L226 Difference]: Without dead ends: 9717 [2022-03-15 13:41:43,998 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 [2022-03-15 13:41:43,998 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 312 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:41:43,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1026 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:41:44,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2022-03-15 13:41:44,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 5296. [2022-03-15 13:41:44,108 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) [2022-03-15 13:41:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 14928 transitions. [2022-03-15 13:41:44,119 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 14928 transitions. Word has length 197 [2022-03-15 13:41:44,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:44,120 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 14928 transitions. [2022-03-15 13:41:44,120 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) [2022-03-15 13:41:44,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 14928 transitions. [2022-03-15 13:41:44,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:44,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:44,128 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] [2022-03-15 13:41:44,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 13:41:44,128 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:44,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:44,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1849621520, now seen corresponding path program 11 times [2022-03-15 13:41:44,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:44,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744736213] [2022-03-15 13:41:44,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:44,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:44,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:44,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744736213] [2022-03-15 13:41:44,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744736213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:44,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:44,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:44,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711294555] [2022-03-15 13:41:44,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:44,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:44,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:44,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:44,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:44,224 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) [2022-03-15 13:41:44,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:44,333 INFO L93 Difference]: Finished difference Result 9645 states and 27422 transitions. [2022-03-15 13:41:44,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:44,333 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 [2022-03-15 13:41:44,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:44,351 INFO L225 Difference]: With dead ends: 9645 [2022-03-15 13:41:44,351 INFO L226 Difference]: Without dead ends: 9609 [2022-03-15 13:41:44,351 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 [2022-03-15 13:41:44,352 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 171 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 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 [2022-03-15 13:41:44,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 1208 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:41:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2022-03-15 13:41:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 5232. [2022-03-15 13:41:44,468 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) [2022-03-15 13:41:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 14744 transitions. [2022-03-15 13:41:44,479 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 14744 transitions. Word has length 197 [2022-03-15 13:41:44,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:44,479 INFO L470 AbstractCegarLoop]: Abstraction has 5232 states and 14744 transitions. [2022-03-15 13:41:44,479 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) [2022-03-15 13:41:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 14744 transitions. [2022-03-15 13:41:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:44,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:44,487 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] [2022-03-15 13:41:44,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 13:41:44,487 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:44,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash 486184146, now seen corresponding path program 12 times [2022-03-15 13:41:44,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:44,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531468440] [2022-03-15 13:41:44,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:44,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:44,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:44,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531468440] [2022-03-15 13:41:44,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531468440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:44,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:44,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:44,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979294103] [2022-03-15 13:41:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:44,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:44,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:44,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:44,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:44,565 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) [2022-03-15 13:41:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:44,658 INFO L93 Difference]: Finished difference Result 10585 states and 29897 transitions. [2022-03-15 13:41:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:44,658 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 [2022-03-15 13:41:44,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:44,679 INFO L225 Difference]: With dead ends: 10585 [2022-03-15 13:41:44,679 INFO L226 Difference]: Without dead ends: 10585 [2022-03-15 13:41:44,680 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 [2022-03-15 13:41:44,680 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 [2022-03-15 13:41:44,680 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] [2022-03-15 13:41:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-03-15 13:41:44,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 6246. [2022-03-15 13:41:44,827 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) [2022-03-15 13:41:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 17670 transitions. [2022-03-15 13:41:44,841 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 17670 transitions. Word has length 197 [2022-03-15 13:41:44,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:44,842 INFO L470 AbstractCegarLoop]: Abstraction has 6246 states and 17670 transitions. [2022-03-15 13:41:44,842 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) [2022-03-15 13:41:44,842 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 17670 transitions. [2022-03-15 13:41:44,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:44,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:44,850 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] [2022-03-15 13:41:44,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 13:41:44,850 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:44,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1700057834, now seen corresponding path program 13 times [2022-03-15 13:41:44,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:44,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949438589] [2022-03-15 13:41:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:44,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:44,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:44,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949438589] [2022-03-15 13:41:44,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949438589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:44,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:44,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:44,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104301136] [2022-03-15 13:41:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:44,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:44,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:44,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:44,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:44,927 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) [2022-03-15 13:41:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:45,023 INFO L93 Difference]: Finished difference Result 11311 states and 32155 transitions. [2022-03-15 13:41:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:45,023 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 [2022-03-15 13:41:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:45,048 INFO L225 Difference]: With dead ends: 11311 [2022-03-15 13:41:45,048 INFO L226 Difference]: Without dead ends: 11311 [2022-03-15 13:41:45,050 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 [2022-03-15 13:41:45,051 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 [2022-03-15 13:41:45,051 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] [2022-03-15 13:41:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-03-15 13:41:45,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 6190. [2022-03-15 13:41:45,183 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) [2022-03-15 13:41:45,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-03-15 13:41:45,197 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-03-15 13:41:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:45,197 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-03-15 13:41:45,197 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) [2022-03-15 13:41:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-03-15 13:41:45,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:45,205 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:45,205 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] [2022-03-15 13:41:45,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 13:41:45,206 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:45,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:45,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1114211488, now seen corresponding path program 14 times [2022-03-15 13:41:45,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:45,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725877527] [2022-03-15 13:41:45,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:45,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:45,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:45,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725877527] [2022-03-15 13:41:45,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725877527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:45,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:45,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:45,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538948056] [2022-03-15 13:41:45,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:45,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:45,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:45,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:45,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:45,277 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) [2022-03-15 13:41:45,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:45,356 INFO L93 Difference]: Finished difference Result 9994 states and 28468 transitions. [2022-03-15 13:41:45,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:45,356 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 [2022-03-15 13:41:45,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:45,375 INFO L225 Difference]: With dead ends: 9994 [2022-03-15 13:41:45,376 INFO L226 Difference]: Without dead ends: 9994 [2022-03-15 13:41:45,376 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 [2022-03-15 13:41:45,376 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 [2022-03-15 13:41:45,376 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] [2022-03-15 13:41:45,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9994 states. [2022-03-15 13:41:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9994 to 6190. [2022-03-15 13:41:45,536 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) [2022-03-15 13:41:45,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-03-15 13:41:45,547 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-03-15 13:41:45,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:45,547 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-03-15 13:41:45,548 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) [2022-03-15 13:41:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-03-15 13:41:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-15 13:41:45,555 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:45,555 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] [2022-03-15 13:41:45,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 13:41:45,556 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:45,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1846854242, now seen corresponding path program 15 times [2022-03-15 13:41:45,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:45,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079954050] [2022-03-15 13:41:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:45,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:45,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:45,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079954050] [2022-03-15 13:41:45,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079954050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:45,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:45,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:45,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071199576] [2022-03-15 13:41:45,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:45,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:45,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:45,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:45,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:45,619 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) [2022-03-15 13:41:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:45,714 INFO L93 Difference]: Finished difference Result 10757 states and 30680 transitions. [2022-03-15 13:41:45,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:45,714 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 [2022-03-15 13:41:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:45,734 INFO L225 Difference]: With dead ends: 10757 [2022-03-15 13:41:45,734 INFO L226 Difference]: Without dead ends: 10757 [2022-03-15 13:41:45,735 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 [2022-03-15 13:41:45,735 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 [2022-03-15 13:41:45,735 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] [2022-03-15 13:41:45,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-03-15 13:41:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 5378. [2022-03-15 13:41:45,840 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) [2022-03-15 13:41:45,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15187 transitions. [2022-03-15 13:41:45,850 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15187 transitions. Word has length 197 [2022-03-15 13:41:45,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:45,851 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15187 transitions. [2022-03-15 13:41:45,851 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) [2022-03-15 13:41:45,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15187 transitions. [2022-03-15 13:41:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-15 13:41:45,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:45,858 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] [2022-03-15 13:41:45,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 13:41:45,858 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:45,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1998923460, now seen corresponding path program 1 times [2022-03-15 13:41:45,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:45,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060347469] [2022-03-15 13:41:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:45,910 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:45,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:45,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060347469] [2022-03-15 13:41:45,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060347469] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:45,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:45,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:45,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728883820] [2022-03-15 13:41:45,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:45,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:45,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:45,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:45,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:45,911 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) [2022-03-15 13:41:45,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:45,988 INFO L93 Difference]: Finished difference Result 9593 states and 26922 transitions. [2022-03-15 13:41:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:41:45,988 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 [2022-03-15 13:41:45,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:46,005 INFO L225 Difference]: With dead ends: 9593 [2022-03-15 13:41:46,006 INFO L226 Difference]: Without dead ends: 9470 [2022-03-15 13:41:46,006 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 [2022-03-15 13:41:46,006 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 [2022-03-15 13:41:46,006 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] [2022-03-15 13:41:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2022-03-15 13:41:46,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 5378. [2022-03-15 13:41:46,106 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) [2022-03-15 13:41:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15165 transitions. [2022-03-15 13:41:46,117 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15165 transitions. Word has length 210 [2022-03-15 13:41:46,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:46,118 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15165 transitions. [2022-03-15 13:41:46,118 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) [2022-03-15 13:41:46,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15165 transitions. [2022-03-15 13:41:46,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-15 13:41:46,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:46,126 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] [2022-03-15 13:41:46,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 13:41:46,126 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:46,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:46,126 INFO L85 PathProgramCache]: Analyzing trace with hash 856042914, now seen corresponding path program 2 times [2022-03-15 13:41:46,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:46,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220352651] [2022-03-15 13:41:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:46,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:46,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:46,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220352651] [2022-03-15 13:41:46,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220352651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:46,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:46,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:46,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169225572] [2022-03-15 13:41:46,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:46,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:46,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:46,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:46,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:46,183 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) [2022-03-15 13:41:46,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:46,288 INFO L93 Difference]: Finished difference Result 11347 states and 31759 transitions. [2022-03-15 13:41:46,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:46,288 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 [2022-03-15 13:41:46,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:46,310 INFO L225 Difference]: With dead ends: 11347 [2022-03-15 13:41:46,310 INFO L226 Difference]: Without dead ends: 11302 [2022-03-15 13:41:46,311 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 [2022-03-15 13:41:46,311 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 [2022-03-15 13:41:46,311 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] [2022-03-15 13:41:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-03-15 13:41:46,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 5442. [2022-03-15 13:41:46,432 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) [2022-03-15 13:41:46,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 15341 transitions. [2022-03-15 13:41:46,443 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 15341 transitions. Word has length 210 [2022-03-15 13:41:46,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:46,443 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 15341 transitions. [2022-03-15 13:41:46,443 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) [2022-03-15 13:41:46,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 15341 transitions. [2022-03-15 13:41:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-15 13:41:46,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:46,451 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] [2022-03-15 13:41:46,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 13:41:46,451 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:46,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1193971804, now seen corresponding path program 3 times [2022-03-15 13:41:46,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:46,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266150548] [2022-03-15 13:41:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:46,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:46,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266150548] [2022-03-15 13:41:46,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266150548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:46,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:46,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:46,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303465979] [2022-03-15 13:41:46,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:46,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:46,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:46,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:46,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:46,526 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) [2022-03-15 13:41:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:46,648 INFO L93 Difference]: Finished difference Result 11071 states and 31168 transitions. [2022-03-15 13:41:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:46,649 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 [2022-03-15 13:41:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:46,669 INFO L225 Difference]: With dead ends: 11071 [2022-03-15 13:41:46,669 INFO L226 Difference]: Without dead ends: 11056 [2022-03-15 13:41:46,670 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 [2022-03-15 13:41:46,670 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:41:46,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1009 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:41:46,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-03-15 13:41:46,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5474. [2022-03-15 13:41:46,795 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) [2022-03-15 13:41:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15429 transitions. [2022-03-15 13:41:46,806 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15429 transitions. Word has length 210 [2022-03-15 13:41:46,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:46,806 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15429 transitions. [2022-03-15 13:41:46,806 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) [2022-03-15 13:41:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15429 transitions. [2022-03-15 13:41:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-15 13:41:46,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:46,814 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] [2022-03-15 13:41:46,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 13:41:46,815 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:46,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:46,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1157671516, now seen corresponding path program 1 times [2022-03-15 13:41:46,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:46,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312211888] [2022-03-15 13:41:46,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:46,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:46,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:46,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312211888] [2022-03-15 13:41:46,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312211888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:46,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:46,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:46,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135340910] [2022-03-15 13:41:46,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:46,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:46,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:46,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:46,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:46,868 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) [2022-03-15 13:41:46,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:46,935 INFO L93 Difference]: Finished difference Result 8999 states and 25587 transitions. [2022-03-15 13:41:46,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:46,936 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 [2022-03-15 13:41:46,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:46,952 INFO L225 Difference]: With dead ends: 8999 [2022-03-15 13:41:46,952 INFO L226 Difference]: Without dead ends: 8915 [2022-03-15 13:41:46,953 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 [2022-03-15 13:41:46,953 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 250 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 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 [2022-03-15 13:41:46,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 850 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:41:46,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2022-03-15 13:41:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 5474. [2022-03-15 13:41:47,051 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) [2022-03-15 13:41:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15413 transitions. [2022-03-15 13:41:47,061 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15413 transitions. Word has length 210 [2022-03-15 13:41:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:47,062 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15413 transitions. [2022-03-15 13:41:47,062 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) [2022-03-15 13:41:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15413 transitions. [2022-03-15 13:41:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-15 13:41:47,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:47,069 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] [2022-03-15 13:41:47,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 13:41:47,070 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1505777182, now seen corresponding path program 4 times [2022-03-15 13:41:47,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:47,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772658418] [2022-03-15 13:41:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:47,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:47,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772658418] [2022-03-15 13:41:47,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772658418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:47,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:47,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:47,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628654175] [2022-03-15 13:41:47,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:47,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:47,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:47,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:47,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:47,128 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) [2022-03-15 13:41:47,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:47,218 INFO L93 Difference]: Finished difference Result 10365 states and 29272 transitions. [2022-03-15 13:41:47,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:47,218 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 [2022-03-15 13:41:47,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:47,235 INFO L225 Difference]: With dead ends: 10365 [2022-03-15 13:41:47,236 INFO L226 Difference]: Without dead ends: 10320 [2022-03-15 13:41:47,236 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 [2022-03-15 13:41:47,236 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 230 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:41:47,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1224 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:41:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10320 states. [2022-03-15 13:41:47,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10320 to 5474. [2022-03-15 13:41:47,342 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) [2022-03-15 13:41:47,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15405 transitions. [2022-03-15 13:41:47,353 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15405 transitions. Word has length 210 [2022-03-15 13:41:47,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:47,353 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15405 transitions. [2022-03-15 13:41:47,353 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) [2022-03-15 13:41:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15405 transitions. [2022-03-15 13:41:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-15 13:41:47,360 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:47,361 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] [2022-03-15 13:41:47,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 13:41:47,361 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:47,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1167848292, now seen corresponding path program 5 times [2022-03-15 13:41:47,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:47,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134973066] [2022-03-15 13:41:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:47,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:47,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:47,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134973066] [2022-03-15 13:41:47,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134973066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:47,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:47,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:47,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050408946] [2022-03-15 13:41:47,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:47,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:47,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:47,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:47,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:47,426 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) [2022-03-15 13:41:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:47,535 INFO L93 Difference]: Finished difference Result 11362 states and 32124 transitions. [2022-03-15 13:41:47,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:47,536 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 [2022-03-15 13:41:47,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:47,557 INFO L225 Difference]: With dead ends: 11362 [2022-03-15 13:41:47,557 INFO L226 Difference]: Without dead ends: 11347 [2022-03-15 13:41:47,558 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 [2022-03-15 13:41:47,558 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 [2022-03-15 13:41:47,558 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] [2022-03-15 13:41:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-03-15 13:41:47,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5410. [2022-03-15 13:41:47,671 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) [2022-03-15 13:41:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 15229 transitions. [2022-03-15 13:41:47,682 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 15229 transitions. Word has length 210 [2022-03-15 13:41:47,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:47,682 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 15229 transitions. [2022-03-15 13:41:47,682 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) [2022-03-15 13:41:47,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15229 transitions. [2022-03-15 13:41:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-15 13:41:47,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:47,691 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] [2022-03-15 13:41:47,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 13:41:47,691 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:47,692 INFO L85 PathProgramCache]: Analyzing trace with hash 473292210, now seen corresponding path program 6 times [2022-03-15 13:41:47,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:47,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664219421] [2022-03-15 13:41:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:47,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:47,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664219421] [2022-03-15 13:41:47,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664219421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:47,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:47,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 13:41:47,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033677780] [2022-03-15 13:41:47,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:47,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 13:41:47,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:47,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 13:41:47,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:41:47,776 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) [2022-03-15 13:41:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:47,887 INFO L93 Difference]: Finished difference Result 9843 states and 28001 transitions. [2022-03-15 13:41:47,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:41:47,887 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 [2022-03-15 13:41:47,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:47,908 INFO L225 Difference]: With dead ends: 9843 [2022-03-15 13:41:47,908 INFO L226 Difference]: Without dead ends: 9828 [2022-03-15 13:41:47,908 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 [2022-03-15 13:41:47,909 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 [2022-03-15 13:41:47,909 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] [2022-03-15 13:41:47,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9828 states. [2022-03-15 13:41:48,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9828 to 5378. [2022-03-15 13:41:48,054 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) [2022-03-15 13:41:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15137 transitions. [2022-03-15 13:41:48,066 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15137 transitions. Word has length 210 [2022-03-15 13:41:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:48,066 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15137 transitions. [2022-03-15 13:41:48,066 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) [2022-03-15 13:41:48,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15137 transitions. [2022-03-15 13:41:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:41:48,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:48,074 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] [2022-03-15 13:41:48,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 13:41:48,075 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash 245695604, now seen corresponding path program 1 times [2022-03-15 13:41:48,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:48,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407159719] [2022-03-15 13:41:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:48,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:48,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:48,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407159719] [2022-03-15 13:41:48,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407159719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:48,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:48,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:41:48,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519500862] [2022-03-15 13:41:48,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:48,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:41:48,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:48,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:41:48,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:41:48,529 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) [2022-03-15 13:41:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:49,969 INFO L93 Difference]: Finished difference Result 20352 states and 57640 transitions. [2022-03-15 13:41:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 13:41:49,970 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 [2022-03-15 13:41:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:50,011 INFO L225 Difference]: With dead ends: 20352 [2022-03-15 13:41:50,011 INFO L226 Difference]: Without dead ends: 20352 [2022-03-15 13:41:50,012 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 [2022-03-15 13:41:50,012 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 [2022-03-15 13:41:50,013 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] [2022-03-15 13:41:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20352 states. [2022-03-15 13:41:50,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20352 to 6848. [2022-03-15 13:41:50,201 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) [2022-03-15 13:41:50,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 19194 transitions. [2022-03-15 13:41:50,215 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 19194 transitions. Word has length 223 [2022-03-15 13:41:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:50,215 INFO L470 AbstractCegarLoop]: Abstraction has 6848 states and 19194 transitions. [2022-03-15 13:41:50,215 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) [2022-03-15 13:41:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 19194 transitions. [2022-03-15 13:41:50,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:41:50,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:50,226 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] [2022-03-15 13:41:50,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 13:41:50,226 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:50,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:50,226 INFO L85 PathProgramCache]: Analyzing trace with hash -177626872, now seen corresponding path program 2 times [2022-03-15 13:41:50,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:50,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862815550] [2022-03-15 13:41:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:50,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:50,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:50,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862815550] [2022-03-15 13:41:50,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862815550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:50,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:50,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:41:50,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505240330] [2022-03-15 13:41:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:50,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:41:50,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:50,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:41:50,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:41:50,627 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) [2022-03-15 13:41:51,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:51,834 INFO L93 Difference]: Finished difference Result 19662 states and 55858 transitions. [2022-03-15 13:41:51,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:41:51,834 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 [2022-03-15 13:41:51,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:51,875 INFO L225 Difference]: With dead ends: 19662 [2022-03-15 13:41:51,875 INFO L226 Difference]: Without dead ends: 19662 [2022-03-15 13:41:51,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 13:41:51,876 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 [2022-03-15 13:41:51,876 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] [2022-03-15 13:41:51,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19662 states. [2022-03-15 13:41:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19662 to 6884. [2022-03-15 13:41:52,063 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) [2022-03-15 13:41:52,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 19329 transitions. [2022-03-15 13:41:52,077 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 19329 transitions. Word has length 223 [2022-03-15 13:41:52,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:52,077 INFO L470 AbstractCegarLoop]: Abstraction has 6884 states and 19329 transitions. [2022-03-15 13:41:52,077 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) [2022-03-15 13:41:52,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 19329 transitions. [2022-03-15 13:41:52,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:41:52,087 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:52,087 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] [2022-03-15 13:41:52,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 13:41:52,088 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:52,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:52,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1212045622, now seen corresponding path program 3 times [2022-03-15 13:41:52,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:52,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775934841] [2022-03-15 13:41:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:52,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:52,475 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:52,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:52,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775934841] [2022-03-15 13:41:52,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775934841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:52,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:52,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:41:52,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6350349] [2022-03-15 13:41:52,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:52,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:41:52,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:52,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:41:52,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:41:52,476 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) [2022-03-15 13:41:53,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:53,621 INFO L93 Difference]: Finished difference Result 15904 states and 45390 transitions. [2022-03-15 13:41:53,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:41:53,622 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 [2022-03-15 13:41:53,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:53,654 INFO L225 Difference]: With dead ends: 15904 [2022-03-15 13:41:53,654 INFO L226 Difference]: Without dead ends: 15904 [2022-03-15 13:41:53,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=420, Invalid=1650, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:41:53,655 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1595 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-03-15 13:41:53,655 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] [2022-03-15 13:41:53,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2022-03-15 13:41:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 6888. [2022-03-15 13:41:53,814 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) [2022-03-15 13:41:53,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 19344 transitions. [2022-03-15 13:41:53,829 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 19344 transitions. Word has length 223 [2022-03-15 13:41:53,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:53,829 INFO L470 AbstractCegarLoop]: Abstraction has 6888 states and 19344 transitions. [2022-03-15 13:41:53,829 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) [2022-03-15 13:41:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 19344 transitions. [2022-03-15 13:41:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:41:53,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:53,839 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] [2022-03-15 13:41:53,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 13:41:53,840 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:53,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:53,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1115900114, now seen corresponding path program 4 times [2022-03-15 13:41:53,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:53,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392703849] [2022-03-15 13:41:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:53,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:54,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:54,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392703849] [2022-03-15 13:41:54,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392703849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:54,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:54,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:41:54,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053965282] [2022-03-15 13:41:54,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:54,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:41:54,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:54,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:41:54,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:41:54,248 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) [2022-03-15 13:41:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:55,215 INFO L93 Difference]: Finished difference Result 14204 states and 40300 transitions. [2022-03-15 13:41:55,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:41:55,216 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 [2022-03-15 13:41:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:55,243 INFO L225 Difference]: With dead ends: 14204 [2022-03-15 13:41:55,243 INFO L226 Difference]: Without dead ends: 14204 [2022-03-15 13:41:55,244 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 [2022-03-15 13:41:55,244 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 [2022-03-15 13:41:55,244 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] [2022-03-15 13:41:55,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14204 states. [2022-03-15 13:41:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14204 to 6892. [2022-03-15 13:41:55,388 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) [2022-03-15 13:41:55,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 19363 transitions. [2022-03-15 13:41:55,402 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 19363 transitions. Word has length 223 [2022-03-15 13:41:55,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:55,403 INFO L470 AbstractCegarLoop]: Abstraction has 6892 states and 19363 transitions. [2022-03-15 13:41:55,403 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) [2022-03-15 13:41:55,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 19363 transitions. [2022-03-15 13:41:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:41:55,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:55,413 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] [2022-03-15 13:41:55,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 13:41:55,413 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:55,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2075401802, now seen corresponding path program 5 times [2022-03-15 13:41:55,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:55,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933669433] [2022-03-15 13:41:55,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:55,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:55,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:55,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933669433] [2022-03-15 13:41:55,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933669433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:55,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:55,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:41:55,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416426012] [2022-03-15 13:41:55,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:55,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:41:55,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:55,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:41:55,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:41:55,830 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) [2022-03-15 13:41:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:56,860 INFO L93 Difference]: Finished difference Result 13944 states and 39604 transitions. [2022-03-15 13:41:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:41:56,860 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 [2022-03-15 13:41:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:56,888 INFO L225 Difference]: With dead ends: 13944 [2022-03-15 13:41:56,888 INFO L226 Difference]: Without dead ends: 13944 [2022-03-15 13:41:56,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=390, Invalid=1502, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:41:56,889 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 [2022-03-15 13:41:56,889 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] [2022-03-15 13:41:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2022-03-15 13:41:57,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 6996. [2022-03-15 13:41:57,029 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) [2022-03-15 13:41:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 19661 transitions. [2022-03-15 13:41:57,044 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 19661 transitions. Word has length 223 [2022-03-15 13:41:57,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:57,044 INFO L470 AbstractCegarLoop]: Abstraction has 6996 states and 19661 transitions. [2022-03-15 13:41:57,044 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) [2022-03-15 13:41:57,044 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 19661 transitions. [2022-03-15 13:41:57,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:41:57,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:57,056 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] [2022-03-15 13:41:57,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 13:41:57,056 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:57,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:57,056 INFO L85 PathProgramCache]: Analyzing trace with hash 248086366, now seen corresponding path program 6 times [2022-03-15 13:41:57,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:57,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269847075] [2022-03-15 13:41:57,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:57,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:57,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:57,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269847075] [2022-03-15 13:41:57,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269847075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:57,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:57,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:41:57,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446595428] [2022-03-15 13:41:57,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:57,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:41:57,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:57,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:41:57,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:41:57,428 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) [2022-03-15 13:41:58,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:41:58,515 INFO L93 Difference]: Finished difference Result 21102 states and 60162 transitions. [2022-03-15 13:41:58,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-15 13:41:58,516 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 [2022-03-15 13:41:58,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:41:58,559 INFO L225 Difference]: With dead ends: 21102 [2022-03-15 13:41:58,559 INFO L226 Difference]: Without dead ends: 21102 [2022-03-15 13:41:58,560 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 [2022-03-15 13:41:58,561 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 [2022-03-15 13:41:58,561 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] [2022-03-15 13:41:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21102 states. [2022-03-15 13:41:58,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21102 to 7068. [2022-03-15 13:41:58,763 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) [2022-03-15 13:41:58,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 19895 transitions. [2022-03-15 13:41:58,778 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 19895 transitions. Word has length 223 [2022-03-15 13:41:58,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:41:58,779 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 19895 transitions. [2022-03-15 13:41:58,779 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) [2022-03-15 13:41:58,779 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 19895 transitions. [2022-03-15 13:41:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:41:58,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:41:58,789 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] [2022-03-15 13:41:58,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 13:41:58,789 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:41:58,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:41:58,789 INFO L85 PathProgramCache]: Analyzing trace with hash -786332384, now seen corresponding path program 7 times [2022-03-15 13:41:58,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:41:58,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029509325] [2022-03-15 13:41:58,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:41:58,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:41:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:41:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:41:59,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:41:59,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029509325] [2022-03-15 13:41:59,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029509325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:41:59,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:41:59,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:41:59,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817416313] [2022-03-15 13:41:59,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:41:59,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:41:59,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:41:59,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:41:59,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:41:59,148 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) [2022-03-15 13:42:00,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:00,109 INFO L93 Difference]: Finished difference Result 17996 states and 51659 transitions. [2022-03-15 13:42:00,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:42:00,109 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 [2022-03-15 13:42:00,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:00,146 INFO L225 Difference]: With dead ends: 17996 [2022-03-15 13:42:00,147 INFO L226 Difference]: Without dead ends: 17996 [2022-03-15 13:42:00,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=427, Invalid=1643, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:42:00,148 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 [2022-03-15 13:42:00,148 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] [2022-03-15 13:42:00,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-03-15 13:42:00,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 7072. [2022-03-15 13:42:00,326 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) [2022-03-15 13:42:00,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 19910 transitions. [2022-03-15 13:42:00,341 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 19910 transitions. Word has length 223 [2022-03-15 13:42:00,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:00,341 INFO L470 AbstractCegarLoop]: Abstraction has 7072 states and 19910 transitions. [2022-03-15 13:42:00,341 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) [2022-03-15 13:42:00,341 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 19910 transitions. [2022-03-15 13:42:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:00,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:00,375 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] [2022-03-15 13:42:00,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 13:42:00,376 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:00,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:00,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1541613352, now seen corresponding path program 8 times [2022-03-15 13:42:00,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:00,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920777534] [2022-03-15 13:42:00,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:00,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:00,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:00,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920777534] [2022-03-15 13:42:00,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920777534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:00,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:00,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:00,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973121966] [2022-03-15 13:42:00,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:00,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:00,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:00,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:00,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:00,701 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) [2022-03-15 13:42:01,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:01,569 INFO L93 Difference]: Finished difference Result 16296 states and 46569 transitions. [2022-03-15 13:42:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:42:01,569 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 [2022-03-15 13:42:01,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:01,601 INFO L225 Difference]: With dead ends: 16296 [2022-03-15 13:42:01,601 INFO L226 Difference]: Without dead ends: 16296 [2022-03-15 13:42:01,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=383, Invalid=1509, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:42:01,602 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 [2022-03-15 13:42:01,602 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] [2022-03-15 13:42:01,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-03-15 13:42:01,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 7076. [2022-03-15 13:42:01,773 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) [2022-03-15 13:42:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7076 states to 7076 states and 19929 transitions. [2022-03-15 13:42:01,787 INFO L78 Accepts]: Start accepts. Automaton has 7076 states and 19929 transitions. Word has length 223 [2022-03-15 13:42:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:01,787 INFO L470 AbstractCegarLoop]: Abstraction has 7076 states and 19929 transitions. [2022-03-15 13:42:01,787 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) [2022-03-15 13:42:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 7076 states and 19929 transitions. [2022-03-15 13:42:01,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:01,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:01,798 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] [2022-03-15 13:42:01,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 13:42:01,798 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:01,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:01,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1793852256, now seen corresponding path program 9 times [2022-03-15 13:42:01,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:01,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456704785] [2022-03-15 13:42:01,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:01,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:02,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:02,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456704785] [2022-03-15 13:42:02,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456704785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:02,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:02,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:02,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324901897] [2022-03-15 13:42:02,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:02,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:02,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:02,110 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) [2022-03-15 13:42:03,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:03,003 INFO L93 Difference]: Finished difference Result 16036 states and 45873 transitions. [2022-03-15 13:42:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:42:03,003 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 [2022-03-15 13:42:03,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:03,035 INFO L225 Difference]: With dead ends: 16036 [2022-03-15 13:42:03,036 INFO L226 Difference]: Without dead ends: 16036 [2022-03-15 13:42:03,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:42:03,037 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 [2022-03-15 13:42:03,037 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] [2022-03-15 13:42:03,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-03-15 13:42:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 7032. [2022-03-15 13:42:03,192 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) [2022-03-15 13:42:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 19760 transitions. [2022-03-15 13:42:03,207 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 19760 transitions. Word has length 223 [2022-03-15 13:42:03,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:03,207 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 19760 transitions. [2022-03-15 13:42:03,208 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) [2022-03-15 13:42:03,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 19760 transitions. [2022-03-15 13:42:03,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:03,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:03,218 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] [2022-03-15 13:42:03,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 13:42:03,218 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:03,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:03,218 INFO L85 PathProgramCache]: Analyzing trace with hash 559291998, now seen corresponding path program 10 times [2022-03-15 13:42:03,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:03,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567258847] [2022-03-15 13:42:03,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:03,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:03,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:03,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567258847] [2022-03-15 13:42:03,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567258847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:03,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:03,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:03,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027683742] [2022-03-15 13:42:03,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:03,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:03,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:03,596 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) [2022-03-15 13:42:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:04,461 INFO L93 Difference]: Finished difference Result 16588 states and 47447 transitions. [2022-03-15 13:42:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:42:04,462 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 [2022-03-15 13:42:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:04,494 INFO L225 Difference]: With dead ends: 16588 [2022-03-15 13:42:04,494 INFO L226 Difference]: Without dead ends: 16588 [2022-03-15 13:42:04,495 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 [2022-03-15 13:42:04,495 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 [2022-03-15 13:42:04,495 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] [2022-03-15 13:42:04,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16588 states. [2022-03-15 13:42:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16588 to 7040. [2022-03-15 13:42:04,649 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) [2022-03-15 13:42:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-03-15 13:42:04,664 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-03-15 13:42:04,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:04,664 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-03-15 13:42:04,665 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) [2022-03-15 13:42:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-03-15 13:42:04,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:04,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:04,675 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] [2022-03-15 13:42:04,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 13:42:04,675 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:04,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:04,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1407729562, now seen corresponding path program 11 times [2022-03-15 13:42:04,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:04,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673255366] [2022-03-15 13:42:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:04,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:04,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:04,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673255366] [2022-03-15 13:42:04,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673255366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:04,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:04,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:04,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26762900] [2022-03-15 13:42:04,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:04,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:04,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:04,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:04,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:04,991 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) [2022-03-15 13:42:05,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:05,831 INFO L93 Difference]: Finished difference Result 15344 states and 43775 transitions. [2022-03-15 13:42:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:42:05,831 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 [2022-03-15 13:42:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:05,864 INFO L225 Difference]: With dead ends: 15344 [2022-03-15 13:42:05,864 INFO L226 Difference]: Without dead ends: 15344 [2022-03-15 13:42:05,865 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 [2022-03-15 13:42:05,867 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 [2022-03-15 13:42:05,867 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] [2022-03-15 13:42:05,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2022-03-15 13:42:06,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 7044. [2022-03-15 13:42:06,019 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) [2022-03-15 13:42:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-03-15 13:42:06,033 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-03-15 13:42:06,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:06,034 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-03-15 13:42:06,034 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) [2022-03-15 13:42:06,034 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-03-15 13:42:06,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:06,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:06,044 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] [2022-03-15 13:42:06,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 13:42:06,045 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:06,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:06,045 INFO L85 PathProgramCache]: Analyzing trace with hash -448227874, now seen corresponding path program 12 times [2022-03-15 13:42:06,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:06,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046841861] [2022-03-15 13:42:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:06,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:06,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:06,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046841861] [2022-03-15 13:42:06,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046841861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:06,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:06,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:06,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127356818] [2022-03-15 13:42:06,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:06,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:06,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:06,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:06,384 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) [2022-03-15 13:42:07,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:07,194 INFO L93 Difference]: Finished difference Result 15084 states and 43079 transitions. [2022-03-15 13:42:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:42:07,194 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 [2022-03-15 13:42:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:07,224 INFO L225 Difference]: With dead ends: 15084 [2022-03-15 13:42:07,224 INFO L226 Difference]: Without dead ends: 15084 [2022-03-15 13:42:07,224 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 [2022-03-15 13:42:07,225 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1334 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-15 13:42:07,225 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] [2022-03-15 13:42:07,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15084 states. [2022-03-15 13:42:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15084 to 7036. [2022-03-15 13:42:07,375 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) [2022-03-15 13:42:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 19771 transitions. [2022-03-15 13:42:07,389 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 19771 transitions. Word has length 223 [2022-03-15 13:42:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:07,389 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 19771 transitions. [2022-03-15 13:42:07,389 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) [2022-03-15 13:42:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 19771 transitions. [2022-03-15 13:42:07,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:07,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:07,399 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] [2022-03-15 13:42:07,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 13:42:07,400 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:07,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:07,400 INFO L85 PathProgramCache]: Analyzing trace with hash -526466794, now seen corresponding path program 13 times [2022-03-15 13:42:07,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:07,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883888082] [2022-03-15 13:42:07,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:07,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:07,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:07,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883888082] [2022-03-15 13:42:07,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883888082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:07,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:07,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:07,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116424728] [2022-03-15 13:42:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:07,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:07,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:07,714 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) [2022-03-15 13:42:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:08,541 INFO L93 Difference]: Finished difference Result 14852 states and 42250 transitions. [2022-03-15 13:42:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:42:08,541 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 [2022-03-15 13:42:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:08,570 INFO L225 Difference]: With dead ends: 14852 [2022-03-15 13:42:08,571 INFO L226 Difference]: Without dead ends: 14852 [2022-03-15 13:42:08,571 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 [2022-03-15 13:42:08,572 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 [2022-03-15 13:42:08,572 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] [2022-03-15 13:42:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14852 states. [2022-03-15 13:42:08,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 7044. [2022-03-15 13:42:08,720 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) [2022-03-15 13:42:08,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-03-15 13:42:08,735 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-03-15 13:42:08,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:08,735 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-03-15 13:42:08,736 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) [2022-03-15 13:42:08,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-03-15 13:42:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:08,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:08,746 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] [2022-03-15 13:42:08,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 13:42:08,746 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:08,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:08,746 INFO L85 PathProgramCache]: Analyzing trace with hash 433034894, now seen corresponding path program 14 times [2022-03-15 13:42:08,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:08,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778580691] [2022-03-15 13:42:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:08,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:09,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:09,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778580691] [2022-03-15 13:42:09,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778580691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:09,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:09,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:09,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530440249] [2022-03-15 13:42:09,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:09,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:09,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:09,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:09,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:09,058 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) [2022-03-15 13:42:09,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:09,903 INFO L93 Difference]: Finished difference Result 14676 states and 41797 transitions. [2022-03-15 13:42:09,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:42:09,904 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 [2022-03-15 13:42:09,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:09,931 INFO L225 Difference]: With dead ends: 14676 [2022-03-15 13:42:09,932 INFO L226 Difference]: Without dead ends: 14676 [2022-03-15 13:42:09,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-03-15 13:42:09,932 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1351 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-15 13:42:09,933 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] [2022-03-15 13:42:09,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-03-15 13:42:10,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 7040. [2022-03-15 13:42:10,075 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) [2022-03-15 13:42:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-03-15 13:42:10,089 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-03-15 13:42:10,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:10,089 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-03-15 13:42:10,089 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) [2022-03-15 13:42:10,089 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-03-15 13:42:10,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:10,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:10,100 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] [2022-03-15 13:42:10,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 13:42:10,100 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:10,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:10,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1262740864, now seen corresponding path program 15 times [2022-03-15 13:42:10,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:10,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133405551] [2022-03-15 13:42:10,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:10,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:10,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:10,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133405551] [2022-03-15 13:42:10,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133405551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:10,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:10,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:42:10,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627236124] [2022-03-15 13:42:10,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:10,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:42:10,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:10,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:42:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:42:10,416 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) [2022-03-15 13:42:11,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:11,316 INFO L93 Difference]: Finished difference Result 15708 states and 44747 transitions. [2022-03-15 13:42:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:42:11,316 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 [2022-03-15 13:42:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:11,345 INFO L225 Difference]: With dead ends: 15708 [2022-03-15 13:42:11,346 INFO L226 Difference]: Without dead ends: 15708 [2022-03-15 13:42:11,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=449, Invalid=1621, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 13:42:11,347 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1550 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-15 13:42:11,347 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] [2022-03-15 13:42:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15708 states. [2022-03-15 13:42:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15708 to 7144. [2022-03-15 13:42:11,504 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) [2022-03-15 13:42:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 20084 transitions. [2022-03-15 13:42:11,519 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 20084 transitions. Word has length 223 [2022-03-15 13:42:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:11,520 INFO L470 AbstractCegarLoop]: Abstraction has 7144 states and 20084 transitions. [2022-03-15 13:42:11,520 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) [2022-03-15 13:42:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 20084 transitions. [2022-03-15 13:42:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:11,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:11,531 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] [2022-03-15 13:42:11,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 13:42:11,531 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:11,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:11,532 INFO L85 PathProgramCache]: Analyzing trace with hash 550123268, now seen corresponding path program 16 times [2022-03-15 13:42:11,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:11,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523042163] [2022-03-15 13:42:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:11,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:11,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:11,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523042163] [2022-03-15 13:42:11,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523042163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:11,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:11,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:11,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707149107] [2022-03-15 13:42:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:11,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:11,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:11,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:11,799 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) [2022-03-15 13:42:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:12,552 INFO L93 Difference]: Finished difference Result 24183 states and 68741 transitions. [2022-03-15 13:42:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 13:42:12,553 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 [2022-03-15 13:42:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:12,600 INFO L225 Difference]: With dead ends: 24183 [2022-03-15 13:42:12,600 INFO L226 Difference]: Without dead ends: 24183 [2022-03-15 13:42:12,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:42:12,601 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:12,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 3823 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:42:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-03-15 13:42:12,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 7540. [2022-03-15 13:42:12,813 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) [2022-03-15 13:42:12,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-03-15 13:42:12,828 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-03-15 13:42:12,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:12,828 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-03-15 13:42:12,828 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) [2022-03-15 13:42:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-03-15 13:42:12,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:12,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:12,839 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] [2022-03-15 13:42:12,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 13:42:12,839 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:12,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:12,839 INFO L85 PathProgramCache]: Analyzing trace with hash -484295482, now seen corresponding path program 17 times [2022-03-15 13:42:12,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:12,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809820216] [2022-03-15 13:42:12,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:12,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:13,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:13,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809820216] [2022-03-15 13:42:13,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809820216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:13,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:13,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:13,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379989614] [2022-03-15 13:42:13,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:13,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:13,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:13,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:13,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:13,076 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) [2022-03-15 13:42:13,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:13,761 INFO L93 Difference]: Finished difference Result 21077 states and 60238 transitions. [2022-03-15 13:42:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:13,761 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 [2022-03-15 13:42:13,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:13,805 INFO L225 Difference]: With dead ends: 21077 [2022-03-15 13:42:13,805 INFO L226 Difference]: Without dead ends: 21077 [2022-03-15 13:42:13,805 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 [2022-03-15 13:42:13,806 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1039 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:13,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 3913 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:42:13,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21077 states. [2022-03-15 13:42:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21077 to 7544. [2022-03-15 13:42:14,012 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) [2022-03-15 13:42:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-03-15 13:42:14,027 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-03-15 13:42:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:14,028 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-03-15 13:42:14,028 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) [2022-03-15 13:42:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-03-15 13:42:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:14,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:14,039 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] [2022-03-15 13:42:14,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 13:42:14,039 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:14,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:14,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1843650254, now seen corresponding path program 18 times [2022-03-15 13:42:14,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:14,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010679876] [2022-03-15 13:42:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:14,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:14,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:14,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010679876] [2022-03-15 13:42:14,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010679876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:14,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:14,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:14,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887665067] [2022-03-15 13:42:14,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:14,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:14,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:14,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:14,266 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) [2022-03-15 13:42:14,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:14,841 INFO L93 Difference]: Finished difference Result 19377 states and 55148 transitions. [2022-03-15 13:42:14,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:14,841 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 [2022-03-15 13:42:14,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:14,931 INFO L225 Difference]: With dead ends: 19377 [2022-03-15 13:42:14,931 INFO L226 Difference]: Without dead ends: 19377 [2022-03-15 13:42:14,932 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 [2022-03-15 13:42:14,932 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 [2022-03-15 13:42:14,932 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] [2022-03-15 13:42:14,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19377 states. [2022-03-15 13:42:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19377 to 7548. [2022-03-15 13:42:15,098 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) [2022-03-15 13:42:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-03-15 13:42:15,114 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-03-15 13:42:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:15,114 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-03-15 13:42:15,114 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) [2022-03-15 13:42:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-03-15 13:42:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:15,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:15,125 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] [2022-03-15 13:42:15,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 13:42:15,125 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:15,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:15,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1491815354, now seen corresponding path program 19 times [2022-03-15 13:42:15,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:15,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040406893] [2022-03-15 13:42:15,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:15,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:15,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:15,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040406893] [2022-03-15 13:42:15,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040406893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:15,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:15,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:15,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46816563] [2022-03-15 13:42:15,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:15,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:15,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:15,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:15,352 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) [2022-03-15 13:42:15,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:15,917 INFO L93 Difference]: Finished difference Result 19117 states and 54452 transitions. [2022-03-15 13:42:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:15,918 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 [2022-03-15 13:42:15,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:15,955 INFO L225 Difference]: With dead ends: 19117 [2022-03-15 13:42:15,956 INFO L226 Difference]: Without dead ends: 19117 [2022-03-15 13:42:15,956 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 [2022-03-15 13:42:15,956 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 [2022-03-15 13:42:15,957 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] [2022-03-15 13:42:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19117 states. [2022-03-15 13:42:16,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19117 to 7504. [2022-03-15 13:42:16,132 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) [2022-03-15 13:42:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-03-15 13:42:16,146 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-03-15 13:42:16,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:16,146 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-03-15 13:42:16,146 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) [2022-03-15 13:42:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-03-15 13:42:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:16,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:16,156 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] [2022-03-15 13:42:16,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 13:42:16,157 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:16,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash 861328900, now seen corresponding path program 20 times [2022-03-15 13:42:16,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:16,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419976240] [2022-03-15 13:42:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:16,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:16,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419976240] [2022-03-15 13:42:16,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419976240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:16,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:16,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:16,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800906387] [2022-03-15 13:42:16,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:16,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:16,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:16,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:16,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:16,408 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) [2022-03-15 13:42:16,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:16,998 INFO L93 Difference]: Finished difference Result 21573 states and 61766 transitions. [2022-03-15 13:42:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:16,998 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 [2022-03-15 13:42:16,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:17,042 INFO L225 Difference]: With dead ends: 21573 [2022-03-15 13:42:17,043 INFO L226 Difference]: Without dead ends: 21573 [2022-03-15 13:42:17,043 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 [2022-03-15 13:42:17,044 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1562 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 13:42:17,044 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] [2022-03-15 13:42:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21573 states. [2022-03-15 13:42:17,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21573 to 7512. [2022-03-15 13:42:17,273 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) [2022-03-15 13:42:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-15 13:42:17,288 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-15 13:42:17,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:17,288 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-15 13:42:17,288 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) [2022-03-15 13:42:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-15 13:42:17,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:17,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:17,298 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] [2022-03-15 13:42:17,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 13:42:17,299 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1105692660, now seen corresponding path program 21 times [2022-03-15 13:42:17,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:17,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972385975] [2022-03-15 13:42:17,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:17,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:17,544 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:17,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:17,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972385975] [2022-03-15 13:42:17,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972385975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:17,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:17,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:17,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386268348] [2022-03-15 13:42:17,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:17,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:17,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:17,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:17,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:17,545 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) [2022-03-15 13:42:18,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:18,126 INFO L93 Difference]: Finished difference Result 20329 states and 58094 transitions. [2022-03-15 13:42:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:18,126 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 [2022-03-15 13:42:18,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:18,165 INFO L225 Difference]: With dead ends: 20329 [2022-03-15 13:42:18,166 INFO L226 Difference]: Without dead ends: 20329 [2022-03-15 13:42:18,167 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 [2022-03-15 13:42:18,167 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 [2022-03-15 13:42:18,167 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] [2022-03-15 13:42:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20329 states. [2022-03-15 13:42:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20329 to 7516. [2022-03-15 13:42:18,356 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) [2022-03-15 13:42:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-15 13:42:18,371 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-15 13:42:18,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:18,371 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-15 13:42:18,372 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) [2022-03-15 13:42:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-15 13:42:18,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:18,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:18,382 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] [2022-03-15 13:42:18,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 13:42:18,383 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:18,383 INFO L85 PathProgramCache]: Analyzing trace with hash -146190972, now seen corresponding path program 22 times [2022-03-15 13:42:18,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:18,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690618253] [2022-03-15 13:42:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:18,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:18,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690618253] [2022-03-15 13:42:18,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690618253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:18,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:18,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:18,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552569284] [2022-03-15 13:42:18,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:18,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:18,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:18,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:18,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:18,629 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) [2022-03-15 13:42:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:19,202 INFO L93 Difference]: Finished difference Result 20069 states and 57398 transitions. [2022-03-15 13:42:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:19,202 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 [2022-03-15 13:42:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:19,241 INFO L225 Difference]: With dead ends: 20069 [2022-03-15 13:42:19,241 INFO L226 Difference]: Without dead ends: 20069 [2022-03-15 13:42:19,242 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 [2022-03-15 13:42:19,242 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:19,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 3399 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:42:19,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20069 states. [2022-03-15 13:42:19,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20069 to 7508. [2022-03-15 13:42:19,426 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) [2022-03-15 13:42:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-03-15 13:42:19,505 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-03-15 13:42:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:19,505 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-03-15 13:42:19,505 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) [2022-03-15 13:42:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-03-15 13:42:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:19,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:19,515 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] [2022-03-15 13:42:19,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 13:42:19,515 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:19,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash -224429892, now seen corresponding path program 23 times [2022-03-15 13:42:19,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:19,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111610801] [2022-03-15 13:42:19,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:19,746 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:19,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:19,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111610801] [2022-03-15 13:42:19,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111610801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:19,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:19,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:19,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404110581] [2022-03-15 13:42:19,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:19,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:19,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:19,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:19,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:19,748 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) [2022-03-15 13:42:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:20,273 INFO L93 Difference]: Finished difference Result 19837 states and 56569 transitions. [2022-03-15 13:42:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:20,274 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 [2022-03-15 13:42:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:20,313 INFO L225 Difference]: With dead ends: 19837 [2022-03-15 13:42:20,314 INFO L226 Difference]: Without dead ends: 19837 [2022-03-15 13:42:20,314 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 [2022-03-15 13:42:20,315 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1300 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 13:42:20,315 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] [2022-03-15 13:42:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2022-03-15 13:42:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 7516. [2022-03-15 13:42:20,501 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) [2022-03-15 13:42:20,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-15 13:42:20,516 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-15 13:42:20,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:20,516 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-15 13:42:20,516 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) [2022-03-15 13:42:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-15 13:42:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:20,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:20,528 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] [2022-03-15 13:42:20,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 13:42:20,528 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash 735071796, now seen corresponding path program 24 times [2022-03-15 13:42:20,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:20,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246206878] [2022-03-15 13:42:20,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:20,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:20,772 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:20,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:20,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246206878] [2022-03-15 13:42:20,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246206878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:20,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:20,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:20,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377628654] [2022-03-15 13:42:20,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:20,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:20,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:20,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:20,773 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) [2022-03-15 13:42:21,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:21,319 INFO L93 Difference]: Finished difference Result 19661 states and 56116 transitions. [2022-03-15 13:42:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:21,320 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 [2022-03-15 13:42:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:21,356 INFO L225 Difference]: With dead ends: 19661 [2022-03-15 13:42:21,356 INFO L226 Difference]: Without dead ends: 19661 [2022-03-15 13:42:21,359 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 [2022-03-15 13:42:21,359 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1086 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 13:42:21,359 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] [2022-03-15 13:42:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19661 states. [2022-03-15 13:42:21,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19661 to 7512. [2022-03-15 13:42:21,548 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) [2022-03-15 13:42:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-15 13:42:21,563 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-15 13:42:21,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:21,563 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-15 13:42:21,563 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) [2022-03-15 13:42:21,563 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-15 13:42:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:21,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:21,574 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] [2022-03-15 13:42:21,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 13:42:21,574 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:21,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash -960703962, now seen corresponding path program 25 times [2022-03-15 13:42:21,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:21,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761862644] [2022-03-15 13:42:21,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:21,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:21,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:21,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761862644] [2022-03-15 13:42:21,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761862644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:21,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:21,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:21,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084335684] [2022-03-15 13:42:21,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:21,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:21,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:21,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:21,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:21,849 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) [2022-03-15 13:42:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:22,461 INFO L93 Difference]: Finished difference Result 20797 states and 59364 transitions. [2022-03-15 13:42:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:22,461 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 [2022-03-15 13:42:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:22,507 INFO L225 Difference]: With dead ends: 20797 [2022-03-15 13:42:22,508 INFO L226 Difference]: Without dead ends: 20797 [2022-03-15 13:42:22,508 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 [2022-03-15 13:42:22,508 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1166 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 13:42:22,509 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] [2022-03-15 13:42:22,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2022-03-15 13:42:22,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 7468. [2022-03-15 13:42:22,713 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) [2022-03-15 13:42:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 20975 transitions. [2022-03-15 13:42:22,729 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 20975 transitions. Word has length 223 [2022-03-15 13:42:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:22,729 INFO L470 AbstractCegarLoop]: Abstraction has 7468 states and 20975 transitions. [2022-03-15 13:42:22,729 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) [2022-03-15 13:42:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 20975 transitions. [2022-03-15 13:42:22,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:22,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:22,740 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] [2022-03-15 13:42:22,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 13:42:22,741 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:22,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:22,741 INFO L85 PathProgramCache]: Analyzing trace with hash -353734266, now seen corresponding path program 26 times [2022-03-15 13:42:22,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:22,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698564479] [2022-03-15 13:42:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:22,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:23,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:23,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698564479] [2022-03-15 13:42:23,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698564479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:23,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:23,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:23,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779022187] [2022-03-15 13:42:23,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:23,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:23,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:23,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:23,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:23,004 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) [2022-03-15 13:42:23,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:23,643 INFO L93 Difference]: Finished difference Result 19585 states and 55795 transitions. [2022-03-15 13:42:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:23,643 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 [2022-03-15 13:42:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:23,683 INFO L225 Difference]: With dead ends: 19585 [2022-03-15 13:42:23,683 INFO L226 Difference]: Without dead ends: 19585 [2022-03-15 13:42:23,684 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 [2022-03-15 13:42:23,684 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 [2022-03-15 13:42:23,684 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] [2022-03-15 13:42:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19585 states. [2022-03-15 13:42:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19585 to 7512. [2022-03-15 13:42:23,867 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) [2022-03-15 13:42:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-15 13:42:23,882 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-15 13:42:23,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:23,883 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-15 13:42:23,883 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) [2022-03-15 13:42:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-15 13:42:23,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:23,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:23,893 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] [2022-03-15 13:42:23,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 13:42:23,894 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:23,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:23,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1974211470, now seen corresponding path program 27 times [2022-03-15 13:42:23,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:23,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394226551] [2022-03-15 13:42:23,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:23,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:24,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:24,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394226551] [2022-03-15 13:42:24,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394226551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:24,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:24,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:24,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74649957] [2022-03-15 13:42:24,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:24,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:24,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:24,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:24,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:24,150 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) [2022-03-15 13:42:24,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:24,735 INFO L93 Difference]: Finished difference Result 18341 states and 52123 transitions. [2022-03-15 13:42:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:24,736 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 [2022-03-15 13:42:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:24,771 INFO L225 Difference]: With dead ends: 18341 [2022-03-15 13:42:24,772 INFO L226 Difference]: Without dead ends: 18341 [2022-03-15 13:42:24,772 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 [2022-03-15 13:42:24,772 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 932 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-15 13:42:24,772 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] [2022-03-15 13:42:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18341 states. [2022-03-15 13:42:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18341 to 7516. [2022-03-15 13:42:24,951 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) [2022-03-15 13:42:24,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-15 13:42:24,966 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-15 13:42:24,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:24,966 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-15 13:42:24,967 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) [2022-03-15 13:42:24,967 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-15 13:42:24,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:24,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:24,977 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] [2022-03-15 13:42:24,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 13:42:24,978 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:24,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:24,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1361254138, now seen corresponding path program 28 times [2022-03-15 13:42:24,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:24,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669623780] [2022-03-15 13:42:24,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:24,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:25,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:25,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669623780] [2022-03-15 13:42:25,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669623780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:25,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:25,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:25,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94704175] [2022-03-15 13:42:25,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:25,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:25,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:25,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:25,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:25,208 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) [2022-03-15 13:42:25,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:25,711 INFO L93 Difference]: Finished difference Result 18081 states and 51427 transitions. [2022-03-15 13:42:25,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:25,712 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 [2022-03-15 13:42:25,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:25,748 INFO L225 Difference]: With dead ends: 18081 [2022-03-15 13:42:25,748 INFO L226 Difference]: Without dead ends: 18081 [2022-03-15 13:42:25,749 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 [2022-03-15 13:42:25,749 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 [2022-03-15 13:42:25,749 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] [2022-03-15 13:42:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18081 states. [2022-03-15 13:42:25,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18081 to 7508. [2022-03-15 13:42:25,921 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) [2022-03-15 13:42:25,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-03-15 13:42:25,938 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-03-15 13:42:25,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:25,938 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-03-15 13:42:25,938 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) [2022-03-15 13:42:25,938 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-03-15 13:42:25,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:25,949 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:25,949 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] [2022-03-15 13:42:25,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 13:42:25,950 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:25,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:25,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1439493058, now seen corresponding path program 29 times [2022-03-15 13:42:25,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:25,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761355482] [2022-03-15 13:42:25,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:25,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:26,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:26,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761355482] [2022-03-15 13:42:26,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761355482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:26,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:26,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:26,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437346163] [2022-03-15 13:42:26,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:26,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:26,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:26,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:26,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:26,197 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) [2022-03-15 13:42:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:26,780 INFO L93 Difference]: Finished difference Result 18749 states and 53401 transitions. [2022-03-15 13:42:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:26,780 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 [2022-03-15 13:42:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:26,818 INFO L225 Difference]: With dead ends: 18749 [2022-03-15 13:42:26,818 INFO L226 Difference]: Without dead ends: 18749 [2022-03-15 13:42:26,818 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 [2022-03-15 13:42:26,819 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 [2022-03-15 13:42:26,819 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] [2022-03-15 13:42:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18749 states. [2022-03-15 13:42:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18749 to 7516. [2022-03-15 13:42:27,028 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) [2022-03-15 13:42:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-03-15 13:42:27,043 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-03-15 13:42:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:27,044 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-03-15 13:42:27,044 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) [2022-03-15 13:42:27,044 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-03-15 13:42:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:27,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:27,054 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] [2022-03-15 13:42:27,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 13:42:27,055 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:27,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:27,055 INFO L85 PathProgramCache]: Analyzing trace with hash -479991370, now seen corresponding path program 30 times [2022-03-15 13:42:27,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:27,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045976270] [2022-03-15 13:42:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:27,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:27,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:27,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045976270] [2022-03-15 13:42:27,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045976270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:27,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:27,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:27,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178085212] [2022-03-15 13:42:27,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:27,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:27,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:27,278 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) [2022-03-15 13:42:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:27,775 INFO L93 Difference]: Finished difference Result 18573 states and 52948 transitions. [2022-03-15 13:42:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:27,775 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 [2022-03-15 13:42:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:27,811 INFO L225 Difference]: With dead ends: 18573 [2022-03-15 13:42:27,811 INFO L226 Difference]: Without dead ends: 18573 [2022-03-15 13:42:27,811 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 [2022-03-15 13:42:27,811 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 [2022-03-15 13:42:27,812 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] [2022-03-15 13:42:27,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18573 states. [2022-03-15 13:42:27,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18573 to 7512. [2022-03-15 13:42:27,992 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) [2022-03-15 13:42:28,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-03-15 13:42:28,007 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-03-15 13:42:28,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:28,007 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-03-15 13:42:28,008 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) [2022-03-15 13:42:28,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-03-15 13:42:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:28,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:28,018 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] [2022-03-15 13:42:28,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 13:42:28,018 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:28,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:28,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2119200168, now seen corresponding path program 31 times [2022-03-15 13:42:28,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:28,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582627929] [2022-03-15 13:42:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:28,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:28,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:28,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582627929] [2022-03-15 13:42:28,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582627929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:28,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:28,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:28,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377833970] [2022-03-15 13:42:28,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:28,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:28,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:28,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:28,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:28,263 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) [2022-03-15 13:42:28,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:28,859 INFO L93 Difference]: Finished difference Result 19757 states and 56328 transitions. [2022-03-15 13:42:28,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:28,860 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 [2022-03-15 13:42:28,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:28,900 INFO L225 Difference]: With dead ends: 19757 [2022-03-15 13:42:28,900 INFO L226 Difference]: Without dead ends: 19757 [2022-03-15 13:42:28,900 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 [2022-03-15 13:42:28,900 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1386 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-15 13:42:28,901 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] [2022-03-15 13:42:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19757 states. [2022-03-15 13:42:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19757 to 7504. [2022-03-15 13:42:29,086 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) [2022-03-15 13:42:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-03-15 13:42:29,163 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-03-15 13:42:29,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:29,163 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-03-15 13:42:29,163 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) [2022-03-15 13:42:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-03-15 13:42:29,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:29,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:29,173 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] [2022-03-15 13:42:29,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 13:42:29,173 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:29,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1905302994, now seen corresponding path program 32 times [2022-03-15 13:42:29,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:29,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546513361] [2022-03-15 13:42:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:29,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:29,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546513361] [2022-03-15 13:42:29,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546513361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:29,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:29,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:29,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123963809] [2022-03-15 13:42:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:29,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:29,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:29,393 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) [2022-03-15 13:42:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:29,909 INFO L93 Difference]: Finished difference Result 17845 states and 50587 transitions. [2022-03-15 13:42:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:29,909 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 [2022-03-15 13:42:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:29,947 INFO L225 Difference]: With dead ends: 17845 [2022-03-15 13:42:29,947 INFO L226 Difference]: Without dead ends: 17845 [2022-03-15 13:42:29,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 13:42:29,948 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:29,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1285 Valid, 3088 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:42:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17845 states. [2022-03-15 13:42:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17845 to 7548. [2022-03-15 13:42:30,120 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) [2022-03-15 13:42:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-03-15 13:42:30,135 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-03-15 13:42:30,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:30,136 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-03-15 13:42:30,136 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) [2022-03-15 13:42:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-03-15 13:42:30,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:30,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:30,146 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] [2022-03-15 13:42:30,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 13:42:30,147 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:30,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:30,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1430162614, now seen corresponding path program 33 times [2022-03-15 13:42:30,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:30,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694483204] [2022-03-15 13:42:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:30,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:30,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:30,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694483204] [2022-03-15 13:42:30,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694483204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:30,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:30,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:30,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244244157] [2022-03-15 13:42:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:30,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:30,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:30,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:30,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:30,361 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) [2022-03-15 13:42:30,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:30,906 INFO L93 Difference]: Finished difference Result 17669 states and 50134 transitions. [2022-03-15 13:42:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:30,906 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 [2022-03-15 13:42:30,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:30,941 INFO L225 Difference]: With dead ends: 17669 [2022-03-15 13:42:30,942 INFO L226 Difference]: Without dead ends: 17669 [2022-03-15 13:42:30,942 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 [2022-03-15 13:42:30,942 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1149 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 13:42:30,942 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] [2022-03-15 13:42:30,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17669 states. [2022-03-15 13:42:31,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17669 to 7544. [2022-03-15 13:42:31,112 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) [2022-03-15 13:42:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-03-15 13:42:31,127 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-03-15 13:42:31,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:31,127 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-03-15 13:42:31,127 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) [2022-03-15 13:42:31,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-03-15 13:42:31,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:31,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:31,138 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] [2022-03-15 13:42:31,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 13:42:31,138 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1169028924, now seen corresponding path program 34 times [2022-03-15 13:42:31,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:31,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812345099] [2022-03-15 13:42:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:31,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:31,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:31,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812345099] [2022-03-15 13:42:31,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812345099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:31,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:31,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:31,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294839796] [2022-03-15 13:42:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:31,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:31,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:31,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:31,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:31,381 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) [2022-03-15 13:42:31,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:31,984 INFO L93 Difference]: Finished difference Result 19309 states and 54928 transitions. [2022-03-15 13:42:31,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:31,984 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 [2022-03-15 13:42:31,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:32,021 INFO L225 Difference]: With dead ends: 19309 [2022-03-15 13:42:32,022 INFO L226 Difference]: Without dead ends: 19309 [2022-03-15 13:42:32,022 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 [2022-03-15 13:42:32,022 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1385 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-15 13:42:32,022 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] [2022-03-15 13:42:32,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19309 states. [2022-03-15 13:42:32,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19309 to 7540. [2022-03-15 13:42:32,199 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) [2022-03-15 13:42:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-03-15 13:42:32,215 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-03-15 13:42:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:32,215 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-03-15 13:42:32,215 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) [2022-03-15 13:42:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-03-15 13:42:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:32,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:32,226 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] [2022-03-15 13:42:32,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 13:42:32,226 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:32,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash 613147846, now seen corresponding path program 35 times [2022-03-15 13:42:32,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:32,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473989578] [2022-03-15 13:42:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:32,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:32,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:32,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473989578] [2022-03-15 13:42:32,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473989578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:32,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:32,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:32,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375156650] [2022-03-15 13:42:32,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:32,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:32,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:32,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:32,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:32,456 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) [2022-03-15 13:42:33,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:33,107 INFO L93 Difference]: Finished difference Result 22163 states and 62736 transitions. [2022-03-15 13:42:33,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 13:42:33,108 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 [2022-03-15 13:42:33,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:33,152 INFO L225 Difference]: With dead ends: 22163 [2022-03-15 13:42:33,153 INFO L226 Difference]: Without dead ends: 22163 [2022-03-15 13:42:33,153 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 [2022-03-15 13:42:33,153 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 [2022-03-15 13:42:33,153 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] [2022-03-15 13:42:33,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22163 states. [2022-03-15 13:42:33,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22163 to 8476. [2022-03-15 13:42:33,361 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) [2022-03-15 13:42:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 23891 transitions. [2022-03-15 13:42:33,379 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 23891 transitions. Word has length 223 [2022-03-15 13:42:33,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:33,380 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 23891 transitions. [2022-03-15 13:42:33,380 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) [2022-03-15 13:42:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 23891 transitions. [2022-03-15 13:42:33,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:33,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:33,393 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] [2022-03-15 13:42:33,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 13:42:33,393 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:33,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:33,393 INFO L85 PathProgramCache]: Analyzing trace with hash -638066722, now seen corresponding path program 36 times [2022-03-15 13:42:33,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:33,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223202488] [2022-03-15 13:42:33,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:33,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:33,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:33,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223202488] [2022-03-15 13:42:33,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223202488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:33,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:33,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:33,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219829701] [2022-03-15 13:42:33,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:33,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:33,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:33,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:33,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:33,626 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) [2022-03-15 13:42:34,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:34,347 INFO L93 Difference]: Finished difference Result 23424 states and 66686 transitions. [2022-03-15 13:42:34,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 13:42:34,348 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 [2022-03-15 13:42:34,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:34,393 INFO L225 Difference]: With dead ends: 23424 [2022-03-15 13:42:34,393 INFO L226 Difference]: Without dead ends: 23424 [2022-03-15 13:42:34,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:42:34,394 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:34,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1292 Valid, 3956 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:42:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23424 states. [2022-03-15 13:42:34,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23424 to 8620. [2022-03-15 13:42:34,615 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) [2022-03-15 13:42:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-03-15 13:42:34,633 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-03-15 13:42:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:34,633 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-03-15 13:42:34,633 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) [2022-03-15 13:42:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-03-15 13:42:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:34,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:34,646 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] [2022-03-15 13:42:34,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 13:42:34,646 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:34,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash 114748502, now seen corresponding path program 37 times [2022-03-15 13:42:34,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:34,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573408524] [2022-03-15 13:42:34,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:34,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:34,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:34,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573408524] [2022-03-15 13:42:34,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573408524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:34,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:34,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:34,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038898351] [2022-03-15 13:42:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:34,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:34,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:34,883 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) [2022-03-15 13:42:35,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:35,471 INFO L93 Difference]: Finished difference Result 20879 states and 59701 transitions. [2022-03-15 13:42:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:35,471 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 [2022-03-15 13:42:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:35,512 INFO L225 Difference]: With dead ends: 20879 [2022-03-15 13:42:35,512 INFO L226 Difference]: Without dead ends: 20879 [2022-03-15 13:42:35,512 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 [2022-03-15 13:42:35,513 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 [2022-03-15 13:42:35,513 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] [2022-03-15 13:42:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20879 states. [2022-03-15 13:42:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20879 to 8624. [2022-03-15 13:42:35,714 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) [2022-03-15 13:42:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-03-15 13:42:35,731 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-03-15 13:42:35,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:35,732 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-03-15 13:42:35,732 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) [2022-03-15 13:42:35,732 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-03-15 13:42:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:35,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:35,744 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] [2022-03-15 13:42:35,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 13:42:35,744 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:35,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1852273058, now seen corresponding path program 38 times [2022-03-15 13:42:35,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:35,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175677260] [2022-03-15 13:42:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:35,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:35,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:35,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175677260] [2022-03-15 13:42:35,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175677260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:35,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:35,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:35,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481591752] [2022-03-15 13:42:35,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:35,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:35,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:35,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:35,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:35,968 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) [2022-03-15 13:42:36,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:36,546 INFO L93 Difference]: Finished difference Result 19179 states and 54611 transitions. [2022-03-15 13:42:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:36,546 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 [2022-03-15 13:42:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:36,584 INFO L225 Difference]: With dead ends: 19179 [2022-03-15 13:42:36,584 INFO L226 Difference]: Without dead ends: 19179 [2022-03-15 13:42:36,584 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 [2022-03-15 13:42:36,584 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1257 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 13:42:36,584 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] [2022-03-15 13:42:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2022-03-15 13:42:36,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 8628. [2022-03-15 13:42:36,767 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) [2022-03-15 13:42:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-03-15 13:42:36,784 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-03-15 13:42:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:36,784 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-03-15 13:42:36,784 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) [2022-03-15 13:42:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-03-15 13:42:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:36,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:36,796 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] [2022-03-15 13:42:36,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 13:42:36,797 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:36,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:36,797 INFO L85 PathProgramCache]: Analyzing trace with hash -892771370, now seen corresponding path program 39 times [2022-03-15 13:42:36,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:36,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567043958] [2022-03-15 13:42:36,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:36,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:37,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:37,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567043958] [2022-03-15 13:42:37,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567043958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:37,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:37,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:37,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246537437] [2022-03-15 13:42:37,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:37,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:37,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:37,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:37,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:37,006 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) [2022-03-15 13:42:37,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:37,499 INFO L93 Difference]: Finished difference Result 18919 states and 53915 transitions. [2022-03-15 13:42:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:37,499 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 [2022-03-15 13:42:37,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:37,535 INFO L225 Difference]: With dead ends: 18919 [2022-03-15 13:42:37,536 INFO L226 Difference]: Without dead ends: 18919 [2022-03-15 13:42:37,536 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 [2022-03-15 13:42:37,536 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 [2022-03-15 13:42:37,536 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] [2022-03-15 13:42:37,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18919 states. [2022-03-15 13:42:37,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18919 to 8584. [2022-03-15 13:42:37,729 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) [2022-03-15 13:42:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-03-15 13:42:37,745 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-03-15 13:42:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:37,746 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-03-15 13:42:37,746 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) [2022-03-15 13:42:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-03-15 13:42:37,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:37,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:37,757 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] [2022-03-15 13:42:37,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 13:42:37,758 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:37,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:37,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1691161464, now seen corresponding path program 40 times [2022-03-15 13:42:37,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:37,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462403409] [2022-03-15 13:42:37,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:37,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:38,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:38,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462403409] [2022-03-15 13:42:38,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462403409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:38,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:38,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:38,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683977125] [2022-03-15 13:42:38,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:38,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:38,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:38,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:38,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:38,006 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) [2022-03-15 13:42:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:38,623 INFO L93 Difference]: Finished difference Result 21375 states and 61229 transitions. [2022-03-15 13:42:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:38,623 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 [2022-03-15 13:42:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:38,665 INFO L225 Difference]: With dead ends: 21375 [2022-03-15 13:42:38,665 INFO L226 Difference]: Without dead ends: 21375 [2022-03-15 13:42:38,666 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 [2022-03-15 13:42:38,666 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:38,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 3453 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:42:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21375 states. [2022-03-15 13:42:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21375 to 8592. [2022-03-15 13:42:38,895 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) [2022-03-15 13:42:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-15 13:42:38,913 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-15 13:42:38,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:38,913 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-15 13:42:38,914 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) [2022-03-15 13:42:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-15 13:42:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:38,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:38,926 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] [2022-03-15 13:42:38,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 13:42:38,926 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:38,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:38,927 INFO L85 PathProgramCache]: Analyzing trace with hash 636784272, now seen corresponding path program 41 times [2022-03-15 13:42:38,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:38,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236316115] [2022-03-15 13:42:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:38,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:39,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:39,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236316115] [2022-03-15 13:42:39,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236316115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:39,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:39,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:39,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726801634] [2022-03-15 13:42:39,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:39,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:39,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:39,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:39,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:39,154 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) [2022-03-15 13:42:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:39,659 INFO L93 Difference]: Finished difference Result 20131 states and 57557 transitions. [2022-03-15 13:42:39,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:39,660 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 [2022-03-15 13:42:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:39,701 INFO L225 Difference]: With dead ends: 20131 [2022-03-15 13:42:39,701 INFO L226 Difference]: Without dead ends: 20131 [2022-03-15 13:42:39,701 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 [2022-03-15 13:42:39,701 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 [2022-03-15 13:42:39,702 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] [2022-03-15 13:42:39,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20131 states. [2022-03-15 13:42:39,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 8596. [2022-03-15 13:42:39,904 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) [2022-03-15 13:42:39,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-15 13:42:39,921 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-15 13:42:39,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:39,921 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-15 13:42:39,921 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) [2022-03-15 13:42:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-15 13:42:39,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:39,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:39,933 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] [2022-03-15 13:42:39,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 13:42:39,933 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:39,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:39,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1596285960, now seen corresponding path program 42 times [2022-03-15 13:42:39,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:39,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263895123] [2022-03-15 13:42:39,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:39,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:40,160 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:40,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:40,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263895123] [2022-03-15 13:42:40,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263895123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:40,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:40,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:40,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579879981] [2022-03-15 13:42:40,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:40,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:40,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:40,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:40,162 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) [2022-03-15 13:42:40,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:40,704 INFO L93 Difference]: Finished difference Result 19871 states and 56861 transitions. [2022-03-15 13:42:40,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:40,704 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 [2022-03-15 13:42:40,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:40,742 INFO L225 Difference]: With dead ends: 19871 [2022-03-15 13:42:40,742 INFO L226 Difference]: Without dead ends: 19871 [2022-03-15 13:42:40,742 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 [2022-03-15 13:42:40,743 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 [2022-03-15 13:42:40,743 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] [2022-03-15 13:42:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19871 states. [2022-03-15 13:42:40,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19871 to 8588. [2022-03-15 13:42:40,968 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) [2022-03-15 13:42:40,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-03-15 13:42:40,986 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-03-15 13:42:40,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:40,986 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-03-15 13:42:40,986 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) [2022-03-15 13:42:40,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-03-15 13:42:40,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:40,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:40,997 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] [2022-03-15 13:42:40,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 13:42:40,998 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:40,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1518047040, now seen corresponding path program 43 times [2022-03-15 13:42:40,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:40,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46582170] [2022-03-15 13:42:40,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:40,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:41,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:41,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46582170] [2022-03-15 13:42:41,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46582170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:41,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:41,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:41,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126225971] [2022-03-15 13:42:41,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:41,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:41,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:41,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:41,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:41,225 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) [2022-03-15 13:42:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:41,760 INFO L93 Difference]: Finished difference Result 19639 states and 56032 transitions. [2022-03-15 13:42:41,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:41,761 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 [2022-03-15 13:42:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:41,798 INFO L225 Difference]: With dead ends: 19639 [2022-03-15 13:42:41,798 INFO L226 Difference]: Without dead ends: 19639 [2022-03-15 13:42:41,799 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 [2022-03-15 13:42:41,799 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 [2022-03-15 13:42:41,799 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] [2022-03-15 13:42:41,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19639 states. [2022-03-15 13:42:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19639 to 8596. [2022-03-15 13:42:41,992 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) [2022-03-15 13:42:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-15 13:42:42,010 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-15 13:42:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:42,010 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-15 13:42:42,010 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) [2022-03-15 13:42:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-15 13:42:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:42,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:42,022 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] [2022-03-15 13:42:42,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 13:42:42,022 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:42,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1817418568, now seen corresponding path program 44 times [2022-03-15 13:42:42,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:42,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781351267] [2022-03-15 13:42:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:42,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:42,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:42,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781351267] [2022-03-15 13:42:42,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781351267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:42,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:42,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:42,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495041187] [2022-03-15 13:42:42,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:42,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:42,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:42,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:42,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:42,278 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) [2022-03-15 13:42:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:42,791 INFO L93 Difference]: Finished difference Result 19463 states and 55579 transitions. [2022-03-15 13:42:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:42,792 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 [2022-03-15 13:42:42,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:42,830 INFO L225 Difference]: With dead ends: 19463 [2022-03-15 13:42:42,830 INFO L226 Difference]: Without dead ends: 19463 [2022-03-15 13:42:42,831 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 [2022-03-15 13:42:42,831 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 [2022-03-15 13:42:42,831 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] [2022-03-15 13:42:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19463 states. [2022-03-15 13:42:43,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19463 to 8592. [2022-03-15 13:42:43,070 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) [2022-03-15 13:42:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-15 13:42:43,086 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-15 13:42:43,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:43,086 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-15 13:42:43,086 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) [2022-03-15 13:42:43,086 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-15 13:42:43,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:43,098 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:43,098 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] [2022-03-15 13:42:43,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 13:42:43,098 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:43,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:43,099 INFO L85 PathProgramCache]: Analyzing trace with hash 781772970, now seen corresponding path program 45 times [2022-03-15 13:42:43,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:43,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672218646] [2022-03-15 13:42:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:43,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:43,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:43,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672218646] [2022-03-15 13:42:43,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672218646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:43,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:43,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:43,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345949621] [2022-03-15 13:42:43,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:43,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:43,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:43,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:43,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:43,338 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) [2022-03-15 13:42:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:44,006 INFO L93 Difference]: Finished difference Result 20599 states and 58827 transitions. [2022-03-15 13:42:44,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:44,007 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 [2022-03-15 13:42:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:44,049 INFO L225 Difference]: With dead ends: 20599 [2022-03-15 13:42:44,049 INFO L226 Difference]: Without dead ends: 20599 [2022-03-15 13:42:44,049 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 [2022-03-15 13:42:44,050 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 [2022-03-15 13:42:44,050 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] [2022-03-15 13:42:44,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20599 states. [2022-03-15 13:42:44,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20599 to 8548. [2022-03-15 13:42:44,243 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) [2022-03-15 13:42:44,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 24089 transitions. [2022-03-15 13:42:44,259 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 24089 transitions. Word has length 223 [2022-03-15 13:42:44,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:44,260 INFO L470 AbstractCegarLoop]: Abstraction has 8548 states and 24089 transitions. [2022-03-15 13:42:44,260 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) [2022-03-15 13:42:44,260 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 24089 transitions. [2022-03-15 13:42:44,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:44,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:44,271 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] [2022-03-15 13:42:44,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 13:42:44,272 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:44,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1550444754, now seen corresponding path program 46 times [2022-03-15 13:42:44,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:44,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437093132] [2022-03-15 13:42:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:44,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:44,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:44,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437093132] [2022-03-15 13:42:44,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437093132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:44,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:44,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:44,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305104185] [2022-03-15 13:42:44,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:44,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:44,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:44,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:44,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:44,500 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) [2022-03-15 13:42:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:45,142 INFO L93 Difference]: Finished difference Result 22432 states and 64293 transitions. [2022-03-15 13:42:45,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:45,142 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 [2022-03-15 13:42:45,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:45,184 INFO L225 Difference]: With dead ends: 22432 [2022-03-15 13:42:45,185 INFO L226 Difference]: Without dead ends: 22432 [2022-03-15 13:42:45,185 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 [2022-03-15 13:42:45,185 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:45,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 3817 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:42:45,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22432 states. [2022-03-15 13:42:45,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22432 to 8592. [2022-03-15 13:42:45,433 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) [2022-03-15 13:42:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-15 13:42:45,451 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-15 13:42:45,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:45,451 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-15 13:42:45,451 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) [2022-03-15 13:42:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-15 13:42:45,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:45,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:45,463 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] [2022-03-15 13:42:45,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 13:42:45,463 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:45,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:45,464 INFO L85 PathProgramCache]: Analyzing trace with hash -416576806, now seen corresponding path program 47 times [2022-03-15 13:42:45,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:45,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94909561] [2022-03-15 13:42:45,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:45,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:45,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:45,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94909561] [2022-03-15 13:42:45,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94909561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:45,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:45,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:45,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571883425] [2022-03-15 13:42:45,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:45,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:45,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:45,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:45,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:45,680 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) [2022-03-15 13:42:46,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:46,208 INFO L93 Difference]: Finished difference Result 21188 states and 60621 transitions. [2022-03-15 13:42:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:46,208 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 [2022-03-15 13:42:46,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:46,251 INFO L225 Difference]: With dead ends: 21188 [2022-03-15 13:42:46,251 INFO L226 Difference]: Without dead ends: 21188 [2022-03-15 13:42:46,251 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 [2022-03-15 13:42:46,255 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 [2022-03-15 13:42:46,255 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] [2022-03-15 13:42:46,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21188 states. [2022-03-15 13:42:46,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21188 to 8596. [2022-03-15 13:42:46,459 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) [2022-03-15 13:42:46,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-15 13:42:46,476 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-15 13:42:46,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:46,476 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-15 13:42:46,476 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) [2022-03-15 13:42:46,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-15 13:42:46,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:46,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:46,488 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] [2022-03-15 13:42:46,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 13:42:46,488 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash 542924882, now seen corresponding path program 48 times [2022-03-15 13:42:46,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:46,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293192937] [2022-03-15 13:42:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:46,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:46,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:46,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293192937] [2022-03-15 13:42:46,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293192937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:46,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:46,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:46,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149306157] [2022-03-15 13:42:46,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:46,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:46,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:46,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:46,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:46,724 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) [2022-03-15 13:42:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:47,245 INFO L93 Difference]: Finished difference Result 20928 states and 59925 transitions. [2022-03-15 13:42:47,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:47,245 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 [2022-03-15 13:42:47,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:47,286 INFO L225 Difference]: With dead ends: 20928 [2022-03-15 13:42:47,287 INFO L226 Difference]: Without dead ends: 20928 [2022-03-15 13:42:47,287 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 [2022-03-15 13:42:47,287 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:47,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 3010 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:42:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20928 states. [2022-03-15 13:42:47,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20928 to 8588. [2022-03-15 13:42:47,557 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) [2022-03-15 13:42:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-03-15 13:42:47,576 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-03-15 13:42:47,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:47,577 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-03-15 13:42:47,577 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) [2022-03-15 13:42:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-03-15 13:42:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:47,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:47,589 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] [2022-03-15 13:42:47,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 13:42:47,589 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:47,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:47,589 INFO L85 PathProgramCache]: Analyzing trace with hash 464685962, now seen corresponding path program 49 times [2022-03-15 13:42:47,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:47,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341545926] [2022-03-15 13:42:47,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:47,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:47,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:47,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341545926] [2022-03-15 13:42:47,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341545926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:47,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:47,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:47,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956667773] [2022-03-15 13:42:47,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:47,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:47,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:47,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:47,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:47,864 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) [2022-03-15 13:42:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:48,432 INFO L93 Difference]: Finished difference Result 21596 states and 61899 transitions. [2022-03-15 13:42:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:48,432 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 [2022-03-15 13:42:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:48,475 INFO L225 Difference]: With dead ends: 21596 [2022-03-15 13:42:48,476 INFO L226 Difference]: Without dead ends: 21596 [2022-03-15 13:42:48,476 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 [2022-03-15 13:42:48,478 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:48,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1285 Valid, 3157 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:42:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21596 states. [2022-03-15 13:42:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21596 to 8596. [2022-03-15 13:42:48,701 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) [2022-03-15 13:42:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-03-15 13:42:48,718 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-03-15 13:42:48,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:48,718 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-03-15 13:42:48,718 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) [2022-03-15 13:42:48,719 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-03-15 13:42:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:48,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:48,730 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] [2022-03-15 13:42:48,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 13:42:48,731 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:48,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:48,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1424187650, now seen corresponding path program 50 times [2022-03-15 13:42:48,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:48,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935053947] [2022-03-15 13:42:48,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:48,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:48,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:48,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935053947] [2022-03-15 13:42:48,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935053947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:48,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:48,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:48,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98383540] [2022-03-15 13:42:48,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:48,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:48,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:48,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:48,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:48,982 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) [2022-03-15 13:42:49,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:49,569 INFO L93 Difference]: Finished difference Result 21420 states and 61446 transitions. [2022-03-15 13:42:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:49,570 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 [2022-03-15 13:42:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:49,613 INFO L225 Difference]: With dead ends: 21420 [2022-03-15 13:42:49,613 INFO L226 Difference]: Without dead ends: 21420 [2022-03-15 13:42:49,614 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 [2022-03-15 13:42:49,614 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:49,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 3638 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:42:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21420 states. [2022-03-15 13:42:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21420 to 8592. [2022-03-15 13:42:49,821 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) [2022-03-15 13:42:49,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-03-15 13:42:49,838 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-03-15 13:42:49,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:49,838 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-03-15 13:42:49,838 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) [2022-03-15 13:42:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-03-15 13:42:49,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:49,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:49,850 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] [2022-03-15 13:42:49,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 13:42:49,850 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:49,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:49,850 INFO L85 PathProgramCache]: Analyzing trace with hash -271588108, now seen corresponding path program 51 times [2022-03-15 13:42:49,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:49,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718473133] [2022-03-15 13:42:49,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:49,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:50,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:50,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718473133] [2022-03-15 13:42:50,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718473133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:50,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:50,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:50,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681244145] [2022-03-15 13:42:50,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:50,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:50,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:50,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:50,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:50,103 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) [2022-03-15 13:42:50,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:50,751 INFO L93 Difference]: Finished difference Result 22604 states and 64826 transitions. [2022-03-15 13:42:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:50,752 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 [2022-03-15 13:42:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:50,795 INFO L225 Difference]: With dead ends: 22604 [2022-03-15 13:42:50,796 INFO L226 Difference]: Without dead ends: 22604 [2022-03-15 13:42:50,796 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 [2022-03-15 13:42:50,796 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 [2022-03-15 13:42:50,796 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] [2022-03-15 13:42:50,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22604 states. [2022-03-15 13:42:51,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22604 to 8584. [2022-03-15 13:42:51,011 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) [2022-03-15 13:42:51,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-03-15 13:42:51,029 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-03-15 13:42:51,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:51,029 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-03-15 13:42:51,029 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) [2022-03-15 13:42:51,029 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-03-15 13:42:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:51,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:51,041 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] [2022-03-15 13:42:51,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 13:42:51,042 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:51,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:51,042 INFO L85 PathProgramCache]: Analyzing trace with hash -485485282, now seen corresponding path program 52 times [2022-03-15 13:42:51,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:51,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466175816] [2022-03-15 13:42:51,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:51,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:51,261 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:51,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:51,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466175816] [2022-03-15 13:42:51,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466175816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:51,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:51,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:51,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510626925] [2022-03-15 13:42:51,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:51,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:51,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:51,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:51,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:51,262 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) [2022-03-15 13:42:51,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:51,852 INFO L93 Difference]: Finished difference Result 20692 states and 59085 transitions. [2022-03-15 13:42:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:51,853 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 [2022-03-15 13:42:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:51,895 INFO L225 Difference]: With dead ends: 20692 [2022-03-15 13:42:51,895 INFO L226 Difference]: Without dead ends: 20692 [2022-03-15 13:42:51,895 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 [2022-03-15 13:42:51,895 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1382 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-03-15 13:42:51,896 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] [2022-03-15 13:42:51,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-03-15 13:42:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8628. [2022-03-15 13:42:52,090 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) [2022-03-15 13:42:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-03-15 13:42:52,107 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-03-15 13:42:52,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:52,107 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-03-15 13:42:52,107 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) [2022-03-15 13:42:52,108 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-03-15 13:42:52,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:52,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:52,119 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] [2022-03-15 13:42:52,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 13:42:52,120 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash 474016406, now seen corresponding path program 53 times [2022-03-15 13:42:52,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:52,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824564809] [2022-03-15 13:42:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:52,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:52,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:52,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824564809] [2022-03-15 13:42:52,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824564809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:52,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:52,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:52,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590562339] [2022-03-15 13:42:52,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:52,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:52,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:52,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:52,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:52,339 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) [2022-03-15 13:42:52,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:52,918 INFO L93 Difference]: Finished difference Result 20516 states and 58632 transitions. [2022-03-15 13:42:52,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:52,919 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 [2022-03-15 13:42:52,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:52,962 INFO L225 Difference]: With dead ends: 20516 [2022-03-15 13:42:52,962 INFO L226 Difference]: Without dead ends: 20516 [2022-03-15 13:42:52,965 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 [2022-03-15 13:42:52,966 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 [2022-03-15 13:42:52,966 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] [2022-03-15 13:42:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20516 states. [2022-03-15 13:42:53,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20516 to 8624. [2022-03-15 13:42:53,228 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) [2022-03-15 13:42:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-03-15 13:42:53,244 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-03-15 13:42:53,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:53,244 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-03-15 13:42:53,244 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) [2022-03-15 13:42:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-03-15 13:42:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:53,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:53,255 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] [2022-03-15 13:42:53,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 13:42:53,255 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:53,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:53,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1221759352, now seen corresponding path program 54 times [2022-03-15 13:42:53,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:53,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852986077] [2022-03-15 13:42:53,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:53,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:53,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:53,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852986077] [2022-03-15 13:42:53,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852986077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:53,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:53,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:53,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314817607] [2022-03-15 13:42:53,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:53,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:53,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:53,467 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) [2022-03-15 13:42:54,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:54,130 INFO L93 Difference]: Finished difference Result 22156 states and 63426 transitions. [2022-03-15 13:42:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:54,131 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 [2022-03-15 13:42:54,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:54,175 INFO L225 Difference]: With dead ends: 22156 [2022-03-15 13:42:54,175 INFO L226 Difference]: Without dead ends: 22156 [2022-03-15 13:42:54,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:42:54,176 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 994 mSDsluCounter, 3579 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:54,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 3929 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:42:54,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22156 states. [2022-03-15 13:42:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22156 to 8620. [2022-03-15 13:42:54,382 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) [2022-03-15 13:42:54,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-03-15 13:42:54,399 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-03-15 13:42:54,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:54,399 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-03-15 13:42:54,399 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) [2022-03-15 13:42:54,399 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-03-15 13:42:54,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:54,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:54,412 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] [2022-03-15 13:42:54,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 13:42:54,412 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1777640430, now seen corresponding path program 55 times [2022-03-15 13:42:54,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:54,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437599785] [2022-03-15 13:42:54,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:54,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:54,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:54,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437599785] [2022-03-15 13:42:54,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437599785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:54,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:54,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:54,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674004924] [2022-03-15 13:42:54,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:54,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:54,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:54,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:54,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:54,640 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) [2022-03-15 13:42:55,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:55,370 INFO L93 Difference]: Finished difference Result 25218 states and 71830 transitions. [2022-03-15 13:42:55,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 13:42:55,370 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 [2022-03-15 13:42:55,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:55,427 INFO L225 Difference]: With dead ends: 25218 [2022-03-15 13:42:55,427 INFO L226 Difference]: Without dead ends: 25218 [2022-03-15 13:42:55,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:42:55,428 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1495 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:42:55,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1495 Valid, 3869 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:42:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25218 states. [2022-03-15 13:42:55,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25218 to 8224. [2022-03-15 13:42:55,662 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) [2022-03-15 13:42:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8224 states to 8224 states and 23198 transitions. [2022-03-15 13:42:55,679 INFO L78 Accepts]: Start accepts. Automaton has 8224 states and 23198 transitions. Word has length 223 [2022-03-15 13:42:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:55,679 INFO L470 AbstractCegarLoop]: Abstraction has 8224 states and 23198 transitions. [2022-03-15 13:42:55,679 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) [2022-03-15 13:42:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 8224 states and 23198 transitions. [2022-03-15 13:42:55,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:55,691 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:55,691 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] [2022-03-15 13:42:55,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 13:42:55,691 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:55,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:55,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1997484100, now seen corresponding path program 56 times [2022-03-15 13:42:55,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:55,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138919139] [2022-03-15 13:42:55,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:55,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:55,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:55,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138919139] [2022-03-15 13:42:55,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138919139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:55,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:55,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:55,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156726023] [2022-03-15 13:42:55,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:55,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:55,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:55,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:55,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:55,928 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) [2022-03-15 13:42:56,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:56,641 INFO L93 Difference]: Finished difference Result 21842 states and 62640 transitions. [2022-03-15 13:42:56,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 13:42:56,641 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 [2022-03-15 13:42:56,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:56,686 INFO L225 Difference]: With dead ends: 21842 [2022-03-15 13:42:56,686 INFO L226 Difference]: Without dead ends: 21842 [2022-03-15 13:42:56,686 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 [2022-03-15 13:42:56,687 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 [2022-03-15 13:42:56,687 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] [2022-03-15 13:42:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21842 states. [2022-03-15 13:42:56,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21842 to 8300. [2022-03-15 13:42:56,901 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) [2022-03-15 13:42:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8300 states to 8300 states and 23443 transitions. [2022-03-15 13:42:56,917 INFO L78 Accepts]: Start accepts. Automaton has 8300 states and 23443 transitions. Word has length 223 [2022-03-15 13:42:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:56,917 INFO L470 AbstractCegarLoop]: Abstraction has 8300 states and 23443 transitions. [2022-03-15 13:42:56,917 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) [2022-03-15 13:42:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 8300 states and 23443 transitions. [2022-03-15 13:42:56,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:56,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:56,928 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] [2022-03-15 13:42:56,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 13:42:56,928 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:56,929 INFO L85 PathProgramCache]: Analyzing trace with hash 186521022, now seen corresponding path program 57 times [2022-03-15 13:42:56,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:56,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743781807] [2022-03-15 13:42:56,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:57,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:57,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743781807] [2022-03-15 13:42:57,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743781807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:57,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:57,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:57,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238517182] [2022-03-15 13:42:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:57,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:57,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:57,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:57,146 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) [2022-03-15 13:42:57,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:57,691 INFO L93 Difference]: Finished difference Result 17140 states and 49239 transitions. [2022-03-15 13:42:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:57,691 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 [2022-03-15 13:42:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:57,724 INFO L225 Difference]: With dead ends: 17140 [2022-03-15 13:42:57,725 INFO L226 Difference]: Without dead ends: 17140 [2022-03-15 13:42:57,725 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 [2022-03-15 13:42:57,725 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1109 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 13:42:57,725 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] [2022-03-15 13:42:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17140 states. [2022-03-15 13:42:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17140 to 8308. [2022-03-15 13:42:57,901 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) [2022-03-15 13:42:57,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8308 states to 8308 states and 23477 transitions. [2022-03-15 13:42:57,918 INFO L78 Accepts]: Start accepts. Automaton has 8308 states and 23477 transitions. Word has length 223 [2022-03-15 13:42:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:57,918 INFO L470 AbstractCegarLoop]: Abstraction has 8308 states and 23477 transitions. [2022-03-15 13:42:57,918 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) [2022-03-15 13:42:57,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8308 states and 23477 transitions. [2022-03-15 13:42:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:57,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:57,930 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] [2022-03-15 13:42:57,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-15 13:42:57,930 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:57,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:57,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1146022710, now seen corresponding path program 58 times [2022-03-15 13:42:57,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:57,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809351771] [2022-03-15 13:42:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:58,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:58,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809351771] [2022-03-15 13:42:58,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809351771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:58,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:58,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:58,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114029891] [2022-03-15 13:42:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:58,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:58,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:58,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:58,140 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) [2022-03-15 13:42:58,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:58,682 INFO L93 Difference]: Finished difference Result 17015 states and 48924 transitions. [2022-03-15 13:42:58,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:42:58,683 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 [2022-03-15 13:42:58,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:58,717 INFO L225 Difference]: With dead ends: 17015 [2022-03-15 13:42:58,717 INFO L226 Difference]: Without dead ends: 17015 [2022-03-15 13:42:58,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 13:42:58,718 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 [2022-03-15 13:42:58,718 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] [2022-03-15 13:42:58,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2022-03-15 13:42:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 8304. [2022-03-15 13:42:58,950 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) [2022-03-15 13:42:58,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8304 states to 8304 states and 23458 transitions. [2022-03-15 13:42:58,966 INFO L78 Accepts]: Start accepts. Automaton has 8304 states and 23458 transitions. Word has length 223 [2022-03-15 13:42:58,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:42:58,966 INFO L470 AbstractCegarLoop]: Abstraction has 8304 states and 23458 transitions. [2022-03-15 13:42:58,966 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) [2022-03-15 13:42:58,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8304 states and 23458 transitions. [2022-03-15 13:42:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:42:58,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:42:58,978 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] [2022-03-15 13:42:58,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-15 13:42:58,978 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:42:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:42:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash -549753048, now seen corresponding path program 59 times [2022-03-15 13:42:58,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:42:58,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208780950] [2022-03-15 13:42:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:42:58,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:42:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:42:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:42:59,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:42:59,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208780950] [2022-03-15 13:42:59,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208780950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:42:59,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:42:59,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:42:59,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100610221] [2022-03-15 13:42:59,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:42:59,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:42:59,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:42:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:42:59,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:42:59,193 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) [2022-03-15 13:42:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:42:59,854 INFO L93 Difference]: Finished difference Result 18643 states and 53681 transitions. [2022-03-15 13:42:59,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:42:59,855 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 [2022-03-15 13:42:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:42:59,892 INFO L225 Difference]: With dead ends: 18643 [2022-03-15 13:42:59,892 INFO L226 Difference]: Without dead ends: 18643 [2022-03-15 13:42:59,893 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 [2022-03-15 13:42:59,893 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 [2022-03-15 13:42:59,893 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] [2022-03-15 13:42:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18643 states. [2022-03-15 13:43:00,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18643 to 8264. [2022-03-15 13:43:00,080 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) [2022-03-15 13:43:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 23308 transitions. [2022-03-15 13:43:00,097 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 23308 transitions. Word has length 223 [2022-03-15 13:43:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:00,097 INFO L470 AbstractCegarLoop]: Abstraction has 8264 states and 23308 transitions. [2022-03-15 13:43:00,097 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) [2022-03-15 13:43:00,097 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 23308 transitions. [2022-03-15 13:43:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:00,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:00,109 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] [2022-03-15 13:43:00,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-15 13:43:00,109 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:00,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:00,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1356097652, now seen corresponding path program 60 times [2022-03-15 13:43:00,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:00,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940332537] [2022-03-15 13:43:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:00,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:00,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:00,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940332537] [2022-03-15 13:43:00,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940332537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:00,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:00,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:00,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660113126] [2022-03-15 13:43:00,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:00,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:00,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:00,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:00,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:00,348 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) [2022-03-15 13:43:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:00,933 INFO L93 Difference]: Finished difference Result 17336 states and 49761 transitions. [2022-03-15 13:43:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:43:00,933 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 [2022-03-15 13:43:00,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:00,966 INFO L225 Difference]: With dead ends: 17336 [2022-03-15 13:43:00,966 INFO L226 Difference]: Without dead ends: 17336 [2022-03-15 13:43:00,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 13:43:00,967 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:43:00,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 3283 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:43:00,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17336 states. [2022-03-15 13:43:01,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17336 to 8272. [2022-03-15 13:43:01,158 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) [2022-03-15 13:43:01,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-03-15 13:43:01,174 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-03-15 13:43:01,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:01,175 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-03-15 13:43:01,175 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) [2022-03-15 13:43:01,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-03-15 13:43:01,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:01,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:01,187 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] [2022-03-15 13:43:01,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-15 13:43:01,187 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:01,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:01,187 INFO L85 PathProgramCache]: Analyzing trace with hash 971848084, now seen corresponding path program 61 times [2022-03-15 13:43:01,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:01,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824103273] [2022-03-15 13:43:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:01,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:01,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824103273] [2022-03-15 13:43:01,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824103273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:01,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:01,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:01,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581563885] [2022-03-15 13:43:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:01,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:01,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:01,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:01,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:01,411 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) [2022-03-15 13:43:01,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:01,979 INFO L93 Difference]: Finished difference Result 16036 states and 45923 transitions. [2022-03-15 13:43:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:01,979 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 [2022-03-15 13:43:01,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:02,009 INFO L225 Difference]: With dead ends: 16036 [2022-03-15 13:43:02,009 INFO L226 Difference]: Without dead ends: 16036 [2022-03-15 13:43:02,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 13:43:02,009 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:43:02,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 3234 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:43:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-03-15 13:43:02,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 8276. [2022-03-15 13:43:02,166 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) [2022-03-15 13:43:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-03-15 13:43:02,183 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-03-15 13:43:02,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:02,183 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-03-15 13:43:02,183 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) [2022-03-15 13:43:02,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-03-15 13:43:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:02,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:02,194 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] [2022-03-15 13:43:02,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-15 13:43:02,195 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:02,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:02,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1931349772, now seen corresponding path program 62 times [2022-03-15 13:43:02,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:02,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192523310] [2022-03-15 13:43:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:02,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:02,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:02,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192523310] [2022-03-15 13:43:02,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192523310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:02,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:02,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:02,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240385792] [2022-03-15 13:43:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:02,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:02,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:02,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:02,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:02,414 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) [2022-03-15 13:43:02,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:02,894 INFO L93 Difference]: Finished difference Result 15776 states and 45227 transitions. [2022-03-15 13:43:02,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:02,894 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 [2022-03-15 13:43:02,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:02,925 INFO L225 Difference]: With dead ends: 15776 [2022-03-15 13:43:02,925 INFO L226 Difference]: Without dead ends: 15776 [2022-03-15 13:43:02,925 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 [2022-03-15 13:43:02,926 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 [2022-03-15 13:43:02,926 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] [2022-03-15 13:43:02,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2022-03-15 13:43:03,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 8268. [2022-03-15 13:43:03,099 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) [2022-03-15 13:43:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23319 transitions. [2022-03-15 13:43:03,115 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23319 transitions. Word has length 223 [2022-03-15 13:43:03,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:03,115 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23319 transitions. [2022-03-15 13:43:03,115 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) [2022-03-15 13:43:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23319 transitions. [2022-03-15 13:43:03,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:03,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:03,127 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] [2022-03-15 13:43:03,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-15 13:43:03,127 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:03,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1853110852, now seen corresponding path program 63 times [2022-03-15 13:43:03,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:03,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269751099] [2022-03-15 13:43:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:03,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:03,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:03,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269751099] [2022-03-15 13:43:03,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269751099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:03,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:03,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:03,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894342598] [2022-03-15 13:43:03,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:03,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:03,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:03,362 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) [2022-03-15 13:43:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:03,924 INFO L93 Difference]: Finished difference Result 16444 states and 47201 transitions. [2022-03-15 13:43:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:03,925 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 [2022-03-15 13:43:03,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:03,959 INFO L225 Difference]: With dead ends: 16444 [2022-03-15 13:43:03,959 INFO L226 Difference]: Without dead ends: 16444 [2022-03-15 13:43:03,960 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 [2022-03-15 13:43:03,960 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 [2022-03-15 13:43:03,960 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] [2022-03-15 13:43:03,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16444 states. [2022-03-15 13:43:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16444 to 8276. [2022-03-15 13:43:04,139 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) [2022-03-15 13:43:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-03-15 13:43:04,156 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-03-15 13:43:04,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:04,156 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-03-15 13:43:04,156 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) [2022-03-15 13:43:04,157 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-03-15 13:43:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:04,168 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:04,168 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] [2022-03-15 13:43:04,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 13:43:04,168 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1482354756, now seen corresponding path program 64 times [2022-03-15 13:43:04,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:04,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403918879] [2022-03-15 13:43:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:04,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:04,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403918879] [2022-03-15 13:43:04,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403918879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:04,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:04,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:04,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931318584] [2022-03-15 13:43:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:04,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:04,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:04,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:04,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:04,394 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) [2022-03-15 13:43:04,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:04,975 INFO L93 Difference]: Finished difference Result 16268 states and 46748 transitions. [2022-03-15 13:43:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:04,976 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 [2022-03-15 13:43:04,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:05,013 INFO L225 Difference]: With dead ends: 16268 [2022-03-15 13:43:05,013 INFO L226 Difference]: Without dead ends: 16268 [2022-03-15 13:43:05,013 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 [2022-03-15 13:43:05,013 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:43:05,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 3529 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:43:05,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16268 states. [2022-03-15 13:43:05,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16268 to 8272. [2022-03-15 13:43:05,184 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) [2022-03-15 13:43:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-03-15 13:43:05,201 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-03-15 13:43:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:05,201 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-03-15 13:43:05,201 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) [2022-03-15 13:43:05,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-03-15 13:43:05,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:05,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:05,213 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] [2022-03-15 13:43:05,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 13:43:05,213 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:05,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:05,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1116836782, now seen corresponding path program 65 times [2022-03-15 13:43:05,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:05,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467930835] [2022-03-15 13:43:05,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:05,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:05,437 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:05,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:05,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467930835] [2022-03-15 13:43:05,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467930835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:05,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:05,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:05,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477874763] [2022-03-15 13:43:05,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:05,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:05,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:05,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:05,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:05,439 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) [2022-03-15 13:43:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:06,068 INFO L93 Difference]: Finished difference Result 17452 states and 50128 transitions. [2022-03-15 13:43:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:43:06,068 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 [2022-03-15 13:43:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:06,103 INFO L225 Difference]: With dead ends: 17452 [2022-03-15 13:43:06,104 INFO L226 Difference]: Without dead ends: 17452 [2022-03-15 13:43:06,104 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 [2022-03-15 13:43:06,104 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:43:06,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 3553 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:43:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17452 states. [2022-03-15 13:43:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17452 to 8228. [2022-03-15 13:43:06,284 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) [2022-03-15 13:43:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 23209 transitions. [2022-03-15 13:43:06,301 INFO L78 Accepts]: Start accepts. Automaton has 8228 states and 23209 transitions. Word has length 223 [2022-03-15 13:43:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:06,301 INFO L470 AbstractCegarLoop]: Abstraction has 8228 states and 23209 transitions. [2022-03-15 13:43:06,301 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) [2022-03-15 13:43:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8228 states and 23209 transitions. [2022-03-15 13:43:06,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:06,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:06,313 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] [2022-03-15 13:43:06,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 13:43:06,313 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:06,314 INFO L85 PathProgramCache]: Analyzing trace with hash -70816108, now seen corresponding path program 66 times [2022-03-15 13:43:06,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:06,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461114762] [2022-03-15 13:43:06,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:06,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:06,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:06,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461114762] [2022-03-15 13:43:06,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461114762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:06,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:06,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:06,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340168123] [2022-03-15 13:43:06,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:06,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:06,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:06,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:06,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:06,525 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) [2022-03-15 13:43:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:07,282 INFO L93 Difference]: Finished difference Result 20532 states and 58718 transitions. [2022-03-15 13:43:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 13:43:07,282 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 [2022-03-15 13:43:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:07,325 INFO L225 Difference]: With dead ends: 20532 [2022-03-15 13:43:07,325 INFO L226 Difference]: Without dead ends: 20532 [2022-03-15 13:43:07,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 13:43:07,326 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1193 mSDsluCounter, 3811 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:43:07,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 4157 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:43:07,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20532 states. [2022-03-15 13:43:07,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20532 to 8268. [2022-03-15 13:43:07,522 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) [2022-03-15 13:43:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23359 transitions. [2022-03-15 13:43:07,608 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23359 transitions. Word has length 223 [2022-03-15 13:43:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:07,609 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23359 transitions. [2022-03-15 13:43:07,609 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) [2022-03-15 13:43:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23359 transitions. [2022-03-15 13:43:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:07,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:07,620 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] [2022-03-15 13:43:07,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-15 13:43:07,620 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:07,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2113189014, now seen corresponding path program 67 times [2022-03-15 13:43:07,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:07,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582657913] [2022-03-15 13:43:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:07,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:07,812 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:07,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:07,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582657913] [2022-03-15 13:43:07,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582657913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:07,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:07,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:07,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465424629] [2022-03-15 13:43:07,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:07,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:07,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:07,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:07,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:07,814 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) [2022-03-15 13:43:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:08,433 INFO L93 Difference]: Finished difference Result 15295 states and 43672 transitions. [2022-03-15 13:43:08,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:08,433 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 [2022-03-15 13:43:08,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:08,463 INFO L225 Difference]: With dead ends: 15295 [2022-03-15 13:43:08,463 INFO L226 Difference]: Without dead ends: 15295 [2022-03-15 13:43:08,463 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 [2022-03-15 13:43:08,463 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1189 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:43:08,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 3640 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:43:08,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15295 states. [2022-03-15 13:43:08,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15295 to 8276. [2022-03-15 13:43:08,634 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) [2022-03-15 13:43:08,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23393 transitions. [2022-03-15 13:43:08,651 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23393 transitions. Word has length 223 [2022-03-15 13:43:08,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:08,651 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23393 transitions. [2022-03-15 13:43:08,651 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) [2022-03-15 13:43:08,651 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23393 transitions. [2022-03-15 13:43:08,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:08,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:08,664 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] [2022-03-15 13:43:08,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-15 13:43:08,664 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:08,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:08,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1222276594, now seen corresponding path program 68 times [2022-03-15 13:43:08,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:08,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620639762] [2022-03-15 13:43:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:08,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:08,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:08,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620639762] [2022-03-15 13:43:08,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620639762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:08,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:08,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:08,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455280219] [2022-03-15 13:43:08,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:08,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:08,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:08,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:08,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:08,866 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) [2022-03-15 13:43:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:09,456 INFO L93 Difference]: Finished difference Result 15170 states and 43357 transitions. [2022-03-15 13:43:09,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:09,457 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 [2022-03-15 13:43:09,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:09,486 INFO L225 Difference]: With dead ends: 15170 [2022-03-15 13:43:09,486 INFO L226 Difference]: Without dead ends: 15170 [2022-03-15 13:43:09,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=252, Invalid=870, Unknown=0, NotChecked=0, Total=1122 [2022-03-15 13:43:09,487 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 [2022-03-15 13:43:09,487 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] [2022-03-15 13:43:09,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15170 states. [2022-03-15 13:43:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15170 to 8272. [2022-03-15 13:43:09,648 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) [2022-03-15 13:43:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23374 transitions. [2022-03-15 13:43:09,664 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23374 transitions. Word has length 223 [2022-03-15 13:43:09,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:09,664 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23374 transitions. [2022-03-15 13:43:09,665 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) [2022-03-15 13:43:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23374 transitions. [2022-03-15 13:43:09,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:09,676 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:09,676 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] [2022-03-15 13:43:09,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-15 13:43:09,677 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:09,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:09,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1376914944, now seen corresponding path program 69 times [2022-03-15 13:43:09,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:09,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954519650] [2022-03-15 13:43:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:09,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:09,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:09,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954519650] [2022-03-15 13:43:09,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954519650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:09,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:09,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:09,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344298635] [2022-03-15 13:43:09,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:09,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:09,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:09,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:09,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:09,898 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) [2022-03-15 13:43:10,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:10,556 INFO L93 Difference]: Finished difference Result 16810 states and 48151 transitions. [2022-03-15 13:43:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:43:10,556 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 [2022-03-15 13:43:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:10,589 INFO L225 Difference]: With dead ends: 16810 [2022-03-15 13:43:10,589 INFO L226 Difference]: Without dead ends: 16810 [2022-03-15 13:43:10,590 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 [2022-03-15 13:43:10,590 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 [2022-03-15 13:43:10,590 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] [2022-03-15 13:43:10,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2022-03-15 13:43:10,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 8232. [2022-03-15 13:43:10,787 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) [2022-03-15 13:43:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8232 states to 8232 states and 23224 transitions. [2022-03-15 13:43:10,804 INFO L78 Accepts]: Start accepts. Automaton has 8232 states and 23224 transitions. Word has length 223 [2022-03-15 13:43:10,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:10,805 INFO L470 AbstractCegarLoop]: Abstraction has 8232 states and 23224 transitions. [2022-03-15 13:43:10,805 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) [2022-03-15 13:43:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8232 states and 23224 transitions. [2022-03-15 13:43:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-15 13:43:10,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:10,816 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] [2022-03-15 13:43:10,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-15 13:43:10,816 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:10,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:10,817 INFO L85 PathProgramCache]: Analyzing trace with hash -556140130, now seen corresponding path program 70 times [2022-03-15 13:43:10,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:10,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563592102] [2022-03-15 13:43:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:11,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:11,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563592102] [2022-03-15 13:43:11,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563592102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:11,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:11,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-15 13:43:11,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425807717] [2022-03-15 13:43:11,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:11,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 13:43:11,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 13:43:11,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:11,024 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) [2022-03-15 13:43:11,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:11,814 INFO L93 Difference]: Finished difference Result 21876 states and 62326 transitions. [2022-03-15 13:43:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-15 13:43:11,814 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 [2022-03-15 13:43:11,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:11,860 INFO L225 Difference]: With dead ends: 21876 [2022-03-15 13:43:11,860 INFO L226 Difference]: Without dead ends: 21876 [2022-03-15 13:43:11,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 13:43:11,860 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 [2022-03-15 13:43:11,861 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] [2022-03-15 13:43:11,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21876 states. [2022-03-15 13:43:12,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21876 to 8336. [2022-03-15 13:43:12,077 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) [2022-03-15 13:43:12,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 23522 transitions. [2022-03-15 13:43:12,095 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 23522 transitions. Word has length 223 [2022-03-15 13:43:12,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:12,095 INFO L470 AbstractCegarLoop]: Abstraction has 8336 states and 23522 transitions. [2022-03-15 13:43:12,095 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) [2022-03-15 13:43:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 23522 transitions. [2022-03-15 13:43:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:12,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:12,107 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] [2022-03-15 13:43:12,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-15 13:43:12,107 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:12,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1960384399, now seen corresponding path program 1 times [2022-03-15 13:43:12,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:12,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355955775] [2022-03-15 13:43:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:12,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:12,211 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:12,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:12,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355955775] [2022-03-15 13:43:12,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355955775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:12,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:12,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:12,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273996638] [2022-03-15 13:43:12,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:12,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:12,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:12,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:12,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:12,213 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) [2022-03-15 13:43:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:12,478 INFO L93 Difference]: Finished difference Result 10171 states and 28081 transitions. [2022-03-15 13:43:12,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:43:12,479 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 [2022-03-15 13:43:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:12,496 INFO L225 Difference]: With dead ends: 10171 [2022-03-15 13:43:12,497 INFO L226 Difference]: Without dead ends: 10024 [2022-03-15 13:43:12,497 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 [2022-03-15 13:43:12,497 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 [2022-03-15 13:43:12,497 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] [2022-03-15 13:43:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2022-03-15 13:43:12,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 9870. [2022-03-15 13:43:12,635 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) [2022-03-15 13:43:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9870 states to 9870 states and 27413 transitions. [2022-03-15 13:43:12,655 INFO L78 Accepts]: Start accepts. Automaton has 9870 states and 27413 transitions. Word has length 227 [2022-03-15 13:43:12,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:12,655 INFO L470 AbstractCegarLoop]: Abstraction has 9870 states and 27413 transitions. [2022-03-15 13:43:12,655 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) [2022-03-15 13:43:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9870 states and 27413 transitions. [2022-03-15 13:43:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:12,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:12,669 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, 1, 1, 1, 1] [2022-03-15 13:43:12,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-15 13:43:12,670 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash 871663653, now seen corresponding path program 2 times [2022-03-15 13:43:12,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:12,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660612254] [2022-03-15 13:43:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:12,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:12,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:12,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660612254] [2022-03-15 13:43:12,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660612254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:12,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:12,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:12,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433657682] [2022-03-15 13:43:12,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:12,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:12,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:12,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:12,771 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) [2022-03-15 13:43:13,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:13,075 INFO L93 Difference]: Finished difference Result 10195 states and 28097 transitions. [2022-03-15 13:43:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:43:13,076 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 [2022-03-15 13:43:13,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:13,093 INFO L225 Difference]: With dead ends: 10195 [2022-03-15 13:43:13,093 INFO L226 Difference]: Without dead ends: 9768 [2022-03-15 13:43:13,093 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 [2022-03-15 13:43:13,093 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 [2022-03-15 13:43:13,094 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] [2022-03-15 13:43:13,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2022-03-15 13:43:13,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9614. [2022-03-15 13:43:13,265 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) [2022-03-15 13:43:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9614 states to 9614 states and 26709 transitions. [2022-03-15 13:43:13,283 INFO L78 Accepts]: Start accepts. Automaton has 9614 states and 26709 transitions. Word has length 227 [2022-03-15 13:43:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:13,283 INFO L470 AbstractCegarLoop]: Abstraction has 9614 states and 26709 transitions. [2022-03-15 13:43:13,283 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) [2022-03-15 13:43:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 9614 states and 26709 transitions. [2022-03-15 13:43:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:13,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:13,296 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] [2022-03-15 13:43:13,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-15 13:43:13,296 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:13,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:13,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1010368307, now seen corresponding path program 3 times [2022-03-15 13:43:13,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:13,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537573365] [2022-03-15 13:43:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:13,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:13,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:13,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537573365] [2022-03-15 13:43:13,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537573365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:13,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:13,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:13,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783563168] [2022-03-15 13:43:13,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:13,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:13,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:13,395 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) [2022-03-15 13:43:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:13,648 INFO L93 Difference]: Finished difference Result 9885 states and 27294 transitions. [2022-03-15 13:43:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:13,648 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 [2022-03-15 13:43:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:13,666 INFO L225 Difference]: With dead ends: 9885 [2022-03-15 13:43:13,666 INFO L226 Difference]: Without dead ends: 9667 [2022-03-15 13:43:13,667 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 [2022-03-15 13:43:13,667 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 [2022-03-15 13:43:13,667 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] [2022-03-15 13:43:13,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-03-15 13:43:13,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 9582. [2022-03-15 13:43:13,797 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) [2022-03-15 13:43:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 26621 transitions. [2022-03-15 13:43:13,816 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 26621 transitions. Word has length 227 [2022-03-15 13:43:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:13,816 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 26621 transitions. [2022-03-15 13:43:13,816 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) [2022-03-15 13:43:13,816 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 26621 transitions. [2022-03-15 13:43:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:13,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:13,829 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] [2022-03-15 13:43:13,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-15 13:43:13,829 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:13,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:13,830 INFO L85 PathProgramCache]: Analyzing trace with hash -366274121, now seen corresponding path program 4 times [2022-03-15 13:43:13,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:13,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135196169] [2022-03-15 13:43:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:13,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:13,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:13,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135196169] [2022-03-15 13:43:13,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135196169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:13,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:13,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:13,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194110897] [2022-03-15 13:43:13,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:13,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:13,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:13,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:13,932 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) [2022-03-15 13:43:14,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:14,162 INFO L93 Difference]: Finished difference Result 9868 states and 27241 transitions. [2022-03-15 13:43:14,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:14,162 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 [2022-03-15 13:43:14,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:14,179 INFO L225 Difference]: With dead ends: 9868 [2022-03-15 13:43:14,179 INFO L226 Difference]: Without dead ends: 9635 [2022-03-15 13:43:14,179 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 [2022-03-15 13:43:14,180 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 [2022-03-15 13:43:14,180 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] [2022-03-15 13:43:14,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-03-15 13:43:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 9550. [2022-03-15 13:43:14,312 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) [2022-03-15 13:43:14,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 26533 transitions. [2022-03-15 13:43:14,331 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 26533 transitions. Word has length 227 [2022-03-15 13:43:14,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:14,331 INFO L470 AbstractCegarLoop]: Abstraction has 9550 states and 26533 transitions. [2022-03-15 13:43:14,332 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) [2022-03-15 13:43:14,332 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 26533 transitions. [2022-03-15 13:43:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:14,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:14,345 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] [2022-03-15 13:43:14,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-15 13:43:14,345 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:14,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:14,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1574838221, now seen corresponding path program 5 times [2022-03-15 13:43:14,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:14,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285840685] [2022-03-15 13:43:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:14,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:14,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:14,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285840685] [2022-03-15 13:43:14,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285840685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:14,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:14,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:14,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588363853] [2022-03-15 13:43:14,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:14,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:14,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:14,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:14,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:14,441 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) [2022-03-15 13:43:14,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:14,643 INFO L93 Difference]: Finished difference Result 9701 states and 26838 transitions. [2022-03-15 13:43:14,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:14,643 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 [2022-03-15 13:43:14,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:14,660 INFO L225 Difference]: With dead ends: 9701 [2022-03-15 13:43:14,660 INFO L226 Difference]: Without dead ends: 9453 [2022-03-15 13:43:14,661 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 [2022-03-15 13:43:14,661 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 [2022-03-15 13:43:14,661 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] [2022-03-15 13:43:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9453 states. [2022-03-15 13:43:14,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9453 to 9368. [2022-03-15 13:43:14,782 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) [2022-03-15 13:43:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 26076 transitions. [2022-03-15 13:43:14,801 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 26076 transitions. Word has length 227 [2022-03-15 13:43:14,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:14,801 INFO L470 AbstractCegarLoop]: Abstraction has 9368 states and 26076 transitions. [2022-03-15 13:43:14,801 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) [2022-03-15 13:43:14,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 26076 transitions. [2022-03-15 13:43:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:14,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:14,814 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] [2022-03-15 13:43:14,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-15 13:43:14,814 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:14,815 INFO L85 PathProgramCache]: Analyzing trace with hash 802199471, now seen corresponding path program 1 times [2022-03-15 13:43:14,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:14,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767418432] [2022-03-15 13:43:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:14,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:14,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:14,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767418432] [2022-03-15 13:43:14,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767418432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:14,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:14,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:43:14,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417877709] [2022-03-15 13:43:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:14,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:43:14,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:14,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:43:14,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:43:14,850 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) [2022-03-15 13:43:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:14,934 INFO L93 Difference]: Finished difference Result 14651 states and 40779 transitions. [2022-03-15 13:43:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:43:14,935 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 [2022-03-15 13:43:14,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:14,965 INFO L225 Difference]: With dead ends: 14651 [2022-03-15 13:43:14,965 INFO L226 Difference]: Without dead ends: 14651 [2022-03-15 13:43:14,965 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 [2022-03-15 13:43:14,966 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 [2022-03-15 13:43:14,966 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] [2022-03-15 13:43:14,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14651 states. [2022-03-15 13:43:15,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14651 to 11546. [2022-03-15 13:43:15,213 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) [2022-03-15 13:43:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11546 states to 11546 states and 32097 transitions. [2022-03-15 13:43:15,235 INFO L78 Accepts]: Start accepts. Automaton has 11546 states and 32097 transitions. Word has length 227 [2022-03-15 13:43:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:15,235 INFO L470 AbstractCegarLoop]: Abstraction has 11546 states and 32097 transitions. [2022-03-15 13:43:15,235 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) [2022-03-15 13:43:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 11546 states and 32097 transitions. [2022-03-15 13:43:15,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:15,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:15,250 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, 1, 1, 1, 1] [2022-03-15 13:43:15,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-15 13:43:15,250 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:15,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1326718921, now seen corresponding path program 6 times [2022-03-15 13:43:15,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:15,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894816712] [2022-03-15 13:43:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:15,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:15,355 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:15,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:15,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894816712] [2022-03-15 13:43:15,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894816712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:15,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:15,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:15,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994963981] [2022-03-15 13:43:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:15,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:15,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:15,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:15,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:15,357 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) [2022-03-15 13:43:15,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:15,645 INFO L93 Difference]: Finished difference Result 12578 states and 34703 transitions. [2022-03-15 13:43:15,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:15,646 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 [2022-03-15 13:43:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:15,669 INFO L225 Difference]: With dead ends: 12578 [2022-03-15 13:43:15,670 INFO L226 Difference]: Without dead ends: 12431 [2022-03-15 13:43:15,670 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 [2022-03-15 13:43:15,670 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 [2022-03-15 13:43:15,670 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] [2022-03-15 13:43:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12431 states. [2022-03-15 13:43:15,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12431 to 12005. [2022-03-15 13:43:15,838 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) [2022-03-15 13:43:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12005 states to 12005 states and 33271 transitions. [2022-03-15 13:43:15,863 INFO L78 Accepts]: Start accepts. Automaton has 12005 states and 33271 transitions. Word has length 227 [2022-03-15 13:43:15,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:15,863 INFO L470 AbstractCegarLoop]: Abstraction has 12005 states and 33271 transitions. [2022-03-15 13:43:15,863 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) [2022-03-15 13:43:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 12005 states and 33271 transitions. [2022-03-15 13:43:15,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:15,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:15,880 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] [2022-03-15 13:43:15,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-15 13:43:15,880 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:15,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1879527629, now seen corresponding path program 7 times [2022-03-15 13:43:15,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:15,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930605954] [2022-03-15 13:43:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:15,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:15,978 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:15,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:15,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930605954] [2022-03-15 13:43:15,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930605954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:15,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:15,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:15,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097332353] [2022-03-15 13:43:15,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:15,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:15,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:15,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:15,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:15,979 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) [2022-03-15 13:43:16,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:16,320 INFO L93 Difference]: Finished difference Result 12602 states and 34719 transitions. [2022-03-15 13:43:16,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:43:16,321 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 [2022-03-15 13:43:16,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:16,342 INFO L225 Difference]: With dead ends: 12602 [2022-03-15 13:43:16,342 INFO L226 Difference]: Without dead ends: 12175 [2022-03-15 13:43:16,343 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 [2022-03-15 13:43:16,343 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 [2022-03-15 13:43:16,343 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] [2022-03-15 13:43:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12175 states. [2022-03-15 13:43:16,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12175 to 11749. [2022-03-15 13:43:16,507 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) [2022-03-15 13:43:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 32567 transitions. [2022-03-15 13:43:16,531 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 32567 transitions. Word has length 227 [2022-03-15 13:43:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:16,532 INFO L470 AbstractCegarLoop]: Abstraction has 11749 states and 32567 transitions. [2022-03-15 13:43:16,532 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) [2022-03-15 13:43:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 32567 transitions. [2022-03-15 13:43:16,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:16,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:16,548 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] [2022-03-15 13:43:16,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-15 13:43:16,548 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:16,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2504331, now seen corresponding path program 8 times [2022-03-15 13:43:16,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:16,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57916318] [2022-03-15 13:43:16,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:16,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:16,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:16,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57916318] [2022-03-15 13:43:16,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57916318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:16,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:16,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:16,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830701966] [2022-03-15 13:43:16,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:16,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:16,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:16,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:16,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:16,664 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) [2022-03-15 13:43:16,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:16,909 INFO L93 Difference]: Finished difference Result 12292 states and 33916 transitions. [2022-03-15 13:43:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:16,910 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 [2022-03-15 13:43:16,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:16,931 INFO L225 Difference]: With dead ends: 12292 [2022-03-15 13:43:16,931 INFO L226 Difference]: Without dead ends: 12074 [2022-03-15 13:43:16,931 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 [2022-03-15 13:43:16,934 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 [2022-03-15 13:43:16,934 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] [2022-03-15 13:43:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12074 states. [2022-03-15 13:43:17,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12074 to 11717. [2022-03-15 13:43:17,091 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) [2022-03-15 13:43:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11717 states to 11717 states and 32479 transitions. [2022-03-15 13:43:17,115 INFO L78 Accepts]: Start accepts. Automaton has 11717 states and 32479 transitions. Word has length 227 [2022-03-15 13:43:17,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:17,115 INFO L470 AbstractCegarLoop]: Abstraction has 11717 states and 32479 transitions. [2022-03-15 13:43:17,115 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) [2022-03-15 13:43:17,115 INFO L276 IsEmpty]: Start isEmpty. Operand 11717 states and 32479 transitions. [2022-03-15 13:43:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:17,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:17,131 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] [2022-03-15 13:43:17,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-15 13:43:17,131 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:17,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash -818213115, now seen corresponding path program 9 times [2022-03-15 13:43:17,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:17,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824167436] [2022-03-15 13:43:17,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:17,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:17,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:17,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824167436] [2022-03-15 13:43:17,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824167436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:17,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:17,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:17,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411672730] [2022-03-15 13:43:17,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:17,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:17,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:17,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:17,229 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) [2022-03-15 13:43:17,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:17,476 INFO L93 Difference]: Finished difference Result 12140 states and 33548 transitions. [2022-03-15 13:43:17,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:17,477 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 [2022-03-15 13:43:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:17,495 INFO L225 Difference]: With dead ends: 12140 [2022-03-15 13:43:17,495 INFO L226 Difference]: Without dead ends: 11907 [2022-03-15 13:43:17,496 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 [2022-03-15 13:43:17,496 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 [2022-03-15 13:43:17,496 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] [2022-03-15 13:43:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11907 states. [2022-03-15 13:43:17,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11907 to 11550. [2022-03-15 13:43:17,645 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) [2022-03-15 13:43:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 32104 transitions. [2022-03-15 13:43:17,669 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 32104 transitions. Word has length 227 [2022-03-15 13:43:17,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:17,670 INFO L470 AbstractCegarLoop]: Abstraction has 11550 states and 32104 transitions. [2022-03-15 13:43:17,670 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) [2022-03-15 13:43:17,670 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 32104 transitions. [2022-03-15 13:43:17,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:17,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:17,686 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] [2022-03-15 13:43:17,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-15 13:43:17,686 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:17,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:17,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1387001287, now seen corresponding path program 10 times [2022-03-15 13:43:17,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:17,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775459169] [2022-03-15 13:43:17,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:17,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:17,781 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:17,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:17,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775459169] [2022-03-15 13:43:17,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775459169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:17,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:17,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:17,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359065090] [2022-03-15 13:43:17,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:17,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:17,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:17,782 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) [2022-03-15 13:43:18,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:18,015 INFO L93 Difference]: Finished difference Result 12379 states and 34183 transitions. [2022-03-15 13:43:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:18,016 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 [2022-03-15 13:43:18,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:18,037 INFO L225 Difference]: With dead ends: 12379 [2022-03-15 13:43:18,037 INFO L226 Difference]: Without dead ends: 12232 [2022-03-15 13:43:18,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:43:18,038 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 [2022-03-15 13:43:18,038 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] [2022-03-15 13:43:18,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2022-03-15 13:43:18,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 11962. [2022-03-15 13:43:18,198 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) [2022-03-15 13:43:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 33155 transitions. [2022-03-15 13:43:18,223 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 33155 transitions. Word has length 227 [2022-03-15 13:43:18,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:18,223 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 33155 transitions. [2022-03-15 13:43:18,223 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) [2022-03-15 13:43:18,224 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 33155 transitions. [2022-03-15 13:43:18,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:18,240 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:18,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:43:18,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-15 13:43:18,241 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:18,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1819245263, now seen corresponding path program 11 times [2022-03-15 13:43:18,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:18,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801939917] [2022-03-15 13:43:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:18,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:18,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:18,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801939917] [2022-03-15 13:43:18,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801939917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:18,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:18,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:18,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938477373] [2022-03-15 13:43:18,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:18,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:18,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:18,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:18,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:18,339 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) [2022-03-15 13:43:18,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:18,613 INFO L93 Difference]: Finished difference Result 12403 states and 34199 transitions. [2022-03-15 13:43:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:18,613 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 [2022-03-15 13:43:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:18,636 INFO L225 Difference]: With dead ends: 12403 [2022-03-15 13:43:18,636 INFO L226 Difference]: Without dead ends: 11976 [2022-03-15 13:43:18,636 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 [2022-03-15 13:43:18,636 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 [2022-03-15 13:43:18,636 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] [2022-03-15 13:43:18,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11976 states. [2022-03-15 13:43:18,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11976 to 11706. [2022-03-15 13:43:18,806 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) [2022-03-15 13:43:18,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11706 states to 11706 states and 32451 transitions. [2022-03-15 13:43:18,830 INFO L78 Accepts]: Start accepts. Automaton has 11706 states and 32451 transitions. Word has length 227 [2022-03-15 13:43:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:18,830 INFO L470 AbstractCegarLoop]: Abstraction has 11706 states and 32451 transitions. [2022-03-15 13:43:18,831 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) [2022-03-15 13:43:18,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11706 states and 32451 transitions. [2022-03-15 13:43:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:18,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:18,847 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] [2022-03-15 13:43:18,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-15 13:43:18,847 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash -62786697, now seen corresponding path program 12 times [2022-03-15 13:43:18,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:18,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430049383] [2022-03-15 13:43:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:18,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:18,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430049383] [2022-03-15 13:43:18,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430049383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:18,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:18,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:18,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133675932] [2022-03-15 13:43:18,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:18,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:18,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:18,945 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) [2022-03-15 13:43:19,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:19,138 INFO L93 Difference]: Finished difference Result 11973 states and 33116 transitions. [2022-03-15 13:43:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:43:19,138 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 [2022-03-15 13:43:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:19,159 INFO L225 Difference]: With dead ends: 11973 [2022-03-15 13:43:19,159 INFO L226 Difference]: Without dead ends: 11755 [2022-03-15 13:43:19,160 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 [2022-03-15 13:43:19,160 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 [2022-03-15 13:43:19,160 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] [2022-03-15 13:43:19,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2022-03-15 13:43:19,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 11554. [2022-03-15 13:43:19,326 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) [2022-03-15 13:43:19,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11554 states to 11554 states and 32111 transitions. [2022-03-15 13:43:19,418 INFO L78 Accepts]: Start accepts. Automaton has 11554 states and 32111 transitions. Word has length 227 [2022-03-15 13:43:19,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:19,419 INFO L470 AbstractCegarLoop]: Abstraction has 11554 states and 32111 transitions. [2022-03-15 13:43:19,419 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) [2022-03-15 13:43:19,419 INFO L276 IsEmpty]: Start isEmpty. Operand 11554 states and 32111 transitions. [2022-03-15 13:43:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:19,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:19,434 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] [2022-03-15 13:43:19,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-15 13:43:19,435 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:19,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1786980807, now seen corresponding path program 13 times [2022-03-15 13:43:19,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:19,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631551262] [2022-03-15 13:43:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:19,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:19,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:19,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631551262] [2022-03-15 13:43:19,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631551262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:19,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:19,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:19,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129024511] [2022-03-15 13:43:19,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:19,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:19,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:19,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:19,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:19,533 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) [2022-03-15 13:43:19,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:19,761 INFO L93 Difference]: Finished difference Result 12325 states and 33970 transitions. [2022-03-15 13:43:19,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:19,761 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 [2022-03-15 13:43:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:19,784 INFO L225 Difference]: With dead ends: 12325 [2022-03-15 13:43:19,785 INFO L226 Difference]: Without dead ends: 12178 [2022-03-15 13:43:19,785 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 [2022-03-15 13:43:19,785 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 [2022-03-15 13:43:19,785 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] [2022-03-15 13:43:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2022-03-15 13:43:19,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 11947. [2022-03-15 13:43:19,950 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) [2022-03-15 13:43:19,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11947 states to 11947 states and 33116 transitions. [2022-03-15 13:43:19,974 INFO L78 Accepts]: Start accepts. Automaton has 11947 states and 33116 transitions. Word has length 227 [2022-03-15 13:43:19,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:19,975 INFO L470 AbstractCegarLoop]: Abstraction has 11947 states and 33116 transitions. [2022-03-15 13:43:19,975 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) [2022-03-15 13:43:19,975 INFO L276 IsEmpty]: Start isEmpty. Operand 11947 states and 33116 transitions. [2022-03-15 13:43:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:19,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:19,991 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, 1, 1, 1, 1] [2022-03-15 13:43:19,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-15 13:43:19,991 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:19,992 INFO L85 PathProgramCache]: Analyzing trace with hash 698260061, now seen corresponding path program 14 times [2022-03-15 13:43:19,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:19,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882872112] [2022-03-15 13:43:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:19,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:20,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:20,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882872112] [2022-03-15 13:43:20,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882872112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:20,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:20,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:20,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065697875] [2022-03-15 13:43:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:20,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:20,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:20,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:20,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:20,093 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) [2022-03-15 13:43:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:20,322 INFO L93 Difference]: Finished difference Result 12175 states and 33607 transitions. [2022-03-15 13:43:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:20,323 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 [2022-03-15 13:43:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:20,343 INFO L225 Difference]: With dead ends: 12175 [2022-03-15 13:43:20,343 INFO L226 Difference]: Without dead ends: 11748 [2022-03-15 13:43:20,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:43:20,343 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 [2022-03-15 13:43:20,343 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] [2022-03-15 13:43:20,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11748 states. [2022-03-15 13:43:20,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11748 to 11586. [2022-03-15 13:43:20,491 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) [2022-03-15 13:43:20,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 32167 transitions. [2022-03-15 13:43:20,514 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 32167 transitions. Word has length 227 [2022-03-15 13:43:20,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:20,514 INFO L470 AbstractCegarLoop]: Abstraction has 11586 states and 32167 transitions. [2022-03-15 13:43:20,514 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) [2022-03-15 13:43:20,514 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 32167 transitions. [2022-03-15 13:43:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:20,530 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:20,530 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] [2022-03-15 13:43:20,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-15 13:43:20,530 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash 168555327, now seen corresponding path program 15 times [2022-03-15 13:43:20,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:20,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669897958] [2022-03-15 13:43:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:20,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:20,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669897958] [2022-03-15 13:43:20,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669897958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:20,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:20,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:20,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559148667] [2022-03-15 13:43:20,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:20,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:20,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:20,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:20,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:20,626 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) [2022-03-15 13:43:20,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:20,796 INFO L93 Difference]: Finished difference Result 11745 states and 32524 transitions. [2022-03-15 13:43:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:20,796 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 [2022-03-15 13:43:20,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:20,817 INFO L225 Difference]: With dead ends: 11745 [2022-03-15 13:43:20,818 INFO L226 Difference]: Without dead ends: 11542 [2022-03-15 13:43:20,818 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 [2022-03-15 13:43:20,818 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 [2022-03-15 13:43:20,818 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] [2022-03-15 13:43:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11542 states. [2022-03-15 13:43:20,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11542 to 11542. [2022-03-15 13:43:20,972 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) [2022-03-15 13:43:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11542 states to 11542 states and 32082 transitions. [2022-03-15 13:43:20,995 INFO L78 Accepts]: Start accepts. Automaton has 11542 states and 32082 transitions. Word has length 227 [2022-03-15 13:43:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:20,996 INFO L470 AbstractCegarLoop]: Abstraction has 11542 states and 32082 transitions. [2022-03-15 13:43:20,996 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) [2022-03-15 13:43:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 11542 states and 32082 transitions. [2022-03-15 13:43:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:21,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:21,012 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] [2022-03-15 13:43:21,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-15 13:43:21,012 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:21,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2010123885, now seen corresponding path program 16 times [2022-03-15 13:43:21,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:21,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825089231] [2022-03-15 13:43:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:21,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:21,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:21,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825089231] [2022-03-15 13:43:21,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825089231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:21,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:21,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:21,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81612151] [2022-03-15 13:43:21,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:21,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:21,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:21,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:21,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:21,107 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) [2022-03-15 13:43:21,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:21,352 INFO L93 Difference]: Finished difference Result 13860 states and 38299 transitions. [2022-03-15 13:43:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:21,352 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 [2022-03-15 13:43:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:21,420 INFO L225 Difference]: With dead ends: 13860 [2022-03-15 13:43:21,420 INFO L226 Difference]: Without dead ends: 13713 [2022-03-15 13:43:21,420 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 [2022-03-15 13:43:21,421 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 [2022-03-15 13:43:21,421 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] [2022-03-15 13:43:21,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13713 states. [2022-03-15 13:43:21,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13713 to 11950. [2022-03-15 13:43:21,579 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) [2022-03-15 13:43:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 33122 transitions. [2022-03-15 13:43:21,603 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 33122 transitions. Word has length 227 [2022-03-15 13:43:21,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:21,603 INFO L470 AbstractCegarLoop]: Abstraction has 11950 states and 33122 transitions. [2022-03-15 13:43:21,603 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) [2022-03-15 13:43:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 33122 transitions. [2022-03-15 13:43:21,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:21,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:21,620 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] [2022-03-15 13:43:21,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-15 13:43:21,620 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:21,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:21,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1196122665, now seen corresponding path program 17 times [2022-03-15 13:43:21,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:21,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086946661] [2022-03-15 13:43:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:21,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:21,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086946661] [2022-03-15 13:43:21,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086946661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:21,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:21,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:21,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198434254] [2022-03-15 13:43:21,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:21,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:21,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:21,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:21,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:21,714 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) [2022-03-15 13:43:22,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:22,007 INFO L93 Difference]: Finished difference Result 13884 states and 38315 transitions. [2022-03-15 13:43:22,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:22,007 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 [2022-03-15 13:43:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:22,033 INFO L225 Difference]: With dead ends: 13884 [2022-03-15 13:43:22,033 INFO L226 Difference]: Without dead ends: 13457 [2022-03-15 13:43:22,033 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 [2022-03-15 13:43:22,034 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 [2022-03-15 13:43:22,034 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] [2022-03-15 13:43:22,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2022-03-15 13:43:22,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 11694. [2022-03-15 13:43:22,205 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) [2022-03-15 13:43:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11694 states to 11694 states and 32418 transitions. [2022-03-15 13:43:22,228 INFO L78 Accepts]: Start accepts. Automaton has 11694 states and 32418 transitions. Word has length 227 [2022-03-15 13:43:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:22,228 INFO L470 AbstractCegarLoop]: Abstraction has 11694 states and 32418 transitions. [2022-03-15 13:43:22,228 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) [2022-03-15 13:43:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 11694 states and 32418 transitions. [2022-03-15 13:43:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:22,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:22,244 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] [2022-03-15 13:43:22,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-15 13:43:22,244 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:22,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:22,245 INFO L85 PathProgramCache]: Analyzing trace with hash -685909295, now seen corresponding path program 18 times [2022-03-15 13:43:22,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:22,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029452123] [2022-03-15 13:43:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:22,336 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:22,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:22,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029452123] [2022-03-15 13:43:22,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029452123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:22,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:22,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:22,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970293816] [2022-03-15 13:43:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:22,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:22,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:22,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:22,337 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) [2022-03-15 13:43:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:22,556 INFO L93 Difference]: Finished difference Result 13574 states and 37512 transitions. [2022-03-15 13:43:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:22,556 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 [2022-03-15 13:43:22,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:22,581 INFO L225 Difference]: With dead ends: 13574 [2022-03-15 13:43:22,581 INFO L226 Difference]: Without dead ends: 13356 [2022-03-15 13:43:22,582 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 [2022-03-15 13:43:22,582 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 [2022-03-15 13:43:22,582 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] [2022-03-15 13:43:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2022-03-15 13:43:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 11662. [2022-03-15 13:43:22,754 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) [2022-03-15 13:43:22,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11662 states to 11662 states and 32330 transitions. [2022-03-15 13:43:22,778 INFO L78 Accepts]: Start accepts. Automaton has 11662 states and 32330 transitions. Word has length 227 [2022-03-15 13:43:22,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:22,778 INFO L470 AbstractCegarLoop]: Abstraction has 11662 states and 32330 transitions. [2022-03-15 13:43:22,778 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) [2022-03-15 13:43:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 11662 states and 32330 transitions. [2022-03-15 13:43:22,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:22,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:22,794 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] [2022-03-15 13:43:22,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-15 13:43:22,794 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:22,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:22,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1501618079, now seen corresponding path program 19 times [2022-03-15 13:43:22,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:22,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589019276] [2022-03-15 13:43:22,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:22,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:22,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:22,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589019276] [2022-03-15 13:43:22,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589019276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:22,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:22,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:22,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429902798] [2022-03-15 13:43:22,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:22,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:22,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:22,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:22,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:22,885 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) [2022-03-15 13:43:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:23,077 INFO L93 Difference]: Finished difference Result 13422 states and 37144 transitions. [2022-03-15 13:43:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:23,078 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 [2022-03-15 13:43:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:23,102 INFO L225 Difference]: With dead ends: 13422 [2022-03-15 13:43:23,102 INFO L226 Difference]: Without dead ends: 13189 [2022-03-15 13:43:23,102 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 [2022-03-15 13:43:23,102 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 [2022-03-15 13:43:23,102 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] [2022-03-15 13:43:23,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13189 states. [2022-03-15 13:43:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13189 to 11495. [2022-03-15 13:43:23,332 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) [2022-03-15 13:43:23,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11495 states to 11495 states and 31955 transitions. [2022-03-15 13:43:23,355 INFO L78 Accepts]: Start accepts. Automaton has 11495 states and 31955 transitions. Word has length 227 [2022-03-15 13:43:23,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:23,355 INFO L470 AbstractCegarLoop]: Abstraction has 11495 states and 31955 transitions. [2022-03-15 13:43:23,356 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) [2022-03-15 13:43:23,356 INFO L276 IsEmpty]: Start isEmpty. Operand 11495 states and 31955 transitions. [2022-03-15 13:43:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:23,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:23,372 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] [2022-03-15 13:43:23,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-15 13:43:23,372 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2070406251, now seen corresponding path program 20 times [2022-03-15 13:43:23,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:23,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744586744] [2022-03-15 13:43:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:23,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:23,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:23,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744586744] [2022-03-15 13:43:23,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744586744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:23,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:23,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:23,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280132705] [2022-03-15 13:43:23,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:23,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:23,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:23,469 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) [2022-03-15 13:43:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:23,711 INFO L93 Difference]: Finished difference Result 13970 states and 38585 transitions. [2022-03-15 13:43:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:23,711 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 [2022-03-15 13:43:23,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:23,738 INFO L225 Difference]: With dead ends: 13970 [2022-03-15 13:43:23,738 INFO L226 Difference]: Without dead ends: 13823 [2022-03-15 13:43:23,738 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 [2022-03-15 13:43:23,738 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 [2022-03-15 13:43:23,738 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] [2022-03-15 13:43:23,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13823 states. [2022-03-15 13:43:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13823 to 11907. [2022-03-15 13:43:23,920 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) [2022-03-15 13:43:23,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11907 states to 11907 states and 33006 transitions. [2022-03-15 13:43:23,945 INFO L78 Accepts]: Start accepts. Automaton has 11907 states and 33006 transitions. Word has length 227 [2022-03-15 13:43:23,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:23,945 INFO L470 AbstractCegarLoop]: Abstraction has 11907 states and 33006 transitions. [2022-03-15 13:43:23,945 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) [2022-03-15 13:43:23,945 INFO L276 IsEmpty]: Start isEmpty. Operand 11907 states and 33006 transitions. [2022-03-15 13:43:23,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:23,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:23,962 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] [2022-03-15 13:43:23,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-15 13:43:23,962 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:23,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:23,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1135840299, now seen corresponding path program 21 times [2022-03-15 13:43:23,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:23,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345622365] [2022-03-15 13:43:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:23,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:24,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:24,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345622365] [2022-03-15 13:43:24,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345622365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:24,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:24,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:24,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064554571] [2022-03-15 13:43:24,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:24,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:24,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:24,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:24,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:24,069 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) [2022-03-15 13:43:24,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:24,367 INFO L93 Difference]: Finished difference Result 13994 states and 38601 transitions. [2022-03-15 13:43:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:43:24,368 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 [2022-03-15 13:43:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:24,394 INFO L225 Difference]: With dead ends: 13994 [2022-03-15 13:43:24,395 INFO L226 Difference]: Without dead ends: 13567 [2022-03-15 13:43:24,395 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 [2022-03-15 13:43:24,395 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 [2022-03-15 13:43:24,395 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] [2022-03-15 13:43:24,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2022-03-15 13:43:24,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 11651. [2022-03-15 13:43:24,573 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) [2022-03-15 13:43:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 32302 transitions. [2022-03-15 13:43:24,597 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 32302 transitions. Word has length 227 [2022-03-15 13:43:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:24,597 INFO L470 AbstractCegarLoop]: Abstraction has 11651 states and 32302 transitions. [2022-03-15 13:43:24,597 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) [2022-03-15 13:43:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 32302 transitions. [2022-03-15 13:43:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:24,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:24,614 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] [2022-03-15 13:43:24,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-15 13:43:24,614 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:24,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:24,614 INFO L85 PathProgramCache]: Analyzing trace with hash -746191661, now seen corresponding path program 22 times [2022-03-15 13:43:24,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:24,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065988632] [2022-03-15 13:43:24,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:24,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:24,710 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:24,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:24,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065988632] [2022-03-15 13:43:24,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065988632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:24,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:24,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:24,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561665857] [2022-03-15 13:43:24,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:24,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:24,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:24,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:24,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:24,711 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) [2022-03-15 13:43:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:24,945 INFO L93 Difference]: Finished difference Result 13564 states and 37518 transitions. [2022-03-15 13:43:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:24,945 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 [2022-03-15 13:43:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:24,970 INFO L225 Difference]: With dead ends: 13564 [2022-03-15 13:43:24,970 INFO L226 Difference]: Without dead ends: 13346 [2022-03-15 13:43:24,970 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 [2022-03-15 13:43:24,970 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 [2022-03-15 13:43:24,970 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] [2022-03-15 13:43:24,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13346 states. [2022-03-15 13:43:25,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13346 to 11499. [2022-03-15 13:43:25,136 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) [2022-03-15 13:43:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 31962 transitions. [2022-03-15 13:43:25,160 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 31962 transitions. Word has length 227 [2022-03-15 13:43:25,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:25,160 INFO L470 AbstractCegarLoop]: Abstraction has 11499 states and 31962 transitions. [2022-03-15 13:43:25,161 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) [2022-03-15 13:43:25,161 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 31962 transitions. [2022-03-15 13:43:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:25,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:25,177 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, 1, 1, 1, 1] [2022-03-15 13:43:25,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-15 13:43:25,177 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:25,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1103575843, now seen corresponding path program 23 times [2022-03-15 13:43:25,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:25,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941576090] [2022-03-15 13:43:25,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:25,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:25,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:25,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941576090] [2022-03-15 13:43:25,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941576090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:25,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:25,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:25,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295800696] [2022-03-15 13:43:25,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:25,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:25,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:25,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:25,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:25,273 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) [2022-03-15 13:43:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:25,564 INFO L93 Difference]: Finished difference Result 13964 states and 38504 transitions. [2022-03-15 13:43:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:43:25,565 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 [2022-03-15 13:43:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:25,593 INFO L225 Difference]: With dead ends: 13964 [2022-03-15 13:43:25,594 INFO L226 Difference]: Without dead ends: 13817 [2022-03-15 13:43:25,594 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 [2022-03-15 13:43:25,594 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 [2022-03-15 13:43:25,594 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] [2022-03-15 13:43:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13817 states. [2022-03-15 13:43:25,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13817 to 11892. [2022-03-15 13:43:25,783 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) [2022-03-15 13:43:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11892 states to 11892 states and 32967 transitions. [2022-03-15 13:43:25,807 INFO L78 Accepts]: Start accepts. Automaton has 11892 states and 32967 transitions. Word has length 227 [2022-03-15 13:43:25,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:25,807 INFO L470 AbstractCegarLoop]: Abstraction has 11892 states and 32967 transitions. [2022-03-15 13:43:25,807 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) [2022-03-15 13:43:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 11892 states and 32967 transitions. [2022-03-15 13:43:25,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:25,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:25,824 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] [2022-03-15 13:43:25,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-15 13:43:25,824 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:25,825 INFO L85 PathProgramCache]: Analyzing trace with hash 14855097, now seen corresponding path program 24 times [2022-03-15 13:43:25,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:25,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415262670] [2022-03-15 13:43:25,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:25,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:25,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:25,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415262670] [2022-03-15 13:43:25,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415262670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:25,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:25,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:25,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113685861] [2022-03-15 13:43:25,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:25,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:25,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:25,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:25,922 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) [2022-03-15 13:43:26,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:26,200 INFO L93 Difference]: Finished difference Result 13814 states and 38141 transitions. [2022-03-15 13:43:26,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:43:26,200 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 [2022-03-15 13:43:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:26,225 INFO L225 Difference]: With dead ends: 13814 [2022-03-15 13:43:26,226 INFO L226 Difference]: Without dead ends: 13387 [2022-03-15 13:43:26,226 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 [2022-03-15 13:43:26,226 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 [2022-03-15 13:43:26,226 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] [2022-03-15 13:43:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13387 states. [2022-03-15 13:43:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13387 to 11531. [2022-03-15 13:43:26,397 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) [2022-03-15 13:43:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11531 states to 11531 states and 32018 transitions. [2022-03-15 13:43:26,421 INFO L78 Accepts]: Start accepts. Automaton has 11531 states and 32018 transitions. Word has length 227 [2022-03-15 13:43:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:26,422 INFO L470 AbstractCegarLoop]: Abstraction has 11531 states and 32018 transitions. [2022-03-15 13:43:26,422 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) [2022-03-15 13:43:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11531 states and 32018 transitions. [2022-03-15 13:43:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:26,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:26,438 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] [2022-03-15 13:43:26,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-15 13:43:26,438 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:26,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash -514849637, now seen corresponding path program 25 times [2022-03-15 13:43:26,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:26,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587969668] [2022-03-15 13:43:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:26,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:26,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:26,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587969668] [2022-03-15 13:43:26,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587969668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:26,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:26,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:26,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092367322] [2022-03-15 13:43:26,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:26,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:26,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:26,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:26,536 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) [2022-03-15 13:43:26,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:26,734 INFO L93 Difference]: Finished difference Result 13384 states and 37058 transitions. [2022-03-15 13:43:26,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:26,735 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 [2022-03-15 13:43:26,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:26,762 INFO L225 Difference]: With dead ends: 13384 [2022-03-15 13:43:26,763 INFO L226 Difference]: Without dead ends: 13185 [2022-03-15 13:43:26,763 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 [2022-03-15 13:43:26,763 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 [2022-03-15 13:43:26,763 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] [2022-03-15 13:43:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2022-03-15 13:43:26,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 11491. [2022-03-15 13:43:26,940 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) [2022-03-15 13:43:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11491 states to 11491 states and 31944 transitions. [2022-03-15 13:43:26,963 INFO L78 Accepts]: Start accepts. Automaton has 11491 states and 31944 transitions. Word has length 227 [2022-03-15 13:43:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:26,964 INFO L470 AbstractCegarLoop]: Abstraction has 11491 states and 31944 transitions. [2022-03-15 13:43:26,964 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) [2022-03-15 13:43:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 11491 states and 31944 transitions. [2022-03-15 13:43:26,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:26,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:26,980 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] [2022-03-15 13:43:26,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-15 13:43:26,980 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 805446415, now seen corresponding path program 26 times [2022-03-15 13:43:26,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:26,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684132564] [2022-03-15 13:43:26,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:26,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:27,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:27,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684132564] [2022-03-15 13:43:27,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684132564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:27,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:27,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:27,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797038945] [2022-03-15 13:43:27,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:27,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:27,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:27,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:27,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:27,070 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) [2022-03-15 13:43:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:27,291 INFO L93 Difference]: Finished difference Result 13762 states and 38038 transitions. [2022-03-15 13:43:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:27,291 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 [2022-03-15 13:43:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:27,318 INFO L225 Difference]: With dead ends: 13762 [2022-03-15 13:43:27,318 INFO L226 Difference]: Without dead ends: 13615 [2022-03-15 13:43:27,318 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 [2022-03-15 13:43:27,318 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 [2022-03-15 13:43:27,318 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] [2022-03-15 13:43:27,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-03-15 13:43:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 12075. [2022-03-15 13:43:27,526 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) [2022-03-15 13:43:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 33484 transitions. [2022-03-15 13:43:27,551 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 33484 transitions. Word has length 227 [2022-03-15 13:43:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:27,551 INFO L470 AbstractCegarLoop]: Abstraction has 12075 states and 33484 transitions. [2022-03-15 13:43:27,551 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) [2022-03-15 13:43:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 33484 transitions. [2022-03-15 13:43:27,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:27,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:27,568 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, 1, 1, 1, 1] [2022-03-15 13:43:27,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-15 13:43:27,568 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:27,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:27,569 INFO L85 PathProgramCache]: Analyzing trace with hash -283274331, now seen corresponding path program 27 times [2022-03-15 13:43:27,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:27,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034553822] [2022-03-15 13:43:27,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:27,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:27,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:27,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034553822] [2022-03-15 13:43:27,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034553822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:27,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:27,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:27,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080872116] [2022-03-15 13:43:27,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:27,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:27,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:27,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:27,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:27,663 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) [2022-03-15 13:43:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:27,970 INFO L93 Difference]: Finished difference Result 13786 states and 38054 transitions. [2022-03-15 13:43:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:27,970 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 [2022-03-15 13:43:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:27,998 INFO L225 Difference]: With dead ends: 13786 [2022-03-15 13:43:27,998 INFO L226 Difference]: Without dead ends: 13359 [2022-03-15 13:43:27,998 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 [2022-03-15 13:43:27,998 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 [2022-03-15 13:43:27,998 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] [2022-03-15 13:43:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13359 states. [2022-03-15 13:43:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13359 to 11819. [2022-03-15 13:43:28,174 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) [2022-03-15 13:43:28,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11819 states to 11819 states and 32780 transitions. [2022-03-15 13:43:28,199 INFO L78 Accepts]: Start accepts. Automaton has 11819 states and 32780 transitions. Word has length 227 [2022-03-15 13:43:28,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:28,199 INFO L470 AbstractCegarLoop]: Abstraction has 11819 states and 32780 transitions. [2022-03-15 13:43:28,199 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) [2022-03-15 13:43:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand 11819 states and 32780 transitions. [2022-03-15 13:43:28,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:28,216 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:28,216 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] [2022-03-15 13:43:28,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-15 13:43:28,216 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:28,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2129661005, now seen corresponding path program 28 times [2022-03-15 13:43:28,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:28,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215966418] [2022-03-15 13:43:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:28,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:28,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:28,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215966418] [2022-03-15 13:43:28,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215966418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:28,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:28,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:28,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895889202] [2022-03-15 13:43:28,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:28,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:28,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:28,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:28,308 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) [2022-03-15 13:43:28,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:28,541 INFO L93 Difference]: Finished difference Result 13356 states and 36971 transitions. [2022-03-15 13:43:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:28,541 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 [2022-03-15 13:43:28,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:28,567 INFO L225 Difference]: With dead ends: 13356 [2022-03-15 13:43:28,567 INFO L226 Difference]: Without dead ends: 13138 [2022-03-15 13:43:28,567 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 [2022-03-15 13:43:28,567 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 [2022-03-15 13:43:28,567 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] [2022-03-15 13:43:28,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13138 states. [2022-03-15 13:43:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13138 to 11667. [2022-03-15 13:43:28,735 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) [2022-03-15 13:43:28,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11667 states to 11667 states and 32440 transitions. [2022-03-15 13:43:28,760 INFO L78 Accepts]: Start accepts. Automaton has 11667 states and 32440 transitions. Word has length 227 [2022-03-15 13:43:28,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:28,760 INFO L470 AbstractCegarLoop]: Abstraction has 11667 states and 32440 transitions. [2022-03-15 13:43:28,760 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) [2022-03-15 13:43:28,760 INFO L276 IsEmpty]: Start isEmpty. Operand 11667 states and 32440 transitions. [2022-03-15 13:43:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:28,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:28,776 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, 1, 1, 1, 1] [2022-03-15 13:43:28,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-15 13:43:28,777 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash -315538787, now seen corresponding path program 29 times [2022-03-15 13:43:28,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:28,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396581714] [2022-03-15 13:43:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:28,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:28,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396581714] [2022-03-15 13:43:28,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396581714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:28,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:28,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:28,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245565662] [2022-03-15 13:43:28,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:28,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:28,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:28,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:28,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:28,873 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) [2022-03-15 13:43:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:29,154 INFO L93 Difference]: Finished difference Result 13909 states and 38359 transitions. [2022-03-15 13:43:29,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:29,155 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 [2022-03-15 13:43:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:29,181 INFO L225 Difference]: With dead ends: 13909 [2022-03-15 13:43:29,181 INFO L226 Difference]: Without dead ends: 13762 [2022-03-15 13:43:29,182 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 [2022-03-15 13:43:29,182 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 [2022-03-15 13:43:29,182 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] [2022-03-15 13:43:29,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13762 states. [2022-03-15 13:43:29,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13762 to 12060. [2022-03-15 13:43:29,365 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) [2022-03-15 13:43:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12060 states to 12060 states and 33445 transitions. [2022-03-15 13:43:29,389 INFO L78 Accepts]: Start accepts. Automaton has 12060 states and 33445 transitions. Word has length 227 [2022-03-15 13:43:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:29,390 INFO L470 AbstractCegarLoop]: Abstraction has 12060 states and 33445 transitions. [2022-03-15 13:43:29,390 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) [2022-03-15 13:43:29,390 INFO L276 IsEmpty]: Start isEmpty. Operand 12060 states and 33445 transitions. [2022-03-15 13:43:29,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:29,406 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:29,406 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] [2022-03-15 13:43:29,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-15 13:43:29,407 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:29,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:29,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1404259533, now seen corresponding path program 30 times [2022-03-15 13:43:29,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:29,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41186730] [2022-03-15 13:43:29,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:29,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:29,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41186730] [2022-03-15 13:43:29,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41186730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:29,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:29,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:29,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901931806] [2022-03-15 13:43:29,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:29,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:29,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:29,539 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) [2022-03-15 13:43:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:29,835 INFO L93 Difference]: Finished difference Result 13759 states and 37996 transitions. [2022-03-15 13:43:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:43:29,835 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 [2022-03-15 13:43:29,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:29,861 INFO L225 Difference]: With dead ends: 13759 [2022-03-15 13:43:29,862 INFO L226 Difference]: Without dead ends: 13332 [2022-03-15 13:43:29,862 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 [2022-03-15 13:43:29,862 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 [2022-03-15 13:43:29,862 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] [2022-03-15 13:43:29,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2022-03-15 13:43:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 11699. [2022-03-15 13:43:30,040 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) [2022-03-15 13:43:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32496 transitions. [2022-03-15 13:43:30,066 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32496 transitions. Word has length 227 [2022-03-15 13:43:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:30,066 INFO L470 AbstractCegarLoop]: Abstraction has 11699 states and 32496 transitions. [2022-03-15 13:43:30,066 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) [2022-03-15 13:43:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32496 transitions. [2022-03-15 13:43:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:30,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:30,083 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] [2022-03-15 13:43:30,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-15 13:43:30,084 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1933964267, now seen corresponding path program 31 times [2022-03-15 13:43:30,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:30,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294360095] [2022-03-15 13:43:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:30,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:30,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:30,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294360095] [2022-03-15 13:43:30,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294360095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:30,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:30,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:30,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902690512] [2022-03-15 13:43:30,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:30,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:30,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:30,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:30,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:30,182 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) [2022-03-15 13:43:30,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:30,378 INFO L93 Difference]: Finished difference Result 13329 states and 36913 transitions. [2022-03-15 13:43:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:30,378 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 [2022-03-15 13:43:30,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:30,403 INFO L225 Difference]: With dead ends: 13329 [2022-03-15 13:43:30,403 INFO L226 Difference]: Without dead ends: 13134 [2022-03-15 13:43:30,403 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 [2022-03-15 13:43:30,404 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 [2022-03-15 13:43:30,404 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] [2022-03-15 13:43:30,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2022-03-15 13:43:30,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 11663. [2022-03-15 13:43:30,575 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) [2022-03-15 13:43:30,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 32429 transitions. [2022-03-15 13:43:30,599 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 32429 transitions. Word has length 227 [2022-03-15 13:43:30,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:30,599 INFO L470 AbstractCegarLoop]: Abstraction has 11663 states and 32429 transitions. [2022-03-15 13:43:30,599 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) [2022-03-15 13:43:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 32429 transitions. [2022-03-15 13:43:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:30,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:30,616 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] [2022-03-15 13:43:30,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-15 13:43:30,616 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:30,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:30,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1079264617, now seen corresponding path program 32 times [2022-03-15 13:43:30,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:30,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287215883] [2022-03-15 13:43:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:30,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:30,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:30,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287215883] [2022-03-15 13:43:30,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287215883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:30,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:30,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:30,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037168980] [2022-03-15 13:43:30,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:30,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:30,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:30,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:30,701 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) [2022-03-15 13:43:30,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:30,968 INFO L93 Difference]: Finished difference Result 14563 states and 40037 transitions. [2022-03-15 13:43:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:43:30,969 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 [2022-03-15 13:43:30,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:30,994 INFO L225 Difference]: With dead ends: 14563 [2022-03-15 13:43:30,995 INFO L226 Difference]: Without dead ends: 14416 [2022-03-15 13:43:30,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:43:30,995 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 [2022-03-15 13:43:30,995 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] [2022-03-15 13:43:31,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14416 states. [2022-03-15 13:43:31,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14416 to 13479. [2022-03-15 13:43:31,197 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) [2022-03-15 13:43:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13479 states to 13479 states and 37469 transitions. [2022-03-15 13:43:31,227 INFO L78 Accepts]: Start accepts. Automaton has 13479 states and 37469 transitions. Word has length 227 [2022-03-15 13:43:31,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:31,227 INFO L470 AbstractCegarLoop]: Abstraction has 13479 states and 37469 transitions. [2022-03-15 13:43:31,227 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) [2022-03-15 13:43:31,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13479 states and 37469 transitions. [2022-03-15 13:43:31,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:31,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:31,248 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] [2022-03-15 13:43:31,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-15 13:43:31,249 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:31,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:31,249 INFO L85 PathProgramCache]: Analyzing trace with hash 2126981933, now seen corresponding path program 33 times [2022-03-15 13:43:31,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:31,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807093436] [2022-03-15 13:43:31,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:31,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:31,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:31,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807093436] [2022-03-15 13:43:31,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807093436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:31,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:31,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:31,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438187156] [2022-03-15 13:43:31,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:31,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:31,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:31,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:31,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:31,338 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) [2022-03-15 13:43:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:31,626 INFO L93 Difference]: Finished difference Result 14413 states and 39674 transitions. [2022-03-15 13:43:31,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:43:31,627 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 [2022-03-15 13:43:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:31,653 INFO L225 Difference]: With dead ends: 14413 [2022-03-15 13:43:31,653 INFO L226 Difference]: Without dead ends: 13986 [2022-03-15 13:43:31,653 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 [2022-03-15 13:43:31,654 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 [2022-03-15 13:43:31,654 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] [2022-03-15 13:43:31,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-03-15 13:43:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 13223. [2022-03-15 13:43:31,890 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) [2022-03-15 13:43:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13223 states to 13223 states and 36765 transitions. [2022-03-15 13:43:31,920 INFO L78 Accepts]: Start accepts. Automaton has 13223 states and 36765 transitions. Word has length 227 [2022-03-15 13:43:31,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:31,920 INFO L470 AbstractCegarLoop]: Abstraction has 13223 states and 36765 transitions. [2022-03-15 13:43:31,921 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) [2022-03-15 13:43:31,921 INFO L276 IsEmpty]: Start isEmpty. Operand 13223 states and 36765 transitions. [2022-03-15 13:43:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:31,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:31,941 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] [2022-03-15 13:43:31,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-15 13:43:31,941 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:31,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:31,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1597277199, now seen corresponding path program 34 times [2022-03-15 13:43:31,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:31,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365412644] [2022-03-15 13:43:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:31,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:32,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:32,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365412644] [2022-03-15 13:43:32,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365412644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:32,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:32,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:32,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131438984] [2022-03-15 13:43:32,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:32,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:32,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:32,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:32,031 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) [2022-03-15 13:43:32,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:32,259 INFO L93 Difference]: Finished difference Result 14079 states and 38823 transitions. [2022-03-15 13:43:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:32,260 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 [2022-03-15 13:43:32,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:32,288 INFO L225 Difference]: With dead ends: 14079 [2022-03-15 13:43:32,289 INFO L226 Difference]: Without dead ends: 13888 [2022-03-15 13:43:32,289 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 [2022-03-15 13:43:32,289 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 [2022-03-15 13:43:32,289 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] [2022-03-15 13:43:32,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-03-15 13:43:32,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13191. [2022-03-15 13:43:32,487 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) [2022-03-15 13:43:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 36677 transitions. [2022-03-15 13:43:32,518 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 36677 transitions. Word has length 227 [2022-03-15 13:43:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:32,518 INFO L470 AbstractCegarLoop]: Abstraction has 13191 states and 36677 transitions. [2022-03-15 13:43:32,518 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) [2022-03-15 13:43:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 36677 transitions. [2022-03-15 13:43:32,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:32,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:32,540 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] [2022-03-15 13:43:32,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-15 13:43:32,540 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:32,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:32,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1182713145, now seen corresponding path program 35 times [2022-03-15 13:43:32,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:32,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450400945] [2022-03-15 13:43:32,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:32,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:32,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:32,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450400945] [2022-03-15 13:43:32,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450400945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:32,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:32,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:32,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997092178] [2022-03-15 13:43:32,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:32,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:32,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:32,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:32,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:32,624 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) [2022-03-15 13:43:32,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:32,817 INFO L93 Difference]: Finished difference Result 13951 states and 38503 transitions. [2022-03-15 13:43:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:32,817 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 [2022-03-15 13:43:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:32,844 INFO L225 Difference]: With dead ends: 13951 [2022-03-15 13:43:32,844 INFO L226 Difference]: Without dead ends: 13736 [2022-03-15 13:43:32,844 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 [2022-03-15 13:43:32,844 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 [2022-03-15 13:43:32,845 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] [2022-03-15 13:43:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-03-15 13:43:33,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 12979. [2022-03-15 13:43:33,033 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) [2022-03-15 13:43:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 36006 transitions. [2022-03-15 13:43:33,060 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 36006 transitions. Word has length 227 [2022-03-15 13:43:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:33,060 INFO L470 AbstractCegarLoop]: Abstraction has 12979 states and 36006 transitions. [2022-03-15 13:43:33,060 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) [2022-03-15 13:43:33,060 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 36006 transitions. [2022-03-15 13:43:33,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:33,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:33,080 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] [2022-03-15 13:43:33,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-15 13:43:33,080 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:33,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1918630919, now seen corresponding path program 1 times [2022-03-15 13:43:33,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:33,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692174772] [2022-03-15 13:43:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:33,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:33,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:33,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692174772] [2022-03-15 13:43:33,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692174772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:33,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:33,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:33,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306223245] [2022-03-15 13:43:33,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:33,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:33,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:33,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:33,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:33,194 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) [2022-03-15 13:43:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:33,519 INFO L93 Difference]: Finished difference Result 16694 states and 45764 transitions. [2022-03-15 13:43:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:43:33,519 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 [2022-03-15 13:43:33,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:33,548 INFO L225 Difference]: With dead ends: 16694 [2022-03-15 13:43:33,549 INFO L226 Difference]: Without dead ends: 16547 [2022-03-15 13:43:33,549 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 [2022-03-15 13:43:33,549 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 [2022-03-15 13:43:33,549 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] [2022-03-15 13:43:33,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16547 states. [2022-03-15 13:43:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16547 to 15795. [2022-03-15 13:43:33,822 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) [2022-03-15 13:43:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 43636 transitions. [2022-03-15 13:43:33,856 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 43636 transitions. Word has length 227 [2022-03-15 13:43:33,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:33,857 INFO L470 AbstractCegarLoop]: Abstraction has 15795 states and 43636 transitions. [2022-03-15 13:43:33,857 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) [2022-03-15 13:43:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 43636 transitions. [2022-03-15 13:43:33,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:33,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:33,881 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] [2022-03-15 13:43:33,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-15 13:43:33,881 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:33,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:33,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1287615631, now seen corresponding path program 2 times [2022-03-15 13:43:33,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:33,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242699273] [2022-03-15 13:43:33,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:33,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:33,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:33,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242699273] [2022-03-15 13:43:33,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242699273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:33,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:33,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:33,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501288409] [2022-03-15 13:43:33,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:33,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:33,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:33,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:33,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:33,976 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) [2022-03-15 13:43:34,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:34,292 INFO L93 Difference]: Finished difference Result 16558 states and 45380 transitions. [2022-03-15 13:43:34,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:43:34,293 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 [2022-03-15 13:43:34,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:34,323 INFO L225 Difference]: With dead ends: 16558 [2022-03-15 13:43:34,324 INFO L226 Difference]: Without dead ends: 16131 [2022-03-15 13:43:34,324 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 [2022-03-15 13:43:34,324 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 [2022-03-15 13:43:34,324 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] [2022-03-15 13:43:34,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2022-03-15 13:43:34,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 15539. [2022-03-15 13:43:34,557 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) [2022-03-15 13:43:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 42932 transitions. [2022-03-15 13:43:34,592 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 42932 transitions. Word has length 227 [2022-03-15 13:43:34,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:34,593 INFO L470 AbstractCegarLoop]: Abstraction has 15539 states and 42932 transitions. [2022-03-15 13:43:34,593 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) [2022-03-15 13:43:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 42932 transitions. [2022-03-15 13:43:34,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:34,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:34,617 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] [2022-03-15 13:43:34,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-15 13:43:34,617 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:34,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:34,617 INFO L85 PathProgramCache]: Analyzing trace with hash -594416329, now seen corresponding path program 3 times [2022-03-15 13:43:34,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:34,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356181325] [2022-03-15 13:43:34,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:34,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:34,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:34,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356181325] [2022-03-15 13:43:34,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356181325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:34,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:34,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:34,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313548841] [2022-03-15 13:43:34,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:34,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:34,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:34,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:34,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:34,707 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) [2022-03-15 13:43:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:34,951 INFO L93 Difference]: Finished difference Result 16188 states and 44437 transitions. [2022-03-15 13:43:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:34,951 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 [2022-03-15 13:43:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:34,982 INFO L225 Difference]: With dead ends: 16188 [2022-03-15 13:43:34,982 INFO L226 Difference]: Without dead ends: 15970 [2022-03-15 13:43:34,982 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 [2022-03-15 13:43:34,982 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 [2022-03-15 13:43:34,982 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] [2022-03-15 13:43:35,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2022-03-15 13:43:35,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15507. [2022-03-15 13:43:35,211 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) [2022-03-15 13:43:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15507 states to 15507 states and 42844 transitions. [2022-03-15 13:43:35,248 INFO L78 Accepts]: Start accepts. Automaton has 15507 states and 42844 transitions. Word has length 227 [2022-03-15 13:43:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:35,248 INFO L470 AbstractCegarLoop]: Abstraction has 15507 states and 42844 transitions. [2022-03-15 13:43:35,248 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) [2022-03-15 13:43:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 15507 states and 42844 transitions. [2022-03-15 13:43:35,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:35,274 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:35,274 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] [2022-03-15 13:43:35,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-15 13:43:35,274 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:35,274 INFO L85 PathProgramCache]: Analyzing trace with hash -927845791, now seen corresponding path program 4 times [2022-03-15 13:43:35,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:35,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259484621] [2022-03-15 13:43:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:35,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:35,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:35,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259484621] [2022-03-15 13:43:35,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259484621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:35,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:35,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:35,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4523422] [2022-03-15 13:43:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:35,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:35,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:35,362 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) [2022-03-15 13:43:35,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:35,617 INFO L93 Difference]: Finished difference Result 16096 states and 44209 transitions. [2022-03-15 13:43:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:35,617 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 [2022-03-15 13:43:35,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:35,647 INFO L225 Difference]: With dead ends: 16096 [2022-03-15 13:43:35,647 INFO L226 Difference]: Without dead ends: 15863 [2022-03-15 13:43:35,647 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 [2022-03-15 13:43:35,647 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 [2022-03-15 13:43:35,647 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] [2022-03-15 13:43:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15863 states. [2022-03-15 13:43:35,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15863 to 15460. [2022-03-15 13:43:35,874 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) [2022-03-15 13:43:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42702 transitions. [2022-03-15 13:43:35,908 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42702 transitions. Word has length 227 [2022-03-15 13:43:35,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:35,908 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42702 transitions. [2022-03-15 13:43:35,908 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) [2022-03-15 13:43:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42702 transitions. [2022-03-15 13:43:35,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:35,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:35,933 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] [2022-03-15 13:43:35,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-15 13:43:35,933 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1157381049, now seen corresponding path program 5 times [2022-03-15 13:43:35,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:35,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326229587] [2022-03-15 13:43:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:35,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:36,040 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:36,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:36,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326229587] [2022-03-15 13:43:36,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326229587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:36,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:36,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:36,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918340208] [2022-03-15 13:43:36,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:36,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:36,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:36,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:36,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:36,041 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) [2022-03-15 13:43:36,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:36,397 INFO L93 Difference]: Finished difference Result 16353 states and 44929 transitions. [2022-03-15 13:43:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:43:36,397 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 [2022-03-15 13:43:36,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:36,428 INFO L225 Difference]: With dead ends: 16353 [2022-03-15 13:43:36,428 INFO L226 Difference]: Without dead ends: 16206 [2022-03-15 13:43:36,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:43:36,429 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 [2022-03-15 13:43:36,429 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] [2022-03-15 13:43:36,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16206 states. [2022-03-15 13:43:36,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16206 to 15752. [2022-03-15 13:43:36,657 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) [2022-03-15 13:43:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43473 transitions. [2022-03-15 13:43:36,689 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43473 transitions. Word has length 227 [2022-03-15 13:43:36,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:36,689 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43473 transitions. [2022-03-15 13:43:36,689 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) [2022-03-15 13:43:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43473 transitions. [2022-03-15 13:43:36,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:36,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:36,712 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] [2022-03-15 13:43:36,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-15 13:43:36,712 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:36,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:36,713 INFO L85 PathProgramCache]: Analyzing trace with hash 68660303, now seen corresponding path program 6 times [2022-03-15 13:43:36,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:36,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321254535] [2022-03-15 13:43:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:36,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:36,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:36,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321254535] [2022-03-15 13:43:36,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321254535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:36,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:36,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:36,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613468519] [2022-03-15 13:43:36,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:36,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:36,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:36,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:36,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:36,817 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) [2022-03-15 13:43:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:37,116 INFO L93 Difference]: Finished difference Result 16377 states and 44945 transitions. [2022-03-15 13:43:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:37,117 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 [2022-03-15 13:43:37,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:37,147 INFO L225 Difference]: With dead ends: 16377 [2022-03-15 13:43:37,148 INFO L226 Difference]: Without dead ends: 15950 [2022-03-15 13:43:37,148 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 [2022-03-15 13:43:37,148 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 [2022-03-15 13:43:37,148 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] [2022-03-15 13:43:37,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15950 states. [2022-03-15 13:43:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15950 to 15496. [2022-03-15 13:43:37,364 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) [2022-03-15 13:43:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42769 transitions. [2022-03-15 13:43:37,498 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42769 transitions. Word has length 227 [2022-03-15 13:43:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:37,498 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42769 transitions. [2022-03-15 13:43:37,498 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) [2022-03-15 13:43:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42769 transitions. [2022-03-15 13:43:37,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:37,520 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:37,520 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] [2022-03-15 13:43:37,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-15 13:43:37,521 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:37,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1813371657, now seen corresponding path program 7 times [2022-03-15 13:43:37,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:37,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850037009] [2022-03-15 13:43:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:37,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:37,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:37,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850037009] [2022-03-15 13:43:37,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850037009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:37,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:37,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:37,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272621902] [2022-03-15 13:43:37,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:37,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:37,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:37,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:37,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:37,622 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) [2022-03-15 13:43:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:37,861 INFO L93 Difference]: Finished difference Result 15947 states and 43862 transitions. [2022-03-15 13:43:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:37,861 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 [2022-03-15 13:43:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:37,892 INFO L225 Difference]: With dead ends: 15947 [2022-03-15 13:43:37,892 INFO L226 Difference]: Without dead ends: 15729 [2022-03-15 13:43:37,892 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 [2022-03-15 13:43:37,892 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 [2022-03-15 13:43:37,892 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] [2022-03-15 13:43:37,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15729 states. [2022-03-15 13:43:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15729 to 15464. [2022-03-15 13:43:38,160 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) [2022-03-15 13:43:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42709 transitions. [2022-03-15 13:43:38,194 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42709 transitions. Word has length 227 [2022-03-15 13:43:38,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:38,194 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42709 transitions. [2022-03-15 13:43:38,194 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) [2022-03-15 13:43:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42709 transitions. [2022-03-15 13:43:38,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:38,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:38,218 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] [2022-03-15 13:43:38,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-15 13:43:38,219 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:38,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash 36395847, now seen corresponding path program 8 times [2022-03-15 13:43:38,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:38,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827715672] [2022-03-15 13:43:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:38,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:38,321 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:38,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:38,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827715672] [2022-03-15 13:43:38,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827715672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:38,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:38,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:38,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706628944] [2022-03-15 13:43:38,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:38,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:38,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:38,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:38,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:38,323 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) [2022-03-15 13:43:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:38,646 INFO L93 Difference]: Finished difference Result 16347 states and 44848 transitions. [2022-03-15 13:43:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:38,647 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 [2022-03-15 13:43:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:38,676 INFO L225 Difference]: With dead ends: 16347 [2022-03-15 13:43:38,676 INFO L226 Difference]: Without dead ends: 16200 [2022-03-15 13:43:38,677 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 [2022-03-15 13:43:38,677 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 [2022-03-15 13:43:38,677 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] [2022-03-15 13:43:38,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16200 states. [2022-03-15 13:43:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16200 to 15752. [2022-03-15 13:43:38,916 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) [2022-03-15 13:43:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-03-15 13:43:38,951 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-03-15 13:43:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:38,951 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-03-15 13:43:38,951 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) [2022-03-15 13:43:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-03-15 13:43:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:38,976 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:38,976 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] [2022-03-15 13:43:38,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-15 13:43:38,976 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:38,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:38,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1052324899, now seen corresponding path program 9 times [2022-03-15 13:43:38,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:38,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167687302] [2022-03-15 13:43:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:38,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:39,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:39,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167687302] [2022-03-15 13:43:39,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167687302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:39,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:39,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:39,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082389960] [2022-03-15 13:43:39,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:39,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:39,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:39,070 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) [2022-03-15 13:43:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:39,335 INFO L93 Difference]: Finished difference Result 16197 states and 44485 transitions. [2022-03-15 13:43:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:39,336 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 [2022-03-15 13:43:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:39,364 INFO L225 Difference]: With dead ends: 16197 [2022-03-15 13:43:39,365 INFO L226 Difference]: Without dead ends: 15770 [2022-03-15 13:43:39,365 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 [2022-03-15 13:43:39,365 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 [2022-03-15 13:43:39,365 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] [2022-03-15 13:43:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15770 states. [2022-03-15 13:43:39,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15770 to 15496. [2022-03-15 13:43:39,592 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) [2022-03-15 13:43:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-03-15 13:43:39,626 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-03-15 13:43:39,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:39,626 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-03-15 13:43:39,626 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) [2022-03-15 13:43:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-03-15 13:43:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:39,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:39,650 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] [2022-03-15 13:43:39,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-15 13:43:39,650 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:39,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1582029633, now seen corresponding path program 10 times [2022-03-15 13:43:39,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:39,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95869313] [2022-03-15 13:43:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:39,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:39,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:39,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95869313] [2022-03-15 13:43:39,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95869313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:39,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:39,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:39,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699634358] [2022-03-15 13:43:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:39,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:39,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:39,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:39,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:39,798 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) [2022-03-15 13:43:40,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:40,020 INFO L93 Difference]: Finished difference Result 15767 states and 43402 transitions. [2022-03-15 13:43:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:40,020 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 [2022-03-15 13:43:40,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:40,050 INFO L225 Difference]: With dead ends: 15767 [2022-03-15 13:43:40,050 INFO L226 Difference]: Without dead ends: 15568 [2022-03-15 13:43:40,050 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 [2022-03-15 13:43:40,051 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 [2022-03-15 13:43:40,051 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] [2022-03-15 13:43:40,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15568 states. [2022-03-15 13:43:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15568 to 15456. [2022-03-15 13:43:40,278 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) [2022-03-15 13:43:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 42687 transitions. [2022-03-15 13:43:40,311 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 42687 transitions. Word has length 227 [2022-03-15 13:43:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:40,311 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 42687 transitions. [2022-03-15 13:43:40,311 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) [2022-03-15 13:43:40,311 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 42687 transitions. [2022-03-15 13:43:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:40,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:40,335 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] [2022-03-15 13:43:40,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-15 13:43:40,335 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:40,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1902779655, now seen corresponding path program 11 times [2022-03-15 13:43:40,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:40,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591404537] [2022-03-15 13:43:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:40,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:40,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591404537] [2022-03-15 13:43:40,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591404537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:40,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:40,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:40,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496334597] [2022-03-15 13:43:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:40,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:40,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:40,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:40,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:40,455 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) [2022-03-15 13:43:40,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:40,761 INFO L93 Difference]: Finished difference Result 16365 states and 44958 transitions. [2022-03-15 13:43:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:43:40,762 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 [2022-03-15 13:43:40,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:40,793 INFO L225 Difference]: With dead ends: 16365 [2022-03-15 13:43:40,793 INFO L226 Difference]: Without dead ends: 16218 [2022-03-15 13:43:40,793 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 [2022-03-15 13:43:40,794 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 [2022-03-15 13:43:40,794 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] [2022-03-15 13:43:40,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16218 states. [2022-03-15 13:43:41,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16218 to 15752. [2022-03-15 13:43:41,029 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) [2022-03-15 13:43:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-03-15 13:43:41,063 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-03-15 13:43:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:41,064 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-03-15 13:43:41,064 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) [2022-03-15 13:43:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-03-15 13:43:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:41,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:41,091 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] [2022-03-15 13:43:41,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-15 13:43:41,091 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:41,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1303466895, now seen corresponding path program 12 times [2022-03-15 13:43:41,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:41,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354260586] [2022-03-15 13:43:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:41,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:41,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:41,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354260586] [2022-03-15 13:43:41,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354260586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:41,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:41,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:41,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241381314] [2022-03-15 13:43:41,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:41,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:41,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:41,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:41,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:41,195 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) [2022-03-15 13:43:41,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:41,475 INFO L93 Difference]: Finished difference Result 16389 states and 44974 transitions. [2022-03-15 13:43:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:43:41,475 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 [2022-03-15 13:43:41,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:41,506 INFO L225 Difference]: With dead ends: 16389 [2022-03-15 13:43:41,506 INFO L226 Difference]: Without dead ends: 15962 [2022-03-15 13:43:41,506 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 [2022-03-15 13:43:41,506 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 [2022-03-15 13:43:41,506 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] [2022-03-15 13:43:41,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-03-15 13:43:41,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 15496. [2022-03-15 13:43:41,747 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) [2022-03-15 13:43:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-03-15 13:43:41,780 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-03-15 13:43:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:41,781 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-03-15 13:43:41,781 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) [2022-03-15 13:43:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-03-15 13:43:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:41,804 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:41,804 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] [2022-03-15 13:43:41,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-15 13:43:41,805 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:41,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:41,805 INFO L85 PathProgramCache]: Analyzing trace with hash -578565065, now seen corresponding path program 13 times [2022-03-15 13:43:41,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:41,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264675310] [2022-03-15 13:43:41,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:41,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:41,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:41,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264675310] [2022-03-15 13:43:41,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264675310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:41,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:41,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:41,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691321474] [2022-03-15 13:43:41,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:41,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:41,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:41,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:41,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:41,905 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) [2022-03-15 13:43:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:42,116 INFO L93 Difference]: Finished difference Result 15959 states and 43891 transitions. [2022-03-15 13:43:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:42,116 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 [2022-03-15 13:43:42,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:42,146 INFO L225 Difference]: With dead ends: 15959 [2022-03-15 13:43:42,147 INFO L226 Difference]: Without dead ends: 15741 [2022-03-15 13:43:42,147 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 [2022-03-15 13:43:42,147 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 [2022-03-15 13:43:42,147 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] [2022-03-15 13:43:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15741 states. [2022-03-15 13:43:42,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15741 to 15464. [2022-03-15 13:43:42,409 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) [2022-03-15 13:43:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42705 transitions. [2022-03-15 13:43:42,441 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42705 transitions. Word has length 227 [2022-03-15 13:43:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:42,441 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42705 transitions. [2022-03-15 13:43:42,441 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) [2022-03-15 13:43:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42705 transitions. [2022-03-15 13:43:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:42,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:42,463 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] [2022-03-15 13:43:42,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-15 13:43:42,464 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:42,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1271202439, now seen corresponding path program 14 times [2022-03-15 13:43:42,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:42,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149423839] [2022-03-15 13:43:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:42,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:42,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:42,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149423839] [2022-03-15 13:43:42,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149423839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:42,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:42,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:42,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737758991] [2022-03-15 13:43:42,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:42,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:42,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:42,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:42,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:42,583 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) [2022-03-15 13:43:42,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:42,910 INFO L93 Difference]: Finished difference Result 16443 states and 45108 transitions. [2022-03-15 13:43:42,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:43:42,910 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 [2022-03-15 13:43:42,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:42,941 INFO L225 Difference]: With dead ends: 16443 [2022-03-15 13:43:42,941 INFO L226 Difference]: Without dead ends: 16296 [2022-03-15 13:43:42,942 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 [2022-03-15 13:43:42,942 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 [2022-03-15 13:43:42,942 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] [2022-03-15 13:43:42,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-03-15 13:43:43,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 15752. [2022-03-15 13:43:43,181 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) [2022-03-15 13:43:43,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43465 transitions. [2022-03-15 13:43:43,214 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43465 transitions. Word has length 227 [2022-03-15 13:43:43,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:43,214 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43465 transitions. [2022-03-15 13:43:43,214 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) [2022-03-15 13:43:43,214 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43465 transitions. [2022-03-15 13:43:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:43,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:43,238 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] [2022-03-15 13:43:43,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-15 13:43:43,238 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:43,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:43,239 INFO L85 PathProgramCache]: Analyzing trace with hash 182481693, now seen corresponding path program 15 times [2022-03-15 13:43:43,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:43,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676977361] [2022-03-15 13:43:43,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:43,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:43,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:43,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676977361] [2022-03-15 13:43:43,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676977361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:43,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:43,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:43,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73809670] [2022-03-15 13:43:43,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:43,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:43,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:43,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:43,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:43,343 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) [2022-03-15 13:43:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:43,614 INFO L93 Difference]: Finished difference Result 16293 states and 44745 transitions. [2022-03-15 13:43:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:43,615 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 [2022-03-15 13:43:43,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:43,647 INFO L225 Difference]: With dead ends: 16293 [2022-03-15 13:43:43,647 INFO L226 Difference]: Without dead ends: 15866 [2022-03-15 13:43:43,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:43:43,647 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 [2022-03-15 13:43:43,647 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] [2022-03-15 13:43:43,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15866 states. [2022-03-15 13:43:43,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15866 to 15496. [2022-03-15 13:43:43,871 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) [2022-03-15 13:43:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42761 transitions. [2022-03-15 13:43:43,905 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42761 transitions. Word has length 227 [2022-03-15 13:43:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:43,905 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42761 transitions. [2022-03-15 13:43:43,905 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) [2022-03-15 13:43:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42761 transitions. [2022-03-15 13:43:43,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:43,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:43,929 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] [2022-03-15 13:43:43,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-15 13:43:43,929 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:43,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:43,930 INFO L85 PathProgramCache]: Analyzing trace with hash -347223041, now seen corresponding path program 16 times [2022-03-15 13:43:43,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:43,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782298794] [2022-03-15 13:43:43,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:43,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:44,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:44,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782298794] [2022-03-15 13:43:44,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782298794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:44,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:44,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:44,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999092016] [2022-03-15 13:43:44,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:44,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:44,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:44,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:44,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:44,040 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) [2022-03-15 13:43:44,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:44,269 INFO L93 Difference]: Finished difference Result 15863 states and 43662 transitions. [2022-03-15 13:43:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:44,269 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 [2022-03-15 13:43:44,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:44,300 INFO L225 Difference]: With dead ends: 15863 [2022-03-15 13:43:44,300 INFO L226 Difference]: Without dead ends: 15668 [2022-03-15 13:43:44,301 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 [2022-03-15 13:43:44,301 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 [2022-03-15 13:43:44,301 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] [2022-03-15 13:43:44,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2022-03-15 13:43:44,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 15460. [2022-03-15 13:43:44,596 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) [2022-03-15 13:43:44,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42694 transitions. [2022-03-15 13:43:44,629 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42694 transitions. Word has length 227 [2022-03-15 13:43:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:44,632 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42694 transitions. [2022-03-15 13:43:44,632 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) [2022-03-15 13:43:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42694 transitions. [2022-03-15 13:43:44,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:44,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:44,657 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] [2022-03-15 13:43:44,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-15 13:43:44,657 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:44,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:44,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1496021797, now seen corresponding path program 17 times [2022-03-15 13:43:44,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:44,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632730389] [2022-03-15 13:43:44,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:44,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:44,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:44,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632730389] [2022-03-15 13:43:44,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632730389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:44,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:44,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:44,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776273154] [2022-03-15 13:43:44,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:44,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:44,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:44,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:44,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:44,766 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) [2022-03-15 13:43:45,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:45,064 INFO L93 Difference]: Finished difference Result 16387 states and 44950 transitions. [2022-03-15 13:43:45,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:45,065 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 [2022-03-15 13:43:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:45,097 INFO L225 Difference]: With dead ends: 16387 [2022-03-15 13:43:45,098 INFO L226 Difference]: Without dead ends: 16240 [2022-03-15 13:43:45,098 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 [2022-03-15 13:43:45,098 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 [2022-03-15 13:43:45,098 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] [2022-03-15 13:43:45,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16240 states. [2022-03-15 13:43:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16240 to 15780. [2022-03-15 13:43:45,339 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) [2022-03-15 13:43:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15780 states to 15780 states and 43542 transitions. [2022-03-15 13:43:45,374 INFO L78 Accepts]: Start accepts. Automaton has 15780 states and 43542 transitions. Word has length 227 [2022-03-15 13:43:45,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:45,374 INFO L470 AbstractCegarLoop]: Abstraction has 15780 states and 43542 transitions. [2022-03-15 13:43:45,374 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) [2022-03-15 13:43:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 15780 states and 43542 transitions. [2022-03-15 13:43:45,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:45,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:45,399 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] [2022-03-15 13:43:45,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-15 13:43:45,400 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:45,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:45,400 INFO L85 PathProgramCache]: Analyzing trace with hash 407301051, now seen corresponding path program 18 times [2022-03-15 13:43:45,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:45,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262802713] [2022-03-15 13:43:45,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:45,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:45,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:45,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262802713] [2022-03-15 13:43:45,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262802713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:45,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:45,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:45,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227713317] [2022-03-15 13:43:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:45,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:45,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:45,501 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) [2022-03-15 13:43:45,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:45,764 INFO L93 Difference]: Finished difference Result 16237 states and 44587 transitions. [2022-03-15 13:43:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:45,764 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 [2022-03-15 13:43:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:45,795 INFO L225 Difference]: With dead ends: 16237 [2022-03-15 13:43:45,795 INFO L226 Difference]: Without dead ends: 15810 [2022-03-15 13:43:45,795 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 [2022-03-15 13:43:45,796 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 [2022-03-15 13:43:45,796 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] [2022-03-15 13:43:45,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15810 states. [2022-03-15 13:43:45,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15810 to 15524. [2022-03-15 13:43:46,019 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) [2022-03-15 13:43:46,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15524 states to 15524 states and 42838 transitions. [2022-03-15 13:43:46,054 INFO L78 Accepts]: Start accepts. Automaton has 15524 states and 42838 transitions. Word has length 227 [2022-03-15 13:43:46,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:46,054 INFO L470 AbstractCegarLoop]: Abstraction has 15524 states and 42838 transitions. [2022-03-15 13:43:46,054 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) [2022-03-15 13:43:46,055 INFO L276 IsEmpty]: Start isEmpty. Operand 15524 states and 42838 transitions. [2022-03-15 13:43:46,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:46,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:46,079 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] [2022-03-15 13:43:46,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-15 13:43:46,079 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:46,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:46,079 INFO L85 PathProgramCache]: Analyzing trace with hash -122403683, now seen corresponding path program 19 times [2022-03-15 13:43:46,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:46,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029892648] [2022-03-15 13:43:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:46,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:46,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:46,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029892648] [2022-03-15 13:43:46,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029892648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:46,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:46,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:46,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219532591] [2022-03-15 13:43:46,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:46,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:46,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:46,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:46,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:46,194 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) [2022-03-15 13:43:46,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:46,432 INFO L93 Difference]: Finished difference Result 15891 states and 43707 transitions. [2022-03-15 13:43:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:46,432 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 [2022-03-15 13:43:46,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:46,466 INFO L225 Difference]: With dead ends: 15891 [2022-03-15 13:43:46,466 INFO L226 Difference]: Without dead ends: 15700 [2022-03-15 13:43:46,466 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 [2022-03-15 13:43:46,466 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 [2022-03-15 13:43:46,467 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] [2022-03-15 13:43:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2022-03-15 13:43:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 15492. [2022-03-15 13:43:46,710 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) [2022-03-15 13:43:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 42750 transitions. [2022-03-15 13:43:46,746 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 42750 transitions. Word has length 227 [2022-03-15 13:43:46,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:46,747 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 42750 transitions. [2022-03-15 13:43:46,747 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) [2022-03-15 13:43:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 42750 transitions. [2022-03-15 13:43:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:46,820 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:46,821 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] [2022-03-15 13:43:46,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-15 13:43:46,821 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:46,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:46,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1310251565, now seen corresponding path program 20 times [2022-03-15 13:43:46,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:46,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777806650] [2022-03-15 13:43:46,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:46,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:46,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:46,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777806650] [2022-03-15 13:43:46,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777806650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:46,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:46,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:46,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533387118] [2022-03-15 13:43:46,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:46,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:46,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:46,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:46,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:46,936 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) [2022-03-15 13:43:47,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:47,145 INFO L93 Difference]: Finished difference Result 15775 states and 43416 transitions. [2022-03-15 13:43:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:47,145 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 [2022-03-15 13:43:47,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:47,176 INFO L225 Difference]: With dead ends: 15775 [2022-03-15 13:43:47,176 INFO L226 Difference]: Without dead ends: 15564 [2022-03-15 13:43:47,177 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 [2022-03-15 13:43:47,177 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 [2022-03-15 13:43:47,177 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] [2022-03-15 13:43:47,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15564 states. [2022-03-15 13:43:47,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15564 to 15452. [2022-03-15 13:43:47,396 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) [2022-03-15 13:43:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 42672 transitions. [2022-03-15 13:43:47,428 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 42672 transitions. Word has length 227 [2022-03-15 13:43:47,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:47,429 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 42672 transitions. [2022-03-15 13:43:47,429 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) [2022-03-15 13:43:47,429 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 42672 transitions. [2022-03-15 13:43:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:47,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:47,454 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] [2022-03-15 13:43:47,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-15 13:43:47,454 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:47,455 INFO L85 PathProgramCache]: Analyzing trace with hash 521564985, now seen corresponding path program 21 times [2022-03-15 13:43:47,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:47,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987187609] [2022-03-15 13:43:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:47,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:47,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:47,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987187609] [2022-03-15 13:43:47,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987187609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:47,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:47,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:47,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851409025] [2022-03-15 13:43:47,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:47,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:47,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:47,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:47,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:47,562 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) [2022-03-15 13:43:47,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:47,839 INFO L93 Difference]: Finished difference Result 16029 states and 44083 transitions. [2022-03-15 13:43:47,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:47,839 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 [2022-03-15 13:43:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:47,868 INFO L225 Difference]: With dead ends: 16029 [2022-03-15 13:43:47,868 INFO L226 Difference]: Without dead ends: 15882 [2022-03-15 13:43:47,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:43:47,869 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 [2022-03-15 13:43:47,869 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] [2022-03-15 13:43:47,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15882 states. [2022-03-15 13:43:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15882 to 15693. [2022-03-15 13:43:48,104 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) [2022-03-15 13:43:48,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43309 transitions. [2022-03-15 13:43:48,136 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43309 transitions. Word has length 227 [2022-03-15 13:43:48,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:48,136 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43309 transitions. [2022-03-15 13:43:48,136 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) [2022-03-15 13:43:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43309 transitions. [2022-03-15 13:43:48,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:48,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:48,159 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] [2022-03-15 13:43:48,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-15 13:43:48,159 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:48,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash -567155761, now seen corresponding path program 22 times [2022-03-15 13:43:48,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:48,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857048270] [2022-03-15 13:43:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:48,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:48,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:48,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857048270] [2022-03-15 13:43:48,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857048270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:48,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:48,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:48,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116240433] [2022-03-15 13:43:48,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:48,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:48,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:48,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:48,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:48,261 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) [2022-03-15 13:43:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:48,541 INFO L93 Difference]: Finished difference Result 16053 states and 44099 transitions. [2022-03-15 13:43:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:48,541 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 [2022-03-15 13:43:48,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:48,571 INFO L225 Difference]: With dead ends: 16053 [2022-03-15 13:43:48,571 INFO L226 Difference]: Without dead ends: 15626 [2022-03-15 13:43:48,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:43:48,571 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 [2022-03-15 13:43:48,571 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] [2022-03-15 13:43:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15626 states. [2022-03-15 13:43:48,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15626 to 15437. [2022-03-15 13:43:48,807 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) [2022-03-15 13:43:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42605 transitions. [2022-03-15 13:43:48,841 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42605 transitions. Word has length 227 [2022-03-15 13:43:48,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:48,843 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42605 transitions. [2022-03-15 13:43:48,843 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) [2022-03-15 13:43:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42605 transitions. [2022-03-15 13:43:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:48,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:48,867 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] [2022-03-15 13:43:48,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-15 13:43:48,867 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:48,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1845779575, now seen corresponding path program 23 times [2022-03-15 13:43:48,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:48,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828613994] [2022-03-15 13:43:48,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:48,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:48,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:48,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828613994] [2022-03-15 13:43:48,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828613994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:48,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:48,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:48,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864049261] [2022-03-15 13:43:48,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:48,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:48,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:48,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:48,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:48,972 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) [2022-03-15 13:43:49,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:49,258 INFO L93 Difference]: Finished difference Result 15623 states and 43016 transitions. [2022-03-15 13:43:49,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:49,258 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 [2022-03-15 13:43:49,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:49,284 INFO L225 Difference]: With dead ends: 15623 [2022-03-15 13:43:49,284 INFO L226 Difference]: Without dead ends: 15405 [2022-03-15 13:43:49,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-03-15 13:43:49,285 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 [2022-03-15 13:43:49,285 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] [2022-03-15 13:43:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15405 states. [2022-03-15 13:43:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15405 to 15405. [2022-03-15 13:43:49,484 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) [2022-03-15 13:43:49,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15405 states to 15405 states and 42545 transitions. [2022-03-15 13:43:49,518 INFO L78 Accepts]: Start accepts. Automaton has 15405 states and 42545 transitions. Word has length 227 [2022-03-15 13:43:49,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:49,518 INFO L470 AbstractCegarLoop]: Abstraction has 15405 states and 42545 transitions. [2022-03-15 13:43:49,518 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) [2022-03-15 13:43:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 15405 states and 42545 transitions. [2022-03-15 13:43:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:49,542 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:49,542 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] [2022-03-15 13:43:49,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-15 13:43:49,542 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:49,543 INFO L85 PathProgramCache]: Analyzing trace with hash -599420217, now seen corresponding path program 24 times [2022-03-15 13:43:49,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:49,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561127861] [2022-03-15 13:43:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:49,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:49,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:49,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561127861] [2022-03-15 13:43:49,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561127861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:49,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:49,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:49,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087007615] [2022-03-15 13:43:49,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:49,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:49,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:49,649 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) [2022-03-15 13:43:49,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:49,939 INFO L93 Difference]: Finished difference Result 16176 states and 44404 transitions. [2022-03-15 13:43:49,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:49,939 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 [2022-03-15 13:43:49,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:49,969 INFO L225 Difference]: With dead ends: 16176 [2022-03-15 13:43:49,970 INFO L226 Difference]: Without dead ends: 16029 [2022-03-15 13:43:49,970 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 [2022-03-15 13:43:49,970 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 [2022-03-15 13:43:49,970 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] [2022-03-15 13:43:49,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16029 states. [2022-03-15 13:43:50,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16029 to 15693. [2022-03-15 13:43:50,209 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) [2022-03-15 13:43:50,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43305 transitions. [2022-03-15 13:43:50,244 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43305 transitions. Word has length 227 [2022-03-15 13:43:50,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:50,245 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43305 transitions. [2022-03-15 13:43:50,245 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) [2022-03-15 13:43:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43305 transitions. [2022-03-15 13:43:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:50,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:50,269 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] [2022-03-15 13:43:50,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-15 13:43:50,269 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:50,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1688140963, now seen corresponding path program 25 times [2022-03-15 13:43:50,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:50,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551198729] [2022-03-15 13:43:50,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:50,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:50,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:50,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551198729] [2022-03-15 13:43:50,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551198729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:50,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:50,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:50,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303914337] [2022-03-15 13:43:50,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:50,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:50,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:50,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:50,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:50,368 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) [2022-03-15 13:43:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:50,643 INFO L93 Difference]: Finished difference Result 16026 states and 44041 transitions. [2022-03-15 13:43:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:43:50,643 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 [2022-03-15 13:43:50,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:50,673 INFO L225 Difference]: With dead ends: 16026 [2022-03-15 13:43:50,673 INFO L226 Difference]: Without dead ends: 15599 [2022-03-15 13:43:50,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:43:50,674 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 [2022-03-15 13:43:50,674 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] [2022-03-15 13:43:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2022-03-15 13:43:50,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 15437. [2022-03-15 13:43:50,903 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) [2022-03-15 13:43:50,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42601 transitions. [2022-03-15 13:43:50,937 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42601 transitions. Word has length 227 [2022-03-15 13:43:50,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:50,937 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42601 transitions. [2022-03-15 13:43:50,937 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) [2022-03-15 13:43:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42601 transitions. [2022-03-15 13:43:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:50,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:50,961 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] [2022-03-15 13:43:50,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-15 13:43:50,961 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:50,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2077121599, now seen corresponding path program 26 times [2022-03-15 13:43:50,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:50,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020399225] [2022-03-15 13:43:50,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:50,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:51,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:51,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020399225] [2022-03-15 13:43:51,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020399225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:51,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:51,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:51,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821599313] [2022-03-15 13:43:51,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:51,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:51,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:51,074 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) [2022-03-15 13:43:51,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:51,286 INFO L93 Difference]: Finished difference Result 15596 states and 42958 transitions. [2022-03-15 13:43:51,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:43:51,286 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 [2022-03-15 13:43:51,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:51,315 INFO L225 Difference]: With dead ends: 15596 [2022-03-15 13:43:51,315 INFO L226 Difference]: Without dead ends: 15401 [2022-03-15 13:43:51,316 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 [2022-03-15 13:43:51,316 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 [2022-03-15 13:43:51,316 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] [2022-03-15 13:43:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2022-03-15 13:43:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 15401. [2022-03-15 13:43:51,573 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) [2022-03-15 13:43:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15401 states to 15401 states and 42534 transitions. [2022-03-15 13:43:51,606 INFO L78 Accepts]: Start accepts. Automaton has 15401 states and 42534 transitions. Word has length 227 [2022-03-15 13:43:51,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:51,606 INFO L470 AbstractCegarLoop]: Abstraction has 15401 states and 42534 transitions. [2022-03-15 13:43:51,606 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) [2022-03-15 13:43:51,606 INFO L276 IsEmpty]: Start isEmpty. Operand 15401 states and 42534 transitions. [2022-03-15 13:43:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:51,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:51,629 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] [2022-03-15 13:43:51,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-15 13:43:51,629 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:51,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:51,630 INFO L85 PathProgramCache]: Analyzing trace with hash -374600859, now seen corresponding path program 27 times [2022-03-15 13:43:51,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:51,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654891084] [2022-03-15 13:43:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:51,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:51,735 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:51,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:51,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654891084] [2022-03-15 13:43:51,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654891084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:51,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:51,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:51,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706911005] [2022-03-15 13:43:51,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:51,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:51,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:51,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:51,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:51,736 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) [2022-03-15 13:43:52,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:52,070 INFO L93 Difference]: Finished difference Result 16216 states and 44510 transitions. [2022-03-15 13:43:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:43:52,070 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 [2022-03-15 13:43:52,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:52,102 INFO L225 Difference]: With dead ends: 16216 [2022-03-15 13:43:52,102 INFO L226 Difference]: Without dead ends: 16069 [2022-03-15 13:43:52,102 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 [2022-03-15 13:43:52,102 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 [2022-03-15 13:43:52,102 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] [2022-03-15 13:43:52,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16069 states. [2022-03-15 13:43:52,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16069 to 15721. [2022-03-15 13:43:52,331 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) [2022-03-15 13:43:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15721 states to 15721 states and 43382 transitions. [2022-03-15 13:43:52,364 INFO L78 Accepts]: Start accepts. Automaton has 15721 states and 43382 transitions. Word has length 227 [2022-03-15 13:43:52,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:52,364 INFO L470 AbstractCegarLoop]: Abstraction has 15721 states and 43382 transitions. [2022-03-15 13:43:52,365 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) [2022-03-15 13:43:52,365 INFO L276 IsEmpty]: Start isEmpty. Operand 15721 states and 43382 transitions. [2022-03-15 13:43:52,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:52,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:52,388 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] [2022-03-15 13:43:52,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-15 13:43:52,388 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:52,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1463321605, now seen corresponding path program 28 times [2022-03-15 13:43:52,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:52,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176921156] [2022-03-15 13:43:52,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:52,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:52,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:52,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176921156] [2022-03-15 13:43:52,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176921156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:52,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:52,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:52,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240592357] [2022-03-15 13:43:52,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:52,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:52,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:52,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:52,495 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) [2022-03-15 13:43:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:52,783 INFO L93 Difference]: Finished difference Result 16066 states and 44147 transitions. [2022-03-15 13:43:52,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 13:43:52,783 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 [2022-03-15 13:43:52,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:52,813 INFO L225 Difference]: With dead ends: 16066 [2022-03-15 13:43:52,814 INFO L226 Difference]: Without dead ends: 15639 [2022-03-15 13:43:52,814 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 [2022-03-15 13:43:52,814 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 [2022-03-15 13:43:52,814 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] [2022-03-15 13:43:52,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15639 states. [2022-03-15 13:43:53,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15639 to 15465. [2022-03-15 13:43:53,043 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) [2022-03-15 13:43:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15465 states to 15465 states and 42678 transitions. [2022-03-15 13:43:53,077 INFO L78 Accepts]: Start accepts. Automaton has 15465 states and 42678 transitions. Word has length 227 [2022-03-15 13:43:53,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:53,077 INFO L470 AbstractCegarLoop]: Abstraction has 15465 states and 42678 transitions. [2022-03-15 13:43:53,077 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) [2022-03-15 13:43:53,077 INFO L276 IsEmpty]: Start isEmpty. Operand 15465 states and 42678 transitions. [2022-03-15 13:43:53,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:53,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:53,101 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] [2022-03-15 13:43:53,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-15 13:43:53,101 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:53,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:53,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1993026339, now seen corresponding path program 29 times [2022-03-15 13:43:53,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:53,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069071273] [2022-03-15 13:43:53,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:53,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:53,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:53,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069071273] [2022-03-15 13:43:53,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069071273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:53,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:53,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:53,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354320667] [2022-03-15 13:43:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:53,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:53,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:53,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:53,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:53,211 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) [2022-03-15 13:43:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:53,458 INFO L93 Difference]: Finished difference Result 15720 states and 43267 transitions. [2022-03-15 13:43:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:53,458 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 [2022-03-15 13:43:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:53,488 INFO L225 Difference]: With dead ends: 15720 [2022-03-15 13:43:53,488 INFO L226 Difference]: Without dead ends: 15529 [2022-03-15 13:43:53,488 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 [2022-03-15 13:43:53,489 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 [2022-03-15 13:43:53,489 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] [2022-03-15 13:43:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2022-03-15 13:43:53,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 15433. [2022-03-15 13:43:53,721 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) [2022-03-15 13:43:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15433 states to 15433 states and 42590 transitions. [2022-03-15 13:43:53,755 INFO L78 Accepts]: Start accepts. Automaton has 15433 states and 42590 transitions. Word has length 227 [2022-03-15 13:43:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:53,756 INFO L470 AbstractCegarLoop]: Abstraction has 15433 states and 42590 transitions. [2022-03-15 13:43:53,756 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) [2022-03-15 13:43:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 15433 states and 42590 transitions. [2022-03-15 13:43:53,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:53,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:53,821 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] [2022-03-15 13:43:53,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-15 13:43:53,821 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:53,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:53,821 INFO L85 PathProgramCache]: Analyzing trace with hash -560371091, now seen corresponding path program 30 times [2022-03-15 13:43:53,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:53,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217641217] [2022-03-15 13:43:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:53,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:53,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:53,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217641217] [2022-03-15 13:43:53,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217641217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:53,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:53,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:53,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231783347] [2022-03-15 13:43:53,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:53,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:53,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:53,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:53,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:53,942 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) [2022-03-15 13:43:54,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:54,171 INFO L93 Difference]: Finished difference Result 15604 states and 42976 transitions. [2022-03-15 13:43:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:54,171 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 [2022-03-15 13:43:54,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:54,200 INFO L225 Difference]: With dead ends: 15604 [2022-03-15 13:43:54,200 INFO L226 Difference]: Without dead ends: 15397 [2022-03-15 13:43:54,200 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 [2022-03-15 13:43:54,200 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 [2022-03-15 13:43:54,200 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] [2022-03-15 13:43:54,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15397 states. [2022-03-15 13:43:54,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15397 to 15397. [2022-03-15 13:43:54,423 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) [2022-03-15 13:43:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15397 states to 15397 states and 42523 transitions. [2022-03-15 13:43:54,456 INFO L78 Accepts]: Start accepts. Automaton has 15397 states and 42523 transitions. Word has length 227 [2022-03-15 13:43:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:54,456 INFO L470 AbstractCegarLoop]: Abstraction has 15397 states and 42523 transitions. [2022-03-15 13:43:54,456 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) [2022-03-15 13:43:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 15397 states and 42523 transitions. [2022-03-15 13:43:54,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:54,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:54,480 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] [2022-03-15 13:43:54,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-15 13:43:54,480 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:54,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash 875777767, now seen corresponding path program 31 times [2022-03-15 13:43:54,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:54,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495599027] [2022-03-15 13:43:54,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:54,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:54,584 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:54,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:54,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495599027] [2022-03-15 13:43:54,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495599027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:54,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:54,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:54,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366665669] [2022-03-15 13:43:54,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:54,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:54,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:54,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:54,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:54,585 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) [2022-03-15 13:43:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:54,903 INFO L93 Difference]: Finished difference Result 15456 states and 41855 transitions. [2022-03-15 13:43:54,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:43:54,903 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 [2022-03-15 13:43:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:54,931 INFO L225 Difference]: With dead ends: 15456 [2022-03-15 13:43:54,931 INFO L226 Difference]: Without dead ends: 15309 [2022-03-15 13:43:54,931 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 [2022-03-15 13:43:54,931 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 [2022-03-15 13:43:54,931 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] [2022-03-15 13:43:54,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15309 states. [2022-03-15 13:43:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15309 to 13797. [2022-03-15 13:43:55,139 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) [2022-03-15 13:43:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 37800 transitions. [2022-03-15 13:43:55,169 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 37800 transitions. Word has length 227 [2022-03-15 13:43:55,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:55,169 INFO L470 AbstractCegarLoop]: Abstraction has 13797 states and 37800 transitions. [2022-03-15 13:43:55,169 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) [2022-03-15 13:43:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 37800 transitions. [2022-03-15 13:43:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:55,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:55,189 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] [2022-03-15 13:43:55,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-15 13:43:55,190 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:55,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash -212942979, now seen corresponding path program 32 times [2022-03-15 13:43:55,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:55,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219489053] [2022-03-15 13:43:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:55,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:55,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:55,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219489053] [2022-03-15 13:43:55,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219489053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:55,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:55,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:55,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449643624] [2022-03-15 13:43:55,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:55,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:55,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:55,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:55,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:55,292 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) [2022-03-15 13:43:55,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:55,590 INFO L93 Difference]: Finished difference Result 15135 states and 41078 transitions. [2022-03-15 13:43:55,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:43:55,590 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 [2022-03-15 13:43:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:55,616 INFO L225 Difference]: With dead ends: 15135 [2022-03-15 13:43:55,616 INFO L226 Difference]: Without dead ends: 14708 [2022-03-15 13:43:55,616 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 [2022-03-15 13:43:55,616 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 [2022-03-15 13:43:55,616 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] [2022-03-15 13:43:55,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14708 states. [2022-03-15 13:43:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14708 to 13541. [2022-03-15 13:43:55,817 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) [2022-03-15 13:43:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 37096 transitions. [2022-03-15 13:43:55,845 INFO L78 Accepts]: Start accepts. Automaton has 13541 states and 37096 transitions. Word has length 227 [2022-03-15 13:43:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:55,845 INFO L470 AbstractCegarLoop]: Abstraction has 13541 states and 37096 transitions. [2022-03-15 13:43:55,846 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) [2022-03-15 13:43:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 13541 states and 37096 transitions. [2022-03-15 13:43:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:55,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:55,866 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] [2022-03-15 13:43:55,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-15 13:43:55,866 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:55,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:55,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1861767551, now seen corresponding path program 33 times [2022-03-15 13:43:55,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:55,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404380895] [2022-03-15 13:43:55,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:55,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:55,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:55,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404380895] [2022-03-15 13:43:55,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404380895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:55,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:55,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:55,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195140598] [2022-03-15 13:43:55,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:55,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:55,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:55,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:55,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:55,993 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) [2022-03-15 13:43:56,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:56,258 INFO L93 Difference]: Finished difference Result 14789 states and 40198 transitions. [2022-03-15 13:43:56,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:43:56,259 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 [2022-03-15 13:43:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:56,285 INFO L225 Difference]: With dead ends: 14789 [2022-03-15 13:43:56,285 INFO L226 Difference]: Without dead ends: 14598 [2022-03-15 13:43:56,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:43:56,285 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 [2022-03-15 13:43:56,285 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] [2022-03-15 13:43:56,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2022-03-15 13:43:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 13509. [2022-03-15 13:43:56,520 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) [2022-03-15 13:43:56,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 37008 transitions. [2022-03-15 13:43:56,548 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 37008 transitions. Word has length 227 [2022-03-15 13:43:56,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:56,549 INFO L470 AbstractCegarLoop]: Abstraction has 13509 states and 37008 transitions. [2022-03-15 13:43:56,549 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) [2022-03-15 13:43:56,549 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 37008 transitions. [2022-03-15 13:43:56,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:56,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:56,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:43:56,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-15 13:43:56,570 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:56,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:56,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1719428251, now seen corresponding path program 34 times [2022-03-15 13:43:56,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:56,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912625209] [2022-03-15 13:43:56,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:56,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:56,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:56,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912625209] [2022-03-15 13:43:56,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912625209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:56,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:56,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:56,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782416475] [2022-03-15 13:43:56,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:56,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:56,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:56,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:56,687 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) [2022-03-15 13:43:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:56,950 INFO L93 Difference]: Finished difference Result 14769 states and 40139 transitions. [2022-03-15 13:43:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 13:43:56,950 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 [2022-03-15 13:43:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:56,977 INFO L225 Difference]: With dead ends: 14769 [2022-03-15 13:43:56,977 INFO L226 Difference]: Without dead ends: 14566 [2022-03-15 13:43:56,977 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 [2022-03-15 13:43:56,977 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 [2022-03-15 13:43:56,977 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] [2022-03-15 13:43:56,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14566 states. [2022-03-15 13:43:57,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14566 to 13477. [2022-03-15 13:43:57,176 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) [2022-03-15 13:43:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13477 states to 13477 states and 36920 transitions. [2022-03-15 13:43:57,205 INFO L78 Accepts]: Start accepts. Automaton has 13477 states and 36920 transitions. Word has length 227 [2022-03-15 13:43:57,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:57,205 INFO L470 AbstractCegarLoop]: Abstraction has 13477 states and 36920 transitions. [2022-03-15 13:43:57,205 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) [2022-03-15 13:43:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13477 states and 36920 transitions. [2022-03-15 13:43:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:57,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:57,226 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] [2022-03-15 13:43:57,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-15 13:43:57,226 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:57,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:57,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1870981163, now seen corresponding path program 35 times [2022-03-15 13:43:57,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:57,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269628446] [2022-03-15 13:43:57,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:57,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:57,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:57,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269628446] [2022-03-15 13:43:57,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269628446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:57,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:57,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 13:43:57,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176009685] [2022-03-15 13:43:57,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:57,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 13:43:57,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:57,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 13:43:57,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-15 13:43:57,367 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) [2022-03-15 13:43:57,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:57,576 INFO L93 Difference]: Finished difference Result 14641 states and 39819 transitions. [2022-03-15 13:43:57,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 13:43:57,576 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 [2022-03-15 13:43:57,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:57,605 INFO L225 Difference]: With dead ends: 14641 [2022-03-15 13:43:57,605 INFO L226 Difference]: Without dead ends: 14418 [2022-03-15 13:43:57,605 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 [2022-03-15 13:43:57,605 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 [2022-03-15 13:43:57,605 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] [2022-03-15 13:43:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14418 states. [2022-03-15 13:43:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14418 to 13785. [2022-03-15 13:43:57,800 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) [2022-03-15 13:43:57,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 37683 transitions. [2022-03-15 13:43:57,831 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 37683 transitions. Word has length 227 [2022-03-15 13:43:57,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:57,831 INFO L470 AbstractCegarLoop]: Abstraction has 13785 states and 37683 transitions. [2022-03-15 13:43:57,831 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) [2022-03-15 13:43:57,831 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 37683 transitions. [2022-03-15 13:43:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 13:43:57,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:57,852 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] [2022-03-15 13:43:57,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-15 13:43:57,853 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:57,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1267834919, now seen corresponding path program 1 times [2022-03-15 13:43:57,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:57,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816034917] [2022-03-15 13:43:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:57,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:57,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:57,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816034917] [2022-03-15 13:43:57,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816034917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:43:57,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:43:57,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:43:57,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613383568] [2022-03-15 13:43:57,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:43:57,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:43:57,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:57,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:43:57,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:43:57,886 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) [2022-03-15 13:43:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:57,975 INFO L93 Difference]: Finished difference Result 16699 states and 45640 transitions. [2022-03-15 13:43:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:43:57,975 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 [2022-03-15 13:43:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:58,005 INFO L225 Difference]: With dead ends: 16699 [2022-03-15 13:43:58,005 INFO L226 Difference]: Without dead ends: 16699 [2022-03-15 13:43:58,005 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 [2022-03-15 13:43:58,006 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 [2022-03-15 13:43:58,006 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] [2022-03-15 13:43:58,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16699 states. [2022-03-15 13:43:58,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16699 to 13663. [2022-03-15 13:43:58,220 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) [2022-03-15 13:43:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13663 states to 13663 states and 37098 transitions. [2022-03-15 13:43:58,249 INFO L78 Accepts]: Start accepts. Automaton has 13663 states and 37098 transitions. Word has length 227 [2022-03-15 13:43:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:58,249 INFO L470 AbstractCegarLoop]: Abstraction has 13663 states and 37098 transitions. [2022-03-15 13:43:58,249 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) [2022-03-15 13:43:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 13663 states and 37098 transitions. [2022-03-15 13:43:58,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-15 13:43:58,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:58,269 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] [2022-03-15 13:43:58,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-15 13:43:58,269 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:43:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:43:58,270 INFO L85 PathProgramCache]: Analyzing trace with hash 501455919, now seen corresponding path program 1 times [2022-03-15 13:43:58,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:43:58,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211120975] [2022-03-15 13:43:58,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:58,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:43:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:58,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:43:58,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211120975] [2022-03-15 13:43:58,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211120975] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 13:43:58,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348013180] [2022-03-15 13:43:58,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:43:58,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:43:58,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:43:58,314 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) [2022-03-15 13:43:58,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 13:43:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:43:58,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-15 13:43:58,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 13:43:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:58,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 13:43:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:43:59,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348013180] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 13:43:59,155 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 13:43:59,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-03-15 13:43:59,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091823691] [2022-03-15 13:43:59,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 13:43:59,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:43:59,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:43:59,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:43:59,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:43:59,156 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) [2022-03-15 13:43:59,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:43:59,348 INFO L93 Difference]: Finished difference Result 31225 states and 85401 transitions. [2022-03-15 13:43:59,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:43:59,348 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 [2022-03-15 13:43:59,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:43:59,411 INFO L225 Difference]: With dead ends: 31225 [2022-03-15 13:43:59,411 INFO L226 Difference]: Without dead ends: 31225 [2022-03-15 13:43:59,411 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 [2022-03-15 13:43:59,411 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:43:59,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 1493 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:43:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2022-03-15 13:43:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 23355. [2022-03-15 13:43:59,857 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) [2022-03-15 13:43:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23355 states to 23355 states and 64197 transitions. [2022-03-15 13:43:59,907 INFO L78 Accepts]: Start accepts. Automaton has 23355 states and 64197 transitions. Word has length 230 [2022-03-15 13:43:59,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:43:59,908 INFO L470 AbstractCegarLoop]: Abstraction has 23355 states and 64197 transitions. [2022-03-15 13:43:59,908 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) [2022-03-15 13:43:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 23355 states and 64197 transitions. [2022-03-15 13:43:59,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-15 13:43:59,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:43:59,936 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] [2022-03-15 13:43:59,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 13:44:00,136 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 [2022-03-15 13:44:00,136 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:00,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:00,137 INFO L85 PathProgramCache]: Analyzing trace with hash -563810257, now seen corresponding path program 1 times [2022-03-15 13:44:00,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:00,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831086270] [2022-03-15 13:44:00,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:00,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:00,191 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:00,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:00,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831086270] [2022-03-15 13:44:00,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831086270] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 13:44:00,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327436080] [2022-03-15 13:44:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:00,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 13:44:00,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:44:00,193 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) [2022-03-15 13:44:00,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 13:44:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:00,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-15 13:44:00,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 13:44:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:00,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 13:44:01,171 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:01,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327436080] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 13:44:01,172 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 13:44:01,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-03-15 13:44:01,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506322955] [2022-03-15 13:44:01,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 13:44:01,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:44:01,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:01,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:44:01,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:44:01,173 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) [2022-03-15 13:44:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:01,477 INFO L93 Difference]: Finished difference Result 56701 states and 156233 transitions. [2022-03-15 13:44:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 13:44:01,478 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 [2022-03-15 13:44:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:01,603 INFO L225 Difference]: With dead ends: 56701 [2022-03-15 13:44:01,603 INFO L226 Difference]: Without dead ends: 56701 [2022-03-15 13:44:01,604 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 [2022-03-15 13:44:01,604 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 [2022-03-15 13:44:01,604 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] [2022-03-15 13:44:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56701 states. [2022-03-15 13:44:02,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56701 to 39273. [2022-03-15 13:44:02,507 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) [2022-03-15 13:44:02,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109771 transitions. [2022-03-15 13:44:02,598 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109771 transitions. Word has length 230 [2022-03-15 13:44:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:02,599 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109771 transitions. [2022-03-15 13:44:02,599 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) [2022-03-15 13:44:02,599 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109771 transitions. [2022-03-15 13:44:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:02,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:02,634 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] [2022-03-15 13:44:02,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-15 13:44:02,834 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 [2022-03-15 13:44:02,834 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:02,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:02,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1435683988, now seen corresponding path program 1 times [2022-03-15 13:44:02,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:02,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348623412] [2022-03-15 13:44:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:02,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:03,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:03,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348623412] [2022-03-15 13:44:03,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348623412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:03,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:03,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:44:03,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541470104] [2022-03-15 13:44:03,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:03,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:44:03,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:03,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:44:03,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:44:03,326 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) [2022-03-15 13:44:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:04,906 INFO L93 Difference]: Finished difference Result 48771 states and 134993 transitions. [2022-03-15 13:44:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:44:04,907 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 [2022-03-15 13:44:04,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:05,011 INFO L225 Difference]: With dead ends: 48771 [2022-03-15 13:44:05,012 INFO L226 Difference]: Without dead ends: 47979 [2022-03-15 13:44:05,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=597, Invalid=2265, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:44:05,012 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 [2022-03-15 13:44:05,012 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] [2022-03-15 13:44:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47979 states. [2022-03-15 13:44:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47979 to 39273. [2022-03-15 13:44:06,108 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) [2022-03-15 13:44:06,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109761 transitions. [2022-03-15 13:44:06,198 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109761 transitions. Word has length 231 [2022-03-15 13:44:06,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:06,198 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109761 transitions. [2022-03-15 13:44:06,198 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) [2022-03-15 13:44:06,198 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109761 transitions. [2022-03-15 13:44:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:06,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:06,239 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, 1, 1, 1, 1] [2022-03-15 13:44:06,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-15 13:44:06,240 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:06,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:06,240 INFO L85 PathProgramCache]: Analyzing trace with hash 766716600, now seen corresponding path program 2 times [2022-03-15 13:44:06,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:06,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369314210] [2022-03-15 13:44:06,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:06,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:06,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:06,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369314210] [2022-03-15 13:44:06,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369314210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:06,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:06,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:44:06,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757161231] [2022-03-15 13:44:06,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:06,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:44:06,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:06,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:44:06,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:44:06,856 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) [2022-03-15 13:44:08,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:08,814 INFO L93 Difference]: Finished difference Result 52312 states and 144812 transitions. [2022-03-15 13:44:08,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 13:44:08,814 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 [2022-03-15 13:44:08,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:08,933 INFO L225 Difference]: With dead ends: 52312 [2022-03-15 13:44:08,933 INFO L226 Difference]: Without dead ends: 51663 [2022-03-15 13:44:08,934 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 [2022-03-15 13:44:08,934 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 [2022-03-15 13:44:08,934 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] [2022-03-15 13:44:09,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51663 states. [2022-03-15 13:44:09,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51663 to 39616. [2022-03-15 13:44:09,735 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) [2022-03-15 13:44:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39616 states to 39616 states and 110689 transitions. [2022-03-15 13:44:09,835 INFO L78 Accepts]: Start accepts. Automaton has 39616 states and 110689 transitions. Word has length 231 [2022-03-15 13:44:09,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:09,835 INFO L470 AbstractCegarLoop]: Abstraction has 39616 states and 110689 transitions. [2022-03-15 13:44:09,836 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) [2022-03-15 13:44:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 39616 states and 110689 transitions. [2022-03-15 13:44:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:09,879 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:09,879 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] [2022-03-15 13:44:09,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-15 13:44:09,880 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1454566740, now seen corresponding path program 3 times [2022-03-15 13:44:09,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:09,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565175351] [2022-03-15 13:44:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:09,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:10,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:10,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565175351] [2022-03-15 13:44:10,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565175351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:10,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:10,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:44:10,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61285136] [2022-03-15 13:44:10,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:10,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:44:10,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:44:10,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:44:10,640 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) [2022-03-15 13:44:17,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:17,227 INFO L93 Difference]: Finished difference Result 67360 states and 185691 transitions. [2022-03-15 13:44:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-15 13:44:17,227 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 [2022-03-15 13:44:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:17,393 INFO L225 Difference]: With dead ends: 67360 [2022-03-15 13:44:17,393 INFO L226 Difference]: Without dead ends: 67360 [2022-03-15 13:44:17,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4835 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3572, Invalid=14250, Unknown=0, NotChecked=0, Total=17822 [2022-03-15 13:44:17,394 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, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:44:17,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2470 Valid, 9821 Invalid, 3498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 13:44:17,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67360 states. [2022-03-15 13:44:18,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67360 to 39680. [2022-03-15 13:44:18,490 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) [2022-03-15 13:44:18,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-03-15 13:44:18,588 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-03-15 13:44:18,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:18,588 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-03-15 13:44:18,589 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) [2022-03-15 13:44:18,589 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-03-15 13:44:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:18,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:18,632 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] [2022-03-15 13:44:18,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-15 13:44:18,632 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:18,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1020096502, now seen corresponding path program 4 times [2022-03-15 13:44:18,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:18,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628955904] [2022-03-15 13:44:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:18,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:19,203 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:19,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:19,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628955904] [2022-03-15 13:44:19,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628955904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:19,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:19,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:44:19,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766734192] [2022-03-15 13:44:19,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:19,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:44:19,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:19,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:44:19,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:44:19,204 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) [2022-03-15 13:44:25,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:25,687 INFO L93 Difference]: Finished difference Result 52998 states and 146732 transitions. [2022-03-15 13:44:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-15 13:44:25,688 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 [2022-03-15 13:44:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:25,810 INFO L225 Difference]: With dead ends: 52998 [2022-03-15 13:44:25,811 INFO L226 Difference]: Without dead ends: 52998 [2022-03-15 13:44:25,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3332, Invalid=12418, Unknown=0, NotChecked=0, Total=15750 [2022-03-15 13:44:25,811 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 2288 mSDsluCounter, 10031 mSDsCounter, 0 mSdLazyCounter, 3680 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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 [2022-03-15 13:44:25,812 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] [2022-03-15 13:44:25,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52998 states. [2022-03-15 13:44:26,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52998 to 39680. [2022-03-15 13:44:26,653 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) [2022-03-15 13:44:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-03-15 13:44:26,752 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-03-15 13:44:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:26,752 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-03-15 13:44:26,752 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) [2022-03-15 13:44:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-03-15 13:44:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:26,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:26,795 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] [2022-03-15 13:44:26,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-15 13:44:26,796 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:26,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash -773984514, now seen corresponding path program 5 times [2022-03-15 13:44:26,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:26,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010432298] [2022-03-15 13:44:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:26,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:27,274 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:27,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:27,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010432298] [2022-03-15 13:44:27,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010432298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:27,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:27,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:44:27,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000145606] [2022-03-15 13:44:27,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:27,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:44:27,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:27,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:44:27,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:44:27,279 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) [2022-03-15 13:44:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:29,581 INFO L93 Difference]: Finished difference Result 50928 states and 141170 transitions. [2022-03-15 13:44:29,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:44:29,582 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 [2022-03-15 13:44:29,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:29,701 INFO L225 Difference]: With dead ends: 50928 [2022-03-15 13:44:29,702 INFO L226 Difference]: Without dead ends: 50928 [2022-03-15 13:44:29,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=872, Invalid=2910, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 13:44:29,702 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 1707 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-03-15 13:44:29,702 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] [2022-03-15 13:44:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50928 states. [2022-03-15 13:44:30,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50928 to 39680. [2022-03-15 13:44:30,520 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) [2022-03-15 13:44:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-03-15 13:44:30,617 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-03-15 13:44:30,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:30,617 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-03-15 13:44:30,617 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) [2022-03-15 13:44:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-03-15 13:44:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:30,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:30,844 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] [2022-03-15 13:44:30,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-15 13:44:30,844 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:30,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:30,845 INFO L85 PathProgramCache]: Analyzing trace with hash -430937490, now seen corresponding path program 6 times [2022-03-15 13:44:30,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:30,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962172648] [2022-03-15 13:44:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:30,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:31,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:31,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962172648] [2022-03-15 13:44:31,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962172648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:31,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:31,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:44:31,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720494737] [2022-03-15 13:44:31,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:31,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:44:31,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:31,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:44:31,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:44:31,496 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) [2022-03-15 13:44:38,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:38,278 INFO L93 Difference]: Finished difference Result 57004 states and 157565 transitions. [2022-03-15 13:44:38,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-15 13:44:38,279 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 [2022-03-15 13:44:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:38,411 INFO L225 Difference]: With dead ends: 57004 [2022-03-15 13:44:38,412 INFO L226 Difference]: Without dead ends: 56355 [2022-03-15 13:44:38,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5909 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=3953, Invalid=16353, Unknown=0, NotChecked=0, Total=20306 [2022-03-15 13:44:38,413 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 2444 mSDsluCounter, 10148 mSDsCounter, 0 mSdLazyCounter, 3538 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:44:38,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2444 Valid, 10678 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3538 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 13:44:38,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56355 states. [2022-03-15 13:44:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56355 to 39776. [2022-03-15 13:44:39,381 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) [2022-03-15 13:44:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39776 states to 39776 states and 111157 transitions. [2022-03-15 13:44:39,487 INFO L78 Accepts]: Start accepts. Automaton has 39776 states and 111157 transitions. Word has length 231 [2022-03-15 13:44:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:39,488 INFO L470 AbstractCegarLoop]: Abstraction has 39776 states and 111157 transitions. [2022-03-15 13:44:39,488 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) [2022-03-15 13:44:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 39776 states and 111157 transitions. [2022-03-15 13:44:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:39,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:39,535 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] [2022-03-15 13:44:39,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-15 13:44:39,535 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash 256912650, now seen corresponding path program 7 times [2022-03-15 13:44:39,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:39,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566850718] [2022-03-15 13:44:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:40,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:40,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566850718] [2022-03-15 13:44:40,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566850718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:40,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:40,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:44:40,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093274697] [2022-03-15 13:44:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:40,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:44:40,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:40,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:44:40,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:44:40,183 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) [2022-03-15 13:44:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:42,570 INFO L93 Difference]: Finished difference Result 55069 states and 152952 transitions. [2022-03-15 13:44:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:44:42,570 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 [2022-03-15 13:44:42,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:42,701 INFO L225 Difference]: With dead ends: 55069 [2022-03-15 13:44:42,701 INFO L226 Difference]: Without dead ends: 55069 [2022-03-15 13:44:42,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=922, Invalid=2984, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:44:42,702 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 [2022-03-15 13:44:42,702 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] [2022-03-15 13:44:42,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55069 states. [2022-03-15 13:44:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55069 to 39784. [2022-03-15 13:44:43,586 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) [2022-03-15 13:44:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39784 states to 39784 states and 111191 transitions. [2022-03-15 13:44:43,682 INFO L78 Accepts]: Start accepts. Automaton has 39784 states and 111191 transitions. Word has length 231 [2022-03-15 13:44:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:43,682 INFO L470 AbstractCegarLoop]: Abstraction has 39784 states and 111191 transitions. [2022-03-15 13:44:43,682 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) [2022-03-15 13:44:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 39784 states and 111191 transitions. [2022-03-15 13:44:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:43,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:43,723 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, 1, 1, 1, 1] [2022-03-15 13:44:43,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-15 13:44:43,724 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:43,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:43,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2077216704, now seen corresponding path program 8 times [2022-03-15 13:44:43,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:43,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809588731] [2022-03-15 13:44:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:43,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:44,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:44,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809588731] [2022-03-15 13:44:44,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809588731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:44,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:44,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:44:44,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896447453] [2022-03-15 13:44:44,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:44,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:44:44,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:44,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:44:44,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:44:44,311 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) [2022-03-15 13:44:52,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:52,264 INFO L93 Difference]: Finished difference Result 57442 states and 159297 transitions. [2022-03-15 13:44:52,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-03-15 13:44:52,264 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 [2022-03-15 13:44:52,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:52,397 INFO L225 Difference]: With dead ends: 57442 [2022-03-15 13:44:52,398 INFO L226 Difference]: Without dead ends: 57442 [2022-03-15 13:44:52,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6614 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4673, Invalid=17677, Unknown=0, NotChecked=0, Total=22350 [2022-03-15 13:44:52,399 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 2474 mSDsluCounter, 9570 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:44:52,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2474 Valid, 10139 Invalid, 3558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 13:44:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57442 states. [2022-03-15 13:44:53,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57442 to 39780. [2022-03-15 13:44:53,261 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) [2022-03-15 13:44:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39780 states to 39780 states and 111172 transitions. [2022-03-15 13:44:53,356 INFO L78 Accepts]: Start accepts. Automaton has 39780 states and 111172 transitions. Word has length 231 [2022-03-15 13:44:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:53,357 INFO L470 AbstractCegarLoop]: Abstraction has 39780 states and 111172 transitions. [2022-03-15 13:44:53,357 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) [2022-03-15 13:44:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 39780 states and 111172 transitions. [2022-03-15 13:44:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:53,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:53,398 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] [2022-03-15 13:44:53,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-15 13:44:53,398 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1971638604, now seen corresponding path program 9 times [2022-03-15 13:44:53,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:53,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761546669] [2022-03-15 13:44:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:53,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:53,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761546669] [2022-03-15 13:44:53,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761546669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:53,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:53,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:44:53,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264741816] [2022-03-15 13:44:53,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:53,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:44:53,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:53,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:44:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:44:53,928 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) [2022-03-15 13:44:56,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:44:56,593 INFO L93 Difference]: Finished difference Result 55568 states and 154218 transitions. [2022-03-15 13:44:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:44:56,593 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 [2022-03-15 13:44:56,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:44:56,729 INFO L225 Difference]: With dead ends: 55568 [2022-03-15 13:44:56,729 INFO L226 Difference]: Without dead ends: 55568 [2022-03-15 13:44:56,730 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 [2022-03-15 13:44:56,730 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1856 mSDsluCounter, 5584 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 13:44:56,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1856 Valid, 5936 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 13:44:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55568 states. [2022-03-15 13:44:57,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55568 to 39728. [2022-03-15 13:44:57,508 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) [2022-03-15 13:44:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39728 states to 39728 states and 111009 transitions. [2022-03-15 13:44:57,738 INFO L78 Accepts]: Start accepts. Automaton has 39728 states and 111009 transitions. Word has length 231 [2022-03-15 13:44:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:44:57,738 INFO L470 AbstractCegarLoop]: Abstraction has 39728 states and 111009 transitions. [2022-03-15 13:44:57,738 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) [2022-03-15 13:44:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 39728 states and 111009 transitions. [2022-03-15 13:44:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:44:57,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:44:57,784 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] [2022-03-15 13:44:57,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-15 13:44:57,784 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:44:57,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:44:57,785 INFO L85 PathProgramCache]: Analyzing trace with hash 533439422, now seen corresponding path program 10 times [2022-03-15 13:44:57,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:44:57,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153289295] [2022-03-15 13:44:57,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:44:57,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:44:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:44:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:44:58,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:44:58,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153289295] [2022-03-15 13:44:58,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153289295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:44:58,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:44:58,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:44:58,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538973357] [2022-03-15 13:44:58,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:44:58,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:44:58,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:44:58,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:44:58,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:44:58,392 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) [2022-03-15 13:45:04,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:04,976 INFO L93 Difference]: Finished difference Result 62497 states and 172477 transitions. [2022-03-15 13:45:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-15 13:45:04,977 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 [2022-03-15 13:45:04,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:05,111 INFO L225 Difference]: With dead ends: 62497 [2022-03-15 13:45:05,111 INFO L226 Difference]: Without dead ends: 62025 [2022-03-15 13:45:05,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5891 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4290, Invalid=15450, Unknown=0, NotChecked=0, Total=19740 [2022-03-15 13:45:05,112 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 2296 mSDsluCounter, 7887 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:45:05,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2296 Valid, 8323 Invalid, 3086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 13:45:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62025 states. [2022-03-15 13:45:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62025 to 39752. [2022-03-15 13:45:05,995 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) [2022-03-15 13:45:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39752 states to 39752 states and 111079 transitions. [2022-03-15 13:45:06,088 INFO L78 Accepts]: Start accepts. Automaton has 39752 states and 111079 transitions. Word has length 231 [2022-03-15 13:45:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:06,088 INFO L470 AbstractCegarLoop]: Abstraction has 39752 states and 111079 transitions. [2022-03-15 13:45:06,089 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) [2022-03-15 13:45:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 39752 states and 111079 transitions. [2022-03-15 13:45:06,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:06,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:06,131 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] [2022-03-15 13:45:06,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-15 13:45:06,131 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:06,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash -614085760, now seen corresponding path program 11 times [2022-03-15 13:45:06,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:06,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793574093] [2022-03-15 13:45:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:06,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:06,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:06,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793574093] [2022-03-15 13:45:06,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793574093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:06,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:06,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:45:06,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217556474] [2022-03-15 13:45:06,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:06,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:45:06,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:06,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:45:06,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:45:06,830 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) [2022-03-15 13:45:16,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:16,063 INFO L93 Difference]: Finished difference Result 63469 states and 175453 transitions. [2022-03-15 13:45:16,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-15 13:45:16,064 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 [2022-03-15 13:45:16,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:16,202 INFO L225 Difference]: With dead ends: 63469 [2022-03-15 13:45:16,202 INFO L226 Difference]: Without dead ends: 62944 [2022-03-15 13:45:16,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7692 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=5382, Invalid=19424, Unknown=0, NotChecked=0, Total=24806 [2022-03-15 13:45:16,204 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 2730 mSDsluCounter, 7475 mSDsCounter, 0 mSdLazyCounter, 3032 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:45:16,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2730 Valid, 7957 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3032 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 13:45:16,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62944 states. [2022-03-15 13:45:17,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62944 to 39808. [2022-03-15 13:45:17,086 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) [2022-03-15 13:45:17,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39808 states to 39808 states and 111233 transitions. [2022-03-15 13:45:17,322 INFO L78 Accepts]: Start accepts. Automaton has 39808 states and 111233 transitions. Word has length 231 [2022-03-15 13:45:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:17,323 INFO L470 AbstractCegarLoop]: Abstraction has 39808 states and 111233 transitions. [2022-03-15 13:45:17,323 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) [2022-03-15 13:45:17,323 INFO L276 IsEmpty]: Start isEmpty. Operand 39808 states and 111233 transitions. [2022-03-15 13:45:17,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:17,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:17,365 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] [2022-03-15 13:45:17,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-15 13:45:17,365 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:17,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1751947262, now seen corresponding path program 12 times [2022-03-15 13:45:17,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:17,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556419474] [2022-03-15 13:45:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:17,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:18,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:18,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556419474] [2022-03-15 13:45:18,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556419474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:18,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:18,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:45:18,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099742006] [2022-03-15 13:45:18,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:18,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:45:18,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:18,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:45:18,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:45:18,060 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) [2022-03-15 13:45:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:20,548 INFO L93 Difference]: Finished difference Result 51129 states and 141861 transitions. [2022-03-15 13:45:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:45:20,549 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 [2022-03-15 13:45:20,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:20,670 INFO L225 Difference]: With dead ends: 51129 [2022-03-15 13:45:20,670 INFO L226 Difference]: Without dead ends: 51129 [2022-03-15 13:45:20,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=976, Invalid=3184, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 13:45:20,670 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1679 mSDsluCounter, 5022 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:45:20,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1679 Valid, 5353 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:45:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51129 states. [2022-03-15 13:45:21,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51129 to 39792. [2022-03-15 13:45:21,520 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) [2022-03-15 13:45:21,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-03-15 13:45:21,612 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-03-15 13:45:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:21,613 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-03-15 13:45:21,613 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) [2022-03-15 13:45:21,613 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-03-15 13:45:21,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:21,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:21,655 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] [2022-03-15 13:45:21,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-15 13:45:21,655 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash -324715772, now seen corresponding path program 13 times [2022-03-15 13:45:21,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:21,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835084040] [2022-03-15 13:45:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:22,278 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:22,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:22,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835084040] [2022-03-15 13:45:22,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835084040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:22,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:22,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:45:22,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897684312] [2022-03-15 13:45:22,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:22,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:45:22,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:45:22,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:45:22,280 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) [2022-03-15 13:45:30,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:30,732 INFO L93 Difference]: Finished difference Result 69884 states and 192760 transitions. [2022-03-15 13:45:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-15 13:45:30,733 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 [2022-03-15 13:45:30,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:30,974 INFO L225 Difference]: With dead ends: 69884 [2022-03-15 13:45:30,974 INFO L226 Difference]: Without dead ends: 69884 [2022-03-15 13:45:30,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6913 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=4664, Invalid=18288, Unknown=0, NotChecked=0, Total=22952 [2022-03-15 13:45:30,975 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2237 mSDsluCounter, 9703 mSDsCounter, 0 mSdLazyCounter, 3819 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 13:45:30,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2237 Valid, 10235 Invalid, 3844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3819 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-15 13:45:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69884 states. [2022-03-15 13:45:31,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69884 to 39796. [2022-03-15 13:45:31,882 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) [2022-03-15 13:45:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111204 transitions. [2022-03-15 13:45:31,974 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111204 transitions. Word has length 231 [2022-03-15 13:45:31,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:31,975 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111204 transitions. [2022-03-15 13:45:31,975 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) [2022-03-15 13:45:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111204 transitions. [2022-03-15 13:45:32,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:32,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:32,013 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, 1, 1, 1, 1] [2022-03-15 13:45:32,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-15 13:45:32,014 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:32,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1495588282, now seen corresponding path program 14 times [2022-03-15 13:45:32,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:32,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355651921] [2022-03-15 13:45:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:32,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:32,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:32,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355651921] [2022-03-15 13:45:32,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355651921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:32,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:32,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:45:32,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788984375] [2022-03-15 13:45:32,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:32,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:45:32,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:32,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:45:32,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:45:32,570 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) [2022-03-15 13:45:34,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:34,895 INFO L93 Difference]: Finished difference Result 51601 states and 143205 transitions. [2022-03-15 13:45:34,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-15 13:45:34,895 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 [2022-03-15 13:45:34,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:35,071 INFO L225 Difference]: With dead ends: 51601 [2022-03-15 13:45:35,071 INFO L226 Difference]: Without dead ends: 51601 [2022-03-15 13:45:35,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=875, Invalid=2907, Unknown=0, NotChecked=0, Total=3782 [2022-03-15 13:45:35,072 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1966 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 13:45:35,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1966 Valid, 4431 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 13:45:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51601 states. [2022-03-15 13:45:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51601 to 39792. [2022-03-15 13:45:35,820 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) [2022-03-15 13:45:35,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-03-15 13:45:35,906 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-03-15 13:45:35,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:35,907 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-03-15 13:45:35,907 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) [2022-03-15 13:45:35,907 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-03-15 13:45:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:35,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:35,945 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, 1, 1, 1, 1] [2022-03-15 13:45:35,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-15 13:45:35,945 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:35,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1109678508, now seen corresponding path program 15 times [2022-03-15 13:45:35,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:35,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911081666] [2022-03-15 13:45:35,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:35,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:36,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:36,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911081666] [2022-03-15 13:45:36,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911081666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:36,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:36,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:45:36,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657000879] [2022-03-15 13:45:36,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:36,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:45:36,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:36,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:45:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:45:36,633 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) [2022-03-15 13:45:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:44,490 INFO L93 Difference]: Finished difference Result 70136 states and 193457 transitions. [2022-03-15 13:45:44,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-15 13:45:44,491 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 [2022-03-15 13:45:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:44,666 INFO L225 Difference]: With dead ends: 70136 [2022-03-15 13:45:44,666 INFO L226 Difference]: Without dead ends: 70136 [2022-03-15 13:45:44,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8593 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=5525, Invalid=20881, Unknown=0, NotChecked=0, Total=26406 [2022-03-15 13:45:44,668 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 [2022-03-15 13:45:44,668 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] [2022-03-15 13:45:44,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70136 states. [2022-03-15 13:45:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70136 to 39800. [2022-03-15 13:45:45,775 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) [2022-03-15 13:45:45,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39800 states to 39800 states and 111219 transitions. [2022-03-15 13:45:45,865 INFO L78 Accepts]: Start accepts. Automaton has 39800 states and 111219 transitions. Word has length 231 [2022-03-15 13:45:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:45,866 INFO L470 AbstractCegarLoop]: Abstraction has 39800 states and 111219 transitions. [2022-03-15 13:45:45,866 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) [2022-03-15 13:45:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 39800 states and 111219 transitions. [2022-03-15 13:45:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:45,903 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:45,904 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] [2022-03-15 13:45:45,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-15 13:45:45,904 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash 710625546, now seen corresponding path program 16 times [2022-03-15 13:45:45,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:45,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428153440] [2022-03-15 13:45:45,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:45,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:46,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:46,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428153440] [2022-03-15 13:45:46,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428153440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:46,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:46,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:45:46,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4600453] [2022-03-15 13:45:46,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:46,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:45:46,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:46,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:45:46,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:45:46,474 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) [2022-03-15 13:45:49,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:49,108 INFO L93 Difference]: Finished difference Result 52469 states and 145596 transitions. [2022-03-15 13:45:49,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-15 13:45:49,109 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 [2022-03-15 13:45:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:49,232 INFO L225 Difference]: With dead ends: 52469 [2022-03-15 13:45:49,232 INFO L226 Difference]: Without dead ends: 52469 [2022-03-15 13:45:49,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-03-15 13:45:49,233 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, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 13:45:49,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 5868 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 13:45:49,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52469 states. [2022-03-15 13:45:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52469 to 39796. [2022-03-15 13:45:50,025 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) [2022-03-15 13:45:50,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111200 transitions. [2022-03-15 13:45:50,119 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111200 transitions. Word has length 231 [2022-03-15 13:45:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:50,119 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111200 transitions. [2022-03-15 13:45:50,120 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) [2022-03-15 13:45:50,120 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111200 transitions. [2022-03-15 13:45:50,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:50,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:50,162 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] [2022-03-15 13:45:50,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-15 13:45:50,162 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:50,162 INFO L85 PathProgramCache]: Analyzing trace with hash 956737534, now seen corresponding path program 17 times [2022-03-15 13:45:50,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:50,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736651431] [2022-03-15 13:45:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:50,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:50,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:50,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736651431] [2022-03-15 13:45:50,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736651431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:50,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:50,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-15 13:45:50,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261263832] [2022-03-15 13:45:50,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:50,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-15 13:45:50,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:50,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-15 13:45:50,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:45:50,701 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) [2022-03-15 13:45:57,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:45:57,379 INFO L93 Difference]: Finished difference Result 53805 states and 148963 transitions. [2022-03-15 13:45:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-15 13:45:57,380 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 [2022-03-15 13:45:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:45:57,504 INFO L225 Difference]: With dead ends: 53805 [2022-03-15 13:45:57,504 INFO L226 Difference]: Without dead ends: 53805 [2022-03-15 13:45:57,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5994 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=4361, Invalid=15661, Unknown=0, NotChecked=0, Total=20022 [2022-03-15 13:45:57,505 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2061 mSDsluCounter, 9501 mSDsCounter, 0 mSdLazyCounter, 3682 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:45:57,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2061 Valid, 9952 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3682 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 13:45:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53805 states. [2022-03-15 13:45:58,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53805 to 39792. [2022-03-15 13:45:58,310 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) [2022-03-15 13:45:58,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-03-15 13:45:58,407 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-03-15 13:45:58,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:45:58,407 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-03-15 13:45:58,407 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) [2022-03-15 13:45:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-03-15 13:45:58,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:45:58,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:45:58,448 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] [2022-03-15 13:45:58,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-15 13:45:58,449 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:45:58,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:45:58,449 INFO L85 PathProgramCache]: Analyzing trace with hash 245365692, now seen corresponding path program 18 times [2022-03-15 13:45:58,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:45:58,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362818443] [2022-03-15 13:45:58,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:45:58,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:45:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:45:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:45:58,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:45:58,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362818443] [2022-03-15 13:45:58,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362818443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:45:58,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:45:58,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:45:58,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466699173] [2022-03-15 13:45:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:45:58,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:45:58,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:45:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:45:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:45:58,990 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) [2022-03-15 13:46:05,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:46:05,013 INFO L93 Difference]: Finished difference Result 62322 states and 172096 transitions. [2022-03-15 13:46:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-15 13:46:05,013 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 [2022-03-15 13:46:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:46:05,157 INFO L225 Difference]: With dead ends: 62322 [2022-03-15 13:46:05,157 INFO L226 Difference]: Without dead ends: 61673 [2022-03-15 13:46:05,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5769 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4019, Invalid=16287, Unknown=0, NotChecked=0, Total=20306 [2022-03-15 13:46:05,158 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 [2022-03-15 13:46:05,158 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] [2022-03-15 13:46:05,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61673 states. [2022-03-15 13:46:06,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61673 to 40464. [2022-03-15 13:46:06,159 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) [2022-03-15 13:46:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40464 states to 40464 states and 113149 transitions. [2022-03-15 13:46:06,251 INFO L78 Accepts]: Start accepts. Automaton has 40464 states and 113149 transitions. Word has length 231 [2022-03-15 13:46:06,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:46:06,251 INFO L470 AbstractCegarLoop]: Abstraction has 40464 states and 113149 transitions. [2022-03-15 13:46:06,252 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) [2022-03-15 13:46:06,252 INFO L276 IsEmpty]: Start isEmpty. Operand 40464 states and 113149 transitions. [2022-03-15 13:46:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:46:06,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:46:06,300 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] [2022-03-15 13:46:06,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-15 13:46:06,300 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:46:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:46:06,301 INFO L85 PathProgramCache]: Analyzing trace with hash 933215832, now seen corresponding path program 19 times [2022-03-15 13:46:06,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:46:06,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850893700] [2022-03-15 13:46:06,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:46:06,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:46:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:46:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:46:06,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:46:06,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850893700] [2022-03-15 13:46:06,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850893700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:46:06,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:46:06,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:46:06,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284177930] [2022-03-15 13:46:06,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:46:06,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:46:06,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:46:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:46:06,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:46:06,863 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) [2022-03-15 13:46:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:46:13,223 INFO L93 Difference]: Finished difference Result 80484 states and 221756 transitions. [2022-03-15 13:46:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-15 13:46:13,224 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 [2022-03-15 13:46:13,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:46:13,439 INFO L225 Difference]: With dead ends: 80484 [2022-03-15 13:46:13,440 INFO L226 Difference]: Without dead ends: 80484 [2022-03-15 13:46:13,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6554 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=4399, Invalid=17951, Unknown=0, NotChecked=0, Total=22350 [2022-03-15 13:46:13,441 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 2738 mSDsluCounter, 8748 mSDsCounter, 0 mSdLazyCounter, 3470 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:46:13,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2738 Valid, 9296 Invalid, 3497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3470 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 13:46:13,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80484 states. [2022-03-15 13:46:14,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80484 to 40472. [2022-03-15 13:46:14,579 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) [2022-03-15 13:46:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113183 transitions. [2022-03-15 13:46:14,672 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113183 transitions. Word has length 231 [2022-03-15 13:46:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:46:14,673 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113183 transitions. [2022-03-15 13:46:14,673 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) [2022-03-15 13:46:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113183 transitions. [2022-03-15 13:46:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:46:14,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:46:14,719 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, 1, 1, 1, 1] [2022-03-15 13:46:14,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-15 13:46:14,719 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:46:14,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:46:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1541447410, now seen corresponding path program 20 times [2022-03-15 13:46:14,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:46:14,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026620860] [2022-03-15 13:46:14,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:46:14,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:46:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:46:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:46:15,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:46:15,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026620860] [2022-03-15 13:46:15,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026620860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:46:15,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:46:15,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:46:15,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561296376] [2022-03-15 13:46:15,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:46:15,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:46:15,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:46:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:46:15,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:46:15,277 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) [2022-03-15 13:46:21,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:46:21,608 INFO L93 Difference]: Finished difference Result 63265 states and 175101 transitions. [2022-03-15 13:46:21,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-03-15 13:46:21,609 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 [2022-03-15 13:46:21,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:46:21,750 INFO L225 Difference]: With dead ends: 63265 [2022-03-15 13:46:21,751 INFO L226 Difference]: Without dead ends: 63265 [2022-03-15 13:46:21,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6455 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4677, Invalid=17673, Unknown=0, NotChecked=0, Total=22350 [2022-03-15 13:46:21,753 INFO L933 BasicCegarLoop]: 728 mSDtfsCounter, 2666 mSDsluCounter, 9557 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:46:21,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2666 Valid, 10105 Invalid, 3707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 13:46:21,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63265 states. [2022-03-15 13:46:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63265 to 40468. [2022-03-15 13:46:22,785 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) [2022-03-15 13:46:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40468 states to 40468 states and 113164 transitions. [2022-03-15 13:46:22,868 INFO L78 Accepts]: Start accepts. Automaton has 40468 states and 113164 transitions. Word has length 231 [2022-03-15 13:46:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:46:22,868 INFO L470 AbstractCegarLoop]: Abstraction has 40468 states and 113164 transitions. [2022-03-15 13:46:22,868 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) [2022-03-15 13:46:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 40468 states and 113164 transitions. [2022-03-15 13:46:22,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:46:22,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:46:22,908 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:46:22,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-15 13:46:22,908 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:46:22,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:46:22,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1295335422, now seen corresponding path program 21 times [2022-03-15 13:46:22,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:46:22,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902706719] [2022-03-15 13:46:22,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:46:22,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:46:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:46:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:46:23,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:46:23,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902706719] [2022-03-15 13:46:23,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902706719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:46:23,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:46:23,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:46:23,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212266894] [2022-03-15 13:46:23,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:46:23,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:46:23,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:46:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:46:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:46:23,325 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) [2022-03-15 13:46:25,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:46:25,395 INFO L93 Difference]: Finished difference Result 61451 states and 170167 transitions. [2022-03-15 13:46:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:46:25,395 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 [2022-03-15 13:46:25,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:46:25,534 INFO L225 Difference]: With dead ends: 61451 [2022-03-15 13:46:25,534 INFO L226 Difference]: Without dead ends: 61451 [2022-03-15 13:46:25,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=928, Invalid=2978, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:46:25,534 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 [2022-03-15 13:46:25,534 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] [2022-03-15 13:46:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61451 states. [2022-03-15 13:46:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61451 to 40416. [2022-03-15 13:46:26,407 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) [2022-03-15 13:46:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40416 states to 40416 states and 113001 transitions. [2022-03-15 13:46:26,499 INFO L78 Accepts]: Start accepts. Automaton has 40416 states and 113001 transitions. Word has length 231 [2022-03-15 13:46:26,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:46:26,499 INFO L470 AbstractCegarLoop]: Abstraction has 40416 states and 113001 transitions. [2022-03-15 13:46:26,499 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) [2022-03-15 13:46:26,499 INFO L276 IsEmpty]: Start isEmpty. Operand 40416 states and 113001 transitions. [2022-03-15 13:46:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:46:26,542 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:46:26,542 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] [2022-03-15 13:46:26,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-15 13:46:26,542 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:46:26,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:46:26,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1209742604, now seen corresponding path program 22 times [2022-03-15 13:46:26,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:46:26,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767128171] [2022-03-15 13:46:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:46:26,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:46:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:46:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:46:27,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:46:27,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767128171] [2022-03-15 13:46:27,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767128171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:46:27,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:46:27,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:46:27,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283091416] [2022-03-15 13:46:27,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:46:27,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:46:27,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:46:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:46:27,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:46:27,159 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) [2022-03-15 13:46:36,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:46:36,487 INFO L93 Difference]: Finished difference Result 75697 states and 208811 transitions. [2022-03-15 13:46:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-15 13:46:36,487 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 [2022-03-15 13:46:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:46:36,667 INFO L225 Difference]: With dead ends: 75697 [2022-03-15 13:46:36,667 INFO L226 Difference]: Without dead ends: 75169 [2022-03-15 13:46:36,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9203 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=5934, Invalid=22796, Unknown=0, NotChecked=0, Total=28730 [2022-03-15 13:46:36,669 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2702 mSDsluCounter, 9399 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:46:36,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2702 Valid, 9887 Invalid, 3864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 13:46:36,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75169 states. [2022-03-15 13:46:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75169 to 40440. [2022-03-15 13:46:37,684 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) [2022-03-15 13:46:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40440 states to 40440 states and 113071 transitions. [2022-03-15 13:46:37,937 INFO L78 Accepts]: Start accepts. Automaton has 40440 states and 113071 transitions. Word has length 231 [2022-03-15 13:46:37,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:46:37,937 INFO L470 AbstractCegarLoop]: Abstraction has 40440 states and 113071 transitions. [2022-03-15 13:46:37,937 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) [2022-03-15 13:46:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 40440 states and 113071 transitions. [2022-03-15 13:46:37,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:46:37,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:46:37,980 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] [2022-03-15 13:46:37,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-15 13:46:37,980 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:46:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:46:37,981 INFO L85 PathProgramCache]: Analyzing trace with hash 62217422, now seen corresponding path program 23 times [2022-03-15 13:46:37,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:46:37,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998485986] [2022-03-15 13:46:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:46:37,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:46:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:46:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:46:38,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:46:38,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998485986] [2022-03-15 13:46:38,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998485986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:46:38,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:46:38,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:46:38,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557836706] [2022-03-15 13:46:38,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:46:38,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:46:38,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:46:38,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:46:38,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:46:38,530 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) [2022-03-15 13:46:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:46:45,791 INFO L93 Difference]: Finished difference Result 77464 states and 213962 transitions. [2022-03-15 13:46:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-03-15 13:46:45,791 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 [2022-03-15 13:46:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:46:45,961 INFO L225 Difference]: With dead ends: 77464 [2022-03-15 13:46:45,961 INFO L226 Difference]: Without dead ends: 76911 [2022-03-15 13:46:45,963 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 [2022-03-15 13:46:45,963 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 2718 mSDsluCounter, 7128 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:46:45,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2718 Valid, 7569 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 13:46:46,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76911 states. [2022-03-15 13:46:47,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76911 to 40496. [2022-03-15 13:46:47,073 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) [2022-03-15 13:46:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40496 states to 40496 states and 113225 transitions. [2022-03-15 13:46:47,294 INFO L78 Accepts]: Start accepts. Automaton has 40496 states and 113225 transitions. Word has length 231 [2022-03-15 13:46:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:46:47,294 INFO L470 AbstractCegarLoop]: Abstraction has 40496 states and 113225 transitions. [2022-03-15 13:46:47,294 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) [2022-03-15 13:46:47,294 INFO L276 IsEmpty]: Start isEmpty. Operand 40496 states and 113225 transitions. [2022-03-15 13:46:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:46:47,336 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:46:47,336 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] [2022-03-15 13:46:47,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-15 13:46:47,337 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:46:47,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:46:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1866716852, now seen corresponding path program 24 times [2022-03-15 13:46:47,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:46:47,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437240548] [2022-03-15 13:46:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:46:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:46:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:46:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:46:47,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:46:47,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437240548] [2022-03-15 13:46:47,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437240548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:46:47,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:46:47,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:46:47,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262175868] [2022-03-15 13:46:47,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:46:47,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:46:47,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:46:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:46:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:46:47,900 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) [2022-03-15 13:46:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:46:53,070 INFO L93 Difference]: Finished difference Result 88670 states and 246537 transitions. [2022-03-15 13:46:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-15 13:46:53,071 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 [2022-03-15 13:46:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:46:53,400 INFO L225 Difference]: With dead ends: 88670 [2022-03-15 13:46:53,400 INFO L226 Difference]: Without dead ends: 88670 [2022-03-15 13:46:53,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4714 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3611, Invalid=12901, Unknown=0, NotChecked=0, Total=16512 [2022-03-15 13:46:53,401 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 2673 mSDsluCounter, 6416 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2673 SdHoareTripleChecker+Valid, 6835 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:46:53,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2673 Valid, 6835 Invalid, 2693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-15 13:46:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88670 states. [2022-03-15 13:46:54,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88670 to 40424. [2022-03-15 13:46:54,511 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) [2022-03-15 13:46:54,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-03-15 13:46:54,607 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-03-15 13:46:54,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:46:54,607 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-03-15 13:46:54,607 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) [2022-03-15 13:46:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-03-15 13:46:54,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:46:54,650 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:46:54,650 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] [2022-03-15 13:46:54,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-15 13:46:54,650 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:46:54,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:46:54,650 INFO L85 PathProgramCache]: Analyzing trace with hash 351587410, now seen corresponding path program 25 times [2022-03-15 13:46:54,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:46:54,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703839436] [2022-03-15 13:46:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:46:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:46:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:46:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:46:55,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:46:55,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703839436] [2022-03-15 13:46:55,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703839436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:46:55,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:46:55,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:46:55,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481355612] [2022-03-15 13:46:55,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:46:55,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:46:55,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:46:55,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:46:55,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:46:55,255 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) [2022-03-15 13:47:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:00,976 INFO L93 Difference]: Finished difference Result 83368 states and 229967 transitions. [2022-03-15 13:47:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-15 13:47:00,976 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 [2022-03-15 13:47:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:01,163 INFO L225 Difference]: With dead ends: 83368 [2022-03-15 13:47:01,163 INFO L226 Difference]: Without dead ends: 83368 [2022-03-15 13:47:01,164 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 [2022-03-15 13:47:01,164 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2530 mSDsluCounter, 8063 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:47:01,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2530 Valid, 8589 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 13:47:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83368 states. [2022-03-15 13:47:02,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83368 to 40428. [2022-03-15 13:47:02,374 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) [2022-03-15 13:47:02,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-03-15 13:47:02,462 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-03-15 13:47:02,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:02,462 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-03-15 13:47:02,462 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) [2022-03-15 13:47:02,462 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-03-15 13:47:02,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:02,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:02,502 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] [2022-03-15 13:47:02,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-15 13:47:02,502 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash -2123075832, now seen corresponding path program 26 times [2022-03-15 13:47:02,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:02,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099166386] [2022-03-15 13:47:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:02,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:03,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:03,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099166386] [2022-03-15 13:47:03,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099166386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:03,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:03,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:47:03,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184141056] [2022-03-15 13:47:03,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:03,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:47:03,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:03,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:47:03,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:47:03,133 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) [2022-03-15 13:47:10,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:10,124 INFO L93 Difference]: Finished difference Result 64249 states and 177999 transitions. [2022-03-15 13:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-03-15 13:47:10,125 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 [2022-03-15 13:47:10,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:10,280 INFO L225 Difference]: With dead ends: 64249 [2022-03-15 13:47:10,280 INFO L226 Difference]: Without dead ends: 64249 [2022-03-15 13:47:10,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7970 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=5464, Invalid=20618, Unknown=0, NotChecked=0, Total=26082 [2022-03-15 13:47:10,281 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 [2022-03-15 13:47:10,281 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] [2022-03-15 13:47:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64249 states. [2022-03-15 13:47:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64249 to 40420. [2022-03-15 13:47:11,183 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) [2022-03-15 13:47:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40420 states to 40420 states and 113012 transitions. [2022-03-15 13:47:11,278 INFO L78 Accepts]: Start accepts. Automaton has 40420 states and 113012 transitions. Word has length 231 [2022-03-15 13:47:11,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:11,279 INFO L470 AbstractCegarLoop]: Abstraction has 40420 states and 113012 transitions. [2022-03-15 13:47:11,279 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) [2022-03-15 13:47:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 40420 states and 113012 transitions. [2022-03-15 13:47:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:11,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:11,321 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] [2022-03-15 13:47:11,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-15 13:47:11,321 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash -433375326, now seen corresponding path program 27 times [2022-03-15 13:47:11,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:11,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786982957] [2022-03-15 13:47:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:11,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:11,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786982957] [2022-03-15 13:47:11,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786982957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:11,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:11,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-15 13:47:11,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123515825] [2022-03-15 13:47:11,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:11,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 13:47:11,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:11,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 13:47:11,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:47:11,972 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) [2022-03-15 13:47:13,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:13,681 INFO L93 Difference]: Finished difference Result 63408 states and 175899 transitions. [2022-03-15 13:47:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-15 13:47:13,682 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 [2022-03-15 13:47:13,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:13,966 INFO L225 Difference]: With dead ends: 63408 [2022-03-15 13:47:13,967 INFO L226 Difference]: Without dead ends: 63408 [2022-03-15 13:47:13,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1046, Invalid=3244, Unknown=0, NotChecked=0, Total=4290 [2022-03-15 13:47:13,967 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 [2022-03-15 13:47:13,967 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] [2022-03-15 13:47:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63408 states. [2022-03-15 13:47:14,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63408 to 40428. [2022-03-15 13:47:14,784 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) [2022-03-15 13:47:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-03-15 13:47:14,880 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-03-15 13:47:14,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:14,880 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-03-15 13:47:14,880 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) [2022-03-15 13:47:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-03-15 13:47:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:14,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:14,922 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] [2022-03-15 13:47:14,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-15 13:47:14,923 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1386928728, now seen corresponding path program 28 times [2022-03-15 13:47:14,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:14,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957987104] [2022-03-15 13:47:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:14,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:15,412 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:15,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:15,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957987104] [2022-03-15 13:47:15,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957987104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:15,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:15,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-15 13:47:15,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927944362] [2022-03-15 13:47:15,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:15,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-15 13:47:15,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:15,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-15 13:47:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:47:15,414 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) [2022-03-15 13:47:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:21,387 INFO L93 Difference]: Finished difference Result 65693 states and 182026 transitions. [2022-03-15 13:47:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-15 13:47:21,387 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 [2022-03-15 13:47:21,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:21,541 INFO L225 Difference]: With dead ends: 65693 [2022-03-15 13:47:21,541 INFO L226 Difference]: Without dead ends: 65693 [2022-03-15 13:47:21,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8306 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=5687, Invalid=20719, Unknown=0, NotChecked=0, Total=26406 [2022-03-15 13:47:21,542 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 2566 mSDsluCounter, 7918 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:47:21,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2566 Valid, 8450 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-15 13:47:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65693 states. [2022-03-15 13:47:22,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65693 to 40424. [2022-03-15 13:47:22,506 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) [2022-03-15 13:47:22,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-03-15 13:47:22,603 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-03-15 13:47:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:22,603 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-03-15 13:47:22,603 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) [2022-03-15 13:47:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-03-15 13:47:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:22,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:22,644 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] [2022-03-15 13:47:22,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-15 13:47:22,644 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:22,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1633040716, now seen corresponding path program 29 times [2022-03-15 13:47:22,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:22,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928540594] [2022-03-15 13:47:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:22,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:23,372 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:23,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:23,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928540594] [2022-03-15 13:47:23,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928540594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:23,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:23,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-15 13:47:23,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320915114] [2022-03-15 13:47:23,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:23,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-15 13:47:23,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:23,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-15 13:47:23,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:47:23,374 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) [2022-03-15 13:47:29,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:29,524 INFO L93 Difference]: Finished difference Result 64532 states and 178605 transitions. [2022-03-15 13:47:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-15 13:47:29,524 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 [2022-03-15 13:47:29,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:29,750 INFO L225 Difference]: With dead ends: 64532 [2022-03-15 13:47:29,751 INFO L226 Difference]: Without dead ends: 64532 [2022-03-15 13:47:29,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9010 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=5961, Invalid=22095, Unknown=0, NotChecked=0, Total=28056 [2022-03-15 13:47:29,752 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, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:47:29,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2410 Valid, 9777 Invalid, 3570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3559 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-15 13:47:29,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64532 states. [2022-03-15 13:47:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64532 to 40368. [2022-03-15 13:47:30,573 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) [2022-03-15 13:47:30,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40368 states to 40368 states and 112865 transitions. [2022-03-15 13:47:30,670 INFO L78 Accepts]: Start accepts. Automaton has 40368 states and 112865 transitions. Word has length 231 [2022-03-15 13:47:30,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:30,670 INFO L470 AbstractCegarLoop]: Abstraction has 40368 states and 112865 transitions. [2022-03-15 13:47:30,670 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) [2022-03-15 13:47:30,670 INFO L276 IsEmpty]: Start isEmpty. Operand 40368 states and 112865 transitions. [2022-03-15 13:47:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:30,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:30,713 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] [2022-03-15 13:47:30,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-15 13:47:30,713 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:30,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:30,713 INFO L85 PathProgramCache]: Analyzing trace with hash 222172088, now seen corresponding path program 30 times [2022-03-15 13:47:30,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:30,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297287232] [2022-03-15 13:47:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:30,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:31,352 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:31,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:31,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297287232] [2022-03-15 13:47:31,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297287232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:31,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:31,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:47:31,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471226086] [2022-03-15 13:47:31,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:31,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:47:31,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:47:31,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:47:31,353 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) [2022-03-15 13:47:38,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:38,412 INFO L93 Difference]: Finished difference Result 70553 states and 194269 transitions. [2022-03-15 13:47:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-15 13:47:38,412 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 [2022-03-15 13:47:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:38,586 INFO L225 Difference]: With dead ends: 70553 [2022-03-15 13:47:38,586 INFO L226 Difference]: Without dead ends: 70081 [2022-03-15 13:47:38,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8163 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=4981, Invalid=20779, Unknown=0, NotChecked=0, Total=25760 [2022-03-15 13:47:38,587 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 3087 mSDsluCounter, 8806 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:47:38,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3087 Valid, 9284 Invalid, 3558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 13:47:38,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70081 states. [2022-03-15 13:47:39,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70081 to 40620. [2022-03-15 13:47:39,651 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) [2022-03-15 13:47:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40620 states to 40620 states and 113614 transitions. [2022-03-15 13:47:39,748 INFO L78 Accepts]: Start accepts. Automaton has 40620 states and 113614 transitions. Word has length 231 [2022-03-15 13:47:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:39,748 INFO L470 AbstractCegarLoop]: Abstraction has 40620 states and 113614 transitions. [2022-03-15 13:47:39,748 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) [2022-03-15 13:47:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 40620 states and 113614 transitions. [2022-03-15 13:47:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:39,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:39,790 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] [2022-03-15 13:47:39,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-15 13:47:39,790 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:39,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:39,791 INFO L85 PathProgramCache]: Analyzing trace with hash -925353094, now seen corresponding path program 31 times [2022-03-15 13:47:39,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:39,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505320728] [2022-03-15 13:47:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:39,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:40,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:40,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505320728] [2022-03-15 13:47:40,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505320728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:40,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:40,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:47:40,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495811737] [2022-03-15 13:47:40,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:40,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:47:40,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:40,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:47:40,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:47:40,557 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) [2022-03-15 13:47:50,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:50,845 INFO L93 Difference]: Finished difference Result 74359 states and 204463 transitions. [2022-03-15 13:47:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-03-15 13:47:50,846 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 [2022-03-15 13:47:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:51,110 INFO L225 Difference]: With dead ends: 74359 [2022-03-15 13:47:51,111 INFO L226 Difference]: Without dead ends: 73330 [2022-03-15 13:47:51,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16609 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=7995, Invalid=39747, Unknown=0, NotChecked=0, Total=47742 [2022-03-15 13:47:51,112 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, 2.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:47:51,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3755 Valid, 11634 Invalid, 4841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4803 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-15 13:47:51,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73330 states. [2022-03-15 13:47:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73330 to 40516. [2022-03-15 13:47:52,104 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) [2022-03-15 13:47:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40516 states to 40516 states and 113284 transitions. [2022-03-15 13:47:52,203 INFO L78 Accepts]: Start accepts. Automaton has 40516 states and 113284 transitions. Word has length 231 [2022-03-15 13:47:52,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:52,203 INFO L470 AbstractCegarLoop]: Abstraction has 40516 states and 113284 transitions. [2022-03-15 13:47:52,204 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) [2022-03-15 13:47:52,204 INFO L276 IsEmpty]: Start isEmpty. Operand 40516 states and 113284 transitions. [2022-03-15 13:47:52,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:52,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:52,251 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] [2022-03-15 13:47:52,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-15 13:47:52,252 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:52,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1440679928, now seen corresponding path program 32 times [2022-03-15 13:47:52,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:52,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958566627] [2022-03-15 13:47:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:52,575 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:52,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:52,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958566627] [2022-03-15 13:47:52,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958566627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:52,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:52,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:47:52,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888345770] [2022-03-15 13:47:52,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:52,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:47:52,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:52,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:47:52,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:47:52,576 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) [2022-03-15 13:47:53,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:47:53,781 INFO L93 Difference]: Finished difference Result 56312 states and 155881 transitions. [2022-03-15 13:47:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 13:47:53,781 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 [2022-03-15 13:47:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:47:53,919 INFO L225 Difference]: With dead ends: 56312 [2022-03-15 13:47:53,919 INFO L226 Difference]: Without dead ends: 56312 [2022-03-15 13:47:53,919 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 [2022-03-15 13:47:53,920 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 [2022-03-15 13:47:53,920 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] [2022-03-15 13:47:53,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56312 states. [2022-03-15 13:47:54,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56312 to 40520. [2022-03-15 13:47:54,826 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) [2022-03-15 13:47:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-03-15 13:47:54,927 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-03-15 13:47:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:47:54,928 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-03-15 13:47:54,928 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) [2022-03-15 13:47:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-03-15 13:47:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:47:54,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:47:54,974 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] [2022-03-15 13:47:54,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-15 13:47:54,975 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:47:54,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:47:54,975 INFO L85 PathProgramCache]: Analyzing trace with hash 544713298, now seen corresponding path program 33 times [2022-03-15 13:47:54,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:47:54,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500121113] [2022-03-15 13:47:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:47:54,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:47:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:47:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:47:55,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:47:55,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500121113] [2022-03-15 13:47:55,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500121113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:47:55,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:47:55,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:47:55,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630742337] [2022-03-15 13:47:55,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:47:55,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:47:55,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:47:55,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:47:55,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:47:55,594 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) [2022-03-15 13:48:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:02,631 INFO L93 Difference]: Finished difference Result 71077 states and 195830 transitions. [2022-03-15 13:48:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-15 13:48:02,632 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 [2022-03-15 13:48:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:02,794 INFO L225 Difference]: With dead ends: 71077 [2022-03-15 13:48:02,794 INFO L226 Difference]: Without dead ends: 70605 [2022-03-15 13:48:02,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8484 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=5483, Invalid=20923, Unknown=0, NotChecked=0, Total=26406 [2022-03-15 13:48:02,795 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, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:02,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2616 Valid, 9335 Invalid, 3598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 13:48:02,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70605 states. [2022-03-15 13:48:03,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70605 to 40540. [2022-03-15 13:48:03,928 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) [2022-03-15 13:48:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40540 states to 40540 states and 113350 transitions. [2022-03-15 13:48:04,018 INFO L78 Accepts]: Start accepts. Automaton has 40540 states and 113350 transitions. Word has length 231 [2022-03-15 13:48:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:04,018 INFO L470 AbstractCegarLoop]: Abstraction has 40540 states and 113350 transitions. [2022-03-15 13:48:04,018 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) [2022-03-15 13:48:04,018 INFO L276 IsEmpty]: Start isEmpty. Operand 40540 states and 113350 transitions. [2022-03-15 13:48:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:48:04,060 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:04,060 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] [2022-03-15 13:48:04,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-15 13:48:04,060 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:04,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:04,061 INFO L85 PathProgramCache]: Analyzing trace with hash -602811884, now seen corresponding path program 34 times [2022-03-15 13:48:04,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:04,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884836033] [2022-03-15 13:48:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:04,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:48:04,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:04,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884836033] [2022-03-15 13:48:04,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884836033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:04,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:04,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:48:04,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238845273] [2022-03-15 13:48:04,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:04,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:48:04,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:04,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:48:04,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:48:04,700 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) [2022-03-15 13:48:13,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:13,766 INFO L93 Difference]: Finished difference Result 72360 states and 199618 transitions. [2022-03-15 13:48:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-03-15 13:48:13,766 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 [2022-03-15 13:48:13,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:13,945 INFO L225 Difference]: With dead ends: 72360 [2022-03-15 13:48:13,945 INFO L226 Difference]: Without dead ends: 71835 [2022-03-15 13:48:13,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11836 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=7203, Invalid=28329, Unknown=0, NotChecked=0, Total=35532 [2022-03-15 13:48:13,947 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 [2022-03-15 13:48:13,947 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] [2022-03-15 13:48:14,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71835 states. [2022-03-15 13:48:14,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71835 to 40596. [2022-03-15 13:48:14,929 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) [2022-03-15 13:48:15,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40596 states to 40596 states and 113504 transitions. [2022-03-15 13:48:15,209 INFO L78 Accepts]: Start accepts. Automaton has 40596 states and 113504 transitions. Word has length 231 [2022-03-15 13:48:15,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:15,209 INFO L470 AbstractCegarLoop]: Abstraction has 40596 states and 113504 transitions. [2022-03-15 13:48:15,210 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) [2022-03-15 13:48:15,210 INFO L276 IsEmpty]: Start isEmpty. Operand 40596 states and 113504 transitions. [2022-03-15 13:48:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:48:15,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:15,251 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] [2022-03-15 13:48:15,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-15 13:48:15,251 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:15,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1763221138, now seen corresponding path program 35 times [2022-03-15 13:48:15,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:15,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330796662] [2022-03-15 13:48:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:48:15,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:15,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330796662] [2022-03-15 13:48:15,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330796662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:15,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:15,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:48:15,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029247514] [2022-03-15 13:48:15,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:15,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:48:15,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:15,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:48:15,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:48:15,741 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) [2022-03-15 13:48:24,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:24,167 INFO L93 Difference]: Finished difference Result 85678 states and 237922 transitions. [2022-03-15 13:48:24,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-15 13:48:24,167 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 [2022-03-15 13:48:24,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:24,366 INFO L225 Difference]: With dead ends: 85678 [2022-03-15 13:48:24,366 INFO L226 Difference]: Without dead ends: 85678 [2022-03-15 13:48:24,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10426 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=6416, Invalid=25090, Unknown=0, NotChecked=0, Total=31506 [2022-03-15 13:48:24,368 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 2865 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 3831 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:24,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2865 Valid, 9734 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3831 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 13:48:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85678 states. [2022-03-15 13:48:25,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85678 to 40524. [2022-03-15 13:48:25,493 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) [2022-03-15 13:48:25,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113306 transitions. [2022-03-15 13:48:25,589 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113306 transitions. Word has length 231 [2022-03-15 13:48:25,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:25,589 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113306 transitions. [2022-03-15 13:48:25,589 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) [2022-03-15 13:48:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113306 transitions. [2022-03-15 13:48:25,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:48:25,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:25,631 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] [2022-03-15 13:48:25,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-15 13:48:25,632 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:25,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:25,632 INFO L85 PathProgramCache]: Analyzing trace with hash -313441896, now seen corresponding path program 36 times [2022-03-15 13:48:25,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:25,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759651043] [2022-03-15 13:48:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:25,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:48:26,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:26,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759651043] [2022-03-15 13:48:26,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759651043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:26,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:26,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:48:26,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368323380] [2022-03-15 13:48:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:26,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:48:26,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:26,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:48:26,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:48:26,099 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) [2022-03-15 13:48:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:32,063 INFO L93 Difference]: Finished difference Result 76392 states and 210307 transitions. [2022-03-15 13:48:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-15 13:48:32,064 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 [2022-03-15 13:48:32,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:32,336 INFO L225 Difference]: With dead ends: 76392 [2022-03-15 13:48:32,336 INFO L226 Difference]: Without dead ends: 76392 [2022-03-15 13:48:32,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6116 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4174, Invalid=16418, Unknown=0, NotChecked=0, Total=20592 [2022-03-15 13:48:32,337 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, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:48:32,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2418 Valid, 10368 Invalid, 4144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4125 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-15 13:48:32,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76392 states. [2022-03-15 13:48:33,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76392 to 40528. [2022-03-15 13:48:33,335 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) [2022-03-15 13:48:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113325 transitions. [2022-03-15 13:48:33,432 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113325 transitions. Word has length 231 [2022-03-15 13:48:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:33,432 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113325 transitions. [2022-03-15 13:48:33,432 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) [2022-03-15 13:48:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113325 transitions. [2022-03-15 13:48:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:48:33,473 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:33,474 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] [2022-03-15 13:48:33,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-15 13:48:33,474 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:33,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:33,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1506862158, now seen corresponding path program 37 times [2022-03-15 13:48:33,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:33,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685177629] [2022-03-15 13:48:33,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:33,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:48:33,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:33,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685177629] [2022-03-15 13:48:33,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685177629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:33,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:33,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-15 13:48:33,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405095248] [2022-03-15 13:48:33,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:33,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 13:48:33,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:33,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 13:48:33,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:48:33,784 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) [2022-03-15 13:48:34,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:34,944 INFO L93 Difference]: Finished difference Result 56780 states and 157222 transitions. [2022-03-15 13:48:34,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-15 13:48:34,945 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 [2022-03-15 13:48:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:35,087 INFO L225 Difference]: With dead ends: 56780 [2022-03-15 13:48:35,087 INFO L226 Difference]: Without dead ends: 56780 [2022-03-15 13:48:35,087 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 [2022-03-15 13:48:35,087 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 [2022-03-15 13:48:35,087 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] [2022-03-15 13:48:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56780 states. [2022-03-15 13:48:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56780 to 40520. [2022-03-15 13:48:35,985 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) [2022-03-15 13:48:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-03-15 13:48:36,076 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-03-15 13:48:36,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:36,076 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-03-15 13:48:36,076 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) [2022-03-15 13:48:36,076 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-03-15 13:48:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:48:36,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:36,118 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] [2022-03-15 13:48:36,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-15 13:48:36,118 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:36,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1168755266, now seen corresponding path program 38 times [2022-03-15 13:48:36,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:36,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506407960] [2022-03-15 13:48:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:36,950 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:48:36,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:36,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506407960] [2022-03-15 13:48:36,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506407960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:36,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:36,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:48:36,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765554298] [2022-03-15 13:48:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:36,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:48:36,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:48:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:48:36,951 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) [2022-03-15 13:48:47,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:47,118 INFO L93 Difference]: Finished difference Result 71429 states and 196822 transitions. [2022-03-15 13:48:47,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2022-03-15 13:48:47,119 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 [2022-03-15 13:48:47,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:47,260 INFO L225 Difference]: With dead ends: 71429 [2022-03-15 13:48:47,261 INFO L226 Difference]: Without dead ends: 70957 [2022-03-15 13:48:47,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14015 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=8003, Invalid=32599, Unknown=0, NotChecked=0, Total=40602 [2022-03-15 13:48:47,262 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 [2022-03-15 13:48:47,262 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] [2022-03-15 13:48:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70957 states. [2022-03-15 13:48:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70957 to 40544. [2022-03-15 13:48:48,175 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) [2022-03-15 13:48:48,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40544 states to 40544 states and 113361 transitions. [2022-03-15 13:48:48,261 INFO L78 Accepts]: Start accepts. Automaton has 40544 states and 113361 transitions. Word has length 231 [2022-03-15 13:48:48,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:48,261 INFO L470 AbstractCegarLoop]: Abstraction has 40544 states and 113361 transitions. [2022-03-15 13:48:48,261 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) [2022-03-15 13:48:48,261 INFO L276 IsEmpty]: Start isEmpty. Operand 40544 states and 113361 transitions. [2022-03-15 13:48:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:48:48,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:48,298 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] [2022-03-15 13:48:48,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-15 13:48:48,298 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:48,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1978686848, now seen corresponding path program 39 times [2022-03-15 13:48:48,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:48,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777259414] [2022-03-15 13:48:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:48:48,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:48,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777259414] [2022-03-15 13:48:48,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777259414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:48,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:48,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-15 13:48:48,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910802160] [2022-03-15 13:48:48,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:48,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-15 13:48:48,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:48,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-15 13:48:48,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:48:48,913 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) [2022-03-15 13:48:50,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:50,860 INFO L93 Difference]: Finished difference Result 57880 states and 160293 transitions. [2022-03-15 13:48:50,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-15 13:48:50,861 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 [2022-03-15 13:48:50,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:48:50,978 INFO L225 Difference]: With dead ends: 57880 [2022-03-15 13:48:50,978 INFO L226 Difference]: Without dead ends: 57880 [2022-03-15 13:48:50,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1132, Invalid=3560, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 13:48:50,979 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 [2022-03-15 13:48:50,979 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] [2022-03-15 13:48:51,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57880 states. [2022-03-15 13:48:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57880 to 40528. [2022-03-15 13:48:51,673 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) [2022-03-15 13:48:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113317 transitions. [2022-03-15 13:48:51,761 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113317 transitions. Word has length 231 [2022-03-15 13:48:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:48:51,761 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113317 transitions. [2022-03-15 13:48:51,761 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) [2022-03-15 13:48:51,761 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113317 transitions. [2022-03-15 13:48:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:48:51,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:48:51,801 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] [2022-03-15 13:48:51,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-15 13:48:51,801 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:48:51,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:48:51,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2026910460, now seen corresponding path program 40 times [2022-03-15 13:48:51,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:48:51,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723037382] [2022-03-15 13:48:51,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:48:51,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:48:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:48:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:48:52,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:48:52,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723037382] [2022-03-15 13:48:52,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723037382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:48:52,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:48:52,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:48:52,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837543410] [2022-03-15 13:48:52,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:48:52,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:48:52,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:48:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:48:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:48:52,462 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) [2022-03-15 13:48:59,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:48:59,871 INFO L93 Difference]: Finished difference Result 78576 states and 216461 transitions. [2022-03-15 13:48:59,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-03-15 13:48:59,872 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 [2022-03-15 13:48:59,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:00,040 INFO L225 Difference]: With dead ends: 78576 [2022-03-15 13:49:00,040 INFO L226 Difference]: Without dead ends: 78576 [2022-03-15 13:49:00,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10907 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=6530, Invalid=25690, Unknown=0, NotChecked=0, Total=32220 [2022-03-15 13:49:00,041 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 2418 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 4292 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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 [2022-03-15 13:49:00,042 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] [2022-03-15 13:49:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78576 states. [2022-03-15 13:49:00,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78576 to 40532. [2022-03-15 13:49:00,984 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) [2022-03-15 13:49:01,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40532 states to 40532 states and 113336 transitions. [2022-03-15 13:49:01,069 INFO L78 Accepts]: Start accepts. Automaton has 40532 states and 113336 transitions. Word has length 231 [2022-03-15 13:49:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:01,070 INFO L470 AbstractCegarLoop]: Abstraction has 40532 states and 113336 transitions. [2022-03-15 13:49:01,070 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) [2022-03-15 13:49:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand 40532 states and 113336 transitions. [2022-03-15 13:49:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:01,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:01,108 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] [2022-03-15 13:49:01,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-15 13:49:01,108 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash -206606406, now seen corresponding path program 41 times [2022-03-15 13:49:01,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:01,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932545010] [2022-03-15 13:49:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:01,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:01,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932545010] [2022-03-15 13:49:01,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932545010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:01,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:01,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-15 13:49:01,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548046948] [2022-03-15 13:49:01,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:01,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-15 13:49:01,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:01,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-15 13:49:01,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-03-15 13:49:01,792 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) [2022-03-15 13:49:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:07,242 INFO L93 Difference]: Finished difference Result 60249 states and 166719 transitions. [2022-03-15 13:49:07,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-15 13:49:07,243 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 [2022-03-15 13:49:07,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:07,373 INFO L225 Difference]: With dead ends: 60249 [2022-03-15 13:49:07,373 INFO L226 Difference]: Without dead ends: 60249 [2022-03-15 13:49:07,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5781 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4366, Invalid=15374, Unknown=0, NotChecked=0, Total=19740 [2022-03-15 13:49:07,374 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 [2022-03-15 13:49:07,374 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] [2022-03-15 13:49:07,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60249 states. [2022-03-15 13:49:08,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60249 to 40524. [2022-03-15 13:49:08,195 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) [2022-03-15 13:49:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113302 transitions. [2022-03-15 13:49:08,285 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113302 transitions. Word has length 231 [2022-03-15 13:49:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:08,285 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113302 transitions. [2022-03-15 13:49:08,285 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) [2022-03-15 13:49:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113302 transitions. [2022-03-15 13:49:08,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:08,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:08,325 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] [2022-03-15 13:49:08,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-15 13:49:08,325 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:08,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1483094100, now seen corresponding path program 42 times [2022-03-15 13:49:08,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:08,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169451182] [2022-03-15 13:49:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:08,901 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:08,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:08,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169451182] [2022-03-15 13:49:08,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169451182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:08,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:08,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-15 13:49:08,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146577090] [2022-03-15 13:49:08,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:08,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 13:49:08,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:08,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 13:49:08,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:49:08,903 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) [2022-03-15 13:49:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:17,326 INFO L93 Difference]: Finished difference Result 76584 states and 210839 transitions. [2022-03-15 13:49:17,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-15 13:49:17,326 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 [2022-03-15 13:49:17,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:17,483 INFO L225 Difference]: With dead ends: 76584 [2022-03-15 13:49:17,483 INFO L226 Difference]: Without dead ends: 76584 [2022-03-15 13:49:17,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10248 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=6247, Invalid=25615, Unknown=0, NotChecked=0, Total=31862 [2022-03-15 13:49:17,485 INFO L933 BasicCegarLoop]: 761 mSDtfsCounter, 2655 mSDsluCounter, 10196 mSDsCounter, 0 mSdLazyCounter, 4360 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 10744 SdHoareTripleChecker+Invalid, 4380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:17,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2655 Valid, 10744 Invalid, 4380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4360 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-15 13:49:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76584 states. [2022-03-15 13:49:18,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76584 to 40532. [2022-03-15 13:49:18,388 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) [2022-03-15 13:49:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40532 states to 40532 states and 113336 transitions. [2022-03-15 13:49:18,478 INFO L78 Accepts]: Start accepts. Automaton has 40532 states and 113336 transitions. Word has length 231 [2022-03-15 13:49:18,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:18,478 INFO L470 AbstractCegarLoop]: Abstraction has 40532 states and 113336 transitions. [2022-03-15 13:49:18,478 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) [2022-03-15 13:49:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 40532 states and 113336 transitions. [2022-03-15 13:49:18,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:18,518 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:18,518 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] [2022-03-15 13:49:18,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-15 13:49:18,518 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:18,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:18,518 INFO L85 PathProgramCache]: Analyzing trace with hash -991569142, now seen corresponding path program 43 times [2022-03-15 13:49:18,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:18,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22991306] [2022-03-15 13:49:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:18,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:19,189 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:19,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:19,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22991306] [2022-03-15 13:49:19,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22991306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:19,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:19,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-15 13:49:19,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309041437] [2022-03-15 13:49:19,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:19,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-15 13:49:19,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:19,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-15 13:49:19,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:49:19,190 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) [2022-03-15 13:49:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:24,381 INFO L93 Difference]: Finished difference Result 59681 states and 165037 transitions. [2022-03-15 13:49:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-15 13:49:24,382 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 [2022-03-15 13:49:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:24,515 INFO L225 Difference]: With dead ends: 59681 [2022-03-15 13:49:24,516 INFO L226 Difference]: Without dead ends: 59681 [2022-03-15 13:49:24,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5053 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4048, Invalid=14042, Unknown=0, NotChecked=0, Total=18090 [2022-03-15 13:49:24,517 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 [2022-03-15 13:49:24,517 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] [2022-03-15 13:49:24,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59681 states. [2022-03-15 13:49:25,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59681 to 40528. [2022-03-15 13:49:25,349 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) [2022-03-15 13:49:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113317 transitions. [2022-03-15 13:49:25,443 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113317 transitions. Word has length 231 [2022-03-15 13:49:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:25,443 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113317 transitions. [2022-03-15 13:49:25,443 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) [2022-03-15 13:49:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113317 transitions. [2022-03-15 13:49:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:25,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:25,485 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] [2022-03-15 13:49:25,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-15 13:49:25,485 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:25,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash -745457154, now seen corresponding path program 44 times [2022-03-15 13:49:25,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:25,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881670672] [2022-03-15 13:49:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:25,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:26,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:26,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881670672] [2022-03-15 13:49:26,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881670672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:26,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:26,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-15 13:49:26,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36805184] [2022-03-15 13:49:26,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:26,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 13:49:26,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:26,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 13:49:26,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:49:26,285 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) [2022-03-15 13:49:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:33,175 INFO L93 Difference]: Finished difference Result 58359 states and 161397 transitions. [2022-03-15 13:49:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-15 13:49:33,176 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 [2022-03-15 13:49:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:33,313 INFO L225 Difference]: With dead ends: 58359 [2022-03-15 13:49:33,313 INFO L226 Difference]: Without dead ends: 58359 [2022-03-15 13:49:33,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7147 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=5201, Invalid=19291, Unknown=0, NotChecked=0, Total=24492 [2022-03-15 13:49:33,314 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 [2022-03-15 13:49:33,314 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] [2022-03-15 13:49:33,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58359 states. [2022-03-15 13:49:34,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58359 to 40520. [2022-03-15 13:49:34,205 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) [2022-03-15 13:49:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-03-15 13:49:34,307 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-03-15 13:49:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:34,307 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-03-15 13:49:34,307 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) [2022-03-15 13:49:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-03-15 13:49:34,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:34,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:34,354 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] [2022-03-15 13:49:34,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-15 13:49:34,354 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:34,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:34,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2116950654, now seen corresponding path program 45 times [2022-03-15 13:49:34,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:34,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054334923] [2022-03-15 13:49:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:34,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:34,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:34,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054334923] [2022-03-15 13:49:34,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054334923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:34,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:34,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:34,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753952861] [2022-03-15 13:49:34,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:34,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:34,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:34,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:34,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:34,775 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) [2022-03-15 13:49:36,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:36,262 INFO L93 Difference]: Finished difference Result 56678 states and 156913 transitions. [2022-03-15 13:49:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-15 13:49:36,263 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 [2022-03-15 13:49:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:36,387 INFO L225 Difference]: With dead ends: 56678 [2022-03-15 13:49:36,387 INFO L226 Difference]: Without dead ends: 56029 [2022-03-15 13:49:36,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 13:49:36,388 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 [2022-03-15 13:49:36,388 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] [2022-03-15 13:49:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56029 states. [2022-03-15 13:49:37,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56029 to 40520. [2022-03-15 13:49:37,232 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) [2022-03-15 13:49:37,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113255 transitions. [2022-03-15 13:49:37,331 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113255 transitions. Word has length 231 [2022-03-15 13:49:37,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:37,331 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113255 transitions. [2022-03-15 13:49:37,331 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) [2022-03-15 13:49:37,331 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113255 transitions. [2022-03-15 13:49:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:37,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:37,376 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] [2022-03-15 13:49:37,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-15 13:49:37,376 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:37,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:37,376 INFO L85 PathProgramCache]: Analyzing trace with hash -897731330, now seen corresponding path program 46 times [2022-03-15 13:49:37,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:37,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140290007] [2022-03-15 13:49:37,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:37,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:38,013 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:38,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:38,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140290007] [2022-03-15 13:49:38,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140290007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:38,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:38,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:38,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646923376] [2022-03-15 13:49:38,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:38,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:38,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:38,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:38,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:38,015 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) [2022-03-15 13:49:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:39,481 INFO L93 Difference]: Finished difference Result 57928 states and 160650 transitions. [2022-03-15 13:49:39,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:49:39,481 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 [2022-03-15 13:49:39,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:39,616 INFO L225 Difference]: With dead ends: 57928 [2022-03-15 13:49:39,616 INFO L226 Difference]: Without dead ends: 57928 [2022-03-15 13:49:39,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=724, Invalid=2138, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:49:39,617 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 [2022-03-15 13:49:39,617 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] [2022-03-15 13:49:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57928 states. [2022-03-15 13:49:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57928 to 40528. [2022-03-15 13:49:40,550 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) [2022-03-15 13:49:40,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113289 transitions. [2022-03-15 13:49:40,642 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113289 transitions. Word has length 231 [2022-03-15 13:49:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:40,642 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113289 transitions. [2022-03-15 13:49:40,642 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) [2022-03-15 13:49:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113289 transitions. [2022-03-15 13:49:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:40,685 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:40,685 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] [2022-03-15 13:49:40,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-15 13:49:40,686 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:40,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:40,686 INFO L85 PathProgramCache]: Analyzing trace with hash 922572724, now seen corresponding path program 47 times [2022-03-15 13:49:40,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:40,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488993377] [2022-03-15 13:49:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:40,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:41,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:41,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488993377] [2022-03-15 13:49:41,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488993377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:41,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:41,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:41,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765667155] [2022-03-15 13:49:41,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:41,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:41,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:41,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:41,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:41,084 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) [2022-03-15 13:49:42,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:42,457 INFO L93 Difference]: Finished difference Result 58148 states and 161261 transitions. [2022-03-15 13:49:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 13:49:42,458 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 [2022-03-15 13:49:42,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:42,590 INFO L225 Difference]: With dead ends: 58148 [2022-03-15 13:49:42,590 INFO L226 Difference]: Without dead ends: 58148 [2022-03-15 13:49:42,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=694, Invalid=2062, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:49:42,590 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 [2022-03-15 13:49:42,590 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] [2022-03-15 13:49:42,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58148 states. [2022-03-15 13:49:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58148 to 40524. [2022-03-15 13:49:43,545 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) [2022-03-15 13:49:43,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113270 transitions. [2022-03-15 13:49:43,650 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113270 transitions. Word has length 231 [2022-03-15 13:49:43,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:43,651 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113270 transitions. [2022-03-15 13:49:43,651 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) [2022-03-15 13:49:43,651 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113270 transitions. [2022-03-15 13:49:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:43,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:43,700 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] [2022-03-15 13:49:43,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-15 13:49:43,700 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:43,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:43,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1168684712, now seen corresponding path program 48 times [2022-03-15 13:49:43,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:43,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419869303] [2022-03-15 13:49:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:43,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:44,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:44,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419869303] [2022-03-15 13:49:44,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419869303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:44,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:44,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:44,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563267781] [2022-03-15 13:49:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:44,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:44,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:44,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:44,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:44,131 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) [2022-03-15 13:49:45,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:45,621 INFO L93 Difference]: Finished difference Result 58427 states and 161916 transitions. [2022-03-15 13:49:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-15 13:49:45,622 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 [2022-03-15 13:49:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:45,775 INFO L225 Difference]: With dead ends: 58427 [2022-03-15 13:49:45,775 INFO L226 Difference]: Without dead ends: 58427 [2022-03-15 13:49:45,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=720, Invalid=2142, Unknown=0, NotChecked=0, Total=2862 [2022-03-15 13:49:45,776 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, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:45,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 4822 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 13:49:45,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58427 states. [2022-03-15 13:49:46,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58427 to 40472. [2022-03-15 13:49:46,676 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) [2022-03-15 13:49:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113107 transitions. [2022-03-15 13:49:46,929 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113107 transitions. Word has length 231 [2022-03-15 13:49:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:46,929 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113107 transitions. [2022-03-15 13:49:46,930 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) [2022-03-15 13:49:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113107 transitions. [2022-03-15 13:49:46,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:46,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:46,975 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] [2022-03-15 13:49:46,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-15 13:49:46,975 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash 179518346, now seen corresponding path program 49 times [2022-03-15 13:49:46,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:46,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767992654] [2022-03-15 13:49:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:46,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:47,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:47,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767992654] [2022-03-15 13:49:47,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767992654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:47,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:47,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:47,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687418352] [2022-03-15 13:49:47,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:47,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:47,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:47,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:47,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:47,467 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) [2022-03-15 13:49:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:49,069 INFO L93 Difference]: Finished difference Result 58748 states and 162973 transitions. [2022-03-15 13:49:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-15 13:49:49,070 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 [2022-03-15 13:49:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:49,207 INFO L225 Difference]: With dead ends: 58748 [2022-03-15 13:49:49,207 INFO L226 Difference]: Without dead ends: 58748 [2022-03-15 13:49:49,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=866, Invalid=2556, Unknown=0, NotChecked=0, Total=3422 [2022-03-15 13:49:49,208 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1388 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-03-15 13:49:49,208 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] [2022-03-15 13:49:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58748 states. [2022-03-15 13:49:50,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58748 to 40480. [2022-03-15 13:49:50,174 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) [2022-03-15 13:49:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-15 13:49:50,287 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-15 13:49:50,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:50,287 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-15 13:49:50,287 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) [2022-03-15 13:49:50,287 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-15 13:49:50,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:50,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:50,335 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] [2022-03-15 13:49:50,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-15 13:49:50,336 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:50,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash -678636848, now seen corresponding path program 50 times [2022-03-15 13:49:50,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:50,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013971081] [2022-03-15 13:49:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:50,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:50,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013971081] [2022-03-15 13:49:50,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013971081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:50,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:50,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:50,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577078295] [2022-03-15 13:49:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:50,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:50,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:50,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:50,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:50,858 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) [2022-03-15 13:49:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:52,590 INFO L93 Difference]: Finished difference Result 59964 states and 166493 transitions. [2022-03-15 13:49:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:49:52,591 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 [2022-03-15 13:49:52,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:52,730 INFO L225 Difference]: With dead ends: 59964 [2022-03-15 13:49:52,730 INFO L226 Difference]: Without dead ends: 59964 [2022-03-15 13:49:52,730 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 [2022-03-15 13:49:52,731 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1321 mSDsluCounter, 4354 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:52,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 4737 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:49:52,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59964 states. [2022-03-15 13:49:53,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59964 to 40484. [2022-03-15 13:49:53,560 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) [2022-03-15 13:49:53,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-15 13:49:53,784 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-15 13:49:53,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:53,784 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-15 13:49:53,784 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) [2022-03-15 13:49:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-15 13:49:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:53,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:53,831 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] [2022-03-15 13:49:53,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-15 13:49:53,831 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:53,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:53,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1141667206, now seen corresponding path program 51 times [2022-03-15 13:49:53,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:53,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291557102] [2022-03-15 13:49:53,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:53,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:54,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:54,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291557102] [2022-03-15 13:49:54,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291557102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:54,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:54,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:54,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241371206] [2022-03-15 13:49:54,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:54,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:54,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:54,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:54,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:54,348 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) [2022-03-15 13:49:55,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:55,844 INFO L93 Difference]: Finished difference Result 59132 states and 164159 transitions. [2022-03-15 13:49:55,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:49:55,845 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 [2022-03-15 13:49:55,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:55,980 INFO L225 Difference]: With dead ends: 59132 [2022-03-15 13:49:55,980 INFO L226 Difference]: Without dead ends: 59132 [2022-03-15 13:49:55,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=782, Invalid=2298, Unknown=0, NotChecked=0, Total=3080 [2022-03-15 13:49:55,981 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 [2022-03-15 13:49:55,981 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] [2022-03-15 13:49:56,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59132 states. [2022-03-15 13:49:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59132 to 40476. [2022-03-15 13:49:56,888 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) [2022-03-15 13:49:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40476 states to 40476 states and 113118 transitions. [2022-03-15 13:49:56,986 INFO L78 Accepts]: Start accepts. Automaton has 40476 states and 113118 transitions. Word has length 231 [2022-03-15 13:49:56,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:49:56,986 INFO L470 AbstractCegarLoop]: Abstraction has 40476 states and 113118 transitions. [2022-03-15 13:49:56,986 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) [2022-03-15 13:49:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 40476 states and 113118 transitions. [2022-03-15 13:49:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:49:57,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:49:57,030 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] [2022-03-15 13:49:57,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-15 13:49:57,030 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:49:57,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:49:57,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1463599584, now seen corresponding path program 52 times [2022-03-15 13:49:57,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:49:57,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369830785] [2022-03-15 13:49:57,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:49:57,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:49:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:49:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:49:57,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:49:57,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369830785] [2022-03-15 13:49:57,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369830785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:49:57,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:49:57,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:49:57,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369576597] [2022-03-15 13:49:57,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:49:57,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:49:57,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:49:57,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:49:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:49:57,688 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) [2022-03-15 13:49:59,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:49:59,272 INFO L93 Difference]: Finished difference Result 60384 states and 167648 transitions. [2022-03-15 13:49:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:49:59,272 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 [2022-03-15 13:49:59,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:49:59,406 INFO L225 Difference]: With dead ends: 60384 [2022-03-15 13:49:59,406 INFO L226 Difference]: Without dead ends: 60384 [2022-03-15 13:49:59,407 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 [2022-03-15 13:49:59,407 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1354 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:49:59,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1354 Valid, 4265 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 13:49:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60384 states. [2022-03-15 13:50:00,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60384 to 40484. [2022-03-15 13:50:00,362 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) [2022-03-15 13:50:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-15 13:50:00,462 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-15 13:50:00,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:00,462 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-15 13:50:00,463 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) [2022-03-15 13:50:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-15 13:50:00,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:00,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:00,508 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] [2022-03-15 13:50:00,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-15 13:50:00,508 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:00,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:00,508 INFO L85 PathProgramCache]: Analyzing trace with hash 356704470, now seen corresponding path program 53 times [2022-03-15 13:50:00,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:00,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406427044] [2022-03-15 13:50:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:00,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:00,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:00,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406427044] [2022-03-15 13:50:00,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406427044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:00,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:00,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:00,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544165610] [2022-03-15 13:50:00,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:00,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:00,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:00,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:00,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:00,993 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) [2022-03-15 13:50:02,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:02,616 INFO L93 Difference]: Finished difference Result 60576 states and 168186 transitions. [2022-03-15 13:50:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 13:50:02,617 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 [2022-03-15 13:50:02,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:02,766 INFO L225 Difference]: With dead ends: 60576 [2022-03-15 13:50:02,767 INFO L226 Difference]: Without dead ends: 60576 [2022-03-15 13:50:02,767 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 [2022-03-15 13:50:02,768 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1226 mSDsluCounter, 4005 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:02,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 4390 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:50:02,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60576 states. [2022-03-15 13:50:03,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60576 to 40480. [2022-03-15 13:50:03,684 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) [2022-03-15 13:50:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-15 13:50:03,786 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-15 13:50:03,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:03,786 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-15 13:50:03,786 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) [2022-03-15 13:50:03,786 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-15 13:50:03,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:03,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:03,834 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] [2022-03-15 13:50:03,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-15 13:50:03,834 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:03,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:03,834 INFO L85 PathProgramCache]: Analyzing trace with hash 602816458, now seen corresponding path program 54 times [2022-03-15 13:50:03,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:03,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208667164] [2022-03-15 13:50:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:03,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:04,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:04,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:04,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208667164] [2022-03-15 13:50:04,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208667164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:04,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:04,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:04,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29579846] [2022-03-15 13:50:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:04,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:04,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:04,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:04,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:04,486 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) [2022-03-15 13:50:06,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:06,080 INFO L93 Difference]: Finished difference Result 59415 states and 164765 transitions. [2022-03-15 13:50:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 13:50:06,080 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 [2022-03-15 13:50:06,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:06,228 INFO L225 Difference]: With dead ends: 59415 [2022-03-15 13:50:06,228 INFO L226 Difference]: Without dead ends: 59415 [2022-03-15 13:50:06,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-03-15 13:50:06,229 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1368 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:06,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 4564 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 13:50:06,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59415 states. [2022-03-15 13:50:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59415 to 40424. [2022-03-15 13:50:07,146 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) [2022-03-15 13:50:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 112971 transitions. [2022-03-15 13:50:07,384 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 112971 transitions. Word has length 231 [2022-03-15 13:50:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:07,385 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 112971 transitions. [2022-03-15 13:50:07,385 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) [2022-03-15 13:50:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 112971 transitions. [2022-03-15 13:50:07,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:07,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:07,426 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, 1, 1, 1, 1] [2022-03-15 13:50:07,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-15 13:50:07,426 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:07,427 INFO L85 PathProgramCache]: Analyzing trace with hash -802389598, now seen corresponding path program 55 times [2022-03-15 13:50:07,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:07,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904741639] [2022-03-15 13:50:07,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:07,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:07,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:07,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904741639] [2022-03-15 13:50:07,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904741639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:07,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:07,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:07,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300811593] [2022-03-15 13:50:07,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:07,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:07,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:07,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:07,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:07,904 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) [2022-03-15 13:50:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:10,497 INFO L93 Difference]: Finished difference Result 67156 states and 185603 transitions. [2022-03-15 13:50:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-15 13:50:10,498 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 [2022-03-15 13:50:10,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:10,711 INFO L225 Difference]: With dead ends: 67156 [2022-03-15 13:50:10,711 INFO L226 Difference]: Without dead ends: 66364 [2022-03-15 13:50:10,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1537, Invalid=4943, Unknown=0, NotChecked=0, Total=6480 [2022-03-15 13:50:10,712 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, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:10,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1992 Valid, 6535 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 13:50:10,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66364 states. [2022-03-15 13:50:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66364 to 40520. [2022-03-15 13:50:11,669 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) [2022-03-15 13:50:11,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113247 transitions. [2022-03-15 13:50:11,907 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113247 transitions. Word has length 231 [2022-03-15 13:50:11,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:11,907 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113247 transitions. [2022-03-15 13:50:11,908 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) [2022-03-15 13:50:11,908 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113247 transitions. [2022-03-15 13:50:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:11,956 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:11,956 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] [2022-03-15 13:50:11,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-15 13:50:11,956 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:11,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:11,960 INFO L85 PathProgramCache]: Analyzing trace with hash -479848388, now seen corresponding path program 56 times [2022-03-15 13:50:11,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:11,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852535094] [2022-03-15 13:50:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:11,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:12,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:12,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852535094] [2022-03-15 13:50:12,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852535094] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:12,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:12,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:12,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772121898] [2022-03-15 13:50:12,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:12,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:12,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:12,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:12,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:12,381 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) [2022-03-15 13:50:14,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:14,318 INFO L93 Difference]: Finished difference Result 64439 states and 178791 transitions. [2022-03-15 13:50:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 13:50:14,318 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 [2022-03-15 13:50:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:14,482 INFO L225 Difference]: With dead ends: 64439 [2022-03-15 13:50:14,482 INFO L226 Difference]: Without dead ends: 64439 [2022-03-15 13:50:14,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1077, Invalid=3345, Unknown=0, NotChecked=0, Total=4422 [2022-03-15 13:50:14,483 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 [2022-03-15 13:50:14,483 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] [2022-03-15 13:50:14,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64439 states. [2022-03-15 13:50:15,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64439 to 40524. [2022-03-15 13:50:15,470 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) [2022-03-15 13:50:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113262 transitions. [2022-03-15 13:50:15,572 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113262 transitions. Word has length 231 [2022-03-15 13:50:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:15,572 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113262 transitions. [2022-03-15 13:50:15,572 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) [2022-03-15 13:50:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113262 transitions. [2022-03-15 13:50:15,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:15,618 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:15,618 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] [2022-03-15 13:50:15,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-15 13:50:15,618 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:15,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:15,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1338003582, now seen corresponding path program 57 times [2022-03-15 13:50:15,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:15,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160423751] [2022-03-15 13:50:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:15,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:16,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:16,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160423751] [2022-03-15 13:50:16,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160423751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:16,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:16,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:16,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994476856] [2022-03-15 13:50:16,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:16,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:16,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:16,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:16,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:16,052 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) [2022-03-15 13:50:18,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:18,122 INFO L93 Difference]: Finished difference Result 63791 states and 176973 transitions. [2022-03-15 13:50:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:50:18,122 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 [2022-03-15 13:50:18,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:18,274 INFO L225 Difference]: With dead ends: 63791 [2022-03-15 13:50:18,274 INFO L226 Difference]: Without dead ends: 63791 [2022-03-15 13:50:18,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=965, Invalid=2941, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:50:18,275 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1293 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-03-15 13:50:18,275 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] [2022-03-15 13:50:18,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63791 states. [2022-03-15 13:50:19,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63791 to 40528. [2022-03-15 13:50:19,167 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) [2022-03-15 13:50:19,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113281 transitions. [2022-03-15 13:50:19,441 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113281 transitions. Word has length 231 [2022-03-15 13:50:19,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:19,441 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113281 transitions. [2022-03-15 13:50:19,441 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) [2022-03-15 13:50:19,442 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113281 transitions. [2022-03-15 13:50:19,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:19,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:19,496 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] [2022-03-15 13:50:19,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-15 13:50:19,496 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:19,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash 482300472, now seen corresponding path program 58 times [2022-03-15 13:50:19,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:19,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849349171] [2022-03-15 13:50:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:19,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:19,903 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:19,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:19,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849349171] [2022-03-15 13:50:19,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849349171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:19,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:19,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:19,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550536998] [2022-03-15 13:50:19,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:19,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:19,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:19,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:19,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:19,905 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) [2022-03-15 13:50:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:21,757 INFO L93 Difference]: Finished difference Result 63114 states and 175034 transitions. [2022-03-15 13:50:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:50:21,757 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 [2022-03-15 13:50:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:21,924 INFO L225 Difference]: With dead ends: 63114 [2022-03-15 13:50:21,924 INFO L226 Difference]: Without dead ends: 63114 [2022-03-15 13:50:21,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=975, Invalid=2931, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:50:21,925 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 [2022-03-15 13:50:21,925 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] [2022-03-15 13:50:22,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63114 states. [2022-03-15 13:50:22,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63114 to 40472. [2022-03-15 13:50:22,896 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) [2022-03-15 13:50:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113107 transitions. [2022-03-15 13:50:22,992 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113107 transitions. Word has length 231 [2022-03-15 13:50:22,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:22,993 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113107 transitions. [2022-03-15 13:50:22,993 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) [2022-03-15 13:50:22,993 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113107 transitions. [2022-03-15 13:50:23,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:23,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:23,038 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] [2022-03-15 13:50:23,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-15 13:50:23,038 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:23,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:23,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2101650344, now seen corresponding path program 59 times [2022-03-15 13:50:23,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:23,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457539316] [2022-03-15 13:50:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:23,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:23,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:23,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457539316] [2022-03-15 13:50:23,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457539316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:23,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:23,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:23,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737118132] [2022-03-15 13:50:23,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:23,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:23,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:23,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:23,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:23,486 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) [2022-03-15 13:50:25,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:25,426 INFO L93 Difference]: Finished difference Result 64859 states and 179946 transitions. [2022-03-15 13:50:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-15 13:50:25,427 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 [2022-03-15 13:50:25,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:25,697 INFO L225 Difference]: With dead ends: 64859 [2022-03-15 13:50:25,697 INFO L226 Difference]: Without dead ends: 64859 [2022-03-15 13:50:25,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1015, Invalid=3145, Unknown=0, NotChecked=0, Total=4160 [2022-03-15 13:50:25,697 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 [2022-03-15 13:50:25,698 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] [2022-03-15 13:50:25,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64859 states. [2022-03-15 13:50:26,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64859 to 40480. [2022-03-15 13:50:26,536 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) [2022-03-15 13:50:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-15 13:50:26,630 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-15 13:50:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:26,630 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-15 13:50:26,630 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) [2022-03-15 13:50:26,630 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-15 13:50:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:26,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:26,672 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] [2022-03-15 13:50:26,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-15 13:50:26,672 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:26,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1243495150, now seen corresponding path program 60 times [2022-03-15 13:50:26,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:26,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785610109] [2022-03-15 13:50:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:26,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:27,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:27,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785610109] [2022-03-15 13:50:27,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785610109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:27,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:27,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:27,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575780522] [2022-03-15 13:50:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:27,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:27,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:27,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:27,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:27,254 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) [2022-03-15 13:50:29,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:29,084 INFO L93 Difference]: Finished difference Result 66047 states and 183393 transitions. [2022-03-15 13:50:29,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:50:29,085 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 [2022-03-15 13:50:29,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:29,248 INFO L225 Difference]: With dead ends: 66047 [2022-03-15 13:50:29,248 INFO L226 Difference]: Without dead ends: 66047 [2022-03-15 13:50:29,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=963, Invalid=2943, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:50:29,249 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 1480 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:29,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 4698 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:50:29,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66047 states. [2022-03-15 13:50:30,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66047 to 40484. [2022-03-15 13:50:30,152 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) [2022-03-15 13:50:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-15 13:50:30,252 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-15 13:50:30,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:30,253 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-15 13:50:30,253 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) [2022-03-15 13:50:30,253 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-15 13:50:30,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:30,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:30,458 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] [2022-03-15 13:50:30,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-15 13:50:30,458 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:30,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:30,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1231168092, now seen corresponding path program 61 times [2022-03-15 13:50:30,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:30,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18428638] [2022-03-15 13:50:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:30,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:30,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:30,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18428638] [2022-03-15 13:50:30,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18428638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:30,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:30,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:30,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026077668] [2022-03-15 13:50:30,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:30,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:30,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:30,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:30,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:30,895 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) [2022-03-15 13:50:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:32,785 INFO L93 Difference]: Finished difference Result 65370 states and 181454 transitions. [2022-03-15 13:50:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:50:32,786 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 [2022-03-15 13:50:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:32,943 INFO L225 Difference]: With dead ends: 65370 [2022-03-15 13:50:32,943 INFO L226 Difference]: Without dead ends: 65370 [2022-03-15 13:50:32,943 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 [2022-03-15 13:50:32,943 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1557 mSDsluCounter, 5079 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-03-15 13:50:32,943 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] [2022-03-15 13:50:33,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65370 states. [2022-03-15 13:50:33,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65370 to 40476. [2022-03-15 13:50:33,969 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) [2022-03-15 13:50:34,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40476 states to 40476 states and 113118 transitions. [2022-03-15 13:50:34,069 INFO L78 Accepts]: Start accepts. Automaton has 40476 states and 113118 transitions. Word has length 231 [2022-03-15 13:50:34,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:34,069 INFO L470 AbstractCegarLoop]: Abstraction has 40476 states and 113118 transitions. [2022-03-15 13:50:34,069 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) [2022-03-15 13:50:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 40476 states and 113118 transitions. [2022-03-15 13:50:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:34,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:34,113 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] [2022-03-15 13:50:34,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-15 13:50:34,113 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:34,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash 458532414, now seen corresponding path program 62 times [2022-03-15 13:50:34,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:34,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620401712] [2022-03-15 13:50:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:34,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:34,543 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:34,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:34,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620401712] [2022-03-15 13:50:34,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620401712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:34,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:34,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:34,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056520191] [2022-03-15 13:50:34,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:34,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:34,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:34,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:34,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:34,544 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) [2022-03-15 13:50:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:36,325 INFO L93 Difference]: Finished difference Result 64159 states and 177977 transitions. [2022-03-15 13:50:36,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 13:50:36,325 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 [2022-03-15 13:50:36,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:36,481 INFO L225 Difference]: With dead ends: 64159 [2022-03-15 13:50:36,482 INFO L226 Difference]: Without dead ends: 64159 [2022-03-15 13:50:36,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=903, Invalid=2757, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 13:50:36,482 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1585 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:36,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 5331 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:50:36,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64159 states. [2022-03-15 13:50:37,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64159 to 40484. [2022-03-15 13:50:37,507 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) [2022-03-15 13:50:37,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-03-15 13:50:37,606 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-03-15 13:50:37,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:37,607 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-03-15 13:50:37,607 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) [2022-03-15 13:50:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-03-15 13:50:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:37,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:37,650 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] [2022-03-15 13:50:37,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-15 13:50:37,650 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:37,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:37,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2016130828, now seen corresponding path program 63 times [2022-03-15 13:50:37,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:37,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620367522] [2022-03-15 13:50:37,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:37,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:38,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:38,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620367522] [2022-03-15 13:50:38,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620367522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:38,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:38,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:38,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983666233] [2022-03-15 13:50:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:38,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:38,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:38,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:38,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:38,082 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) [2022-03-15 13:50:39,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:39,917 INFO L93 Difference]: Finished difference Result 64506 states and 178910 transitions. [2022-03-15 13:50:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-15 13:50:39,918 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 [2022-03-15 13:50:39,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:40,225 INFO L225 Difference]: With dead ends: 64506 [2022-03-15 13:50:40,225 INFO L226 Difference]: Without dead ends: 64506 [2022-03-15 13:50:40,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=908, Invalid=2752, Unknown=0, NotChecked=0, Total=3660 [2022-03-15 13:50:40,225 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1573 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:40,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1573 Valid, 5250 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:50:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64506 states. [2022-03-15 13:50:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64506 to 40480. [2022-03-15 13:50:41,076 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) [2022-03-15 13:50:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-03-15 13:50:41,179 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-03-15 13:50:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:41,179 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-03-15 13:50:41,179 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) [2022-03-15 13:50:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-03-15 13:50:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:41,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:41,225 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] [2022-03-15 13:50:41,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-15 13:50:41,225 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:41,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1770018840, now seen corresponding path program 64 times [2022-03-15 13:50:41,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:41,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567235733] [2022-03-15 13:50:41,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:41,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:41,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:41,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567235733] [2022-03-15 13:50:41,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567235733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:41,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:41,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:41,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231392361] [2022-03-15 13:50:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:41,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:41,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:41,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:41,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:41,809 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) [2022-03-15 13:50:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:43,668 INFO L93 Difference]: Finished difference Result 63066 states and 174716 transitions. [2022-03-15 13:50:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 13:50:43,668 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 [2022-03-15 13:50:43,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:43,829 INFO L225 Difference]: With dead ends: 63066 [2022-03-15 13:50:43,829 INFO L226 Difference]: Without dead ends: 63066 [2022-03-15 13:50:43,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=966, Invalid=2940, Unknown=0, NotChecked=0, Total=3906 [2022-03-15 13:50:43,830 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1684 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:43,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1684 Valid, 5256 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:50:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63066 states. [2022-03-15 13:50:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63066 to 39848. [2022-03-15 13:50:44,709 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) [2022-03-15 13:50:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39848 states to 39848 states and 111291 transitions. [2022-03-15 13:50:44,799 INFO L78 Accepts]: Start accepts. Automaton has 39848 states and 111291 transitions. Word has length 231 [2022-03-15 13:50:44,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:44,799 INFO L470 AbstractCegarLoop]: Abstraction has 39848 states and 111291 transitions. [2022-03-15 13:50:44,799 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) [2022-03-15 13:50:44,799 INFO L276 IsEmpty]: Start isEmpty. Operand 39848 states and 111291 transitions. [2022-03-15 13:50:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:44,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:44,843 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] [2022-03-15 13:50:44,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-15 13:50:44,843 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:44,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076682, now seen corresponding path program 65 times [2022-03-15 13:50:44,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:44,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512208778] [2022-03-15 13:50:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:44,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:45,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:45,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512208778] [2022-03-15 13:50:45,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512208778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:45,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:45,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:45,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77204902] [2022-03-15 13:50:45,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:45,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:45,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:45,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:45,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:45,349 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) [2022-03-15 13:50:46,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:46,376 INFO L93 Difference]: Finished difference Result 48851 states and 135511 transitions. [2022-03-15 13:50:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-15 13:50:46,377 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 [2022-03-15 13:50:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:46,479 INFO L225 Difference]: With dead ends: 48851 [2022-03-15 13:50:46,479 INFO L226 Difference]: Without dead ends: 48179 [2022-03-15 13:50:46,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=492, Invalid=1670, Unknown=0, NotChecked=0, Total=2162 [2022-03-15 13:50:46,480 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, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:46,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 4680 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 13:50:46,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48179 states. [2022-03-15 13:50:47,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48179 to 39848. [2022-03-15 13:50:47,364 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) [2022-03-15 13:50:47,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39848 states to 39848 states and 111287 transitions. [2022-03-15 13:50:47,463 INFO L78 Accepts]: Start accepts. Automaton has 39848 states and 111287 transitions. Word has length 231 [2022-03-15 13:50:47,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:47,463 INFO L470 AbstractCegarLoop]: Abstraction has 39848 states and 111287 transitions. [2022-03-15 13:50:47,463 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) [2022-03-15 13:50:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 39848 states and 111287 transitions. [2022-03-15 13:50:47,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:47,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:47,507 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] [2022-03-15 13:50:47,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-15 13:50:47,507 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:47,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:47,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1726005878, now seen corresponding path program 66 times [2022-03-15 13:50:47,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:47,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634724920] [2022-03-15 13:50:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:47,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:47,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:47,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634724920] [2022-03-15 13:50:47,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634724920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:47,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:47,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:47,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688723049] [2022-03-15 13:50:47,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:47,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:47,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:47,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:47,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:47,833 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) [2022-03-15 13:50:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:49,308 INFO L93 Difference]: Finished difference Result 52464 states and 145474 transitions. [2022-03-15 13:50:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 13:50:49,309 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 [2022-03-15 13:50:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:49,435 INFO L225 Difference]: With dead ends: 52464 [2022-03-15 13:50:49,435 INFO L226 Difference]: Without dead ends: 51848 [2022-03-15 13:50:49,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2022-03-15 13:50:49,435 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 [2022-03-15 13:50:49,435 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] [2022-03-15 13:50:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51848 states. [2022-03-15 13:50:50,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51848 to 40008. [2022-03-15 13:50:50,264 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) [2022-03-15 13:50:50,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40008 states to 40008 states and 111735 transitions. [2022-03-15 13:50:50,492 INFO L78 Accepts]: Start accepts. Automaton has 40008 states and 111735 transitions. Word has length 231 [2022-03-15 13:50:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:50,492 INFO L470 AbstractCegarLoop]: Abstraction has 40008 states and 111735 transitions. [2022-03-15 13:50:50,492 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) [2022-03-15 13:50:50,492 INFO L276 IsEmpty]: Start isEmpty. Operand 40008 states and 111735 transitions. [2022-03-15 13:50:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:50,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:50,533 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] [2022-03-15 13:50:50,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-15 13:50:50,533 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:50,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:50,534 INFO L85 PathProgramCache]: Analyzing trace with hash 185798212, now seen corresponding path program 67 times [2022-03-15 13:50:50,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:50,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494536684] [2022-03-15 13:50:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:50,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:50,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:50,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494536684] [2022-03-15 13:50:50,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494536684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:50,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:50,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:50,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942840863] [2022-03-15 13:50:50,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:50,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:50,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:50,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:50,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:50,865 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) [2022-03-15 13:50:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:52,298 INFO L93 Difference]: Finished difference Result 51650 states and 143418 transitions. [2022-03-15 13:50:52,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 13:50:52,298 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 [2022-03-15 13:50:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:52,425 INFO L225 Difference]: With dead ends: 51650 [2022-03-15 13:50:52,425 INFO L226 Difference]: Without dead ends: 51650 [2022-03-15 13:50:52,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=734, Invalid=2236, Unknown=0, NotChecked=0, Total=2970 [2022-03-15 13:50:52,425 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 [2022-03-15 13:50:52,425 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] [2022-03-15 13:50:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51650 states. [2022-03-15 13:50:53,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51650 to 40012. [2022-03-15 13:50:53,210 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) [2022-03-15 13:50:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40012 states to 40012 states and 111750 transitions. [2022-03-15 13:50:53,304 INFO L78 Accepts]: Start accepts. Automaton has 40012 states and 111750 transitions. Word has length 231 [2022-03-15 13:50:53,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:53,304 INFO L470 AbstractCegarLoop]: Abstraction has 40012 states and 111750 transitions. [2022-03-15 13:50:53,304 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) [2022-03-15 13:50:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 40012 states and 111750 transitions. [2022-03-15 13:50:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:53,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:53,349 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:50:53,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-15 13:50:53,349 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:53,349 INFO L85 PathProgramCache]: Analyzing trace with hash -672356982, now seen corresponding path program 68 times [2022-03-15 13:50:53,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:53,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994952589] [2022-03-15 13:50:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:53,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:53,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:53,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994952589] [2022-03-15 13:50:53,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994952589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:53,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:53,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:53,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894351225] [2022-03-15 13:50:53,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:53,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:53,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:53,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:53,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:53,848 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) [2022-03-15 13:50:55,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:55,109 INFO L93 Difference]: Finished difference Result 51146 states and 142012 transitions. [2022-03-15 13:50:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-15 13:50:55,109 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 [2022-03-15 13:50:55,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:55,231 INFO L225 Difference]: With dead ends: 51146 [2022-03-15 13:50:55,231 INFO L226 Difference]: Without dead ends: 51146 [2022-03-15 13:50:55,232 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 [2022-03-15 13:50:55,232 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 [2022-03-15 13:50:55,232 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] [2022-03-15 13:50:55,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51146 states. [2022-03-15 13:50:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51146 to 40016. [2022-03-15 13:50:56,175 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) [2022-03-15 13:50:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40016 states to 40016 states and 111769 transitions. [2022-03-15 13:50:56,268 INFO L78 Accepts]: Start accepts. Automaton has 40016 states and 111769 transitions. Word has length 231 [2022-03-15 13:50:56,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:56,268 INFO L470 AbstractCegarLoop]: Abstraction has 40016 states and 111769 transitions. [2022-03-15 13:50:56,268 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) [2022-03-15 13:50:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 40016 states and 111769 transitions. [2022-03-15 13:50:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:56,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:56,311 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] [2022-03-15 13:50:56,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-15 13:50:56,312 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:56,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:56,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1147947072, now seen corresponding path program 69 times [2022-03-15 13:50:56,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:56,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008016940] [2022-03-15 13:50:56,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:56,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:56,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:56,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008016940] [2022-03-15 13:50:56,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008016940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:56,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:56,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:56,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435338236] [2022-03-15 13:50:56,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:56,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:56,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:56,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:56,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:56,638 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) [2022-03-15 13:50:58,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:50:58,022 INFO L93 Difference]: Finished difference Result 50089 states and 139150 transitions. [2022-03-15 13:50:58,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 13:50:58,022 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 [2022-03-15 13:50:58,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:50:58,139 INFO L225 Difference]: With dead ends: 50089 [2022-03-15 13:50:58,139 INFO L226 Difference]: Without dead ends: 50089 [2022-03-15 13:50:58,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=685, Invalid=2071, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 13:50:58,139 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1396 mSDsluCounter, 4476 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 13:50:58,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 4816 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 13:50:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50089 states. [2022-03-15 13:50:58,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50089 to 40004. [2022-03-15 13:50:58,894 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) [2022-03-15 13:50:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40004 states to 40004 states and 111720 transitions. [2022-03-15 13:50:59,139 INFO L78 Accepts]: Start accepts. Automaton has 40004 states and 111720 transitions. Word has length 231 [2022-03-15 13:50:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:50:59,139 INFO L470 AbstractCegarLoop]: Abstraction has 40004 states and 111720 transitions. [2022-03-15 13:50:59,139 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) [2022-03-15 13:50:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 40004 states and 111720 transitions. [2022-03-15 13:50:59,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-15 13:50:59,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:50:59,181 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] [2022-03-15 13:50:59,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-15 13:50:59,181 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:50:59,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:50:59,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1222850758, now seen corresponding path program 70 times [2022-03-15 13:50:59,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:50:59,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280223006] [2022-03-15 13:50:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:50:59,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:50:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:50:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-15 13:50:59,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:50:59,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280223006] [2022-03-15 13:50:59,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280223006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:50:59,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:50:59,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-15 13:50:59,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547527481] [2022-03-15 13:50:59,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:50:59,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-15 13:50:59,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:50:59,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-15 13:50:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:50:59,535 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)