/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-820ea7a [2022-02-18 14:08:59,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 14:08:59,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 14:08:59,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 14:08:59,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 14:08:59,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 14:08:59,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 14:08:59,305 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 [2022-02-18 14:08:59,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 14:08:59,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 14:08:59,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 14:08:59,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 14:08:59,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 14:08:59,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 14:08:59,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 14:08:59,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 14:08:59,339 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 14:08:59,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 14:08:59,340 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 14:08:59,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 14:08:59,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 14:08:59,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 14:08:59,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 14:08:59,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 14:08:59,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 14:08:59,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:08:59,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 14:08:59,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 14:08:59,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 14:08:59,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 14:08:59,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 14:08:59,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 14:08:59,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 14:08:59,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 14:08:59,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 14:08:59,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 14:08:59,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 14:08:59,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 14:08:59,535 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 14:08:59,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-02-18 14:08:59,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7011ec1/5b3d5d81bf14417382a444dab1fbc7bd/FLAG7f2c24664 [2022-02-18 14:08:59,919 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 14:08:59,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-02-18 14:08:59,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7011ec1/5b3d5d81bf14417382a444dab1fbc7bd/FLAG7f2c24664 [2022-02-18 14:08:59,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7011ec1/5b3d5d81bf14417382a444dab1fbc7bd [2022-02-18 14:08:59,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 14:08:59,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 14:08:59,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 14:08:59,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 14:08:59,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 14:08:59,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:08:59" (1/1) ... [2022-02-18 14:08:59,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29de706c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:08:59, skipping insertion in model container [2022-02-18 14:08:59,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:08:59" (1/1) ... [2022-02-18 14:08:59,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 14:08:59,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 14:09:00,184 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] [2022-02-18 14:09:00,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:09:00,194 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 14:09:00,210 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] [2022-02-18 14:09:00,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:09:00,224 INFO L208 MainTranslator]: Completed translation [2022-02-18 14:09:00,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00 WrapperNode [2022-02-18 14:09:00,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 14:09:00,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 14:09:00,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 14:09:00,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 14:09:00,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,257 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2022-02-18 14:09:00,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 14:09:00,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 14:09:00,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 14:09:00,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 14:09:00,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 14:09:00,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 14:09:00,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 14:09:00,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 14:09:00,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (1/1) ... [2022-02-18 14:09:00,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:09:00,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:09:00,318 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) [2022-02-18 14:09:00,321 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 [2022-02-18 14:09:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 14:09:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 14:09:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 14:09:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 14:09:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 14:09:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 14:09:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 14:09:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 14:09:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-18 14:09:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 14:09:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 14:09:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 14:09:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 14:09:00,359 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 14:09:00,425 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 14:09:00,425 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 14:09:00,712 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 14:09:00,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 14:09:00,721 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-18 14:09:00,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:09:00 BoogieIcfgContainer [2022-02-18 14:09:00,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 14:09:00,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 14:09:00,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 14:09:00,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 14:09:00,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 02:08:59" (1/3) ... [2022-02-18 14:09:00,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd27bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:09:00, skipping insertion in model container [2022-02-18 14:09:00,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:09:00" (2/3) ... [2022-02-18 14:09:00,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd27bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:09:00, skipping insertion in model container [2022-02-18 14:09:00,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:09:00" (3/3) ... [2022-02-18 14:09:00,733 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-02-18 14:09:00,737 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 14:09:00,738 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 14:09:00,738 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 14:09:00,738 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 14:09:00,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,785 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,785 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,785 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,785 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,793 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,799 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,799 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,799 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,799 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,799 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,802 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,805 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,806 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,807 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,808 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,809 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,816 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,816 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,816 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,816 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,816 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,817 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,818 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,821 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,824 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,825 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,826 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,828 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,828 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,828 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,828 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,829 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,830 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:09:00,833 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-18 14:09:00,880 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 14:09:00,890 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 [2022-02-18 14:09:00,890 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-18 14:09:00,905 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 208 places, 222 transitions, 460 flow [2022-02-18 14:09:01,114 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) [2022-02-18 14:09:01,131 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) [2022-02-18 14:09:01,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-18 14:09:01,184 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:01,185 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] [2022-02-18 14:09:01,187 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:01,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:01,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1784504573, now seen corresponding path program 1 times [2022-02-18 14:09:01,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:01,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095393037] [2022-02-18 14:09:01,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:01,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:09:01,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:01,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095393037] [2022-02-18 14:09:01,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095393037] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:01,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:01,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 14:09:01,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442662063] [2022-02-18 14:09:01,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:01,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 14:09:01,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 14:09:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:09:01,563 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) [2022-02-18 14:09:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:01,658 INFO L93 Difference]: Finished difference Result 5325 states and 15084 transitions. [2022-02-18 14:09:01,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 14:09:01,660 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 [2022-02-18 14:09:01,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:01,713 INFO L225 Difference]: With dead ends: 5325 [2022-02-18 14:09:01,713 INFO L226 Difference]: Without dead ends: 5035 [2022-02-18 14:09:01,716 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 [2022-02-18 14:09:01,722 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 [2022-02-18 14:09:01,722 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] [2022-02-18 14:09:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2022-02-18 14:09:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5035. [2022-02-18 14:09:01,954 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) [2022-02-18 14:09:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 14278 transitions. [2022-02-18 14:09:01,980 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 14278 transitions. Word has length 127 [2022-02-18 14:09:01,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:01,981 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 14278 transitions. [2022-02-18 14:09:01,982 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) [2022-02-18 14:09:01,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 14278 transitions. [2022-02-18 14:09:01,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-18 14:09:01,998 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:01,998 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] [2022-02-18 14:09:01,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 14:09:01,999 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:02,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:02,001 INFO L85 PathProgramCache]: Analyzing trace with hash 987407205, now seen corresponding path program 1 times [2022-02-18 14:09:02,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:02,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491761146] [2022-02-18 14:09:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:02,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:09:02,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:02,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491761146] [2022-02-18 14:09:02,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491761146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:02,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:02,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:09:02,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235989073] [2022-02-18 14:09:02,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:02,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:09:02,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:02,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:09:02,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:09:02,198 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) [2022-02-18 14:09:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:02,406 INFO L93 Difference]: Finished difference Result 5047 states and 14290 transitions. [2022-02-18 14:09:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 14:09:02,407 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 [2022-02-18 14:09:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:02,430 INFO L225 Difference]: With dead ends: 5047 [2022-02-18 14:09:02,431 INFO L226 Difference]: Without dead ends: 5047 [2022-02-18 14:09:02,433 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 [2022-02-18 14:09:02,434 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 342 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:02,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 384 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2022-02-18 14:09:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 5037. [2022-02-18 14:09:02,553 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) [2022-02-18 14:09:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 14280 transitions. [2022-02-18 14:09:02,573 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 14280 transitions. Word has length 127 [2022-02-18 14:09:02,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:02,575 INFO L470 AbstractCegarLoop]: Abstraction has 5037 states and 14280 transitions. [2022-02-18 14:09:02,576 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) [2022-02-18 14:09:02,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 14280 transitions. [2022-02-18 14:09:02,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-02-18 14:09:02,593 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:02,593 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] [2022-02-18 14:09:02,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 14:09:02,593 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:02,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1848078548, now seen corresponding path program 1 times [2022-02-18 14:09:02,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:02,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547042247] [2022-02-18 14:09:02,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:02,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:09:02,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:02,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547042247] [2022-02-18 14:09:02,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547042247] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:09:02,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887831939] [2022-02-18 14:09:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:02,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:09:02,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:09:02,772 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) [2022-02-18 14:09:02,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 14:09:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:02,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-18 14:09:02,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:09:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:09:03,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:09:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:09:03,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887831939] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:09:03,432 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:09:03,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-02-18 14:09:03,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876146621] [2022-02-18 14:09:03,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:09:03,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-18 14:09:03,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:03,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-18 14:09:03,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-02-18 14:09:03,435 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) [2022-02-18 14:09:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:03,645 INFO L93 Difference]: Finished difference Result 5065 states and 14308 transitions. [2022-02-18 14:09:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 14:09:03,645 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 [2022-02-18 14:09:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:03,670 INFO L225 Difference]: With dead ends: 5065 [2022-02-18 14:09:03,670 INFO L226 Difference]: Without dead ends: 5065 [2022-02-18 14:09:03,670 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 [2022-02-18 14:09:03,671 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 [2022-02-18 14:09:03,672 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] [2022-02-18 14:09:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2022-02-18 14:09:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 5065. [2022-02-18 14:09:03,776 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) [2022-02-18 14:09:03,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 14308 transitions. [2022-02-18 14:09:03,794 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 14308 transitions. Word has length 141 [2022-02-18 14:09:03,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:03,795 INFO L470 AbstractCegarLoop]: Abstraction has 5065 states and 14308 transitions. [2022-02-18 14:09:03,795 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) [2022-02-18 14:09:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 14308 transitions. [2022-02-18 14:09:03,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-02-18 14:09:03,807 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:03,807 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] [2022-02-18 14:09:03,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-18 14:09:04,023 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 [2022-02-18 14:09:04,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:04,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1234184308, now seen corresponding path program 2 times [2022-02-18 14:09:04,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:04,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128399893] [2022-02-18 14:09:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:04,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-18 14:09:04,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:04,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128399893] [2022-02-18 14:09:04,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128399893] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:09:04,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380381886] [2022-02-18 14:09:04,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:09:04,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:09:04,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:09:04,224 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) [2022-02-18 14:09:04,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 14:09:04,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-18 14:09:04,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:09:04,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 14:09:04,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:09:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-18 14:09:04,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:09:04,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380381886] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:04,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:09:04,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-02-18 14:09:04,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610098274] [2022-02-18 14:09:04,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:04,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:04,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:04,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:04,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-02-18 14:09:04,676 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) [2022-02-18 14:09:04,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:04,882 INFO L93 Difference]: Finished difference Result 8738 states and 24927 transitions. [2022-02-18 14:09:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 14:09:04,883 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 [2022-02-18 14:09:04,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:04,930 INFO L225 Difference]: With dead ends: 8738 [2022-02-18 14:09:04,930 INFO L226 Difference]: Without dead ends: 8738 [2022-02-18 14:09:04,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:04,933 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 340 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-18 14:09:04,934 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] [2022-02-18 14:09:04,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2022-02-18 14:09:05,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 5953. [2022-02-18 14:09:05,109 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) [2022-02-18 14:09:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5953 states to 5953 states and 16828 transitions. [2022-02-18 14:09:05,130 INFO L78 Accepts]: Start accepts. Automaton has 5953 states and 16828 transitions. Word has length 169 [2022-02-18 14:09:05,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:05,131 INFO L470 AbstractCegarLoop]: Abstraction has 5953 states and 16828 transitions. [2022-02-18 14:09:05,131 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) [2022-02-18 14:09:05,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5953 states and 16828 transitions. [2022-02-18 14:09:05,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-02-18 14:09:05,148 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:05,148 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] [2022-02-18 14:09:05,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 14:09:05,363 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 [2022-02-18 14:09:05,364 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1857872626, now seen corresponding path program 3 times [2022-02-18 14:09:05,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:05,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751039127] [2022-02-18 14:09:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-18 14:09:05,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:05,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751039127] [2022-02-18 14:09:05,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751039127] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:09:05,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815168806] [2022-02-18 14:09:05,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:09:05,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:09:05,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:09:05,476 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) [2022-02-18 14:09:05,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 14:09:05,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-02-18 14:09:05,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:09:05,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 14:09:05,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:09:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-18 14:09:06,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:09:06,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815168806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:06,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:09:06,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-02-18 14:09:06,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243161783] [2022-02-18 14:09:06,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:06,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:06,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:06,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:06,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-02-18 14:09:06,013 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) [2022-02-18 14:09:06,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:06,218 INFO L93 Difference]: Finished difference Result 9654 states and 27532 transitions. [2022-02-18 14:09:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:06,219 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 [2022-02-18 14:09:06,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:06,252 INFO L225 Difference]: With dead ends: 9654 [2022-02-18 14:09:06,252 INFO L226 Difference]: Without dead ends: 9654 [2022-02-18 14:09:06,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:09:06,253 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 323 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:06,253 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] [2022-02-18 14:09:06,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9654 states. [2022-02-18 14:09:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9654 to 5985. [2022-02-18 14:09:06,405 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) [2022-02-18 14:09:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 16920 transitions. [2022-02-18 14:09:06,424 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 16920 transitions. Word has length 169 [2022-02-18 14:09:06,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:06,425 INFO L470 AbstractCegarLoop]: Abstraction has 5985 states and 16920 transitions. [2022-02-18 14:09:06,425 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) [2022-02-18 14:09:06,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 16920 transitions. [2022-02-18 14:09:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-02-18 14:09:06,438 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:06,438 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] [2022-02-18 14:09:06,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-18 14:09:06,660 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 [2022-02-18 14:09:06,660 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:06,661 INFO L85 PathProgramCache]: Analyzing trace with hash 453420382, now seen corresponding path program 4 times [2022-02-18 14:09:06,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:06,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206828355] [2022-02-18 14:09:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:06,770 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-18 14:09:06,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:06,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206828355] [2022-02-18 14:09:06,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206828355] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:09:06,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575811798] [2022-02-18 14:09:06,770 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:09:06,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:09:06,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:09:06,772 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) [2022-02-18 14:09:06,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 14:09:06,872 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:09:06,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:09:06,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-18 14:09:06,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:09:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-18 14:09:07,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:09:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-18 14:09:07,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575811798] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:09:07,540 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:09:07,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-02-18 14:09:07,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837297044] [2022-02-18 14:09:07,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:09:07,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-18 14:09:07,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:07,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-18 14:09:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:09:07,542 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) [2022-02-18 14:09:07,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:07,840 INFO L93 Difference]: Finished difference Result 6013 states and 16948 transitions. [2022-02-18 14:09:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:09:07,841 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 [2022-02-18 14:09:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:07,856 INFO L225 Difference]: With dead ends: 6013 [2022-02-18 14:09:07,856 INFO L226 Difference]: Without dead ends: 6013 [2022-02-18 14:09:07,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 326 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-02-18 14:09:07,857 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 [2022-02-18 14:09:07,858 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] [2022-02-18 14:09:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-02-18 14:09:07,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 6013. [2022-02-18 14:09:07,953 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) [2022-02-18 14:09:07,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16948 transitions. [2022-02-18 14:09:07,970 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16948 transitions. Word has length 169 [2022-02-18 14:09:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:07,970 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16948 transitions. [2022-02-18 14:09:07,970 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) [2022-02-18 14:09:07,971 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16948 transitions. [2022-02-18 14:09:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:07,986 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:07,986 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:08,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 14:09:08,211 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 [2022-02-18 14:09:08,212 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:08,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:08,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1083808322, now seen corresponding path program 5 times [2022-02-18 14:09:08,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:08,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099645191] [2022-02-18 14:09:08,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:08,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:08,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:08,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099645191] [2022-02-18 14:09:08,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099645191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:08,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:08,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:08,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934969074] [2022-02-18 14:09:08,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:08,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:08,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:08,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:08,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:08,316 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) [2022-02-18 14:09:08,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:08,437 INFO L93 Difference]: Finished difference Result 8978 states and 25546 transitions. [2022-02-18 14:09:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:08,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-18 14:09:08,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:08,463 INFO L225 Difference]: With dead ends: 8978 [2022-02-18 14:09:08,464 INFO L226 Difference]: Without dead ends: 8966 [2022-02-18 14:09:08,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:09:08,464 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 [2022-02-18 14:09:08,465 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] [2022-02-18 14:09:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8966 states. [2022-02-18 14:09:08,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8966 to 6013. [2022-02-18 14:09:08,645 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) [2022-02-18 14:09:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16944 transitions. [2022-02-18 14:09:08,660 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16944 transitions. Word has length 197 [2022-02-18 14:09:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:08,660 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16944 transitions. [2022-02-18 14:09:08,660 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) [2022-02-18 14:09:08,661 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16944 transitions. [2022-02-18 14:09:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:08,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:08,672 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] [2022-02-18 14:09:08,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 14:09:08,672 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1457173220, now seen corresponding path program 6 times [2022-02-18 14:09:08,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:08,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718214659] [2022-02-18 14:09:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:08,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:08,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:08,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718214659] [2022-02-18 14:09:08,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718214659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:08,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:08,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:08,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176973470] [2022-02-18 14:09:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:08,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:08,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:08,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:08,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:08,838 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) [2022-02-18 14:09:08,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:08,967 INFO L93 Difference]: Finished difference Result 10058 states and 28610 transitions. [2022-02-18 14:09:08,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:08,967 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 [2022-02-18 14:09:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:08,994 INFO L225 Difference]: With dead ends: 10058 [2022-02-18 14:09:08,995 INFO L226 Difference]: Without dead ends: 10058 [2022-02-18 14:09:08,995 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 [2022-02-18 14:09:08,995 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:08,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1110 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:09,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2022-02-18 14:09:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 6109. [2022-02-18 14:09:09,116 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) [2022-02-18 14:09:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 17220 transitions. [2022-02-18 14:09:09,132 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 17220 transitions. Word has length 197 [2022-02-18 14:09:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:09,133 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 17220 transitions. [2022-02-18 14:09:09,133 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) [2022-02-18 14:09:09,133 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 17220 transitions. [2022-02-18 14:09:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:09,144 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:09,144 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:09,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-18 14:09:09,144 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:09,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:09,145 INFO L85 PathProgramCache]: Analyzing trace with hash 52720976, now seen corresponding path program 7 times [2022-02-18 14:09:09,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:09,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867823624] [2022-02-18 14:09:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:09,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:09,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:09,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867823624] [2022-02-18 14:09:09,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867823624] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:09,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:09,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:09,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762140724] [2022-02-18 14:09:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:09,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:09,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:09,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:09,247 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) [2022-02-18 14:09:09,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:09,366 INFO L93 Difference]: Finished difference Result 10142 states and 28841 transitions. [2022-02-18 14:09:09,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:09,431 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 [2022-02-18 14:09:09,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:09,458 INFO L225 Difference]: With dead ends: 10142 [2022-02-18 14:09:09,458 INFO L226 Difference]: Without dead ends: 10130 [2022-02-18 14:09:09,459 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 [2022-02-18 14:09:09,461 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 285 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:09,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1062 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:09:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10130 states. [2022-02-18 14:09:09,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10130 to 6077. [2022-02-18 14:09:09,610 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) [2022-02-18 14:09:09,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17128 transitions. [2022-02-18 14:09:09,629 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17128 transitions. Word has length 197 [2022-02-18 14:09:09,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:09,629 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17128 transitions. [2022-02-18 14:09:09,629 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) [2022-02-18 14:09:09,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17128 transitions. [2022-02-18 14:09:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:09,642 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:09,642 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:09,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 14:09:09,643 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:09,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1650902898, now seen corresponding path program 8 times [2022-02-18 14:09:09,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:09,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71102962] [2022-02-18 14:09:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:09,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:09,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:09,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71102962] [2022-02-18 14:09:09,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71102962] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:09,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:09,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:09,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874080378] [2022-02-18 14:09:09,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:09,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:09,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:09,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:09,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:09,760 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) [2022-02-18 14:09:09,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:09,877 INFO L93 Difference]: Finished difference Result 9138 states and 25986 transitions. [2022-02-18 14:09:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:09,877 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 [2022-02-18 14:09:09,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:09,903 INFO L225 Difference]: With dead ends: 9138 [2022-02-18 14:09:09,904 INFO L226 Difference]: Without dead ends: 9102 [2022-02-18 14:09:09,904 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 [2022-02-18 14:09:09,905 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 178 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:09,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:09:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-02-18 14:09:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 6077. [2022-02-18 14:09:10,037 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) [2022-02-18 14:09:10,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17120 transitions. [2022-02-18 14:09:10,054 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17120 transitions. Word has length 197 [2022-02-18 14:09:10,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:10,055 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17120 transitions. [2022-02-18 14:09:10,055 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) [2022-02-18 14:09:10,055 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17120 transitions. [2022-02-18 14:09:10,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:10,067 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:10,068 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:10,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-18 14:09:10,068 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:10,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:10,068 INFO L85 PathProgramCache]: Analyzing trace with hash -894162494, now seen corresponding path program 9 times [2022-02-18 14:09:10,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:10,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366089563] [2022-02-18 14:09:10,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:10,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:10,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:10,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366089563] [2022-02-18 14:09:10,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366089563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:10,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:10,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:10,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891696810] [2022-02-18 14:09:10,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:10,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:10,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:10,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:10,173 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) [2022-02-18 14:09:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:10,306 INFO L93 Difference]: Finished difference Result 9645 states and 27438 transitions. [2022-02-18 14:09:10,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:10,307 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 [2022-02-18 14:09:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:10,333 INFO L225 Difference]: With dead ends: 9645 [2022-02-18 14:09:10,333 INFO L226 Difference]: Without dead ends: 9645 [2022-02-18 14:09:10,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:09:10,334 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 [2022-02-18 14:09:10,334 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] [2022-02-18 14:09:10,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2022-02-18 14:09:10,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 5328. [2022-02-18 14:09:10,486 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) [2022-02-18 14:09:10,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 15020 transitions. [2022-02-18 14:09:10,500 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 15020 transitions. Word has length 197 [2022-02-18 14:09:10,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:10,500 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 15020 transitions. [2022-02-18 14:09:10,501 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) [2022-02-18 14:09:10,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 15020 transitions. [2022-02-18 14:09:10,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:10,511 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:10,511 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:10,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-18 14:09:10,511 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:10,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:10,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1996352558, now seen corresponding path program 10 times [2022-02-18 14:09:10,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:10,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506425621] [2022-02-18 14:09:10,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:10,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:10,630 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:10,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:10,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506425621] [2022-02-18 14:09:10,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506425621] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:10,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:10,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:10,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351075297] [2022-02-18 14:09:10,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:10,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:10,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:10,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:10,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:10,633 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) [2022-02-18 14:09:10,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:10,769 INFO L93 Difference]: Finished difference Result 9729 states and 27669 transitions. [2022-02-18 14:09:10,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:10,770 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 [2022-02-18 14:09:10,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:10,792 INFO L225 Difference]: With dead ends: 9729 [2022-02-18 14:09:10,792 INFO L226 Difference]: Without dead ends: 9717 [2022-02-18 14:09:10,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:09:10,794 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 313 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:10,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1026 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:10,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2022-02-18 14:09:10,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 5296. [2022-02-18 14:09:10,912 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) [2022-02-18 14:09:10,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 14928 transitions. [2022-02-18 14:09:10,925 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 14928 transitions. Word has length 197 [2022-02-18 14:09:10,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:10,926 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 14928 transitions. [2022-02-18 14:09:10,926 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) [2022-02-18 14:09:10,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 14928 transitions. [2022-02-18 14:09:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:10,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:10,935 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:10,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-18 14:09:10,936 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:10,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:10,936 INFO L85 PathProgramCache]: Analyzing trace with hash -700432816, now seen corresponding path program 11 times [2022-02-18 14:09:10,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:10,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106214515] [2022-02-18 14:09:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:10,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:11,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:11,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106214515] [2022-02-18 14:09:11,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106214515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:11,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:11,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:11,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271818200] [2022-02-18 14:09:11,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:11,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:11,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:11,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:11,025 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) [2022-02-18 14:09:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:11,152 INFO L93 Difference]: Finished difference Result 9645 states and 27422 transitions. [2022-02-18 14:09:11,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:11,153 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 [2022-02-18 14:09:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:11,173 INFO L225 Difference]: With dead ends: 9645 [2022-02-18 14:09:11,173 INFO L226 Difference]: Without dead ends: 9609 [2022-02-18 14:09:11,173 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 [2022-02-18 14:09:11,174 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 172 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:11,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1208 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:09:11,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2022-02-18 14:09:11,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 5232. [2022-02-18 14:09:11,282 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) [2022-02-18 14:09:11,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 14744 transitions. [2022-02-18 14:09:11,295 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 14744 transitions. Word has length 197 [2022-02-18 14:09:11,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:11,296 INFO L470 AbstractCegarLoop]: Abstraction has 5232 states and 14744 transitions. [2022-02-18 14:09:11,296 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) [2022-02-18 14:09:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 14744 transitions. [2022-02-18 14:09:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:11,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:11,304 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:11,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-18 14:09:11,304 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:11,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:11,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1635372850, now seen corresponding path program 12 times [2022-02-18 14:09:11,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:11,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055690241] [2022-02-18 14:09:11,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:11,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:11,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:11,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055690241] [2022-02-18 14:09:11,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055690241] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:11,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:11,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:11,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147185408] [2022-02-18 14:09:11,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:11,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:11,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:11,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:11,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:11,448 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) [2022-02-18 14:09:11,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:11,561 INFO L93 Difference]: Finished difference Result 10585 states and 29897 transitions. [2022-02-18 14:09:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:11,561 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 [2022-02-18 14:09:11,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:11,582 INFO L225 Difference]: With dead ends: 10585 [2022-02-18 14:09:11,583 INFO L226 Difference]: Without dead ends: 10585 [2022-02-18 14:09:11,583 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 [2022-02-18 14:09:11,583 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:11,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 839 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:11,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-02-18 14:09:11,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 6246. [2022-02-18 14:09:11,718 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) [2022-02-18 14:09:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 17670 transitions. [2022-02-18 14:09:11,733 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 17670 transitions. Word has length 197 [2022-02-18 14:09:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:11,734 INFO L470 AbstractCegarLoop]: Abstraction has 6246 states and 17670 transitions. [2022-02-18 14:09:11,734 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) [2022-02-18 14:09:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 17670 transitions. [2022-02-18 14:09:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:11,743 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:11,743 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:11,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-18 14:09:11,743 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash -550869130, now seen corresponding path program 13 times [2022-02-18 14:09:11,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:11,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783951822] [2022-02-18 14:09:11,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:11,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:11,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:11,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783951822] [2022-02-18 14:09:11,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783951822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:11,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:11,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:11,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663352718] [2022-02-18 14:09:11,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:11,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:11,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:11,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:11,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:11,842 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) [2022-02-18 14:09:11,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:11,955 INFO L93 Difference]: Finished difference Result 11311 states and 32155 transitions. [2022-02-18 14:09:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:11,955 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 [2022-02-18 14:09:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:11,979 INFO L225 Difference]: With dead ends: 11311 [2022-02-18 14:09:11,979 INFO L226 Difference]: Without dead ends: 11311 [2022-02-18 14:09:11,981 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 [2022-02-18 14:09:11,982 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:11,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 792 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-02-18 14:09:12,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 6190. [2022-02-18 14:09:12,118 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) [2022-02-18 14:09:12,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-02-18 14:09:12,133 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-02-18 14:09:12,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:12,136 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-02-18 14:09:12,136 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) [2022-02-18 14:09:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-02-18 14:09:12,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:12,146 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:12,146 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] [2022-02-18 14:09:12,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-18 14:09:12,147 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2031567104, now seen corresponding path program 14 times [2022-02-18 14:09:12,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:12,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311672133] [2022-02-18 14:09:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:12,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:12,237 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:12,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:12,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311672133] [2022-02-18 14:09:12,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311672133] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:12,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:12,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:12,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263023764] [2022-02-18 14:09:12,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:12,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:12,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:12,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:12,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:12,239 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) [2022-02-18 14:09:12,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:12,357 INFO L93 Difference]: Finished difference Result 9994 states and 28468 transitions. [2022-02-18 14:09:12,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:12,358 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 [2022-02-18 14:09:12,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:12,372 INFO L225 Difference]: With dead ends: 9994 [2022-02-18 14:09:12,372 INFO L226 Difference]: Without dead ends: 9994 [2022-02-18 14:09:12,372 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 [2022-02-18 14:09:12,372 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 [2022-02-18 14:09:12,373 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] [2022-02-18 14:09:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9994 states. [2022-02-18 14:09:12,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9994 to 6190. [2022-02-18 14:09:12,481 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) [2022-02-18 14:09:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-02-18 14:09:12,496 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-02-18 14:09:12,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:12,497 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-02-18 14:09:12,497 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) [2022-02-18 14:09:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-02-18 14:09:12,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-18 14:09:12,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:12,506 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:12,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-18 14:09:12,507 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:12,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:12,507 INFO L85 PathProgramCache]: Analyzing trace with hash -697665538, now seen corresponding path program 15 times [2022-02-18 14:09:12,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:12,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918078020] [2022-02-18 14:09:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:12,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:12,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:12,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918078020] [2022-02-18 14:09:12,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918078020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:12,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:12,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:12,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35136383] [2022-02-18 14:09:12,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:12,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:12,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:12,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:12,591 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) [2022-02-18 14:09:12,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:12,696 INFO L93 Difference]: Finished difference Result 10757 states and 30680 transitions. [2022-02-18 14:09:12,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:12,696 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 [2022-02-18 14:09:12,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:12,714 INFO L225 Difference]: With dead ends: 10757 [2022-02-18 14:09:12,714 INFO L226 Difference]: Without dead ends: 10757 [2022-02-18 14:09:12,714 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 [2022-02-18 14:09:12,714 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 [2022-02-18 14:09:12,715 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] [2022-02-18 14:09:12,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-02-18 14:09:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 5378. [2022-02-18 14:09:12,826 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) [2022-02-18 14:09:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15187 transitions. [2022-02-18 14:09:12,837 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15187 transitions. Word has length 197 [2022-02-18 14:09:12,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:12,837 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15187 transitions. [2022-02-18 14:09:12,837 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) [2022-02-18 14:09:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15187 transitions. [2022-02-18 14:09:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-18 14:09:12,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:12,844 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] [2022-02-18 14:09:12,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-18 14:09:12,844 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:12,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:12,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1998923460, now seen corresponding path program 1 times [2022-02-18 14:09:12,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:12,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649226415] [2022-02-18 14:09:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:12,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:12,921 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:12,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:12,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649226415] [2022-02-18 14:09:12,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649226415] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:12,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:12,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:12,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827911625] [2022-02-18 14:09:12,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:12,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:12,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:12,923 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) [2022-02-18 14:09:13,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:13,027 INFO L93 Difference]: Finished difference Result 9593 states and 26922 transitions. [2022-02-18 14:09:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:09:13,027 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 [2022-02-18 14:09:13,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:13,046 INFO L225 Difference]: With dead ends: 9593 [2022-02-18 14:09:13,047 INFO L226 Difference]: Without dead ends: 9470 [2022-02-18 14:09:13,047 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 [2022-02-18 14:09:13,047 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 [2022-02-18 14:09:13,048 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] [2022-02-18 14:09:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2022-02-18 14:09:13,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 5378. [2022-02-18 14:09:13,188 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) [2022-02-18 14:09:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15165 transitions. [2022-02-18 14:09:13,198 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15165 transitions. Word has length 210 [2022-02-18 14:09:13,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:13,199 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15165 transitions. [2022-02-18 14:09:13,199 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) [2022-02-18 14:09:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15165 transitions. [2022-02-18 14:09:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-18 14:09:13,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:13,208 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:13,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-18 14:09:13,208 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:13,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash 856042914, now seen corresponding path program 2 times [2022-02-18 14:09:13,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:13,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621321997] [2022-02-18 14:09:13,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:13,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:13,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:13,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621321997] [2022-02-18 14:09:13,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621321997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:13,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:13,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:13,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619549297] [2022-02-18 14:09:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:13,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:13,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:13,304 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) [2022-02-18 14:09:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:13,446 INFO L93 Difference]: Finished difference Result 11347 states and 31759 transitions. [2022-02-18 14:09:13,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:13,447 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 [2022-02-18 14:09:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:13,471 INFO L225 Difference]: With dead ends: 11347 [2022-02-18 14:09:13,471 INFO L226 Difference]: Without dead ends: 11302 [2022-02-18 14:09:13,471 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 [2022-02-18 14:09:13,472 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:13,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1195 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-02-18 14:09:13,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 5442. [2022-02-18 14:09:13,590 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) [2022-02-18 14:09:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 15341 transitions. [2022-02-18 14:09:13,601 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 15341 transitions. Word has length 210 [2022-02-18 14:09:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:13,601 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 15341 transitions. [2022-02-18 14:09:13,602 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) [2022-02-18 14:09:13,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 15341 transitions. [2022-02-18 14:09:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-18 14:09:13,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:13,611 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:13,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-18 14:09:13,612 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:13,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1193971804, now seen corresponding path program 3 times [2022-02-18 14:09:13,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:13,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930118407] [2022-02-18 14:09:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:13,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:13,704 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:13,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:13,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930118407] [2022-02-18 14:09:13,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930118407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:13,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:13,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:13,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64087677] [2022-02-18 14:09:13,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:13,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:13,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:13,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:13,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:13,706 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) [2022-02-18 14:09:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:13,843 INFO L93 Difference]: Finished difference Result 11071 states and 31168 transitions. [2022-02-18 14:09:13,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:13,843 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 [2022-02-18 14:09:13,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:13,860 INFO L225 Difference]: With dead ends: 11071 [2022-02-18 14:09:13,860 INFO L226 Difference]: Without dead ends: 11056 [2022-02-18 14:09:13,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:09:13,861 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 373 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-18 14:09:13,862 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] [2022-02-18 14:09:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-02-18 14:09:13,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5474. [2022-02-18 14:09:13,978 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) [2022-02-18 14:09:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15429 transitions. [2022-02-18 14:09:13,987 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15429 transitions. Word has length 210 [2022-02-18 14:09:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:13,987 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15429 transitions. [2022-02-18 14:09:13,987 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) [2022-02-18 14:09:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15429 transitions. [2022-02-18 14:09:13,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-18 14:09:13,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:13,995 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:13,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-18 14:09:13,995 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:13,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash -273025212, now seen corresponding path program 1 times [2022-02-18 14:09:13,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:13,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758126631] [2022-02-18 14:09:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:13,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:14,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:14,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758126631] [2022-02-18 14:09:14,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758126631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:14,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:14,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:14,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758357942] [2022-02-18 14:09:14,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:14,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:14,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:14,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:14,064 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) [2022-02-18 14:09:14,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:14,145 INFO L93 Difference]: Finished difference Result 8999 states and 25587 transitions. [2022-02-18 14:09:14,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:14,146 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 [2022-02-18 14:09:14,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:14,159 INFO L225 Difference]: With dead ends: 8999 [2022-02-18 14:09:14,159 INFO L226 Difference]: Without dead ends: 8915 [2022-02-18 14:09:14,159 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 [2022-02-18 14:09:14,160 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:14,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 850 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:09:14,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2022-02-18 14:09:14,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 5474. [2022-02-18 14:09:14,281 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) [2022-02-18 14:09:14,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15413 transitions. [2022-02-18 14:09:14,290 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15413 transitions. Word has length 210 [2022-02-18 14:09:14,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:14,291 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15413 transitions. [2022-02-18 14:09:14,291 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) [2022-02-18 14:09:14,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15413 transitions. [2022-02-18 14:09:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-18 14:09:14,297 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:14,297 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:14,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-18 14:09:14,297 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:14,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1505777182, now seen corresponding path program 4 times [2022-02-18 14:09:14,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:14,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801245787] [2022-02-18 14:09:14,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:14,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:14,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:14,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801245787] [2022-02-18 14:09:14,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801245787] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:14,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:14,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:14,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485458511] [2022-02-18 14:09:14,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:14,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:14,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:14,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:14,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:14,387 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) [2022-02-18 14:09:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:14,504 INFO L93 Difference]: Finished difference Result 10365 states and 29272 transitions. [2022-02-18 14:09:14,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:14,504 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 [2022-02-18 14:09:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:14,525 INFO L225 Difference]: With dead ends: 10365 [2022-02-18 14:09:14,525 INFO L226 Difference]: Without dead ends: 10320 [2022-02-18 14:09:14,526 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 [2022-02-18 14:09:14,527 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 [2022-02-18 14:09:14,527 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] [2022-02-18 14:09:14,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10320 states. [2022-02-18 14:09:14,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10320 to 5474. [2022-02-18 14:09:14,622 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) [2022-02-18 14:09:14,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15405 transitions. [2022-02-18 14:09:14,630 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15405 transitions. Word has length 210 [2022-02-18 14:09:14,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:14,631 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15405 transitions. [2022-02-18 14:09:14,631 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) [2022-02-18 14:09:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15405 transitions. [2022-02-18 14:09:14,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-18 14:09:14,639 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:14,640 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:14,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-18 14:09:14,640 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:14,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:14,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1167848292, now seen corresponding path program 5 times [2022-02-18 14:09:14,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:14,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519620479] [2022-02-18 14:09:14,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:14,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:14,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:14,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519620479] [2022-02-18 14:09:14,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519620479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:14,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:14,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:14,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642279077] [2022-02-18 14:09:14,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:14,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:14,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:14,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:14,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:14,727 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) [2022-02-18 14:09:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:14,859 INFO L93 Difference]: Finished difference Result 11362 states and 32124 transitions. [2022-02-18 14:09:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:14,860 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 [2022-02-18 14:09:14,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:14,882 INFO L225 Difference]: With dead ends: 11362 [2022-02-18 14:09:14,882 INFO L226 Difference]: Without dead ends: 11347 [2022-02-18 14:09:14,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-18 14:09:14,883 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:14,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1047 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-02-18 14:09:14,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5410. [2022-02-18 14:09:14,992 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) [2022-02-18 14:09:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 15229 transitions. [2022-02-18 14:09:15,005 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 15229 transitions. Word has length 210 [2022-02-18 14:09:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:15,005 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 15229 transitions. [2022-02-18 14:09:15,006 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) [2022-02-18 14:09:15,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15229 transitions. [2022-02-18 14:09:15,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-18 14:09:15,014 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:15,015 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:15,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-18 14:09:15,015 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:15,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:15,016 INFO L85 PathProgramCache]: Analyzing trace with hash 473292210, now seen corresponding path program 6 times [2022-02-18 14:09:15,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:15,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7508140] [2022-02-18 14:09:15,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:15,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:15,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:15,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7508140] [2022-02-18 14:09:15,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7508140] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:15,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:15,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:09:15,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824763945] [2022-02-18 14:09:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:15,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:09:15,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:15,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:09:15,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:09:15,109 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) [2022-02-18 14:09:15,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:15,237 INFO L93 Difference]: Finished difference Result 9843 states and 28001 transitions. [2022-02-18 14:09:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 14:09:15,237 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 [2022-02-18 14:09:15,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:15,252 INFO L225 Difference]: With dead ends: 9843 [2022-02-18 14:09:15,252 INFO L226 Difference]: Without dead ends: 9828 [2022-02-18 14:09:15,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:09:15,253 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:15,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1105 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:09:15,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9828 states. [2022-02-18 14:09:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9828 to 5378. [2022-02-18 14:09:15,356 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) [2022-02-18 14:09:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15137 transitions. [2022-02-18 14:09:15,410 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15137 transitions. Word has length 210 [2022-02-18 14:09:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:15,410 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15137 transitions. [2022-02-18 14:09:15,410 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) [2022-02-18 14:09:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15137 transitions. [2022-02-18 14:09:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:15,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:15,416 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:15,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-18 14:09:15,416 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:15,417 INFO L85 PathProgramCache]: Analyzing trace with hash 245695604, now seen corresponding path program 1 times [2022-02-18 14:09:15,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:15,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741979092] [2022-02-18 14:09:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:15,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:15,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:15,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741979092] [2022-02-18 14:09:15,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741979092] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:15,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:15,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:15,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770819943] [2022-02-18 14:09:15,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:15,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:15,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:15,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:15,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:15,910 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) [2022-02-18 14:09:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:17,374 INFO L93 Difference]: Finished difference Result 20352 states and 57640 transitions. [2022-02-18 14:09:17,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-18 14:09:17,375 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 [2022-02-18 14:09:17,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:17,410 INFO L225 Difference]: With dead ends: 20352 [2022-02-18 14:09:17,410 INFO L226 Difference]: Without dead ends: 20352 [2022-02-18 14:09:17,411 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 [2022-02-18 14:09:17,412 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 2304 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-18 14:09:17,412 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] [2022-02-18 14:09:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20352 states. [2022-02-18 14:09:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20352 to 6848. [2022-02-18 14:09:17,597 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) [2022-02-18 14:09:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 19194 transitions. [2022-02-18 14:09:17,609 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 19194 transitions. Word has length 223 [2022-02-18 14:09:17,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:17,609 INFO L470 AbstractCegarLoop]: Abstraction has 6848 states and 19194 transitions. [2022-02-18 14:09:17,609 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) [2022-02-18 14:09:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 19194 transitions. [2022-02-18 14:09:17,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:17,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:17,618 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] [2022-02-18 14:09:17,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-18 14:09:17,618 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:17,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:17,619 INFO L85 PathProgramCache]: Analyzing trace with hash -177626872, now seen corresponding path program 2 times [2022-02-18 14:09:17,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:17,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388806857] [2022-02-18 14:09:17,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:17,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:18,113 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:18,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:18,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388806857] [2022-02-18 14:09:18,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388806857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:18,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:18,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:18,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824480531] [2022-02-18 14:09:18,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:18,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:18,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:18,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:18,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:18,115 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) [2022-02-18 14:09:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:19,258 INFO L93 Difference]: Finished difference Result 19662 states and 55858 transitions. [2022-02-18 14:09:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-18 14:09:19,258 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 [2022-02-18 14:09:19,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:19,292 INFO L225 Difference]: With dead ends: 19662 [2022-02-18 14:09:19,292 INFO L226 Difference]: Without dead ends: 19662 [2022-02-18 14:09:19,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2022-02-18 14:09:19,293 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 [2022-02-18 14:09:19,294 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] [2022-02-18 14:09:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19662 states. [2022-02-18 14:09:19,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19662 to 6884. [2022-02-18 14:09:19,439 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) [2022-02-18 14:09:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 19329 transitions. [2022-02-18 14:09:19,451 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 19329 transitions. Word has length 223 [2022-02-18 14:09:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:19,451 INFO L470 AbstractCegarLoop]: Abstraction has 6884 states and 19329 transitions. [2022-02-18 14:09:19,451 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) [2022-02-18 14:09:19,452 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 19329 transitions. [2022-02-18 14:09:19,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:19,460 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:19,460 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:19,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-18 14:09:19,460 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1212045622, now seen corresponding path program 3 times [2022-02-18 14:09:19,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:19,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737980643] [2022-02-18 14:09:19,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:19,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:20,002 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:20,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:20,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737980643] [2022-02-18 14:09:20,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737980643] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:20,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:20,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:20,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958740248] [2022-02-18 14:09:20,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:20,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:20,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:20,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:20,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:20,004 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) [2022-02-18 14:09:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:21,262 INFO L93 Difference]: Finished difference Result 15904 states and 45390 transitions. [2022-02-18 14:09:21,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-18 14:09:21,262 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 [2022-02-18 14:09:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:21,298 INFO L225 Difference]: With dead ends: 15904 [2022-02-18 14:09:21,298 INFO L226 Difference]: Without dead ends: 15904 [2022-02-18 14:09:21,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=420, Invalid=1650, Unknown=0, NotChecked=0, Total=2070 [2022-02-18 14:09:21,299 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 [2022-02-18 14:09:21,299 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] [2022-02-18 14:09:21,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2022-02-18 14:09:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 6888. [2022-02-18 14:09:21,438 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) [2022-02-18 14:09:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 19344 transitions. [2022-02-18 14:09:21,450 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 19344 transitions. Word has length 223 [2022-02-18 14:09:21,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:21,450 INFO L470 AbstractCegarLoop]: Abstraction has 6888 states and 19344 transitions. [2022-02-18 14:09:21,450 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) [2022-02-18 14:09:21,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 19344 transitions. [2022-02-18 14:09:21,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:21,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:21,459 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:21,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-18 14:09:21,459 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:21,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:21,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1115900114, now seen corresponding path program 4 times [2022-02-18 14:09:21,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:21,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722747430] [2022-02-18 14:09:21,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:21,914 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:21,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:21,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722747430] [2022-02-18 14:09:21,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722747430] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:21,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:21,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:21,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449123564] [2022-02-18 14:09:21,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:21,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:21,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:21,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:21,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:21,916 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) [2022-02-18 14:09:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:22,949 INFO L93 Difference]: Finished difference Result 14204 states and 40300 transitions. [2022-02-18 14:09:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:22,950 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 [2022-02-18 14:09:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:22,972 INFO L225 Difference]: With dead ends: 14204 [2022-02-18 14:09:22,973 INFO L226 Difference]: Without dead ends: 14204 [2022-02-18 14:09:22,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=376, Invalid=1516, Unknown=0, NotChecked=0, Total=1892 [2022-02-18 14:09:22,974 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 [2022-02-18 14:09:22,974 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] [2022-02-18 14:09:22,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14204 states. [2022-02-18 14:09:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14204 to 6892. [2022-02-18 14:09:23,114 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) [2022-02-18 14:09:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 19363 transitions. [2022-02-18 14:09:23,126 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 19363 transitions. Word has length 223 [2022-02-18 14:09:23,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:23,126 INFO L470 AbstractCegarLoop]: Abstraction has 6892 states and 19363 transitions. [2022-02-18 14:09:23,127 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) [2022-02-18 14:09:23,127 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 19363 transitions. [2022-02-18 14:09:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:23,135 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:23,135 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:23,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-18 14:09:23,135 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:23,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2075401802, now seen corresponding path program 5 times [2022-02-18 14:09:23,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:23,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513488168] [2022-02-18 14:09:23,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:23,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:23,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:23,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513488168] [2022-02-18 14:09:23,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513488168] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:23,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:23,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:23,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539525108] [2022-02-18 14:09:23,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:23,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:23,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:23,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:23,613 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) [2022-02-18 14:09:24,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:24,622 INFO L93 Difference]: Finished difference Result 13944 states and 39604 transitions. [2022-02-18 14:09:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:24,622 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 [2022-02-18 14:09:24,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:24,644 INFO L225 Difference]: With dead ends: 13944 [2022-02-18 14:09:24,645 INFO L226 Difference]: Without dead ends: 13944 [2022-02-18 14:09:24,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=390, Invalid=1502, Unknown=0, NotChecked=0, Total=1892 [2022-02-18 14:09:24,646 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 [2022-02-18 14:09:24,646 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] [2022-02-18 14:09:24,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2022-02-18 14:09:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 6996. [2022-02-18 14:09:24,755 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) [2022-02-18 14:09:24,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 19661 transitions. [2022-02-18 14:09:24,767 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 19661 transitions. Word has length 223 [2022-02-18 14:09:24,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:24,767 INFO L470 AbstractCegarLoop]: Abstraction has 6996 states and 19661 transitions. [2022-02-18 14:09:24,768 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) [2022-02-18 14:09:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 19661 transitions. [2022-02-18 14:09:24,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:24,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:24,779 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:24,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-18 14:09:24,780 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:24,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:24,780 INFO L85 PathProgramCache]: Analyzing trace with hash 248086366, now seen corresponding path program 6 times [2022-02-18 14:09:24,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:24,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142560259] [2022-02-18 14:09:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:24,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:25,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:25,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142560259] [2022-02-18 14:09:25,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142560259] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:25,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:25,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:25,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64604107] [2022-02-18 14:09:25,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:25,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:25,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:25,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:25,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:25,187 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) [2022-02-18 14:09:26,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:26,314 INFO L93 Difference]: Finished difference Result 21102 states and 60162 transitions. [2022-02-18 14:09:26,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-18 14:09:26,315 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 [2022-02-18 14:09:26,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:26,351 INFO L225 Difference]: With dead ends: 21102 [2022-02-18 14:09:26,351 INFO L226 Difference]: Without dead ends: 21102 [2022-02-18 14:09:26,351 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 [2022-02-18 14:09:26,352 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 [2022-02-18 14:09:26,352 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] [2022-02-18 14:09:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21102 states. [2022-02-18 14:09:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21102 to 7068. [2022-02-18 14:09:26,505 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) [2022-02-18 14:09:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 19895 transitions. [2022-02-18 14:09:26,517 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 19895 transitions. Word has length 223 [2022-02-18 14:09:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:26,517 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 19895 transitions. [2022-02-18 14:09:26,517 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) [2022-02-18 14:09:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 19895 transitions. [2022-02-18 14:09:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:26,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:26,526 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:26,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-18 14:09:26,526 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:26,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:26,526 INFO L85 PathProgramCache]: Analyzing trace with hash -786332384, now seen corresponding path program 7 times [2022-02-18 14:09:26,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:26,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228885997] [2022-02-18 14:09:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:26,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:26,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:26,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228885997] [2022-02-18 14:09:26,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228885997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:26,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:26,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:26,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560197955] [2022-02-18 14:09:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:26,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:26,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:26,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:26,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:26,934 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) [2022-02-18 14:09:27,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:27,955 INFO L93 Difference]: Finished difference Result 17996 states and 51659 transitions. [2022-02-18 14:09:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-18 14:09:27,955 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 [2022-02-18 14:09:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:27,988 INFO L225 Difference]: With dead ends: 17996 [2022-02-18 14:09:27,988 INFO L226 Difference]: Without dead ends: 17996 [2022-02-18 14:09:27,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=427, Invalid=1643, Unknown=0, NotChecked=0, Total=2070 [2022-02-18 14:09:27,989 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 [2022-02-18 14:09:27,990 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] [2022-02-18 14:09:28,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-02-18 14:09:28,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 7072. [2022-02-18 14:09:28,160 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) [2022-02-18 14:09:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 19910 transitions. [2022-02-18 14:09:28,173 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 19910 transitions. Word has length 223 [2022-02-18 14:09:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:28,173 INFO L470 AbstractCegarLoop]: Abstraction has 7072 states and 19910 transitions. [2022-02-18 14:09:28,173 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) [2022-02-18 14:09:28,173 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 19910 transitions. [2022-02-18 14:09:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:28,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:28,182 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:28,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-18 14:09:28,182 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1541613352, now seen corresponding path program 8 times [2022-02-18 14:09:28,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:28,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723862650] [2022-02-18 14:09:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:28,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:28,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723862650] [2022-02-18 14:09:28,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723862650] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:28,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:28,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:28,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405118149] [2022-02-18 14:09:28,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:28,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:28,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:28,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:28,588 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) [2022-02-18 14:09:29,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:29,519 INFO L93 Difference]: Finished difference Result 16296 states and 46569 transitions. [2022-02-18 14:09:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:29,520 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 [2022-02-18 14:09:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:29,549 INFO L225 Difference]: With dead ends: 16296 [2022-02-18 14:09:29,549 INFO L226 Difference]: Without dead ends: 16296 [2022-02-18 14:09:29,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=383, Invalid=1509, Unknown=0, NotChecked=0, Total=1892 [2022-02-18 14:09:29,550 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 [2022-02-18 14:09:29,550 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] [2022-02-18 14:09:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-02-18 14:09:29,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 7076. [2022-02-18 14:09:29,677 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) [2022-02-18 14:09:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7076 states to 7076 states and 19929 transitions. [2022-02-18 14:09:29,691 INFO L78 Accepts]: Start accepts. Automaton has 7076 states and 19929 transitions. Word has length 223 [2022-02-18 14:09:29,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:29,692 INFO L470 AbstractCegarLoop]: Abstraction has 7076 states and 19929 transitions. [2022-02-18 14:09:29,692 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) [2022-02-18 14:09:29,692 INFO L276 IsEmpty]: Start isEmpty. Operand 7076 states and 19929 transitions. [2022-02-18 14:09:29,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:29,700 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:29,701 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:29,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-18 14:09:29,701 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:29,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1793852256, now seen corresponding path program 9 times [2022-02-18 14:09:29,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:29,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116498207] [2022-02-18 14:09:29,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:29,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:30,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:30,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116498207] [2022-02-18 14:09:30,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116498207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:30,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:30,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:30,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039456873] [2022-02-18 14:09:30,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:30,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:30,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:30,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:30,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:30,093 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) [2022-02-18 14:09:31,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:31,027 INFO L93 Difference]: Finished difference Result 16036 states and 45873 transitions. [2022-02-18 14:09:31,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:31,027 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 [2022-02-18 14:09:31,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:31,055 INFO L225 Difference]: With dead ends: 16036 [2022-02-18 14:09:31,055 INFO L226 Difference]: Without dead ends: 16036 [2022-02-18 14:09:31,055 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 [2022-02-18 14:09:31,056 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 [2022-02-18 14:09:31,056 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] [2022-02-18 14:09:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-02-18 14:09:31,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 7032. [2022-02-18 14:09:31,175 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) [2022-02-18 14:09:31,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 19760 transitions. [2022-02-18 14:09:31,187 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 19760 transitions. Word has length 223 [2022-02-18 14:09:31,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:31,187 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 19760 transitions. [2022-02-18 14:09:31,187 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) [2022-02-18 14:09:31,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 19760 transitions. [2022-02-18 14:09:31,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:31,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:31,196 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:31,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-18 14:09:31,196 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:31,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash 559291998, now seen corresponding path program 10 times [2022-02-18 14:09:31,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:31,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935450344] [2022-02-18 14:09:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:31,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:31,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:31,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935450344] [2022-02-18 14:09:31,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935450344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:31,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:31,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:31,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782714752] [2022-02-18 14:09:31,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:31,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:31,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:31,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:31,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:31,636 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) [2022-02-18 14:09:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:32,555 INFO L93 Difference]: Finished difference Result 16588 states and 47447 transitions. [2022-02-18 14:09:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-18 14:09:32,557 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 [2022-02-18 14:09:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:32,586 INFO L225 Difference]: With dead ends: 16588 [2022-02-18 14:09:32,586 INFO L226 Difference]: Without dead ends: 16588 [2022-02-18 14:09:32,587 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 [2022-02-18 14:09:32,587 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 [2022-02-18 14:09:32,587 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] [2022-02-18 14:09:32,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16588 states. [2022-02-18 14:09:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16588 to 7040. [2022-02-18 14:09:32,713 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) [2022-02-18 14:09:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-02-18 14:09:32,725 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-02-18 14:09:32,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:32,725 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-02-18 14:09:32,725 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) [2022-02-18 14:09:32,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-02-18 14:09:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:32,734 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:32,734 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:32,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-18 14:09:32,735 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:32,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:32,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1407729562, now seen corresponding path program 11 times [2022-02-18 14:09:32,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:32,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335345166] [2022-02-18 14:09:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:32,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:33,141 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:33,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:33,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335345166] [2022-02-18 14:09:33,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335345166] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:33,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:33,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:33,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427549254] [2022-02-18 14:09:33,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:33,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:33,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:33,143 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) [2022-02-18 14:09:33,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:33,994 INFO L93 Difference]: Finished difference Result 15344 states and 43775 transitions. [2022-02-18 14:09:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:33,994 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 [2022-02-18 14:09:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:34,019 INFO L225 Difference]: With dead ends: 15344 [2022-02-18 14:09:34,019 INFO L226 Difference]: Without dead ends: 15344 [2022-02-18 14:09:34,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-02-18 14:09:34,020 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 [2022-02-18 14:09:34,020 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] [2022-02-18 14:09:34,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2022-02-18 14:09:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 7044. [2022-02-18 14:09:34,135 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) [2022-02-18 14:09:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-02-18 14:09:34,147 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-02-18 14:09:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:34,147 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-02-18 14:09:34,147 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) [2022-02-18 14:09:34,147 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-02-18 14:09:34,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:34,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:34,155 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:34,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-18 14:09:34,155 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:34,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:34,156 INFO L85 PathProgramCache]: Analyzing trace with hash -448227874, now seen corresponding path program 12 times [2022-02-18 14:09:34,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:34,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969798971] [2022-02-18 14:09:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:34,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:34,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:34,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969798971] [2022-02-18 14:09:34,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969798971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:34,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:34,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:34,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905039788] [2022-02-18 14:09:34,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:34,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:34,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:34,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:34,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:34,537 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) [2022-02-18 14:09:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:35,402 INFO L93 Difference]: Finished difference Result 15084 states and 43079 transitions. [2022-02-18 14:09:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:35,402 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 [2022-02-18 14:09:35,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:35,427 INFO L225 Difference]: With dead ends: 15084 [2022-02-18 14:09:35,427 INFO L226 Difference]: Without dead ends: 15084 [2022-02-18 14:09:35,428 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 [2022-02-18 14:09:35,428 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:35,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 3428 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:09:35,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15084 states. [2022-02-18 14:09:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15084 to 7036. [2022-02-18 14:09:35,588 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) [2022-02-18 14:09:35,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 19771 transitions. [2022-02-18 14:09:35,600 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 19771 transitions. Word has length 223 [2022-02-18 14:09:35,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:35,600 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 19771 transitions. [2022-02-18 14:09:35,600 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) [2022-02-18 14:09:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 19771 transitions. [2022-02-18 14:09:35,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:35,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:35,611 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:35,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-18 14:09:35,611 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:35,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:35,612 INFO L85 PathProgramCache]: Analyzing trace with hash -526466794, now seen corresponding path program 13 times [2022-02-18 14:09:35,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:35,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294128237] [2022-02-18 14:09:35,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:35,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:36,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:36,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294128237] [2022-02-18 14:09:36,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294128237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:36,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:36,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:36,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643119641] [2022-02-18 14:09:36,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:36,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:36,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:36,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:36,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:36,015 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) [2022-02-18 14:09:36,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:36,861 INFO L93 Difference]: Finished difference Result 14852 states and 42250 transitions. [2022-02-18 14:09:36,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:36,861 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 [2022-02-18 14:09:36,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:36,886 INFO L225 Difference]: With dead ends: 14852 [2022-02-18 14:09:36,886 INFO L226 Difference]: Without dead ends: 14852 [2022-02-18 14:09:36,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-02-18 14:09:36,887 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 [2022-02-18 14:09:36,887 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] [2022-02-18 14:09:36,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14852 states. [2022-02-18 14:09:36,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 7044. [2022-02-18 14:09:37,002 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) [2022-02-18 14:09:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-02-18 14:09:37,014 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-02-18 14:09:37,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:37,015 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-02-18 14:09:37,015 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) [2022-02-18 14:09:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-02-18 14:09:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:37,023 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:37,023 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:37,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-18 14:09:37,023 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:37,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:37,024 INFO L85 PathProgramCache]: Analyzing trace with hash 433034894, now seen corresponding path program 14 times [2022-02-18 14:09:37,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:37,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485082206] [2022-02-18 14:09:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:37,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:37,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:37,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485082206] [2022-02-18 14:09:37,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485082206] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:37,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:37,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:37,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058686872] [2022-02-18 14:09:37,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:37,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:37,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:37,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:37,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:37,417 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) [2022-02-18 14:09:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:38,305 INFO L93 Difference]: Finished difference Result 14676 states and 41797 transitions. [2022-02-18 14:09:38,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:09:38,305 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 [2022-02-18 14:09:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:38,330 INFO L225 Difference]: With dead ends: 14676 [2022-02-18 14:09:38,330 INFO L226 Difference]: Without dead ends: 14676 [2022-02-18 14:09:38,330 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 [2022-02-18 14:09:38,331 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:38,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 3402 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:09:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-02-18 14:09:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 7040. [2022-02-18 14:09:38,469 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) [2022-02-18 14:09:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-02-18 14:09:38,484 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-02-18 14:09:38,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:38,484 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-02-18 14:09:38,484 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) [2022-02-18 14:09:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-02-18 14:09:38,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:38,493 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:38,494 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:38,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-18 14:09:38,494 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:38,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:38,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1262740864, now seen corresponding path program 15 times [2022-02-18 14:09:38,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:38,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101843027] [2022-02-18 14:09:38,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:38,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:38,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:38,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101843027] [2022-02-18 14:09:38,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101843027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:38,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:38,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:09:38,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42231970] [2022-02-18 14:09:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:38,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:09:38,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:38,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:09:38,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:09:38,914 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) [2022-02-18 14:09:39,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:39,850 INFO L93 Difference]: Finished difference Result 15708 states and 44747 transitions. [2022-02-18 14:09:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-18 14:09:39,850 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 [2022-02-18 14:09:39,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:39,876 INFO L225 Difference]: With dead ends: 15708 [2022-02-18 14:09:39,876 INFO L226 Difference]: Without dead ends: 15708 [2022-02-18 14:09:39,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=449, Invalid=1621, Unknown=0, NotChecked=0, Total=2070 [2022-02-18 14:09:39,877 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:39,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1550 Valid, 3244 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:09:39,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15708 states. [2022-02-18 14:09:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15708 to 7144. [2022-02-18 14:09:40,001 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) [2022-02-18 14:09:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 20084 transitions. [2022-02-18 14:09:40,016 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 20084 transitions. Word has length 223 [2022-02-18 14:09:40,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:40,017 INFO L470 AbstractCegarLoop]: Abstraction has 7144 states and 20084 transitions. [2022-02-18 14:09:40,017 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) [2022-02-18 14:09:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 20084 transitions. [2022-02-18 14:09:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:40,027 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:40,027 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:40,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-18 14:09:40,027 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:40,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:40,027 INFO L85 PathProgramCache]: Analyzing trace with hash 550123268, now seen corresponding path program 16 times [2022-02-18 14:09:40,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:40,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422328630] [2022-02-18 14:09:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:40,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:40,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422328630] [2022-02-18 14:09:40,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422328630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:40,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:40,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:40,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496235951] [2022-02-18 14:09:40,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:40,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:40,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:40,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:40,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:40,338 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) [2022-02-18 14:09:41,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:41,201 INFO L93 Difference]: Finished difference Result 24183 states and 68741 transitions. [2022-02-18 14:09:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-18 14:09:41,202 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 [2022-02-18 14:09:41,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:41,239 INFO L225 Difference]: With dead ends: 24183 [2022-02-18 14:09:41,239 INFO L226 Difference]: Without dead ends: 24183 [2022-02-18 14:09:41,239 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 [2022-02-18 14:09:41,240 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 [2022-02-18 14:09:41,240 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] [2022-02-18 14:09:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-02-18 14:09:41,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 7540. [2022-02-18 14:09:41,394 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) [2022-02-18 14:09:41,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-02-18 14:09:41,408 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-02-18 14:09:41,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:41,408 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-02-18 14:09:41,408 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) [2022-02-18 14:09:41,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-02-18 14:09:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:41,417 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:41,417 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:41,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-18 14:09:41,417 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:41,418 INFO L85 PathProgramCache]: Analyzing trace with hash -484295482, now seen corresponding path program 17 times [2022-02-18 14:09:41,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:41,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274584615] [2022-02-18 14:09:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:41,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:41,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:41,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274584615] [2022-02-18 14:09:41,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274584615] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:41,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:41,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:41,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506171180] [2022-02-18 14:09:41,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:41,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:41,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:41,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:41,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:41,707 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) [2022-02-18 14:09:42,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:42,383 INFO L93 Difference]: Finished difference Result 21077 states and 60238 transitions. [2022-02-18 14:09:42,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:09:42,384 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 [2022-02-18 14:09:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:42,420 INFO L225 Difference]: With dead ends: 21077 [2022-02-18 14:09:42,421 INFO L226 Difference]: Without dead ends: 21077 [2022-02-18 14:09:42,421 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 [2022-02-18 14:09:42,421 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 [2022-02-18 14:09:42,421 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] [2022-02-18 14:09:42,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21077 states. [2022-02-18 14:09:42,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21077 to 7544. [2022-02-18 14:09:42,585 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) [2022-02-18 14:09:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-02-18 14:09:42,598 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-02-18 14:09:42,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:42,598 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-02-18 14:09:42,598 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) [2022-02-18 14:09:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-02-18 14:09:42,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:42,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:42,607 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:42,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-18 14:09:42,608 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:42,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:42,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1843650254, now seen corresponding path program 18 times [2022-02-18 14:09:42,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:42,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634688680] [2022-02-18 14:09:42,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:42,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:42,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:42,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634688680] [2022-02-18 14:09:42,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634688680] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:42,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:42,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:42,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294852898] [2022-02-18 14:09:42,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:42,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:42,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:42,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:42,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:42,891 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) [2022-02-18 14:09:43,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:43,551 INFO L93 Difference]: Finished difference Result 19377 states and 55148 transitions. [2022-02-18 14:09:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:43,551 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 [2022-02-18 14:09:43,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:43,640 INFO L225 Difference]: With dead ends: 19377 [2022-02-18 14:09:43,640 INFO L226 Difference]: Without dead ends: 19377 [2022-02-18 14:09:43,641 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 [2022-02-18 14:09:43,641 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:43,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1291 Valid, 3599 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:09:43,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19377 states. [2022-02-18 14:09:43,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19377 to 7548. [2022-02-18 14:09:43,767 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) [2022-02-18 14:09:43,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-02-18 14:09:43,781 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-02-18 14:09:43,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:43,781 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-02-18 14:09:43,781 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) [2022-02-18 14:09:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-02-18 14:09:43,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:43,790 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:43,790 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] [2022-02-18 14:09:43,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-18 14:09:43,790 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:43,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:43,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1491815354, now seen corresponding path program 19 times [2022-02-18 14:09:43,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:43,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273678719] [2022-02-18 14:09:43,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:43,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:44,089 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:44,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:44,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273678719] [2022-02-18 14:09:44,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273678719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:44,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:44,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:44,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405865514] [2022-02-18 14:09:44,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:44,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:44,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:44,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:44,091 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) [2022-02-18 14:09:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:44,666 INFO L93 Difference]: Finished difference Result 19117 states and 54452 transitions. [2022-02-18 14:09:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:44,667 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 [2022-02-18 14:09:44,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:44,701 INFO L225 Difference]: With dead ends: 19117 [2022-02-18 14:09:44,701 INFO L226 Difference]: Without dead ends: 19117 [2022-02-18 14:09:44,701 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 [2022-02-18 14:09:44,702 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1221 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-18 14:09:44,702 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] [2022-02-18 14:09:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19117 states. [2022-02-18 14:09:44,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19117 to 7504. [2022-02-18 14:09:44,848 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) [2022-02-18 14:09:44,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-02-18 14:09:44,861 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-02-18 14:09:44,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:44,862 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-02-18 14:09:44,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:09:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-02-18 14:09:44,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:44,871 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:44,872 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:44,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-18 14:09:44,872 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:44,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:44,872 INFO L85 PathProgramCache]: Analyzing trace with hash 861328900, now seen corresponding path program 20 times [2022-02-18 14:09:44,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:44,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792626008] [2022-02-18 14:09:44,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:44,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:45,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:45,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792626008] [2022-02-18 14:09:45,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792626008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:45,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:45,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:45,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811061103] [2022-02-18 14:09:45,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:45,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:45,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:45,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:45,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:45,181 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) [2022-02-18 14:09:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:45,787 INFO L93 Difference]: Finished difference Result 21573 states and 61766 transitions. [2022-02-18 14:09:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:09:45,787 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 [2022-02-18 14:09:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:45,828 INFO L225 Difference]: With dead ends: 21573 [2022-02-18 14:09:45,828 INFO L226 Difference]: Without dead ends: 21573 [2022-02-18 14:09:45,829 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 [2022-02-18 14:09:45,829 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1562 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:45,829 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] [2022-02-18 14:09:45,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21573 states. [2022-02-18 14:09:46,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21573 to 7512. [2022-02-18 14:09:46,022 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) [2022-02-18 14:09:46,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-18 14:09:46,037 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-18 14:09:46,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:46,037 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-18 14:09:46,037 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) [2022-02-18 14:09:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-18 14:09:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:46,047 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:46,047 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:46,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-18 14:09:46,047 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:46,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:46,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1105692660, now seen corresponding path program 21 times [2022-02-18 14:09:46,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:46,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629357614] [2022-02-18 14:09:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:46,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:46,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:46,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629357614] [2022-02-18 14:09:46,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629357614] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:46,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:46,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:46,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099473076] [2022-02-18 14:09:46,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:46,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:46,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:46,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:46,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:46,341 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) [2022-02-18 14:09:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:47,034 INFO L93 Difference]: Finished difference Result 20329 states and 58094 transitions. [2022-02-18 14:09:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:47,034 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 [2022-02-18 14:09:47,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:47,069 INFO L225 Difference]: With dead ends: 20329 [2022-02-18 14:09:47,070 INFO L226 Difference]: Without dead ends: 20329 [2022-02-18 14:09:47,070 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 [2022-02-18 14:09:47,070 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:47,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 3467 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:09:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20329 states. [2022-02-18 14:09:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20329 to 7516. [2022-02-18 14:09:47,227 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) [2022-02-18 14:09:47,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-18 14:09:47,242 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-18 14:09:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:47,242 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-18 14:09:47,242 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) [2022-02-18 14:09:47,242 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-18 14:09:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:47,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:47,251 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] [2022-02-18 14:09:47,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-18 14:09:47,252 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:47,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:47,252 INFO L85 PathProgramCache]: Analyzing trace with hash -146190972, now seen corresponding path program 22 times [2022-02-18 14:09:47,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:47,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721388806] [2022-02-18 14:09:47,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:47,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:47,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:47,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721388806] [2022-02-18 14:09:47,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721388806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:47,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:47,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:47,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322692043] [2022-02-18 14:09:47,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:47,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:47,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:47,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:47,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:47,548 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) [2022-02-18 14:09:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:48,139 INFO L93 Difference]: Finished difference Result 20069 states and 57398 transitions. [2022-02-18 14:09:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:48,140 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 [2022-02-18 14:09:48,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:48,174 INFO L225 Difference]: With dead ends: 20069 [2022-02-18 14:09:48,174 INFO L226 Difference]: Without dead ends: 20069 [2022-02-18 14:09:48,175 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 [2022-02-18 14:09:48,175 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 [2022-02-18 14:09:48,176 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] [2022-02-18 14:09:48,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20069 states. [2022-02-18 14:09:48,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20069 to 7508. [2022-02-18 14:09:48,359 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) [2022-02-18 14:09:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-02-18 14:09:48,373 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-02-18 14:09:48,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:48,373 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-02-18 14:09:48,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:09:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-02-18 14:09:48,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:48,382 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:48,383 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:48,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-18 14:09:48,383 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:48,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:48,383 INFO L85 PathProgramCache]: Analyzing trace with hash -224429892, now seen corresponding path program 23 times [2022-02-18 14:09:48,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:48,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940157893] [2022-02-18 14:09:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:48,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:48,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:48,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940157893] [2022-02-18 14:09:48,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940157893] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:48,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:48,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:48,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774741889] [2022-02-18 14:09:48,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:48,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:48,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:48,674 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) [2022-02-18 14:09:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:49,211 INFO L93 Difference]: Finished difference Result 19837 states and 56569 transitions. [2022-02-18 14:09:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:49,211 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 [2022-02-18 14:09:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:49,245 INFO L225 Difference]: With dead ends: 19837 [2022-02-18 14:09:49,245 INFO L226 Difference]: Without dead ends: 19837 [2022-02-18 14:09:49,246 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 [2022-02-18 14:09:49,246 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 [2022-02-18 14:09:49,246 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] [2022-02-18 14:09:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2022-02-18 14:09:49,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 7516. [2022-02-18 14:09:49,394 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) [2022-02-18 14:09:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-18 14:09:49,407 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-18 14:09:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:49,407 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-18 14:09:49,407 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) [2022-02-18 14:09:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-18 14:09:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:49,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:49,416 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:49,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-18 14:09:49,416 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:49,416 INFO L85 PathProgramCache]: Analyzing trace with hash 735071796, now seen corresponding path program 24 times [2022-02-18 14:09:49,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:49,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619373184] [2022-02-18 14:09:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:49,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:49,702 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:49,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:49,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619373184] [2022-02-18 14:09:49,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619373184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:49,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:49,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:49,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446115997] [2022-02-18 14:09:49,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:49,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:49,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:49,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:49,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:49,704 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) [2022-02-18 14:09:50,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:50,391 INFO L93 Difference]: Finished difference Result 19661 states and 56116 transitions. [2022-02-18 14:09:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:50,392 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 [2022-02-18 14:09:50,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:50,437 INFO L225 Difference]: With dead ends: 19661 [2022-02-18 14:09:50,437 INFO L226 Difference]: Without dead ends: 19661 [2022-02-18 14:09:50,438 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 [2022-02-18 14:09:50,438 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1086 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:50,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3269 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:09:50,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19661 states. [2022-02-18 14:09:50,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19661 to 7512. [2022-02-18 14:09:50,617 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) [2022-02-18 14:09:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-18 14:09:50,702 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-18 14:09:50,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:50,702 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-18 14:09:50,703 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) [2022-02-18 14:09:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-18 14:09:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:50,713 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:50,713 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] [2022-02-18 14:09:50,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-18 14:09:50,713 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash -960703962, now seen corresponding path program 25 times [2022-02-18 14:09:50,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:50,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680582713] [2022-02-18 14:09:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:51,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:51,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680582713] [2022-02-18 14:09:51,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680582713] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:51,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:51,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:51,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933969881] [2022-02-18 14:09:51,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:51,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:51,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:51,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:51,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:51,027 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) [2022-02-18 14:09:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:51,657 INFO L93 Difference]: Finished difference Result 20797 states and 59364 transitions. [2022-02-18 14:09:51,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:09:51,657 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 [2022-02-18 14:09:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:51,693 INFO L225 Difference]: With dead ends: 20797 [2022-02-18 14:09:51,693 INFO L226 Difference]: Without dead ends: 20797 [2022-02-18 14:09:51,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2022-02-18 14:09:51,694 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1166 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:51,694 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] [2022-02-18 14:09:51,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2022-02-18 14:09:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 7468. [2022-02-18 14:09:51,850 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) [2022-02-18 14:09:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 20975 transitions. [2022-02-18 14:09:51,863 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 20975 transitions. Word has length 223 [2022-02-18 14:09:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:51,863 INFO L470 AbstractCegarLoop]: Abstraction has 7468 states and 20975 transitions. [2022-02-18 14:09:51,864 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) [2022-02-18 14:09:51,864 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 20975 transitions. [2022-02-18 14:09:51,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:51,873 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:51,873 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:51,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-18 14:09:51,873 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:51,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash -353734266, now seen corresponding path program 26 times [2022-02-18 14:09:51,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:51,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130526840] [2022-02-18 14:09:51,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:52,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:52,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130526840] [2022-02-18 14:09:52,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130526840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:52,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:52,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:52,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161740851] [2022-02-18 14:09:52,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:52,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:52,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:52,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:52,164 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) [2022-02-18 14:09:52,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:52,790 INFO L93 Difference]: Finished difference Result 19585 states and 55795 transitions. [2022-02-18 14:09:52,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:09:52,791 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 [2022-02-18 14:09:52,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:52,826 INFO L225 Difference]: With dead ends: 19585 [2022-02-18 14:09:52,826 INFO L226 Difference]: Without dead ends: 19585 [2022-02-18 14:09:52,827 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 [2022-02-18 14:09:52,827 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 [2022-02-18 14:09:52,827 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] [2022-02-18 14:09:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19585 states. [2022-02-18 14:09:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19585 to 7512. [2022-02-18 14:09:52,975 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) [2022-02-18 14:09:53,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-18 14:09:53,062 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-18 14:09:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:53,062 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-18 14:09:53,062 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) [2022-02-18 14:09:53,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-18 14:09:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:53,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:53,070 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:53,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-18 14:09:53,071 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:53,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1974211470, now seen corresponding path program 27 times [2022-02-18 14:09:53,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:53,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040854855] [2022-02-18 14:09:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:53,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:53,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040854855] [2022-02-18 14:09:53,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040854855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:53,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:53,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:53,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854261904] [2022-02-18 14:09:53,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:53,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:53,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:53,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:53,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:53,327 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) [2022-02-18 14:09:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:53,879 INFO L93 Difference]: Finished difference Result 18341 states and 52123 transitions. [2022-02-18 14:09:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:53,880 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 [2022-02-18 14:09:53,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:53,912 INFO L225 Difference]: With dead ends: 18341 [2022-02-18 14:09:53,912 INFO L226 Difference]: Without dead ends: 18341 [2022-02-18 14:09:53,912 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 [2022-02-18 14:09:53,913 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 [2022-02-18 14:09:53,913 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] [2022-02-18 14:09:53,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18341 states. [2022-02-18 14:09:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18341 to 7516. [2022-02-18 14:09:54,055 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) [2022-02-18 14:09:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-18 14:09:54,068 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-18 14:09:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:54,068 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-18 14:09:54,069 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) [2022-02-18 14:09:54,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-18 14:09:54,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:54,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:54,078 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:54,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-18 14:09:54,078 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:54,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1361254138, now seen corresponding path program 28 times [2022-02-18 14:09:54,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:54,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872573695] [2022-02-18 14:09:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:54,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:54,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:54,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872573695] [2022-02-18 14:09:54,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872573695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:54,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:54,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:54,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172858729] [2022-02-18 14:09:54,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:54,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:54,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:54,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:54,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:54,372 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) [2022-02-18 14:09:54,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:54,877 INFO L93 Difference]: Finished difference Result 18081 states and 51427 transitions. [2022-02-18 14:09:54,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:54,877 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 [2022-02-18 14:09:54,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:54,908 INFO L225 Difference]: With dead ends: 18081 [2022-02-18 14:09:54,908 INFO L226 Difference]: Without dead ends: 18081 [2022-02-18 14:09:54,908 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 [2022-02-18 14:09:54,909 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 [2022-02-18 14:09:54,909 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] [2022-02-18 14:09:54,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18081 states. [2022-02-18 14:09:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18081 to 7508. [2022-02-18 14:09:55,056 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) [2022-02-18 14:09:55,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-02-18 14:09:55,070 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-02-18 14:09:55,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:55,070 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-02-18 14:09:55,070 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) [2022-02-18 14:09:55,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-02-18 14:09:55,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:55,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:55,080 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] [2022-02-18 14:09:55,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-18 14:09:55,080 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1439493058, now seen corresponding path program 29 times [2022-02-18 14:09:55,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:55,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001460543] [2022-02-18 14:09:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:55,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:55,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:55,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001460543] [2022-02-18 14:09:55,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001460543] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:55,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:55,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:55,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177002552] [2022-02-18 14:09:55,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:55,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:55,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:55,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:55,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:55,400 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) [2022-02-18 14:09:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:55,950 INFO L93 Difference]: Finished difference Result 18749 states and 53401 transitions. [2022-02-18 14:09:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:55,950 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 [2022-02-18 14:09:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:55,994 INFO L225 Difference]: With dead ends: 18749 [2022-02-18 14:09:55,994 INFO L226 Difference]: Without dead ends: 18749 [2022-02-18 14:09:55,995 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 [2022-02-18 14:09:55,995 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 [2022-02-18 14:09:55,995 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] [2022-02-18 14:09:56,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18749 states. [2022-02-18 14:09:56,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18749 to 7516. [2022-02-18 14:09:56,141 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) [2022-02-18 14:09:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-18 14:09:56,155 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-18 14:09:56,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:56,155 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-18 14:09:56,155 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) [2022-02-18 14:09:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-18 14:09:56,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:56,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:56,164 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:56,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-18 14:09:56,164 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:56,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:56,165 INFO L85 PathProgramCache]: Analyzing trace with hash -479991370, now seen corresponding path program 30 times [2022-02-18 14:09:56,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:56,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050933418] [2022-02-18 14:09:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:56,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:56,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:56,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050933418] [2022-02-18 14:09:56,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050933418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:56,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:56,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:56,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76808632] [2022-02-18 14:09:56,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:56,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:56,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:56,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:56,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:56,457 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) [2022-02-18 14:09:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:57,007 INFO L93 Difference]: Finished difference Result 18573 states and 52948 transitions. [2022-02-18 14:09:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:57,007 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 [2022-02-18 14:09:57,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:57,038 INFO L225 Difference]: With dead ends: 18573 [2022-02-18 14:09:57,038 INFO L226 Difference]: Without dead ends: 18573 [2022-02-18 14:09:57,039 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 [2022-02-18 14:09:57,039 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 [2022-02-18 14:09:57,039 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] [2022-02-18 14:09:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18573 states. [2022-02-18 14:09:57,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18573 to 7512. [2022-02-18 14:09:57,186 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) [2022-02-18 14:09:57,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-18 14:09:57,199 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-18 14:09:57,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:57,199 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-18 14:09:57,199 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) [2022-02-18 14:09:57,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-18 14:09:57,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:57,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:57,208 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:57,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-18 14:09:57,208 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:57,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:57,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2119200168, now seen corresponding path program 31 times [2022-02-18 14:09:57,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:57,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136777292] [2022-02-18 14:09:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:57,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:57,506 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:57,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:57,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136777292] [2022-02-18 14:09:57,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136777292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:57,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:57,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:57,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899891226] [2022-02-18 14:09:57,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:57,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:57,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:57,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:57,508 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) [2022-02-18 14:09:58,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:58,161 INFO L93 Difference]: Finished difference Result 19757 states and 56328 transitions. [2022-02-18 14:09:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:09:58,162 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 [2022-02-18 14:09:58,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:58,194 INFO L225 Difference]: With dead ends: 19757 [2022-02-18 14:09:58,195 INFO L226 Difference]: Without dead ends: 19757 [2022-02-18 14:09:58,195 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 [2022-02-18 14:09:58,195 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:09:58,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 3431 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:09:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19757 states. [2022-02-18 14:09:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19757 to 7504. [2022-02-18 14:09:58,336 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) [2022-02-18 14:09:58,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-02-18 14:09:58,349 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-02-18 14:09:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:58,349 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-02-18 14:09:58,349 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) [2022-02-18 14:09:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-02-18 14:09:58,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:58,358 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:58,358 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:58,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-18 14:09:58,358 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:58,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:58,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1905302994, now seen corresponding path program 32 times [2022-02-18 14:09:58,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:58,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36538836] [2022-02-18 14:09:58,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:58,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:58,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:58,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36538836] [2022-02-18 14:09:58,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36538836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:58,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:58,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:58,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371190452] [2022-02-18 14:09:58,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:58,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:58,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:58,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:58,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:58,601 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) [2022-02-18 14:09:59,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:09:59,123 INFO L93 Difference]: Finished difference Result 17845 states and 50587 transitions. [2022-02-18 14:09:59,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:09:59,124 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 [2022-02-18 14:09:59,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:09:59,155 INFO L225 Difference]: With dead ends: 17845 [2022-02-18 14:09:59,155 INFO L226 Difference]: Without dead ends: 17845 [2022-02-18 14:09:59,155 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 [2022-02-18 14:09:59,155 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 [2022-02-18 14:09:59,156 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] [2022-02-18 14:09:59,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17845 states. [2022-02-18 14:09:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17845 to 7548. [2022-02-18 14:09:59,294 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) [2022-02-18 14:09:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-02-18 14:09:59,307 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-02-18 14:09:59,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:09:59,307 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-02-18 14:09:59,307 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) [2022-02-18 14:09:59,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-02-18 14:09:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:09:59,316 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:09:59,316 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:09:59,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-18 14:09:59,316 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:09:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:09:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1430162614, now seen corresponding path program 33 times [2022-02-18 14:09:59,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:09:59,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448902724] [2022-02-18 14:09:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:09:59,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:09:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:09:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:09:59,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:09:59,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448902724] [2022-02-18 14:09:59,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448902724] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:09:59,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:09:59,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:09:59,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151014911] [2022-02-18 14:09:59,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:09:59,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:09:59,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:09:59,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:09:59,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:09:59,574 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) [2022-02-18 14:10:00,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:00,131 INFO L93 Difference]: Finished difference Result 17669 states and 50134 transitions. [2022-02-18 14:10:00,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:00,131 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 [2022-02-18 14:10:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:00,161 INFO L225 Difference]: With dead ends: 17669 [2022-02-18 14:10:00,161 INFO L226 Difference]: Without dead ends: 17669 [2022-02-18 14:10:00,161 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 [2022-02-18 14:10:00,162 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1149 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:00,162 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] [2022-02-18 14:10:00,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17669 states. [2022-02-18 14:10:00,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17669 to 7544. [2022-02-18 14:10:00,326 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) [2022-02-18 14:10:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-02-18 14:10:00,339 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-02-18 14:10:00,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:00,339 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-02-18 14:10:00,339 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) [2022-02-18 14:10:00,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-02-18 14:10:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:00,348 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:00,348 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:00,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-18 14:10:00,349 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:00,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:00,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1169028924, now seen corresponding path program 34 times [2022-02-18 14:10:00,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:00,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335131880] [2022-02-18 14:10:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:00,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:00,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335131880] [2022-02-18 14:10:00,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335131880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:00,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:00,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:00,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924567707] [2022-02-18 14:10:00,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:00,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:00,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:00,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:00,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:00,621 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) [2022-02-18 14:10:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:01,210 INFO L93 Difference]: Finished difference Result 19309 states and 54928 transitions. [2022-02-18 14:10:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:01,210 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 [2022-02-18 14:10:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:01,246 INFO L225 Difference]: With dead ends: 19309 [2022-02-18 14:10:01,246 INFO L226 Difference]: Without dead ends: 19309 [2022-02-18 14:10:01,247 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 [2022-02-18 14:10:01,247 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 [2022-02-18 14:10:01,247 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] [2022-02-18 14:10:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19309 states. [2022-02-18 14:10:01,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19309 to 7540. [2022-02-18 14:10:01,399 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) [2022-02-18 14:10:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-02-18 14:10:01,412 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-02-18 14:10:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:01,413 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-02-18 14:10:01,413 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) [2022-02-18 14:10:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-02-18 14:10:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:01,422 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:01,422 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:01,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-18 14:10:01,422 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 613147846, now seen corresponding path program 35 times [2022-02-18 14:10:01,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:01,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709370608] [2022-02-18 14:10:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:01,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:01,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709370608] [2022-02-18 14:10:01,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709370608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:01,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:01,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:01,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454607761] [2022-02-18 14:10:01,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:01,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:01,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:01,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:01,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:01,714 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) [2022-02-18 14:10:02,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:02,389 INFO L93 Difference]: Finished difference Result 22163 states and 62736 transitions. [2022-02-18 14:10:02,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-18 14:10:02,389 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 [2022-02-18 14:10:02,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:02,425 INFO L225 Difference]: With dead ends: 22163 [2022-02-18 14:10:02,426 INFO L226 Difference]: Without dead ends: 22163 [2022-02-18 14:10:02,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-02-18 14:10:02,426 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 [2022-02-18 14:10:02,426 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] [2022-02-18 14:10:02,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22163 states. [2022-02-18 14:10:02,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22163 to 8476. [2022-02-18 14:10:02,625 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) [2022-02-18 14:10:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 23891 transitions. [2022-02-18 14:10:02,640 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 23891 transitions. Word has length 223 [2022-02-18 14:10:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:02,640 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 23891 transitions. [2022-02-18 14:10:02,641 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) [2022-02-18 14:10:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 23891 transitions. [2022-02-18 14:10:02,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:02,652 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:02,652 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:02,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-18 14:10:02,652 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:02,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:02,652 INFO L85 PathProgramCache]: Analyzing trace with hash -638066722, now seen corresponding path program 36 times [2022-02-18 14:10:02,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:02,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478843113] [2022-02-18 14:10:02,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:02,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:02,941 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:02,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:02,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478843113] [2022-02-18 14:10:02,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478843113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:02,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:02,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:02,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408870563] [2022-02-18 14:10:02,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:02,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:02,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:02,943 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) [2022-02-18 14:10:03,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:03,760 INFO L93 Difference]: Finished difference Result 23424 states and 66686 transitions. [2022-02-18 14:10:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-18 14:10:03,761 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 [2022-02-18 14:10:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:03,810 INFO L225 Difference]: With dead ends: 23424 [2022-02-18 14:10:03,811 INFO L226 Difference]: Without dead ends: 23424 [2022-02-18 14:10:03,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-18 14:10:03,811 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 [2022-02-18 14:10:03,812 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] [2022-02-18 14:10:03,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23424 states. [2022-02-18 14:10:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23424 to 8620. [2022-02-18 14:10:03,991 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) [2022-02-18 14:10:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-02-18 14:10:04,007 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-02-18 14:10:04,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:04,007 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-02-18 14:10:04,007 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) [2022-02-18 14:10:04,007 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-02-18 14:10:04,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:04,017 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:04,017 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:04,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-18 14:10:04,017 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash 114748502, now seen corresponding path program 37 times [2022-02-18 14:10:04,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:04,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914041736] [2022-02-18 14:10:04,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:04,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:04,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914041736] [2022-02-18 14:10:04,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914041736] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:04,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:04,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:04,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388060087] [2022-02-18 14:10:04,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:04,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:04,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:04,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:04,273 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) [2022-02-18 14:10:04,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:04,888 INFO L93 Difference]: Finished difference Result 20879 states and 59701 transitions. [2022-02-18 14:10:04,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:04,888 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 [2022-02-18 14:10:04,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:04,927 INFO L225 Difference]: With dead ends: 20879 [2022-02-18 14:10:04,928 INFO L226 Difference]: Without dead ends: 20879 [2022-02-18 14:10:04,928 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 [2022-02-18 14:10:04,928 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1408 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-18 14:10:04,928 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] [2022-02-18 14:10:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20879 states. [2022-02-18 14:10:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20879 to 8624. [2022-02-18 14:10:05,150 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) [2022-02-18 14:10:05,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-02-18 14:10:05,168 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-02-18 14:10:05,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:05,168 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-02-18 14:10:05,168 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) [2022-02-18 14:10:05,168 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-02-18 14:10:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:05,179 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:05,180 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:05,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-18 14:10:05,180 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:05,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:05,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1852273058, now seen corresponding path program 38 times [2022-02-18 14:10:05,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:05,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618417490] [2022-02-18 14:10:05,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:05,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:05,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:05,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618417490] [2022-02-18 14:10:05,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618417490] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:05,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:05,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:05,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135190265] [2022-02-18 14:10:05,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:05,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:05,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:05,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:05,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:05,425 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) [2022-02-18 14:10:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:05,987 INFO L93 Difference]: Finished difference Result 19179 states and 54611 transitions. [2022-02-18 14:10:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:05,987 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 [2022-02-18 14:10:05,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:06,021 INFO L225 Difference]: With dead ends: 19179 [2022-02-18 14:10:06,021 INFO L226 Difference]: Without dead ends: 19179 [2022-02-18 14:10:06,022 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 [2022-02-18 14:10:06,022 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1257 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:06,022 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] [2022-02-18 14:10:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2022-02-18 14:10:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 8628. [2022-02-18 14:10:06,178 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) [2022-02-18 14:10:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-02-18 14:10:06,194 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-02-18 14:10:06,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:06,194 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-02-18 14:10:06,194 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) [2022-02-18 14:10:06,194 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-02-18 14:10:06,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:06,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:06,206 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:06,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-18 14:10:06,207 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:06,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:06,207 INFO L85 PathProgramCache]: Analyzing trace with hash -892771370, now seen corresponding path program 39 times [2022-02-18 14:10:06,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:06,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957606942] [2022-02-18 14:10:06,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:06,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:06,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:06,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:06,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957606942] [2022-02-18 14:10:06,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957606942] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:06,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:06,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:06,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446435545] [2022-02-18 14:10:06,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:06,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:06,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:06,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:06,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:06,486 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) [2022-02-18 14:10:07,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:07,057 INFO L93 Difference]: Finished difference Result 18919 states and 53915 transitions. [2022-02-18 14:10:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:07,058 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 [2022-02-18 14:10:07,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:07,094 INFO L225 Difference]: With dead ends: 18919 [2022-02-18 14:10:07,094 INFO L226 Difference]: Without dead ends: 18919 [2022-02-18 14:10:07,094 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 [2022-02-18 14:10:07,095 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, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:07,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 3023 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:10:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18919 states. [2022-02-18 14:10:07,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18919 to 8584. [2022-02-18 14:10:07,306 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) [2022-02-18 14:10:07,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-02-18 14:10:07,323 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-02-18 14:10:07,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:07,324 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-02-18 14:10:07,324 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) [2022-02-18 14:10:07,324 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-02-18 14:10:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:07,334 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:07,335 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] [2022-02-18 14:10:07,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-18 14:10:07,335 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:07,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1691161464, now seen corresponding path program 40 times [2022-02-18 14:10:07,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:07,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567431772] [2022-02-18 14:10:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:07,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:07,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:07,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567431772] [2022-02-18 14:10:07,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567431772] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:07,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:07,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:07,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471059116] [2022-02-18 14:10:07,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:07,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:07,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:07,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:07,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:07,651 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) [2022-02-18 14:10:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:08,314 INFO L93 Difference]: Finished difference Result 21375 states and 61229 transitions. [2022-02-18 14:10:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:08,315 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 [2022-02-18 14:10:08,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:08,351 INFO L225 Difference]: With dead ends: 21375 [2022-02-18 14:10:08,351 INFO L226 Difference]: Without dead ends: 21375 [2022-02-18 14:10:08,352 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 [2022-02-18 14:10:08,352 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1147 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:08,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 3453 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:10:08,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21375 states. [2022-02-18 14:10:08,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21375 to 8592. [2022-02-18 14:10:08,519 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) [2022-02-18 14:10:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-18 14:10:08,536 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-18 14:10:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:08,536 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-18 14:10:08,536 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) [2022-02-18 14:10:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-18 14:10:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:08,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:08,547 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:08,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-18 14:10:08,548 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:08,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash 636784272, now seen corresponding path program 41 times [2022-02-18 14:10:08,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:08,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531835728] [2022-02-18 14:10:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:08,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:08,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531835728] [2022-02-18 14:10:08,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531835728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:08,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:08,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:08,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435305514] [2022-02-18 14:10:08,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:08,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:08,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:08,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:08,810 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) [2022-02-18 14:10:09,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:09,319 INFO L93 Difference]: Finished difference Result 20131 states and 57557 transitions. [2022-02-18 14:10:09,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:09,320 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 [2022-02-18 14:10:09,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:09,354 INFO L225 Difference]: With dead ends: 20131 [2022-02-18 14:10:09,354 INFO L226 Difference]: Without dead ends: 20131 [2022-02-18 14:10:09,354 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 [2022-02-18 14:10:09,354 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 [2022-02-18 14:10:09,355 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] [2022-02-18 14:10:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20131 states. [2022-02-18 14:10:09,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 8596. [2022-02-18 14:10:09,517 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) [2022-02-18 14:10:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-18 14:10:09,536 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-18 14:10:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:09,536 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-18 14:10:09,536 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) [2022-02-18 14:10:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-18 14:10:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:09,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:09,548 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] [2022-02-18 14:10:09,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-18 14:10:09,548 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1596285960, now seen corresponding path program 42 times [2022-02-18 14:10:09,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:09,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263722854] [2022-02-18 14:10:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:09,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:09,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:09,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263722854] [2022-02-18 14:10:09,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263722854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:09,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:09,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:09,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323837274] [2022-02-18 14:10:09,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:09,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:09,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:09,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:09,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:09,802 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) [2022-02-18 14:10:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:10,386 INFO L93 Difference]: Finished difference Result 19871 states and 56861 transitions. [2022-02-18 14:10:10,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:10,387 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 [2022-02-18 14:10:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:10,419 INFO L225 Difference]: With dead ends: 19871 [2022-02-18 14:10:10,420 INFO L226 Difference]: Without dead ends: 19871 [2022-02-18 14:10:10,420 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 [2022-02-18 14:10:10,420 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1086 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-18 14:10:10,420 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] [2022-02-18 14:10:10,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19871 states. [2022-02-18 14:10:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19871 to 8588. [2022-02-18 14:10:10,575 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) [2022-02-18 14:10:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-02-18 14:10:10,591 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-02-18 14:10:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:10,591 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-02-18 14:10:10,591 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) [2022-02-18 14:10:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-02-18 14:10:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:10,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:10,601 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:10,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-18 14:10:10,601 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:10,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:10,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1518047040, now seen corresponding path program 43 times [2022-02-18 14:10:10,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:10,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138209319] [2022-02-18 14:10:10,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:10,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:10,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138209319] [2022-02-18 14:10:10,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138209319] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:10,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:10,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:10,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786658597] [2022-02-18 14:10:10,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:10,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:10,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:10,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:10,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:10,849 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) [2022-02-18 14:10:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:11,404 INFO L93 Difference]: Finished difference Result 19639 states and 56032 transitions. [2022-02-18 14:10:11,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:11,405 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 [2022-02-18 14:10:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:11,439 INFO L225 Difference]: With dead ends: 19639 [2022-02-18 14:10:11,439 INFO L226 Difference]: Without dead ends: 19639 [2022-02-18 14:10:11,439 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 [2022-02-18 14:10:11,440 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1218 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-18 14:10:11,440 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] [2022-02-18 14:10:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19639 states. [2022-02-18 14:10:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19639 to 8596. [2022-02-18 14:10:11,596 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) [2022-02-18 14:10:11,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-18 14:10:11,611 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-18 14:10:11,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:11,611 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-18 14:10:11,612 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) [2022-02-18 14:10:11,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-18 14:10:11,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:11,622 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:11,622 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:11,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-18 14:10:11,622 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:11,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:11,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1817418568, now seen corresponding path program 44 times [2022-02-18 14:10:11,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:11,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831950751] [2022-02-18 14:10:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:11,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:11,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:11,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831950751] [2022-02-18 14:10:11,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831950751] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:11,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:11,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:11,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819602053] [2022-02-18 14:10:11,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:11,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:11,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:11,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:11,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:11,880 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) [2022-02-18 14:10:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:12,422 INFO L93 Difference]: Finished difference Result 19463 states and 55579 transitions. [2022-02-18 14:10:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:12,422 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 [2022-02-18 14:10:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:12,454 INFO L225 Difference]: With dead ends: 19463 [2022-02-18 14:10:12,455 INFO L226 Difference]: Without dead ends: 19463 [2022-02-18 14:10:12,455 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 [2022-02-18 14:10:12,455 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 [2022-02-18 14:10:12,455 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] [2022-02-18 14:10:12,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19463 states. [2022-02-18 14:10:12,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19463 to 8592. [2022-02-18 14:10:12,642 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) [2022-02-18 14:10:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-18 14:10:12,659 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-18 14:10:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:12,659 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-18 14:10:12,659 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) [2022-02-18 14:10:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-18 14:10:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:12,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:12,670 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:12,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-18 14:10:12,671 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash 781772970, now seen corresponding path program 45 times [2022-02-18 14:10:12,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:12,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474016730] [2022-02-18 14:10:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:12,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:12,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474016730] [2022-02-18 14:10:12,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474016730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:12,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:12,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:12,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431057876] [2022-02-18 14:10:12,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:12,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:12,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:12,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:12,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:12,931 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) [2022-02-18 14:10:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:13,616 INFO L93 Difference]: Finished difference Result 20599 states and 58827 transitions. [2022-02-18 14:10:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:13,616 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 [2022-02-18 14:10:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:13,653 INFO L225 Difference]: With dead ends: 20599 [2022-02-18 14:10:13,654 INFO L226 Difference]: Without dead ends: 20599 [2022-02-18 14:10:13,654 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 [2022-02-18 14:10:13,654 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 [2022-02-18 14:10:13,655 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] [2022-02-18 14:10:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20599 states. [2022-02-18 14:10:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20599 to 8548. [2022-02-18 14:10:13,830 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) [2022-02-18 14:10:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 24089 transitions. [2022-02-18 14:10:13,846 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 24089 transitions. Word has length 223 [2022-02-18 14:10:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:13,846 INFO L470 AbstractCegarLoop]: Abstraction has 8548 states and 24089 transitions. [2022-02-18 14:10:13,846 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) [2022-02-18 14:10:13,846 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 24089 transitions. [2022-02-18 14:10:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:13,856 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:13,856 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:13,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-18 14:10:13,857 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:13,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1550444754, now seen corresponding path program 46 times [2022-02-18 14:10:13,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:13,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578289245] [2022-02-18 14:10:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:13,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:14,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:14,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578289245] [2022-02-18 14:10:14,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578289245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:14,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:14,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:14,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012414505] [2022-02-18 14:10:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:14,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:14,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:14,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:14,154 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) [2022-02-18 14:10:14,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:14,861 INFO L93 Difference]: Finished difference Result 22432 states and 64293 transitions. [2022-02-18 14:10:14,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:14,862 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 [2022-02-18 14:10:14,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:14,901 INFO L225 Difference]: With dead ends: 22432 [2022-02-18 14:10:14,901 INFO L226 Difference]: Without dead ends: 22432 [2022-02-18 14:10:14,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-02-18 14:10:14,902 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1161 mSDsluCounter, 3504 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:14,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 3817 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:10:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22432 states. [2022-02-18 14:10:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22432 to 8592. [2022-02-18 14:10:15,083 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) [2022-02-18 14:10:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-18 14:10:15,098 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-18 14:10:15,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:15,098 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-18 14:10:15,098 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) [2022-02-18 14:10:15,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-18 14:10:15,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:15,108 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:15,109 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] [2022-02-18 14:10:15,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-18 14:10:15,109 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:15,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash -416576806, now seen corresponding path program 47 times [2022-02-18 14:10:15,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:15,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026498679] [2022-02-18 14:10:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:15,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:15,386 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:15,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:15,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026498679] [2022-02-18 14:10:15,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026498679] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:15,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:15,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:15,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739737846] [2022-02-18 14:10:15,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:15,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:15,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:15,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:15,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:15,387 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) [2022-02-18 14:10:15,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:15,924 INFO L93 Difference]: Finished difference Result 21188 states and 60621 transitions. [2022-02-18 14:10:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:15,925 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 [2022-02-18 14:10:15,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:15,962 INFO L225 Difference]: With dead ends: 21188 [2022-02-18 14:10:15,963 INFO L226 Difference]: Without dead ends: 21188 [2022-02-18 14:10:15,963 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 [2022-02-18 14:10:15,963 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 [2022-02-18 14:10:15,963 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] [2022-02-18 14:10:15,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21188 states. [2022-02-18 14:10:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21188 to 8596. [2022-02-18 14:10:16,133 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) [2022-02-18 14:10:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-18 14:10:16,149 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-18 14:10:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:16,149 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-18 14:10:16,149 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) [2022-02-18 14:10:16,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-18 14:10:16,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:16,159 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:16,159 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] [2022-02-18 14:10:16,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-18 14:10:16,160 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:16,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:16,160 INFO L85 PathProgramCache]: Analyzing trace with hash 542924882, now seen corresponding path program 48 times [2022-02-18 14:10:16,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:16,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766214724] [2022-02-18 14:10:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:16,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:16,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766214724] [2022-02-18 14:10:16,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766214724] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:16,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:16,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:16,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516896428] [2022-02-18 14:10:16,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:16,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:16,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:16,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:16,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:16,451 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) [2022-02-18 14:10:16,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:16,994 INFO L93 Difference]: Finished difference Result 20928 states and 59925 transitions. [2022-02-18 14:10:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:16,994 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 [2022-02-18 14:10:16,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:17,032 INFO L225 Difference]: With dead ends: 20928 [2022-02-18 14:10:17,032 INFO L226 Difference]: Without dead ends: 20928 [2022-02-18 14:10:17,032 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 [2022-02-18 14:10:17,033 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 [2022-02-18 14:10:17,033 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] [2022-02-18 14:10:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20928 states. [2022-02-18 14:10:17,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20928 to 8588. [2022-02-18 14:10:17,214 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) [2022-02-18 14:10:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-02-18 14:10:17,230 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-02-18 14:10:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:17,230 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-02-18 14:10:17,230 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) [2022-02-18 14:10:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-02-18 14:10:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:17,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:17,241 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:17,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-18 14:10:17,241 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:17,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:17,241 INFO L85 PathProgramCache]: Analyzing trace with hash 464685962, now seen corresponding path program 49 times [2022-02-18 14:10:17,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:17,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904694571] [2022-02-18 14:10:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:17,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:17,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904694571] [2022-02-18 14:10:17,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904694571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:17,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:17,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:17,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501115123] [2022-02-18 14:10:17,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:17,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:17,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:17,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:17,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:17,524 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) [2022-02-18 14:10:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:18,088 INFO L93 Difference]: Finished difference Result 21596 states and 61899 transitions. [2022-02-18 14:10:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:18,089 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 [2022-02-18 14:10:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:18,127 INFO L225 Difference]: With dead ends: 21596 [2022-02-18 14:10:18,127 INFO L226 Difference]: Without dead ends: 21596 [2022-02-18 14:10:18,127 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 [2022-02-18 14:10:18,128 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1285 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-18 14:10:18,128 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] [2022-02-18 14:10:18,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21596 states. [2022-02-18 14:10:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21596 to 8596. [2022-02-18 14:10:18,335 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) [2022-02-18 14:10:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-18 14:10:18,350 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-18 14:10:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:18,350 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-18 14:10:18,350 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) [2022-02-18 14:10:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-18 14:10:18,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:18,360 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:18,360 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:18,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-18 14:10:18,360 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:18,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:18,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1424187650, now seen corresponding path program 50 times [2022-02-18 14:10:18,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:18,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794557860] [2022-02-18 14:10:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:18,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:18,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:18,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794557860] [2022-02-18 14:10:18,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794557860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:18,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:18,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:18,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475375047] [2022-02-18 14:10:18,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:18,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:18,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:18,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:18,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:18,660 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) [2022-02-18 14:10:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:19,258 INFO L93 Difference]: Finished difference Result 21420 states and 61446 transitions. [2022-02-18 14:10:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:19,259 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 [2022-02-18 14:10:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:19,294 INFO L225 Difference]: With dead ends: 21420 [2022-02-18 14:10:19,295 INFO L226 Difference]: Without dead ends: 21420 [2022-02-18 14:10:19,295 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 [2022-02-18 14:10:19,295 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 [2022-02-18 14:10:19,295 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] [2022-02-18 14:10:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21420 states. [2022-02-18 14:10:19,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21420 to 8592. [2022-02-18 14:10:19,471 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) [2022-02-18 14:10:19,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-18 14:10:19,487 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-18 14:10:19,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:19,487 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-18 14:10:19,487 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) [2022-02-18 14:10:19,487 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-18 14:10:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:19,497 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:19,497 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:19,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-18 14:10:19,498 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:19,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash -271588108, now seen corresponding path program 51 times [2022-02-18 14:10:19,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:19,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725128100] [2022-02-18 14:10:19,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:19,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:19,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:19,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725128100] [2022-02-18 14:10:19,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725128100] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:19,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:19,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:19,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351035199] [2022-02-18 14:10:19,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:19,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:19,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:19,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:19,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:19,785 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) [2022-02-18 14:10:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:20,420 INFO L93 Difference]: Finished difference Result 22604 states and 64826 transitions. [2022-02-18 14:10:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:20,420 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 [2022-02-18 14:10:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:20,459 INFO L225 Difference]: With dead ends: 22604 [2022-02-18 14:10:20,459 INFO L226 Difference]: Without dead ends: 22604 [2022-02-18 14:10:20,459 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 [2022-02-18 14:10:20,459 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:20,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 3509 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:10:20,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22604 states. [2022-02-18 14:10:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22604 to 8584. [2022-02-18 14:10:20,634 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) [2022-02-18 14:10:20,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-02-18 14:10:20,649 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-02-18 14:10:20,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:20,650 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-02-18 14:10:20,650 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) [2022-02-18 14:10:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-02-18 14:10:20,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:20,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:20,660 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:20,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-18 14:10:20,660 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash -485485282, now seen corresponding path program 52 times [2022-02-18 14:10:20,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:20,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199533708] [2022-02-18 14:10:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:20,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:20,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:20,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199533708] [2022-02-18 14:10:20,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199533708] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:20,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:20,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:20,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572596715] [2022-02-18 14:10:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:20,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:20,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:20,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:20,918 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) [2022-02-18 14:10:21,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:21,510 INFO L93 Difference]: Finished difference Result 20692 states and 59085 transitions. [2022-02-18 14:10:21,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:21,510 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 [2022-02-18 14:10:21,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:21,544 INFO L225 Difference]: With dead ends: 20692 [2022-02-18 14:10:21,544 INFO L226 Difference]: Without dead ends: 20692 [2022-02-18 14:10:21,544 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 [2022-02-18 14:10:21,545 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 [2022-02-18 14:10:21,545 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] [2022-02-18 14:10:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-02-18 14:10:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8628. [2022-02-18 14:10:21,717 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) [2022-02-18 14:10:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-02-18 14:10:21,732 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-02-18 14:10:21,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:21,733 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-02-18 14:10:21,733 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) [2022-02-18 14:10:21,733 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-02-18 14:10:21,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:21,743 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:21,743 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:21,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-18 14:10:21,743 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:21,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash 474016406, now seen corresponding path program 53 times [2022-02-18 14:10:21,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:21,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587784655] [2022-02-18 14:10:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:21,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:22,010 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:22,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:22,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587784655] [2022-02-18 14:10:22,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587784655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:22,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:22,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:22,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407378733] [2022-02-18 14:10:22,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:22,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:22,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:22,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:22,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:22,012 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) [2022-02-18 14:10:22,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:22,604 INFO L93 Difference]: Finished difference Result 20516 states and 58632 transitions. [2022-02-18 14:10:22,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:22,604 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 [2022-02-18 14:10:22,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:22,638 INFO L225 Difference]: With dead ends: 20516 [2022-02-18 14:10:22,638 INFO L226 Difference]: Without dead ends: 20516 [2022-02-18 14:10:22,639 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 [2022-02-18 14:10:22,639 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 [2022-02-18 14:10:22,639 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] [2022-02-18 14:10:22,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20516 states. [2022-02-18 14:10:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20516 to 8624. [2022-02-18 14:10:22,806 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) [2022-02-18 14:10:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-02-18 14:10:22,822 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-02-18 14:10:22,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:22,823 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-02-18 14:10:22,823 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) [2022-02-18 14:10:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-02-18 14:10:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:22,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:22,834 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] [2022-02-18 14:10:22,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-18 14:10:22,834 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:22,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:22,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1221759352, now seen corresponding path program 54 times [2022-02-18 14:10:22,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:22,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275760604] [2022-02-18 14:10:22,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:22,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:23,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:23,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275760604] [2022-02-18 14:10:23,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275760604] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:23,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:23,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:23,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099455584] [2022-02-18 14:10:23,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:23,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:23,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:23,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:23,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:23,076 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) [2022-02-18 14:10:23,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:23,808 INFO L93 Difference]: Finished difference Result 22156 states and 63426 transitions. [2022-02-18 14:10:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:23,809 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 [2022-02-18 14:10:23,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:23,844 INFO L225 Difference]: With dead ends: 22156 [2022-02-18 14:10:23,844 INFO L226 Difference]: Without dead ends: 22156 [2022-02-18 14:10:23,844 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 [2022-02-18 14:10:23,845 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 [2022-02-18 14:10:23,845 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] [2022-02-18 14:10:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22156 states. [2022-02-18 14:10:23,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22156 to 8620. [2022-02-18 14:10:23,993 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) [2022-02-18 14:10:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-02-18 14:10:24,010 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-02-18 14:10:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:24,010 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-02-18 14:10:24,010 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) [2022-02-18 14:10:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-02-18 14:10:24,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:24,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:24,021 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:24,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-18 14:10:24,022 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:24,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:24,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1777640430, now seen corresponding path program 55 times [2022-02-18 14:10:24,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:24,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535518375] [2022-02-18 14:10:24,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:24,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:24,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:24,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535518375] [2022-02-18 14:10:24,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535518375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:24,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:24,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:24,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836918528] [2022-02-18 14:10:24,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:24,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:24,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:24,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:24,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:24,271 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) [2022-02-18 14:10:25,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:25,015 INFO L93 Difference]: Finished difference Result 25218 states and 71830 transitions. [2022-02-18 14:10:25,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-18 14:10:25,015 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 [2022-02-18 14:10:25,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:25,063 INFO L225 Difference]: With dead ends: 25218 [2022-02-18 14:10:25,063 INFO L226 Difference]: Without dead ends: 25218 [2022-02-18 14:10:25,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2022-02-18 14:10:25,064 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 [2022-02-18 14:10:25,064 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] [2022-02-18 14:10:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25218 states. [2022-02-18 14:10:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25218 to 8224. [2022-02-18 14:10:25,255 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) [2022-02-18 14:10:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8224 states to 8224 states and 23198 transitions. [2022-02-18 14:10:25,272 INFO L78 Accepts]: Start accepts. Automaton has 8224 states and 23198 transitions. Word has length 223 [2022-02-18 14:10:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:25,272 INFO L470 AbstractCegarLoop]: Abstraction has 8224 states and 23198 transitions. [2022-02-18 14:10:25,272 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) [2022-02-18 14:10:25,272 INFO L276 IsEmpty]: Start isEmpty. Operand 8224 states and 23198 transitions. [2022-02-18 14:10:25,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:25,284 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:25,285 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:25,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-18 14:10:25,285 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1997484100, now seen corresponding path program 56 times [2022-02-18 14:10:25,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:25,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521492208] [2022-02-18 14:10:25,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:25,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:25,534 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:25,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:25,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521492208] [2022-02-18 14:10:25,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521492208] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:25,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:25,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:25,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579951382] [2022-02-18 14:10:25,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:25,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:25,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:25,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:25,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:25,535 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) [2022-02-18 14:10:26,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:26,270 INFO L93 Difference]: Finished difference Result 21842 states and 62640 transitions. [2022-02-18 14:10:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-18 14:10:26,270 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 [2022-02-18 14:10:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:26,308 INFO L225 Difference]: With dead ends: 21842 [2022-02-18 14:10:26,308 INFO L226 Difference]: Without dead ends: 21842 [2022-02-18 14:10:26,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-18 14:10:26,308 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 [2022-02-18 14:10:26,309 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] [2022-02-18 14:10:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21842 states. [2022-02-18 14:10:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21842 to 8300. [2022-02-18 14:10:26,509 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) [2022-02-18 14:10:26,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8300 states to 8300 states and 23443 transitions. [2022-02-18 14:10:26,524 INFO L78 Accepts]: Start accepts. Automaton has 8300 states and 23443 transitions. Word has length 223 [2022-02-18 14:10:26,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:26,524 INFO L470 AbstractCegarLoop]: Abstraction has 8300 states and 23443 transitions. [2022-02-18 14:10:26,524 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) [2022-02-18 14:10:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 8300 states and 23443 transitions. [2022-02-18 14:10:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:26,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:26,534 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:26,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-18 14:10:26,534 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:26,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:26,535 INFO L85 PathProgramCache]: Analyzing trace with hash 186521022, now seen corresponding path program 57 times [2022-02-18 14:10:26,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:26,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122168658] [2022-02-18 14:10:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:26,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:26,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:26,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122168658] [2022-02-18 14:10:26,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122168658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:26,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:26,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:26,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390482023] [2022-02-18 14:10:26,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:26,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:26,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:26,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:26,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:26,767 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) [2022-02-18 14:10:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:27,337 INFO L93 Difference]: Finished difference Result 17140 states and 49239 transitions. [2022-02-18 14:10:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:27,337 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 [2022-02-18 14:10:27,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:27,368 INFO L225 Difference]: With dead ends: 17140 [2022-02-18 14:10:27,369 INFO L226 Difference]: Without dead ends: 17140 [2022-02-18 14:10:27,369 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 [2022-02-18 14:10:27,369 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1109 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:27,369 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] [2022-02-18 14:10:27,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17140 states. [2022-02-18 14:10:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17140 to 8308. [2022-02-18 14:10:27,519 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) [2022-02-18 14:10:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8308 states to 8308 states and 23477 transitions. [2022-02-18 14:10:27,534 INFO L78 Accepts]: Start accepts. Automaton has 8308 states and 23477 transitions. Word has length 223 [2022-02-18 14:10:27,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:27,534 INFO L470 AbstractCegarLoop]: Abstraction has 8308 states and 23477 transitions. [2022-02-18 14:10:27,534 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) [2022-02-18 14:10:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 8308 states and 23477 transitions. [2022-02-18 14:10:27,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:27,544 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:27,544 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:27,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-18 14:10:27,545 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:27,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1146022710, now seen corresponding path program 58 times [2022-02-18 14:10:27,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:27,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896079440] [2022-02-18 14:10:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:27,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:27,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:27,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896079440] [2022-02-18 14:10:27,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896079440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:27,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:27,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:27,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425300270] [2022-02-18 14:10:27,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:27,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:27,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:27,772 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) [2022-02-18 14:10:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:28,333 INFO L93 Difference]: Finished difference Result 17015 states and 48924 transitions. [2022-02-18 14:10:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:28,333 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 [2022-02-18 14:10:28,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:28,362 INFO L225 Difference]: With dead ends: 17015 [2022-02-18 14:10:28,362 INFO L226 Difference]: Without dead ends: 17015 [2022-02-18 14:10:28,362 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 [2022-02-18 14:10:28,363 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1157 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-18 14:10:28,363 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] [2022-02-18 14:10:28,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2022-02-18 14:10:28,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 8304. [2022-02-18 14:10:28,522 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) [2022-02-18 14:10:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8304 states to 8304 states and 23458 transitions. [2022-02-18 14:10:28,539 INFO L78 Accepts]: Start accepts. Automaton has 8304 states and 23458 transitions. Word has length 223 [2022-02-18 14:10:28,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:28,539 INFO L470 AbstractCegarLoop]: Abstraction has 8304 states and 23458 transitions. [2022-02-18 14:10:28,539 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) [2022-02-18 14:10:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 8304 states and 23458 transitions. [2022-02-18 14:10:28,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:28,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:28,552 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:28,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-18 14:10:28,552 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:28,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:28,552 INFO L85 PathProgramCache]: Analyzing trace with hash -549753048, now seen corresponding path program 59 times [2022-02-18 14:10:28,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:28,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375821182] [2022-02-18 14:10:28,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:28,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:28,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:28,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375821182] [2022-02-18 14:10:28,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375821182] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:28,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:28,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:28,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324168290] [2022-02-18 14:10:28,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:28,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:28,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:28,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:28,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:28,832 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) [2022-02-18 14:10:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:29,587 INFO L93 Difference]: Finished difference Result 18643 states and 53681 transitions. [2022-02-18 14:10:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:29,588 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 [2022-02-18 14:10:29,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:29,624 INFO L225 Difference]: With dead ends: 18643 [2022-02-18 14:10:29,625 INFO L226 Difference]: Without dead ends: 18643 [2022-02-18 14:10:29,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2022-02-18 14:10:29,625 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 [2022-02-18 14:10:29,625 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] [2022-02-18 14:10:29,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18643 states. [2022-02-18 14:10:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18643 to 8264. [2022-02-18 14:10:29,795 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) [2022-02-18 14:10:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 23308 transitions. [2022-02-18 14:10:29,812 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 23308 transitions. Word has length 223 [2022-02-18 14:10:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:29,812 INFO L470 AbstractCegarLoop]: Abstraction has 8264 states and 23308 transitions. [2022-02-18 14:10:29,812 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) [2022-02-18 14:10:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 23308 transitions. [2022-02-18 14:10:29,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:29,824 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:29,824 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] [2022-02-18 14:10:29,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-18 14:10:29,824 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:29,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:29,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1356097652, now seen corresponding path program 60 times [2022-02-18 14:10:29,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:29,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554535957] [2022-02-18 14:10:29,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:29,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:30,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:30,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554535957] [2022-02-18 14:10:30,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554535957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:30,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:30,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:30,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877956960] [2022-02-18 14:10:30,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:30,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:30,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:30,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:30,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:30,122 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) [2022-02-18 14:10:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:30,752 INFO L93 Difference]: Finished difference Result 17336 states and 49761 transitions. [2022-02-18 14:10:30,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:30,752 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 [2022-02-18 14:10:30,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:30,785 INFO L225 Difference]: With dead ends: 17336 [2022-02-18 14:10:30,785 INFO L226 Difference]: Without dead ends: 17336 [2022-02-18 14:10:30,786 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 [2022-02-18 14:10:30,786 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1247 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-02-18 14:10:30,786 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] [2022-02-18 14:10:30,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17336 states. [2022-02-18 14:10:30,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17336 to 8272. [2022-02-18 14:10:30,952 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) [2022-02-18 14:10:30,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-02-18 14:10:30,970 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-02-18 14:10:30,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:30,970 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-02-18 14:10:30,970 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) [2022-02-18 14:10:30,970 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-02-18 14:10:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:30,982 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:30,982 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:30,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-18 14:10:30,982 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:30,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:30,982 INFO L85 PathProgramCache]: Analyzing trace with hash 971848084, now seen corresponding path program 61 times [2022-02-18 14:10:30,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:30,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247748432] [2022-02-18 14:10:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:30,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:31,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:31,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247748432] [2022-02-18 14:10:31,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247748432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:31,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:31,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:31,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003257192] [2022-02-18 14:10:31,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:31,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:31,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:31,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:31,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:31,247 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) [2022-02-18 14:10:31,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:31,812 INFO L93 Difference]: Finished difference Result 16036 states and 45923 transitions. [2022-02-18 14:10:31,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:31,813 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 [2022-02-18 14:10:31,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:31,843 INFO L225 Difference]: With dead ends: 16036 [2022-02-18 14:10:31,844 INFO L226 Difference]: Without dead ends: 16036 [2022-02-18 14:10:31,844 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 [2022-02-18 14:10:31,844 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 [2022-02-18 14:10:31,844 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] [2022-02-18 14:10:31,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-02-18 14:10:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 8276. [2022-02-18 14:10:31,997 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) [2022-02-18 14:10:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-02-18 14:10:32,014 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-02-18 14:10:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:32,014 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-02-18 14:10:32,014 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) [2022-02-18 14:10:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-02-18 14:10:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:32,057 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:32,057 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:32,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-18 14:10:32,057 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:32,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:32,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1931349772, now seen corresponding path program 62 times [2022-02-18 14:10:32,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:32,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19980744] [2022-02-18 14:10:32,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:32,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:32,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:32,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19980744] [2022-02-18 14:10:32,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19980744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:32,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:32,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:32,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740782549] [2022-02-18 14:10:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:32,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:32,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:32,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:32,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:32,325 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) [2022-02-18 14:10:32,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:32,848 INFO L93 Difference]: Finished difference Result 15776 states and 45227 transitions. [2022-02-18 14:10:32,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:32,849 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 [2022-02-18 14:10:32,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:32,875 INFO L225 Difference]: With dead ends: 15776 [2022-02-18 14:10:32,875 INFO L226 Difference]: Without dead ends: 15776 [2022-02-18 14:10:32,876 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 [2022-02-18 14:10:32,876 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 [2022-02-18 14:10:32,876 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] [2022-02-18 14:10:32,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2022-02-18 14:10:33,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 8268. [2022-02-18 14:10:33,014 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) [2022-02-18 14:10:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23319 transitions. [2022-02-18 14:10:33,030 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23319 transitions. Word has length 223 [2022-02-18 14:10:33,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:33,030 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23319 transitions. [2022-02-18 14:10:33,030 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) [2022-02-18 14:10:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23319 transitions. [2022-02-18 14:10:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:33,041 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:33,041 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] [2022-02-18 14:10:33,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-18 14:10:33,041 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:33,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1853110852, now seen corresponding path program 63 times [2022-02-18 14:10:33,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:33,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272933590] [2022-02-18 14:10:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:33,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:33,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:33,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272933590] [2022-02-18 14:10:33,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272933590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:33,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:33,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:33,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189443815] [2022-02-18 14:10:33,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:33,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:33,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:33,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:33,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:33,282 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) [2022-02-18 14:10:33,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:33,860 INFO L93 Difference]: Finished difference Result 16444 states and 47201 transitions. [2022-02-18 14:10:33,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:33,861 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 [2022-02-18 14:10:33,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:33,888 INFO L225 Difference]: With dead ends: 16444 [2022-02-18 14:10:33,889 INFO L226 Difference]: Without dead ends: 16444 [2022-02-18 14:10:33,889 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 [2022-02-18 14:10:33,889 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 [2022-02-18 14:10:33,889 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] [2022-02-18 14:10:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16444 states. [2022-02-18 14:10:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16444 to 8276. [2022-02-18 14:10:34,027 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) [2022-02-18 14:10:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-02-18 14:10:34,042 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-02-18 14:10:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:34,042 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-02-18 14:10:34,042 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) [2022-02-18 14:10:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-02-18 14:10:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:34,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:34,052 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:34,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-18 14:10:34,052 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:34,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1482354756, now seen corresponding path program 64 times [2022-02-18 14:10:34,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:34,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985595557] [2022-02-18 14:10:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:34,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:34,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:34,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985595557] [2022-02-18 14:10:34,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985595557] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:34,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:34,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:34,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970106794] [2022-02-18 14:10:34,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:34,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:34,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:34,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:34,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:34,302 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) [2022-02-18 14:10:34,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:34,882 INFO L93 Difference]: Finished difference Result 16268 states and 46748 transitions. [2022-02-18 14:10:34,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:34,882 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 [2022-02-18 14:10:34,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:34,916 INFO L225 Difference]: With dead ends: 16268 [2022-02-18 14:10:34,916 INFO L226 Difference]: Without dead ends: 16268 [2022-02-18 14:10:34,917 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 [2022-02-18 14:10:34,917 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 [2022-02-18 14:10:34,917 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] [2022-02-18 14:10:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16268 states. [2022-02-18 14:10:35,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16268 to 8272. [2022-02-18 14:10:35,094 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) [2022-02-18 14:10:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-02-18 14:10:35,111 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-02-18 14:10:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:35,111 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-02-18 14:10:35,111 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) [2022-02-18 14:10:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-02-18 14:10:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:35,123 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:35,123 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:35,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-18 14:10:35,123 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1116836782, now seen corresponding path program 65 times [2022-02-18 14:10:35,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:35,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44854847] [2022-02-18 14:10:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:35,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:35,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:35,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44854847] [2022-02-18 14:10:35,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44854847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:35,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:35,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:35,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948710565] [2022-02-18 14:10:35,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:35,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:35,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:35,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:35,419 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) [2022-02-18 14:10:36,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:36,080 INFO L93 Difference]: Finished difference Result 17452 states and 50128 transitions. [2022-02-18 14:10:36,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:36,081 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-18 14:10:36,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:36,113 INFO L225 Difference]: With dead ends: 17452 [2022-02-18 14:10:36,114 INFO L226 Difference]: Without dead ends: 17452 [2022-02-18 14:10:36,114 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 [2022-02-18 14:10:36,114 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 [2022-02-18 14:10:36,114 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] [2022-02-18 14:10:36,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17452 states. [2022-02-18 14:10:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17452 to 8228. [2022-02-18 14:10:36,266 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) [2022-02-18 14:10:36,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 23209 transitions. [2022-02-18 14:10:36,282 INFO L78 Accepts]: Start accepts. Automaton has 8228 states and 23209 transitions. Word has length 223 [2022-02-18 14:10:36,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:36,282 INFO L470 AbstractCegarLoop]: Abstraction has 8228 states and 23209 transitions. [2022-02-18 14:10:36,283 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) [2022-02-18 14:10:36,283 INFO L276 IsEmpty]: Start isEmpty. Operand 8228 states and 23209 transitions. [2022-02-18 14:10:36,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:36,293 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:36,293 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:36,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-18 14:10:36,294 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:36,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash -70816108, now seen corresponding path program 66 times [2022-02-18 14:10:36,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:36,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443158346] [2022-02-18 14:10:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:36,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:36,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:36,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443158346] [2022-02-18 14:10:36,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443158346] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:36,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:36,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:36,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609575345] [2022-02-18 14:10:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:36,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:36,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:36,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:36,520 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) [2022-02-18 14:10:37,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:37,300 INFO L93 Difference]: Finished difference Result 20532 states and 58718 transitions. [2022-02-18 14:10:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-18 14:10:37,300 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 [2022-02-18 14:10:37,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:37,337 INFO L225 Difference]: With dead ends: 20532 [2022-02-18 14:10:37,337 INFO L226 Difference]: Without dead ends: 20532 [2022-02-18 14:10:37,338 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 [2022-02-18 14:10:37,338 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 [2022-02-18 14:10:37,338 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] [2022-02-18 14:10:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20532 states. [2022-02-18 14:10:37,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20532 to 8268. [2022-02-18 14:10:37,508 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) [2022-02-18 14:10:37,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23359 transitions. [2022-02-18 14:10:37,524 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23359 transitions. Word has length 223 [2022-02-18 14:10:37,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:37,525 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23359 transitions. [2022-02-18 14:10:37,525 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) [2022-02-18 14:10:37,525 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23359 transitions. [2022-02-18 14:10:37,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:37,536 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:37,536 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:37,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-18 14:10:37,536 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:37,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2113189014, now seen corresponding path program 67 times [2022-02-18 14:10:37,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:37,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047879951] [2022-02-18 14:10:37,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:37,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:37,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:37,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047879951] [2022-02-18 14:10:37,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047879951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:37,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:37,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:37,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555644673] [2022-02-18 14:10:37,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:37,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:37,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:37,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:37,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:37,753 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) [2022-02-18 14:10:38,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:38,463 INFO L93 Difference]: Finished difference Result 15295 states and 43672 transitions. [2022-02-18 14:10:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:38,464 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 [2022-02-18 14:10:38,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:38,490 INFO L225 Difference]: With dead ends: 15295 [2022-02-18 14:10:38,490 INFO L226 Difference]: Without dead ends: 15295 [2022-02-18 14:10:38,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2022-02-18 14:10:38,491 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:38,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 3640 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:10:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15295 states. [2022-02-18 14:10:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15295 to 8276. [2022-02-18 14:10:38,627 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) [2022-02-18 14:10:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23393 transitions. [2022-02-18 14:10:38,643 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23393 transitions. Word has length 223 [2022-02-18 14:10:38,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:38,643 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23393 transitions. [2022-02-18 14:10:38,643 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) [2022-02-18 14:10:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23393 transitions. [2022-02-18 14:10:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:38,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:38,654 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:38,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-18 14:10:38,654 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:38,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1222276594, now seen corresponding path program 68 times [2022-02-18 14:10:38,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:38,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992033854] [2022-02-18 14:10:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:38,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:38,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992033854] [2022-02-18 14:10:38,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992033854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:38,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:38,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:38,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339292756] [2022-02-18 14:10:38,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:38,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:38,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:38,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:38,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:38,880 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) [2022-02-18 14:10:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:39,496 INFO L93 Difference]: Finished difference Result 15170 states and 43357 transitions. [2022-02-18 14:10:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:39,496 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 [2022-02-18 14:10:39,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:39,522 INFO L225 Difference]: With dead ends: 15170 [2022-02-18 14:10:39,522 INFO L226 Difference]: Without dead ends: 15170 [2022-02-18 14:10:39,522 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 [2022-02-18 14:10:39,522 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 [2022-02-18 14:10:39,522 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] [2022-02-18 14:10:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15170 states. [2022-02-18 14:10:39,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15170 to 8272. [2022-02-18 14:10:39,659 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) [2022-02-18 14:10:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23374 transitions. [2022-02-18 14:10:39,676 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23374 transitions. Word has length 223 [2022-02-18 14:10:39,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:39,676 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23374 transitions. [2022-02-18 14:10:39,676 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) [2022-02-18 14:10:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23374 transitions. [2022-02-18 14:10:39,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:39,687 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:39,687 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:39,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-18 14:10:39,688 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1376914944, now seen corresponding path program 69 times [2022-02-18 14:10:39,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:39,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753835448] [2022-02-18 14:10:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:39,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:39,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753835448] [2022-02-18 14:10:39,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753835448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:39,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:39,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:39,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365195964] [2022-02-18 14:10:39,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:39,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:39,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:39,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:39,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:39,903 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) [2022-02-18 14:10:40,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:40,573 INFO L93 Difference]: Finished difference Result 16810 states and 48151 transitions. [2022-02-18 14:10:40,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:40,573 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 [2022-02-18 14:10:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:40,601 INFO L225 Difference]: With dead ends: 16810 [2022-02-18 14:10:40,601 INFO L226 Difference]: Without dead ends: 16810 [2022-02-18 14:10:40,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2022-02-18 14:10:40,601 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:10:40,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 3548 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:10:40,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2022-02-18 14:10:40,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 8232. [2022-02-18 14:10:40,736 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) [2022-02-18 14:10:40,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8232 states to 8232 states and 23224 transitions. [2022-02-18 14:10:40,750 INFO L78 Accepts]: Start accepts. Automaton has 8232 states and 23224 transitions. Word has length 223 [2022-02-18 14:10:40,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:40,751 INFO L470 AbstractCegarLoop]: Abstraction has 8232 states and 23224 transitions. [2022-02-18 14:10:40,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:10:40,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8232 states and 23224 transitions. [2022-02-18 14:10:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-18 14:10:40,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:40,761 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:40,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-18 14:10:40,761 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:40,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:40,761 INFO L85 PathProgramCache]: Analyzing trace with hash -556140130, now seen corresponding path program 70 times [2022-02-18 14:10:40,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:40,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540565031] [2022-02-18 14:10:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:40,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:41,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:41,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540565031] [2022-02-18 14:10:41,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540565031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:41,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:41,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-18 14:10:41,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301263851] [2022-02-18 14:10:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:41,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:10:41,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:41,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:10:41,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:10:41,036 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) [2022-02-18 14:10:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:41,865 INFO L93 Difference]: Finished difference Result 21876 states and 62326 transitions. [2022-02-18 14:10:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-18 14:10:41,866 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 [2022-02-18 14:10:41,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:41,903 INFO L225 Difference]: With dead ends: 21876 [2022-02-18 14:10:41,903 INFO L226 Difference]: Without dead ends: 21876 [2022-02-18 14:10:41,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-02-18 14:10:41,903 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 [2022-02-18 14:10:41,903 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] [2022-02-18 14:10:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21876 states. [2022-02-18 14:10:42,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21876 to 8336. [2022-02-18 14:10:42,078 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) [2022-02-18 14:10:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 23522 transitions. [2022-02-18 14:10:42,093 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 23522 transitions. Word has length 223 [2022-02-18 14:10:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:42,094 INFO L470 AbstractCegarLoop]: Abstraction has 8336 states and 23522 transitions. [2022-02-18 14:10:42,094 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) [2022-02-18 14:10:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 23522 transitions. [2022-02-18 14:10:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:42,104 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:42,104 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:42,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-18 14:10:42,104 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:42,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1960384399, now seen corresponding path program 1 times [2022-02-18 14:10:42,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:42,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907374400] [2022-02-18 14:10:42,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:42,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:42,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:42,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907374400] [2022-02-18 14:10:42,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907374400] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:42,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:42,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:42,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752128113] [2022-02-18 14:10:42,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:42,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:42,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:42,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:42,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:42,216 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) [2022-02-18 14:10:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:42,487 INFO L93 Difference]: Finished difference Result 10171 states and 28081 transitions. [2022-02-18 14:10:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:10:42,487 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 [2022-02-18 14:10:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:42,503 INFO L225 Difference]: With dead ends: 10171 [2022-02-18 14:10:42,503 INFO L226 Difference]: Without dead ends: 10024 [2022-02-18 14:10:42,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:10:42,504 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 [2022-02-18 14:10:42,504 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] [2022-02-18 14:10:42,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2022-02-18 14:10:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 9870. [2022-02-18 14:10:42,605 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) [2022-02-18 14:10:42,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9870 states to 9870 states and 27413 transitions. [2022-02-18 14:10:42,623 INFO L78 Accepts]: Start accepts. Automaton has 9870 states and 27413 transitions. Word has length 227 [2022-02-18 14:10:42,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:42,623 INFO L470 AbstractCegarLoop]: Abstraction has 9870 states and 27413 transitions. [2022-02-18 14:10:42,624 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) [2022-02-18 14:10:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 9870 states and 27413 transitions. [2022-02-18 14:10:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:42,636 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:42,636 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:42,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-18 14:10:42,636 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:42,636 INFO L85 PathProgramCache]: Analyzing trace with hash 871663653, now seen corresponding path program 2 times [2022-02-18 14:10:42,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:42,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540968646] [2022-02-18 14:10:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:42,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:42,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:42,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540968646] [2022-02-18 14:10:42,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540968646] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:42,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:42,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:42,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542063373] [2022-02-18 14:10:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:42,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:42,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:42,766 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) [2022-02-18 14:10:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:43,074 INFO L93 Difference]: Finished difference Result 10195 states and 28097 transitions. [2022-02-18 14:10:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:10:43,075 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 [2022-02-18 14:10:43,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:43,090 INFO L225 Difference]: With dead ends: 10195 [2022-02-18 14:10:43,090 INFO L226 Difference]: Without dead ends: 9768 [2022-02-18 14:10:43,090 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 [2022-02-18 14:10:43,091 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 [2022-02-18 14:10:43,091 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] [2022-02-18 14:10:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2022-02-18 14:10:43,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9614. [2022-02-18 14:10:43,191 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) [2022-02-18 14:10:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9614 states to 9614 states and 26709 transitions. [2022-02-18 14:10:43,209 INFO L78 Accepts]: Start accepts. Automaton has 9614 states and 26709 transitions. Word has length 227 [2022-02-18 14:10:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:43,209 INFO L470 AbstractCegarLoop]: Abstraction has 9614 states and 26709 transitions. [2022-02-18 14:10:43,209 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) [2022-02-18 14:10:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9614 states and 26709 transitions. [2022-02-18 14:10:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:43,221 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:43,221 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:43,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-18 14:10:43,222 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:43,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1010368307, now seen corresponding path program 3 times [2022-02-18 14:10:43,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:43,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920904298] [2022-02-18 14:10:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:43,344 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:43,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:43,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920904298] [2022-02-18 14:10:43,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920904298] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:43,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:43,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:43,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655509359] [2022-02-18 14:10:43,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:43,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:43,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:43,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:43,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:43,345 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) [2022-02-18 14:10:43,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:43,641 INFO L93 Difference]: Finished difference Result 9885 states and 27294 transitions. [2022-02-18 14:10:43,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:10:43,641 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 [2022-02-18 14:10:43,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:43,656 INFO L225 Difference]: With dead ends: 9885 [2022-02-18 14:10:43,656 INFO L226 Difference]: Without dead ends: 9667 [2022-02-18 14:10:43,656 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 [2022-02-18 14:10:43,657 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 [2022-02-18 14:10:43,657 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] [2022-02-18 14:10:43,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-02-18 14:10:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 9582. [2022-02-18 14:10:43,756 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) [2022-02-18 14:10:43,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 26621 transitions. [2022-02-18 14:10:43,775 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 26621 transitions. Word has length 227 [2022-02-18 14:10:43,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:43,775 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 26621 transitions. [2022-02-18 14:10:43,775 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) [2022-02-18 14:10:43,775 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 26621 transitions. [2022-02-18 14:10:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:43,787 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:43,787 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:43,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-18 14:10:43,787 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:43,787 INFO L85 PathProgramCache]: Analyzing trace with hash -366274121, now seen corresponding path program 4 times [2022-02-18 14:10:43,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:43,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972860] [2022-02-18 14:10:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:43,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:43,892 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:43,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:43,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972860] [2022-02-18 14:10:43,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:43,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:43,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:43,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122431108] [2022-02-18 14:10:43,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:43,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:43,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:43,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:43,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:43,893 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) [2022-02-18 14:10:44,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:44,119 INFO L93 Difference]: Finished difference Result 9868 states and 27241 transitions. [2022-02-18 14:10:44,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:10:44,119 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 [2022-02-18 14:10:44,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:44,134 INFO L225 Difference]: With dead ends: 9868 [2022-02-18 14:10:44,134 INFO L226 Difference]: Without dead ends: 9635 [2022-02-18 14:10:44,134 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 [2022-02-18 14:10:44,135 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 [2022-02-18 14:10:44,135 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] [2022-02-18 14:10:44,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-02-18 14:10:44,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 9550. [2022-02-18 14:10:44,241 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) [2022-02-18 14:10:44,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 26533 transitions. [2022-02-18 14:10:44,258 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 26533 transitions. Word has length 227 [2022-02-18 14:10:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:44,258 INFO L470 AbstractCegarLoop]: Abstraction has 9550 states and 26533 transitions. [2022-02-18 14:10:44,258 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) [2022-02-18 14:10:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 26533 transitions. [2022-02-18 14:10:44,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:44,270 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:44,270 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:44,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-18 14:10:44,270 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:44,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:44,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1574838221, now seen corresponding path program 5 times [2022-02-18 14:10:44,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:44,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120959438] [2022-02-18 14:10:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:44,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:44,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:44,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120959438] [2022-02-18 14:10:44,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120959438] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:44,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:44,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:44,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317912373] [2022-02-18 14:10:44,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:44,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:44,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:44,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:44,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:44,388 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) [2022-02-18 14:10:44,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:44,660 INFO L93 Difference]: Finished difference Result 9701 states and 26838 transitions. [2022-02-18 14:10:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:44,660 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 [2022-02-18 14:10:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:44,675 INFO L225 Difference]: With dead ends: 9701 [2022-02-18 14:10:44,675 INFO L226 Difference]: Without dead ends: 9453 [2022-02-18 14:10:44,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:10:44,676 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 [2022-02-18 14:10:44,676 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] [2022-02-18 14:10:44,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9453 states. [2022-02-18 14:10:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9453 to 9368. [2022-02-18 14:10:44,774 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) [2022-02-18 14:10:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 26076 transitions. [2022-02-18 14:10:44,791 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 26076 transitions. Word has length 227 [2022-02-18 14:10:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:44,791 INFO L470 AbstractCegarLoop]: Abstraction has 9368 states and 26076 transitions. [2022-02-18 14:10:44,791 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) [2022-02-18 14:10:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 26076 transitions. [2022-02-18 14:10:44,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:44,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:44,803 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:44,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-18 14:10:44,804 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:44,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:44,804 INFO L85 PathProgramCache]: Analyzing trace with hash 802199471, now seen corresponding path program 1 times [2022-02-18 14:10:44,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:44,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188313540] [2022-02-18 14:10:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:44,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:44,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:44,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188313540] [2022-02-18 14:10:44,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188313540] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:44,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:44,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:10:44,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025871876] [2022-02-18 14:10:44,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:44,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:10:44,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:44,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:10:44,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:10:44,844 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) [2022-02-18 14:10:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:44,946 INFO L93 Difference]: Finished difference Result 14651 states and 40779 transitions. [2022-02-18 14:10:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:10:44,947 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 [2022-02-18 14:10:44,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:44,979 INFO L225 Difference]: With dead ends: 14651 [2022-02-18 14:10:44,980 INFO L226 Difference]: Without dead ends: 14651 [2022-02-18 14:10:44,980 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 [2022-02-18 14:10:44,980 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 [2022-02-18 14:10:44,980 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] [2022-02-18 14:10:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14651 states. [2022-02-18 14:10:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14651 to 11546. [2022-02-18 14:10:45,152 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) [2022-02-18 14:10:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11546 states to 11546 states and 32097 transitions. [2022-02-18 14:10:45,174 INFO L78 Accepts]: Start accepts. Automaton has 11546 states and 32097 transitions. Word has length 227 [2022-02-18 14:10:45,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:45,174 INFO L470 AbstractCegarLoop]: Abstraction has 11546 states and 32097 transitions. [2022-02-18 14:10:45,174 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) [2022-02-18 14:10:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 11546 states and 32097 transitions. [2022-02-18 14:10:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:45,188 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:45,188 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:45,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-18 14:10:45,188 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:45,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:45,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1326718921, now seen corresponding path program 6 times [2022-02-18 14:10:45,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:45,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482601509] [2022-02-18 14:10:45,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:45,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:45,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:45,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482601509] [2022-02-18 14:10:45,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482601509] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:45,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:45,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:45,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377782793] [2022-02-18 14:10:45,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:45,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:45,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:45,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:45,319 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) [2022-02-18 14:10:45,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:45,616 INFO L93 Difference]: Finished difference Result 12578 states and 34703 transitions. [2022-02-18 14:10:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:45,616 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 [2022-02-18 14:10:45,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:45,634 INFO L225 Difference]: With dead ends: 12578 [2022-02-18 14:10:45,634 INFO L226 Difference]: Without dead ends: 12431 [2022-02-18 14:10:45,635 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 [2022-02-18 14:10:45,635 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 [2022-02-18 14:10:45,635 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] [2022-02-18 14:10:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12431 states. [2022-02-18 14:10:45,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12431 to 12005. [2022-02-18 14:10:45,758 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) [2022-02-18 14:10:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12005 states to 12005 states and 33271 transitions. [2022-02-18 14:10:45,781 INFO L78 Accepts]: Start accepts. Automaton has 12005 states and 33271 transitions. Word has length 227 [2022-02-18 14:10:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:45,781 INFO L470 AbstractCegarLoop]: Abstraction has 12005 states and 33271 transitions. [2022-02-18 14:10:45,781 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) [2022-02-18 14:10:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 12005 states and 33271 transitions. [2022-02-18 14:10:45,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:45,796 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:45,796 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, 1, 1, 1, 1] [2022-02-18 14:10:45,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-18 14:10:45,796 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:45,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:45,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1879527629, now seen corresponding path program 7 times [2022-02-18 14:10:45,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:45,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880086542] [2022-02-18 14:10:45,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:45,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:45,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:45,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880086542] [2022-02-18 14:10:45,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880086542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:45,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:45,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:45,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536225698] [2022-02-18 14:10:45,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:45,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:45,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:45,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:45,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:45,920 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) [2022-02-18 14:10:46,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:46,297 INFO L93 Difference]: Finished difference Result 12602 states and 34719 transitions. [2022-02-18 14:10:46,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:10:46,297 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 [2022-02-18 14:10:46,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:46,316 INFO L225 Difference]: With dead ends: 12602 [2022-02-18 14:10:46,316 INFO L226 Difference]: Without dead ends: 12175 [2022-02-18 14:10:46,316 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 [2022-02-18 14:10:46,316 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 [2022-02-18 14:10:46,316 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] [2022-02-18 14:10:46,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12175 states. [2022-02-18 14:10:46,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12175 to 11749. [2022-02-18 14:10:46,445 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) [2022-02-18 14:10:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 32567 transitions. [2022-02-18 14:10:46,468 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 32567 transitions. Word has length 227 [2022-02-18 14:10:46,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:46,468 INFO L470 AbstractCegarLoop]: Abstraction has 11749 states and 32567 transitions. [2022-02-18 14:10:46,468 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) [2022-02-18 14:10:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 32567 transitions. [2022-02-18 14:10:46,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:46,483 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:46,483 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:46,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-18 14:10:46,483 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:46,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:46,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2504331, now seen corresponding path program 8 times [2022-02-18 14:10:46,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:46,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622528550] [2022-02-18 14:10:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:46,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:46,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:46,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622528550] [2022-02-18 14:10:46,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622528550] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:46,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:46,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:46,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844493431] [2022-02-18 14:10:46,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:46,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:46,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:46,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:46,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:46,595 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) [2022-02-18 14:10:46,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:46,847 INFO L93 Difference]: Finished difference Result 12292 states and 33916 transitions. [2022-02-18 14:10:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:10:46,848 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 [2022-02-18 14:10:46,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:46,868 INFO L225 Difference]: With dead ends: 12292 [2022-02-18 14:10:46,868 INFO L226 Difference]: Without dead ends: 12074 [2022-02-18 14:10:46,868 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 [2022-02-18 14:10:46,868 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 [2022-02-18 14:10:46,869 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] [2022-02-18 14:10:46,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12074 states. [2022-02-18 14:10:47,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12074 to 11717. [2022-02-18 14:10:47,037 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) [2022-02-18 14:10:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11717 states to 11717 states and 32479 transitions. [2022-02-18 14:10:47,060 INFO L78 Accepts]: Start accepts. Automaton has 11717 states and 32479 transitions. Word has length 227 [2022-02-18 14:10:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:47,061 INFO L470 AbstractCegarLoop]: Abstraction has 11717 states and 32479 transitions. [2022-02-18 14:10:47,061 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) [2022-02-18 14:10:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand 11717 states and 32479 transitions. [2022-02-18 14:10:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:47,076 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:47,076 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:47,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-18 14:10:47,076 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash -818213115, now seen corresponding path program 9 times [2022-02-18 14:10:47,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:47,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221654302] [2022-02-18 14:10:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:47,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:47,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221654302] [2022-02-18 14:10:47,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221654302] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:47,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:47,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:47,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334308415] [2022-02-18 14:10:47,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:47,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:47,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:47,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:47,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:47,182 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) [2022-02-18 14:10:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:47,398 INFO L93 Difference]: Finished difference Result 12140 states and 33548 transitions. [2022-02-18 14:10:47,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:47,398 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 [2022-02-18 14:10:47,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:47,419 INFO L225 Difference]: With dead ends: 12140 [2022-02-18 14:10:47,419 INFO L226 Difference]: Without dead ends: 11907 [2022-02-18 14:10:47,419 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 [2022-02-18 14:10:47,419 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 [2022-02-18 14:10:47,419 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] [2022-02-18 14:10:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11907 states. [2022-02-18 14:10:47,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11907 to 11550. [2022-02-18 14:10:47,587 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) [2022-02-18 14:10:47,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 32104 transitions. [2022-02-18 14:10:47,609 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 32104 transitions. Word has length 227 [2022-02-18 14:10:47,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:47,609 INFO L470 AbstractCegarLoop]: Abstraction has 11550 states and 32104 transitions. [2022-02-18 14:10:47,610 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) [2022-02-18 14:10:47,610 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 32104 transitions. [2022-02-18 14:10:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:47,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:47,624 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:47,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-18 14:10:47,624 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:47,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1387001287, now seen corresponding path program 10 times [2022-02-18 14:10:47,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:47,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913341994] [2022-02-18 14:10:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:47,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:47,729 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:47,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:47,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913341994] [2022-02-18 14:10:47,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913341994] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:47,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:47,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:47,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758141542] [2022-02-18 14:10:47,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:47,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:47,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:47,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:47,730 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) [2022-02-18 14:10:47,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:47,974 INFO L93 Difference]: Finished difference Result 12379 states and 34183 transitions. [2022-02-18 14:10:47,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:10:47,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-18 14:10:47,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:47,993 INFO L225 Difference]: With dead ends: 12379 [2022-02-18 14:10:47,993 INFO L226 Difference]: Without dead ends: 12232 [2022-02-18 14:10:47,993 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 [2022-02-18 14:10:47,994 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 [2022-02-18 14:10:47,994 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] [2022-02-18 14:10:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2022-02-18 14:10:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 11962. [2022-02-18 14:10:48,124 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) [2022-02-18 14:10:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 33155 transitions. [2022-02-18 14:10:48,148 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 33155 transitions. Word has length 227 [2022-02-18 14:10:48,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:48,148 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 33155 transitions. [2022-02-18 14:10:48,148 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) [2022-02-18 14:10:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 33155 transitions. [2022-02-18 14:10:48,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:48,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:48,164 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:48,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-18 14:10:48,164 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:48,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:48,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1819245263, now seen corresponding path program 11 times [2022-02-18 14:10:48,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:48,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603739805] [2022-02-18 14:10:48,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:48,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:48,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:48,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603739805] [2022-02-18 14:10:48,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603739805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:48,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:48,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:48,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531263040] [2022-02-18 14:10:48,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:48,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:48,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:48,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:48,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:48,289 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) [2022-02-18 14:10:48,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:48,564 INFO L93 Difference]: Finished difference Result 12403 states and 34199 transitions. [2022-02-18 14:10:48,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:10:48,564 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 [2022-02-18 14:10:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:48,582 INFO L225 Difference]: With dead ends: 12403 [2022-02-18 14:10:48,582 INFO L226 Difference]: Without dead ends: 11976 [2022-02-18 14:10:48,583 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 [2022-02-18 14:10:48,583 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 [2022-02-18 14:10:48,583 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] [2022-02-18 14:10:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11976 states. [2022-02-18 14:10:48,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11976 to 11706. [2022-02-18 14:10:48,714 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) [2022-02-18 14:10:48,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11706 states to 11706 states and 32451 transitions. [2022-02-18 14:10:48,736 INFO L78 Accepts]: Start accepts. Automaton has 11706 states and 32451 transitions. Word has length 227 [2022-02-18 14:10:48,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:48,736 INFO L470 AbstractCegarLoop]: Abstraction has 11706 states and 32451 transitions. [2022-02-18 14:10:48,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:10:48,737 INFO L276 IsEmpty]: Start isEmpty. Operand 11706 states and 32451 transitions. [2022-02-18 14:10:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:48,751 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:48,751 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:48,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-18 14:10:48,752 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:48,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:48,752 INFO L85 PathProgramCache]: Analyzing trace with hash -62786697, now seen corresponding path program 12 times [2022-02-18 14:10:48,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:48,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226825879] [2022-02-18 14:10:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:48,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:48,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:48,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226825879] [2022-02-18 14:10:48,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226825879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:48,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:48,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:48,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888384489] [2022-02-18 14:10:48,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:48,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:48,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:48,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:48,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:48,862 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) [2022-02-18 14:10:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:49,060 INFO L93 Difference]: Finished difference Result 11973 states and 33116 transitions. [2022-02-18 14:10:49,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 14:10:49,060 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 [2022-02-18 14:10:49,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:49,078 INFO L225 Difference]: With dead ends: 11973 [2022-02-18 14:10:49,078 INFO L226 Difference]: Without dead ends: 11755 [2022-02-18 14:10:49,078 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 [2022-02-18 14:10:49,078 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 [2022-02-18 14:10:49,079 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] [2022-02-18 14:10:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2022-02-18 14:10:49,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 11554. [2022-02-18 14:10:49,246 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) [2022-02-18 14:10:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11554 states to 11554 states and 32111 transitions. [2022-02-18 14:10:49,268 INFO L78 Accepts]: Start accepts. Automaton has 11554 states and 32111 transitions. Word has length 227 [2022-02-18 14:10:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:49,268 INFO L470 AbstractCegarLoop]: Abstraction has 11554 states and 32111 transitions. [2022-02-18 14:10:49,268 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) [2022-02-18 14:10:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 11554 states and 32111 transitions. [2022-02-18 14:10:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:49,283 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:49,283 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:49,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-18 14:10:49,283 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:49,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:49,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1786980807, now seen corresponding path program 13 times [2022-02-18 14:10:49,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:49,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259162528] [2022-02-18 14:10:49,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:49,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:49,427 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:49,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:49,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259162528] [2022-02-18 14:10:49,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259162528] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:49,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:49,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:49,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743510851] [2022-02-18 14:10:49,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:49,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:49,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:49,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:49,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:49,429 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) [2022-02-18 14:10:49,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:49,663 INFO L93 Difference]: Finished difference Result 12325 states and 33970 transitions. [2022-02-18 14:10:49,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:10:49,663 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 [2022-02-18 14:10:49,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:49,682 INFO L225 Difference]: With dead ends: 12325 [2022-02-18 14:10:49,683 INFO L226 Difference]: Without dead ends: 12178 [2022-02-18 14:10:49,683 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 [2022-02-18 14:10:49,683 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 [2022-02-18 14:10:49,683 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] [2022-02-18 14:10:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2022-02-18 14:10:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 11947. [2022-02-18 14:10:49,816 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) [2022-02-18 14:10:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11947 states to 11947 states and 33116 transitions. [2022-02-18 14:10:49,839 INFO L78 Accepts]: Start accepts. Automaton has 11947 states and 33116 transitions. Word has length 227 [2022-02-18 14:10:49,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:49,839 INFO L470 AbstractCegarLoop]: Abstraction has 11947 states and 33116 transitions. [2022-02-18 14:10:49,839 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) [2022-02-18 14:10:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 11947 states and 33116 transitions. [2022-02-18 14:10:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:49,854 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:49,855 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:49,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-18 14:10:49,855 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:49,855 INFO L85 PathProgramCache]: Analyzing trace with hash 698260061, now seen corresponding path program 14 times [2022-02-18 14:10:49,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:49,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605715240] [2022-02-18 14:10:49,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:49,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:49,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:49,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605715240] [2022-02-18 14:10:49,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605715240] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:49,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:49,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:49,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747881386] [2022-02-18 14:10:49,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:49,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:49,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:49,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:49,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:49,977 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) [2022-02-18 14:10:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:50,205 INFO L93 Difference]: Finished difference Result 12175 states and 33607 transitions. [2022-02-18 14:10:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:10:50,205 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 [2022-02-18 14:10:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:50,224 INFO L225 Difference]: With dead ends: 12175 [2022-02-18 14:10:50,224 INFO L226 Difference]: Without dead ends: 11748 [2022-02-18 14:10:50,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:10:50,224 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 [2022-02-18 14:10:50,224 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] [2022-02-18 14:10:50,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11748 states. [2022-02-18 14:10:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11748 to 11586. [2022-02-18 14:10:50,353 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) [2022-02-18 14:10:50,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 32167 transitions. [2022-02-18 14:10:50,376 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 32167 transitions. Word has length 227 [2022-02-18 14:10:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:50,376 INFO L470 AbstractCegarLoop]: Abstraction has 11586 states and 32167 transitions. [2022-02-18 14:10:50,376 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) [2022-02-18 14:10:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 32167 transitions. [2022-02-18 14:10:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:50,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:50,391 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:50,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-18 14:10:50,391 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:50,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:50,392 INFO L85 PathProgramCache]: Analyzing trace with hash 168555327, now seen corresponding path program 15 times [2022-02-18 14:10:50,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:50,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098137604] [2022-02-18 14:10:50,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:50,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:50,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:50,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098137604] [2022-02-18 14:10:50,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098137604] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:50,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:50,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:50,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035950825] [2022-02-18 14:10:50,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:50,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:50,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:50,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:50,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:50,495 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) [2022-02-18 14:10:50,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:50,672 INFO L93 Difference]: Finished difference Result 11745 states and 32524 transitions. [2022-02-18 14:10:50,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:50,672 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 [2022-02-18 14:10:50,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:50,690 INFO L225 Difference]: With dead ends: 11745 [2022-02-18 14:10:50,690 INFO L226 Difference]: Without dead ends: 11542 [2022-02-18 14:10:50,690 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 [2022-02-18 14:10:50,690 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 [2022-02-18 14:10:50,690 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] [2022-02-18 14:10:50,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11542 states. [2022-02-18 14:10:50,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11542 to 11542. [2022-02-18 14:10:50,816 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) [2022-02-18 14:10:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11542 states to 11542 states and 32082 transitions. [2022-02-18 14:10:50,838 INFO L78 Accepts]: Start accepts. Automaton has 11542 states and 32082 transitions. Word has length 227 [2022-02-18 14:10:50,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:50,838 INFO L470 AbstractCegarLoop]: Abstraction has 11542 states and 32082 transitions. [2022-02-18 14:10:50,838 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) [2022-02-18 14:10:50,838 INFO L276 IsEmpty]: Start isEmpty. Operand 11542 states and 32082 transitions. [2022-02-18 14:10:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:50,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:50,852 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] [2022-02-18 14:10:50,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-18 14:10:50,852 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:50,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2010123885, now seen corresponding path program 16 times [2022-02-18 14:10:50,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:50,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133879032] [2022-02-18 14:10:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:50,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:50,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:50,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133879032] [2022-02-18 14:10:50,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133879032] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:50,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:50,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:50,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94147016] [2022-02-18 14:10:50,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:50,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:50,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:50,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:50,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:50,962 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) [2022-02-18 14:10:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:51,214 INFO L93 Difference]: Finished difference Result 13860 states and 38299 transitions. [2022-02-18 14:10:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:10:51,215 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 [2022-02-18 14:10:51,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:51,237 INFO L225 Difference]: With dead ends: 13860 [2022-02-18 14:10:51,237 INFO L226 Difference]: Without dead ends: 13713 [2022-02-18 14:10:51,237 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 [2022-02-18 14:10:51,238 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 [2022-02-18 14:10:51,238 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] [2022-02-18 14:10:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13713 states. [2022-02-18 14:10:51,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13713 to 11950. [2022-02-18 14:10:51,420 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) [2022-02-18 14:10:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 33122 transitions. [2022-02-18 14:10:51,443 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 33122 transitions. Word has length 227 [2022-02-18 14:10:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:51,443 INFO L470 AbstractCegarLoop]: Abstraction has 11950 states and 33122 transitions. [2022-02-18 14:10:51,443 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) [2022-02-18 14:10:51,443 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 33122 transitions. [2022-02-18 14:10:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:51,457 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:51,457 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:51,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-18 14:10:51,458 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:51,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1196122665, now seen corresponding path program 17 times [2022-02-18 14:10:51,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:51,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098399976] [2022-02-18 14:10:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:51,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:51,556 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:51,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:51,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098399976] [2022-02-18 14:10:51,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098399976] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:51,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:51,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:51,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605792316] [2022-02-18 14:10:51,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:51,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:51,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:51,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:51,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:51,557 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) [2022-02-18 14:10:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:51,863 INFO L93 Difference]: Finished difference Result 13884 states and 38315 transitions. [2022-02-18 14:10:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:51,864 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 [2022-02-18 14:10:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:51,885 INFO L225 Difference]: With dead ends: 13884 [2022-02-18 14:10:51,885 INFO L226 Difference]: Without dead ends: 13457 [2022-02-18 14:10:51,886 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 [2022-02-18 14:10:51,886 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 [2022-02-18 14:10:51,886 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] [2022-02-18 14:10:51,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2022-02-18 14:10:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 11694. [2022-02-18 14:10:52,018 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) [2022-02-18 14:10:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11694 states to 11694 states and 32418 transitions. [2022-02-18 14:10:52,040 INFO L78 Accepts]: Start accepts. Automaton has 11694 states and 32418 transitions. Word has length 227 [2022-02-18 14:10:52,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:52,040 INFO L470 AbstractCegarLoop]: Abstraction has 11694 states and 32418 transitions. [2022-02-18 14:10:52,040 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) [2022-02-18 14:10:52,040 INFO L276 IsEmpty]: Start isEmpty. Operand 11694 states and 32418 transitions. [2022-02-18 14:10:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:52,054 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:52,054 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, 1, 1, 1, 1] [2022-02-18 14:10:52,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-18 14:10:52,054 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:52,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:52,055 INFO L85 PathProgramCache]: Analyzing trace with hash -685909295, now seen corresponding path program 18 times [2022-02-18 14:10:52,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:52,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023896662] [2022-02-18 14:10:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:52,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:52,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:52,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023896662] [2022-02-18 14:10:52,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023896662] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:52,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:52,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:52,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963683948] [2022-02-18 14:10:52,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:52,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:52,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:52,174 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) [2022-02-18 14:10:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:52,412 INFO L93 Difference]: Finished difference Result 13574 states and 37512 transitions. [2022-02-18 14:10:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:10:52,413 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 [2022-02-18 14:10:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:52,434 INFO L225 Difference]: With dead ends: 13574 [2022-02-18 14:10:52,434 INFO L226 Difference]: Without dead ends: 13356 [2022-02-18 14:10:52,434 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 [2022-02-18 14:10:52,435 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 [2022-02-18 14:10:52,435 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] [2022-02-18 14:10:52,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2022-02-18 14:10:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 11662. [2022-02-18 14:10:52,571 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) [2022-02-18 14:10:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11662 states to 11662 states and 32330 transitions. [2022-02-18 14:10:52,593 INFO L78 Accepts]: Start accepts. Automaton has 11662 states and 32330 transitions. Word has length 227 [2022-02-18 14:10:52,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:52,593 INFO L470 AbstractCegarLoop]: Abstraction has 11662 states and 32330 transitions. [2022-02-18 14:10:52,593 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) [2022-02-18 14:10:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand 11662 states and 32330 transitions. [2022-02-18 14:10:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:52,608 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:52,608 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:52,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-18 14:10:52,608 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:52,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1501618079, now seen corresponding path program 19 times [2022-02-18 14:10:52,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:52,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094155011] [2022-02-18 14:10:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:52,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:52,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:52,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094155011] [2022-02-18 14:10:52,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094155011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:52,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:52,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:52,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872136979] [2022-02-18 14:10:52,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:52,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:52,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:52,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:52,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:52,737 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) [2022-02-18 14:10:52,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:52,964 INFO L93 Difference]: Finished difference Result 13422 states and 37144 transitions. [2022-02-18 14:10:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:52,964 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 [2022-02-18 14:10:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:52,984 INFO L225 Difference]: With dead ends: 13422 [2022-02-18 14:10:52,984 INFO L226 Difference]: Without dead ends: 13189 [2022-02-18 14:10:52,985 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 [2022-02-18 14:10:52,985 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 [2022-02-18 14:10:52,985 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] [2022-02-18 14:10:52,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13189 states. [2022-02-18 14:10:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13189 to 11495. [2022-02-18 14:10:53,116 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) [2022-02-18 14:10:53,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11495 states to 11495 states and 31955 transitions. [2022-02-18 14:10:53,138 INFO L78 Accepts]: Start accepts. Automaton has 11495 states and 31955 transitions. Word has length 227 [2022-02-18 14:10:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:53,138 INFO L470 AbstractCegarLoop]: Abstraction has 11495 states and 31955 transitions. [2022-02-18 14:10:53,139 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) [2022-02-18 14:10:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 11495 states and 31955 transitions. [2022-02-18 14:10:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:53,195 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:53,195 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:53,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-18 14:10:53,196 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:53,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:53,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2070406251, now seen corresponding path program 20 times [2022-02-18 14:10:53,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:53,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724092532] [2022-02-18 14:10:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:53,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:53,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:53,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724092532] [2022-02-18 14:10:53,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724092532] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:53,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:53,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:53,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876582580] [2022-02-18 14:10:53,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:53,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:53,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:53,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:53,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:53,302 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) [2022-02-18 14:10:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:53,544 INFO L93 Difference]: Finished difference Result 13970 states and 38585 transitions. [2022-02-18 14:10:53,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:10:53,545 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 [2022-02-18 14:10:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:53,569 INFO L225 Difference]: With dead ends: 13970 [2022-02-18 14:10:53,569 INFO L226 Difference]: Without dead ends: 13823 [2022-02-18 14:10:53,569 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 [2022-02-18 14:10:53,570 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 [2022-02-18 14:10:53,570 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] [2022-02-18 14:10:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13823 states. [2022-02-18 14:10:53,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13823 to 11907. [2022-02-18 14:10:53,705 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) [2022-02-18 14:10:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11907 states to 11907 states and 33006 transitions. [2022-02-18 14:10:53,727 INFO L78 Accepts]: Start accepts. Automaton has 11907 states and 33006 transitions. Word has length 227 [2022-02-18 14:10:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:53,727 INFO L470 AbstractCegarLoop]: Abstraction has 11907 states and 33006 transitions. [2022-02-18 14:10:53,728 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) [2022-02-18 14:10:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 11907 states and 33006 transitions. [2022-02-18 14:10:53,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:53,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:53,746 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:53,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-18 14:10:53,746 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:53,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:53,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1135840299, now seen corresponding path program 21 times [2022-02-18 14:10:53,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:53,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079360647] [2022-02-18 14:10:53,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:53,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:53,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:53,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079360647] [2022-02-18 14:10:53,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079360647] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:53,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:53,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:53,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13607804] [2022-02-18 14:10:53,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:53,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:53,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:53,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:53,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:53,866 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) [2022-02-18 14:10:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:54,190 INFO L93 Difference]: Finished difference Result 13994 states and 38601 transitions. [2022-02-18 14:10:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:10:54,190 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 [2022-02-18 14:10:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:54,216 INFO L225 Difference]: With dead ends: 13994 [2022-02-18 14:10:54,216 INFO L226 Difference]: Without dead ends: 13567 [2022-02-18 14:10:54,216 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 [2022-02-18 14:10:54,217 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 [2022-02-18 14:10:54,217 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] [2022-02-18 14:10:54,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2022-02-18 14:10:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 11651. [2022-02-18 14:10:54,352 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) [2022-02-18 14:10:54,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 32302 transitions. [2022-02-18 14:10:54,374 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 32302 transitions. Word has length 227 [2022-02-18 14:10:54,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:54,374 INFO L470 AbstractCegarLoop]: Abstraction has 11651 states and 32302 transitions. [2022-02-18 14:10:54,374 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) [2022-02-18 14:10:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 32302 transitions. [2022-02-18 14:10:54,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:54,388 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:54,388 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] [2022-02-18 14:10:54,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-18 14:10:54,389 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:54,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:54,389 INFO L85 PathProgramCache]: Analyzing trace with hash -746191661, now seen corresponding path program 22 times [2022-02-18 14:10:54,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:54,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685845046] [2022-02-18 14:10:54,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:54,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:54,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:54,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685845046] [2022-02-18 14:10:54,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685845046] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:54,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:54,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:54,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551155470] [2022-02-18 14:10:54,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:54,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:54,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:54,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:54,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:54,492 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) [2022-02-18 14:10:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:54,727 INFO L93 Difference]: Finished difference Result 13564 states and 37518 transitions. [2022-02-18 14:10:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:54,727 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 [2022-02-18 14:10:54,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:54,748 INFO L225 Difference]: With dead ends: 13564 [2022-02-18 14:10:54,748 INFO L226 Difference]: Without dead ends: 13346 [2022-02-18 14:10:54,748 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 [2022-02-18 14:10:54,748 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 [2022-02-18 14:10:54,748 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] [2022-02-18 14:10:54,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13346 states. [2022-02-18 14:10:54,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13346 to 11499. [2022-02-18 14:10:54,876 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) [2022-02-18 14:10:54,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 31962 transitions. [2022-02-18 14:10:54,897 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 31962 transitions. Word has length 227 [2022-02-18 14:10:54,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:54,897 INFO L470 AbstractCegarLoop]: Abstraction has 11499 states and 31962 transitions. [2022-02-18 14:10:54,897 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) [2022-02-18 14:10:54,897 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 31962 transitions. [2022-02-18 14:10:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:54,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:54,911 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:54,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-18 14:10:54,911 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1103575843, now seen corresponding path program 23 times [2022-02-18 14:10:54,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:54,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896492376] [2022-02-18 14:10:54,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:54,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:55,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:55,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896492376] [2022-02-18 14:10:55,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896492376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:55,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:55,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:55,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758429855] [2022-02-18 14:10:55,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:55,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:55,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:55,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:55,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:55,029 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) [2022-02-18 14:10:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:55,412 INFO L93 Difference]: Finished difference Result 13964 states and 38504 transitions. [2022-02-18 14:10:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:10:55,413 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 [2022-02-18 14:10:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:55,432 INFO L225 Difference]: With dead ends: 13964 [2022-02-18 14:10:55,432 INFO L226 Difference]: Without dead ends: 13817 [2022-02-18 14:10:55,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:10:55,432 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 [2022-02-18 14:10:55,432 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] [2022-02-18 14:10:55,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13817 states. [2022-02-18 14:10:55,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13817 to 11892. [2022-02-18 14:10:55,551 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) [2022-02-18 14:10:55,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11892 states to 11892 states and 32967 transitions. [2022-02-18 14:10:55,573 INFO L78 Accepts]: Start accepts. Automaton has 11892 states and 32967 transitions. Word has length 227 [2022-02-18 14:10:55,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:55,573 INFO L470 AbstractCegarLoop]: Abstraction has 11892 states and 32967 transitions. [2022-02-18 14:10:55,574 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) [2022-02-18 14:10:55,574 INFO L276 IsEmpty]: Start isEmpty. Operand 11892 states and 32967 transitions. [2022-02-18 14:10:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:55,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:55,589 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, 1, 1, 1, 1] [2022-02-18 14:10:55,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-18 14:10:55,590 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:55,590 INFO L85 PathProgramCache]: Analyzing trace with hash 14855097, now seen corresponding path program 24 times [2022-02-18 14:10:55,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:55,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999290161] [2022-02-18 14:10:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:55,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:55,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999290161] [2022-02-18 14:10:55,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999290161] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:55,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:55,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:55,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432524952] [2022-02-18 14:10:55,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:55,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:55,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:55,691 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) [2022-02-18 14:10:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:55,973 INFO L93 Difference]: Finished difference Result 13814 states and 38141 transitions. [2022-02-18 14:10:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:10:55,973 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 [2022-02-18 14:10:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:55,994 INFO L225 Difference]: With dead ends: 13814 [2022-02-18 14:10:55,994 INFO L226 Difference]: Without dead ends: 13387 [2022-02-18 14:10:55,995 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 [2022-02-18 14:10:55,995 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 [2022-02-18 14:10:55,995 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] [2022-02-18 14:10:56,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13387 states. [2022-02-18 14:10:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13387 to 11531. [2022-02-18 14:10:56,132 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) [2022-02-18 14:10:56,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11531 states to 11531 states and 32018 transitions. [2022-02-18 14:10:56,156 INFO L78 Accepts]: Start accepts. Automaton has 11531 states and 32018 transitions. Word has length 227 [2022-02-18 14:10:56,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:56,156 INFO L470 AbstractCegarLoop]: Abstraction has 11531 states and 32018 transitions. [2022-02-18 14:10:56,156 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) [2022-02-18 14:10:56,156 INFO L276 IsEmpty]: Start isEmpty. Operand 11531 states and 32018 transitions. [2022-02-18 14:10:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:56,171 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:56,171 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:56,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-18 14:10:56,171 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:56,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:56,171 INFO L85 PathProgramCache]: Analyzing trace with hash -514849637, now seen corresponding path program 25 times [2022-02-18 14:10:56,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:56,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966293559] [2022-02-18 14:10:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:56,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:56,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:56,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966293559] [2022-02-18 14:10:56,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966293559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:56,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:56,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:56,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814689522] [2022-02-18 14:10:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:56,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:56,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:56,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:56,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:56,273 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) [2022-02-18 14:10:56,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:56,474 INFO L93 Difference]: Finished difference Result 13384 states and 37058 transitions. [2022-02-18 14:10:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:56,474 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 [2022-02-18 14:10:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:56,494 INFO L225 Difference]: With dead ends: 13384 [2022-02-18 14:10:56,494 INFO L226 Difference]: Without dead ends: 13185 [2022-02-18 14:10:56,494 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 [2022-02-18 14:10:56,495 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 [2022-02-18 14:10:56,495 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] [2022-02-18 14:10:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2022-02-18 14:10:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 11491. [2022-02-18 14:10:56,621 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) [2022-02-18 14:10:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11491 states to 11491 states and 31944 transitions. [2022-02-18 14:10:56,642 INFO L78 Accepts]: Start accepts. Automaton has 11491 states and 31944 transitions. Word has length 227 [2022-02-18 14:10:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:56,642 INFO L470 AbstractCegarLoop]: Abstraction has 11491 states and 31944 transitions. [2022-02-18 14:10:56,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:10:56,642 INFO L276 IsEmpty]: Start isEmpty. Operand 11491 states and 31944 transitions. [2022-02-18 14:10:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:56,656 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:56,656 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:56,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-18 14:10:56,657 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash 805446415, now seen corresponding path program 26 times [2022-02-18 14:10:56,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:56,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336171402] [2022-02-18 14:10:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:56,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:56,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:56,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336171402] [2022-02-18 14:10:56,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336171402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:56,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:56,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:56,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501596861] [2022-02-18 14:10:56,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:56,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:56,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:56,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:56,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:56,760 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) [2022-02-18 14:10:56,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:56,982 INFO L93 Difference]: Finished difference Result 13762 states and 38038 transitions. [2022-02-18 14:10:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:10:56,982 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 [2022-02-18 14:10:56,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:57,003 INFO L225 Difference]: With dead ends: 13762 [2022-02-18 14:10:57,004 INFO L226 Difference]: Without dead ends: 13615 [2022-02-18 14:10:57,004 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 [2022-02-18 14:10:57,004 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 [2022-02-18 14:10:57,004 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] [2022-02-18 14:10:57,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-02-18 14:10:57,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 12075. [2022-02-18 14:10:57,186 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) [2022-02-18 14:10:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 33484 transitions. [2022-02-18 14:10:57,208 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 33484 transitions. Word has length 227 [2022-02-18 14:10:57,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:57,209 INFO L470 AbstractCegarLoop]: Abstraction has 12075 states and 33484 transitions. [2022-02-18 14:10:57,209 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) [2022-02-18 14:10:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 33484 transitions. [2022-02-18 14:10:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:57,223 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:57,223 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:57,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-18 14:10:57,223 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:57,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:57,224 INFO L85 PathProgramCache]: Analyzing trace with hash -283274331, now seen corresponding path program 27 times [2022-02-18 14:10:57,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:57,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420104962] [2022-02-18 14:10:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:57,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:57,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:57,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420104962] [2022-02-18 14:10:57,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420104962] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:57,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:57,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:57,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150580666] [2022-02-18 14:10:57,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:57,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:57,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:57,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:57,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:57,320 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) [2022-02-18 14:10:57,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:57,627 INFO L93 Difference]: Finished difference Result 13786 states and 38054 transitions. [2022-02-18 14:10:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:10:57,627 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 [2022-02-18 14:10:57,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:57,649 INFO L225 Difference]: With dead ends: 13786 [2022-02-18 14:10:57,649 INFO L226 Difference]: Without dead ends: 13359 [2022-02-18 14:10:57,649 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 [2022-02-18 14:10:57,649 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 [2022-02-18 14:10:57,649 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] [2022-02-18 14:10:57,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13359 states. [2022-02-18 14:10:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13359 to 11819. [2022-02-18 14:10:57,794 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) [2022-02-18 14:10:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11819 states to 11819 states and 32780 transitions. [2022-02-18 14:10:57,817 INFO L78 Accepts]: Start accepts. Automaton has 11819 states and 32780 transitions. Word has length 227 [2022-02-18 14:10:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:57,817 INFO L470 AbstractCegarLoop]: Abstraction has 11819 states and 32780 transitions. [2022-02-18 14:10:57,817 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) [2022-02-18 14:10:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 11819 states and 32780 transitions. [2022-02-18 14:10:57,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:57,832 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:57,832 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:57,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-18 14:10:57,832 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:57,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2129661005, now seen corresponding path program 28 times [2022-02-18 14:10:57,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:57,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786305175] [2022-02-18 14:10:57,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:57,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:57,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:57,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786305175] [2022-02-18 14:10:57,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786305175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:57,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:57,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:57,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065477898] [2022-02-18 14:10:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:57,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:57,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:57,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:57,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:57,934 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) [2022-02-18 14:10:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:58,167 INFO L93 Difference]: Finished difference Result 13356 states and 36971 transitions. [2022-02-18 14:10:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:58,167 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 [2022-02-18 14:10:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:58,187 INFO L225 Difference]: With dead ends: 13356 [2022-02-18 14:10:58,187 INFO L226 Difference]: Without dead ends: 13138 [2022-02-18 14:10:58,188 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 [2022-02-18 14:10:58,188 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 [2022-02-18 14:10:58,188 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] [2022-02-18 14:10:58,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13138 states. [2022-02-18 14:10:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13138 to 11667. [2022-02-18 14:10:58,315 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) [2022-02-18 14:10:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11667 states to 11667 states and 32440 transitions. [2022-02-18 14:10:58,337 INFO L78 Accepts]: Start accepts. Automaton has 11667 states and 32440 transitions. Word has length 227 [2022-02-18 14:10:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:58,338 INFO L470 AbstractCegarLoop]: Abstraction has 11667 states and 32440 transitions. [2022-02-18 14:10:58,338 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) [2022-02-18 14:10:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 11667 states and 32440 transitions. [2022-02-18 14:10:58,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:58,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:58,354 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] [2022-02-18 14:10:58,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-18 14:10:58,354 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:58,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:58,354 INFO L85 PathProgramCache]: Analyzing trace with hash -315538787, now seen corresponding path program 29 times [2022-02-18 14:10:58,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:58,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372118474] [2022-02-18 14:10:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:58,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:58,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372118474] [2022-02-18 14:10:58,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372118474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:58,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:58,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:58,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914820434] [2022-02-18 14:10:58,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:58,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:58,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:58,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:58,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:58,458 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) [2022-02-18 14:10:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:58,729 INFO L93 Difference]: Finished difference Result 13909 states and 38359 transitions. [2022-02-18 14:10:58,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:10:58,730 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 [2022-02-18 14:10:58,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:58,750 INFO L225 Difference]: With dead ends: 13909 [2022-02-18 14:10:58,750 INFO L226 Difference]: Without dead ends: 13762 [2022-02-18 14:10:58,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:10:58,751 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 [2022-02-18 14:10:58,751 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] [2022-02-18 14:10:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13762 states. [2022-02-18 14:10:58,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13762 to 12060. [2022-02-18 14:10:58,881 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) [2022-02-18 14:10:58,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12060 states to 12060 states and 33445 transitions. [2022-02-18 14:10:58,903 INFO L78 Accepts]: Start accepts. Automaton has 12060 states and 33445 transitions. Word has length 227 [2022-02-18 14:10:58,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:58,903 INFO L470 AbstractCegarLoop]: Abstraction has 12060 states and 33445 transitions. [2022-02-18 14:10:58,904 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) [2022-02-18 14:10:58,904 INFO L276 IsEmpty]: Start isEmpty. Operand 12060 states and 33445 transitions. [2022-02-18 14:10:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:58,959 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:58,959 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:10:58,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-02-18 14:10:58,960 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:58,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:58,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1404259533, now seen corresponding path program 30 times [2022-02-18 14:10:58,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:58,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620793891] [2022-02-18 14:10:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:58,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:59,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:59,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620793891] [2022-02-18 14:10:59,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620793891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:59,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:59,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:59,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785259562] [2022-02-18 14:10:59,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:59,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:59,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:59,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:59,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:59,056 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) [2022-02-18 14:10:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:59,346 INFO L93 Difference]: Finished difference Result 13759 states and 37996 transitions. [2022-02-18 14:10:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:10:59,347 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 [2022-02-18 14:10:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:59,367 INFO L225 Difference]: With dead ends: 13759 [2022-02-18 14:10:59,367 INFO L226 Difference]: Without dead ends: 13332 [2022-02-18 14:10:59,367 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 [2022-02-18 14:10:59,368 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 [2022-02-18 14:10:59,368 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] [2022-02-18 14:10:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2022-02-18 14:10:59,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 11699. [2022-02-18 14:10:59,495 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) [2022-02-18 14:10:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32496 transitions. [2022-02-18 14:10:59,517 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32496 transitions. Word has length 227 [2022-02-18 14:10:59,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:10:59,517 INFO L470 AbstractCegarLoop]: Abstraction has 11699 states and 32496 transitions. [2022-02-18 14:10:59,517 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) [2022-02-18 14:10:59,517 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32496 transitions. [2022-02-18 14:10:59,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:10:59,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:10:59,531 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, 1, 1, 1, 1] [2022-02-18 14:10:59,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-02-18 14:10:59,532 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:10:59,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:10:59,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1933964267, now seen corresponding path program 31 times [2022-02-18 14:10:59,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:10:59,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942540892] [2022-02-18 14:10:59,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:10:59,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:10:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:10:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:10:59,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:10:59,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942540892] [2022-02-18 14:10:59,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942540892] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:10:59,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:10:59,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:10:59,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449393561] [2022-02-18 14:10:59,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:10:59,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:10:59,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:10:59,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:10:59,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:10:59,635 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) [2022-02-18 14:10:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:10:59,833 INFO L93 Difference]: Finished difference Result 13329 states and 36913 transitions. [2022-02-18 14:10:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:10:59,833 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 [2022-02-18 14:10:59,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:10:59,853 INFO L225 Difference]: With dead ends: 13329 [2022-02-18 14:10:59,853 INFO L226 Difference]: Without dead ends: 13134 [2022-02-18 14:10:59,853 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 [2022-02-18 14:10:59,854 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 [2022-02-18 14:10:59,854 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] [2022-02-18 14:10:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2022-02-18 14:10:59,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 11663. [2022-02-18 14:10:59,983 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) [2022-02-18 14:11:00,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 32429 transitions. [2022-02-18 14:11:00,006 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 32429 transitions. Word has length 227 [2022-02-18 14:11:00,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:00,006 INFO L470 AbstractCegarLoop]: Abstraction has 11663 states and 32429 transitions. [2022-02-18 14:11:00,006 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) [2022-02-18 14:11:00,006 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 32429 transitions. [2022-02-18 14:11:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:00,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:00,022 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, 1, 1, 1, 1] [2022-02-18 14:11:00,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-02-18 14:11:00,022 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:00,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:00,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1079264617, now seen corresponding path program 32 times [2022-02-18 14:11:00,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:00,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942141466] [2022-02-18 14:11:00,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:00,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:00,118 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:00,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:00,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942141466] [2022-02-18 14:11:00,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942141466] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:00,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:00,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:00,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42482035] [2022-02-18 14:11:00,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:00,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:00,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:00,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:00,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:00,119 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) [2022-02-18 14:11:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:00,379 INFO L93 Difference]: Finished difference Result 14563 states and 40037 transitions. [2022-02-18 14:11:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:11:00,380 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 [2022-02-18 14:11:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:00,402 INFO L225 Difference]: With dead ends: 14563 [2022-02-18 14:11:00,402 INFO L226 Difference]: Without dead ends: 14416 [2022-02-18 14:11:00,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-02-18 14:11:00,403 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 [2022-02-18 14:11:00,403 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] [2022-02-18 14:11:00,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14416 states. [2022-02-18 14:11:00,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14416 to 13479. [2022-02-18 14:11:00,558 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) [2022-02-18 14:11:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13479 states to 13479 states and 37469 transitions. [2022-02-18 14:11:00,584 INFO L78 Accepts]: Start accepts. Automaton has 13479 states and 37469 transitions. Word has length 227 [2022-02-18 14:11:00,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:00,584 INFO L470 AbstractCegarLoop]: Abstraction has 13479 states and 37469 transitions. [2022-02-18 14:11:00,585 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) [2022-02-18 14:11:00,585 INFO L276 IsEmpty]: Start isEmpty. Operand 13479 states and 37469 transitions. [2022-02-18 14:11:00,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:00,603 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:00,603 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:00,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-02-18 14:11:00,603 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:00,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:00,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2126981933, now seen corresponding path program 33 times [2022-02-18 14:11:00,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:00,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543183387] [2022-02-18 14:11:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:00,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:00,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:00,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543183387] [2022-02-18 14:11:00,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543183387] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:00,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:00,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:00,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020901259] [2022-02-18 14:11:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:00,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:00,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:00,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:00,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:00,696 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) [2022-02-18 14:11:01,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:01,035 INFO L93 Difference]: Finished difference Result 14413 states and 39674 transitions. [2022-02-18 14:11:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-18 14:11:01,036 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 [2022-02-18 14:11:01,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:01,057 INFO L225 Difference]: With dead ends: 14413 [2022-02-18 14:11:01,057 INFO L226 Difference]: Without dead ends: 13986 [2022-02-18 14:11:01,057 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 [2022-02-18 14:11:01,057 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 [2022-02-18 14:11:01,058 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] [2022-02-18 14:11:01,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-02-18 14:11:01,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 13223. [2022-02-18 14:11:01,202 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) [2022-02-18 14:11:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13223 states to 13223 states and 36765 transitions. [2022-02-18 14:11:01,230 INFO L78 Accepts]: Start accepts. Automaton has 13223 states and 36765 transitions. Word has length 227 [2022-02-18 14:11:01,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:01,230 INFO L470 AbstractCegarLoop]: Abstraction has 13223 states and 36765 transitions. [2022-02-18 14:11:01,230 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) [2022-02-18 14:11:01,230 INFO L276 IsEmpty]: Start isEmpty. Operand 13223 states and 36765 transitions. [2022-02-18 14:11:01,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:01,248 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:01,248 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] [2022-02-18 14:11:01,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-02-18 14:11:01,249 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:01,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1597277199, now seen corresponding path program 34 times [2022-02-18 14:11:01,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:01,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401771702] [2022-02-18 14:11:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:01,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:01,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:01,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401771702] [2022-02-18 14:11:01,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401771702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:01,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:01,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:01,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835923132] [2022-02-18 14:11:01,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:01,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:01,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:01,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:01,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:01,342 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) [2022-02-18 14:11:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:01,572 INFO L93 Difference]: Finished difference Result 14079 states and 38823 transitions. [2022-02-18 14:11:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:11:01,572 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 [2022-02-18 14:11:01,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:01,596 INFO L225 Difference]: With dead ends: 14079 [2022-02-18 14:11:01,596 INFO L226 Difference]: Without dead ends: 13888 [2022-02-18 14:11:01,597 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 [2022-02-18 14:11:01,597 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 [2022-02-18 14:11:01,597 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] [2022-02-18 14:11:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-02-18 14:11:01,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13191. [2022-02-18 14:11:01,757 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) [2022-02-18 14:11:01,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 36677 transitions. [2022-02-18 14:11:01,785 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 36677 transitions. Word has length 227 [2022-02-18 14:11:01,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:01,785 INFO L470 AbstractCegarLoop]: Abstraction has 13191 states and 36677 transitions. [2022-02-18 14:11:01,785 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) [2022-02-18 14:11:01,785 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 36677 transitions. [2022-02-18 14:11:01,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:01,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:01,804 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] [2022-02-18 14:11:01,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-02-18 14:11:01,804 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:01,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1182713145, now seen corresponding path program 35 times [2022-02-18 14:11:01,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:01,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507248196] [2022-02-18 14:11:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:01,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:01,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507248196] [2022-02-18 14:11:01,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507248196] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:01,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:01,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:01,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33757817] [2022-02-18 14:11:01,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:01,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:01,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:01,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:01,895 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) [2022-02-18 14:11:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:02,087 INFO L93 Difference]: Finished difference Result 13951 states and 38503 transitions. [2022-02-18 14:11:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:02,087 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 [2022-02-18 14:11:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:02,109 INFO L225 Difference]: With dead ends: 13951 [2022-02-18 14:11:02,109 INFO L226 Difference]: Without dead ends: 13736 [2022-02-18 14:11:02,110 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 [2022-02-18 14:11:02,110 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 363 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-18 14:11:02,110 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] [2022-02-18 14:11:02,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-02-18 14:11:02,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 12979. [2022-02-18 14:11:02,262 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) [2022-02-18 14:11:02,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 36006 transitions. [2022-02-18 14:11:02,288 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 36006 transitions. Word has length 227 [2022-02-18 14:11:02,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:02,288 INFO L470 AbstractCegarLoop]: Abstraction has 12979 states and 36006 transitions. [2022-02-18 14:11:02,288 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) [2022-02-18 14:11:02,288 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 36006 transitions. [2022-02-18 14:11:02,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:02,305 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:02,306 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:02,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-02-18 14:11:02,306 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:02,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:02,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1918630919, now seen corresponding path program 1 times [2022-02-18 14:11:02,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:02,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237337306] [2022-02-18 14:11:02,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:02,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:02,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:02,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237337306] [2022-02-18 14:11:02,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237337306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:02,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:02,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:02,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990417281] [2022-02-18 14:11:02,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:02,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:02,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:02,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:02,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:02,436 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) [2022-02-18 14:11:02,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:02,828 INFO L93 Difference]: Finished difference Result 16694 states and 45764 transitions. [2022-02-18 14:11:02,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-18 14:11:02,829 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 [2022-02-18 14:11:02,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:02,851 INFO L225 Difference]: With dead ends: 16694 [2022-02-18 14:11:02,851 INFO L226 Difference]: Without dead ends: 16547 [2022-02-18 14:11:02,852 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 [2022-02-18 14:11:02,852 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 [2022-02-18 14:11:02,852 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] [2022-02-18 14:11:02,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16547 states. [2022-02-18 14:11:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16547 to 15795. [2022-02-18 14:11:03,033 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) [2022-02-18 14:11:03,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 43636 transitions. [2022-02-18 14:11:03,064 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 43636 transitions. Word has length 227 [2022-02-18 14:11:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:03,065 INFO L470 AbstractCegarLoop]: Abstraction has 15795 states and 43636 transitions. [2022-02-18 14:11:03,065 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) [2022-02-18 14:11:03,065 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 43636 transitions. [2022-02-18 14:11:03,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:03,086 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:03,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:03,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-02-18 14:11:03,086 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:03,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:03,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1287615631, now seen corresponding path program 2 times [2022-02-18 14:11:03,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:03,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741953995] [2022-02-18 14:11:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:03,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:03,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:03,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741953995] [2022-02-18 14:11:03,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741953995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:03,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:03,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:03,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958949944] [2022-02-18 14:11:03,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:03,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:03,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:03,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:03,187 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) [2022-02-18 14:11:03,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:03,510 INFO L93 Difference]: Finished difference Result 16558 states and 45380 transitions. [2022-02-18 14:11:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:11:03,511 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-18 14:11:03,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:03,537 INFO L225 Difference]: With dead ends: 16558 [2022-02-18 14:11:03,537 INFO L226 Difference]: Without dead ends: 16131 [2022-02-18 14:11:03,537 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 [2022-02-18 14:11:03,537 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 [2022-02-18 14:11:03,537 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] [2022-02-18 14:11:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2022-02-18 14:11:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 15539. [2022-02-18 14:11:03,727 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) [2022-02-18 14:11:03,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 42932 transitions. [2022-02-18 14:11:03,759 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 42932 transitions. Word has length 227 [2022-02-18 14:11:03,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:03,760 INFO L470 AbstractCegarLoop]: Abstraction has 15539 states and 42932 transitions. [2022-02-18 14:11:03,760 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) [2022-02-18 14:11:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 42932 transitions. [2022-02-18 14:11:03,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:03,780 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:03,780 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:03,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-02-18 14:11:03,780 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:03,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:03,781 INFO L85 PathProgramCache]: Analyzing trace with hash -594416329, now seen corresponding path program 3 times [2022-02-18 14:11:03,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:03,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056435383] [2022-02-18 14:11:03,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:03,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:03,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:03,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056435383] [2022-02-18 14:11:03,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056435383] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:03,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:03,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:03,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202532184] [2022-02-18 14:11:03,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:03,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:03,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:03,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:03,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:03,894 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) [2022-02-18 14:11:04,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:04,138 INFO L93 Difference]: Finished difference Result 16188 states and 44437 transitions. [2022-02-18 14:11:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:11:04,138 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 [2022-02-18 14:11:04,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:04,163 INFO L225 Difference]: With dead ends: 16188 [2022-02-18 14:11:04,164 INFO L226 Difference]: Without dead ends: 15970 [2022-02-18 14:11:04,164 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 [2022-02-18 14:11:04,164 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 [2022-02-18 14:11:04,164 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] [2022-02-18 14:11:04,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2022-02-18 14:11:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15507. [2022-02-18 14:11:04,350 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) [2022-02-18 14:11:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15507 states to 15507 states and 42844 transitions. [2022-02-18 14:11:04,491 INFO L78 Accepts]: Start accepts. Automaton has 15507 states and 42844 transitions. Word has length 227 [2022-02-18 14:11:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:04,491 INFO L470 AbstractCegarLoop]: Abstraction has 15507 states and 42844 transitions. [2022-02-18 14:11:04,491 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) [2022-02-18 14:11:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 15507 states and 42844 transitions. [2022-02-18 14:11:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:04,509 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:04,509 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:04,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-02-18 14:11:04,509 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash -927845791, now seen corresponding path program 4 times [2022-02-18 14:11:04,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:04,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994450664] [2022-02-18 14:11:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:04,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:04,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:04,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994450664] [2022-02-18 14:11:04,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994450664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:04,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:04,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:04,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550389590] [2022-02-18 14:11:04,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:04,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:04,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:04,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:04,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:04,614 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) [2022-02-18 14:11:04,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:04,812 INFO L93 Difference]: Finished difference Result 16096 states and 44209 transitions. [2022-02-18 14:11:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:04,813 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 [2022-02-18 14:11:04,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:04,837 INFO L225 Difference]: With dead ends: 16096 [2022-02-18 14:11:04,837 INFO L226 Difference]: Without dead ends: 15863 [2022-02-18 14:11:04,837 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 [2022-02-18 14:11:04,837 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 [2022-02-18 14:11:04,837 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] [2022-02-18 14:11:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15863 states. [2022-02-18 14:11:04,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15863 to 15460. [2022-02-18 14:11:05,018 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) [2022-02-18 14:11:05,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42702 transitions. [2022-02-18 14:11:05,050 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42702 transitions. Word has length 227 [2022-02-18 14:11:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:05,050 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42702 transitions. [2022-02-18 14:11:05,050 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) [2022-02-18 14:11:05,050 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42702 transitions. [2022-02-18 14:11:05,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:05,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:05,071 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:05,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-02-18 14:11:05,071 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:05,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:05,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1157381049, now seen corresponding path program 5 times [2022-02-18 14:11:05,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:05,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324717761] [2022-02-18 14:11:05,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:05,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:05,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:05,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324717761] [2022-02-18 14:11:05,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324717761] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:05,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:05,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:05,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818975750] [2022-02-18 14:11:05,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:05,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:05,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:05,200 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) [2022-02-18 14:11:05,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:05,580 INFO L93 Difference]: Finished difference Result 16353 states and 44929 transitions. [2022-02-18 14:11:05,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:11:05,581 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 [2022-02-18 14:11:05,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:05,606 INFO L225 Difference]: With dead ends: 16353 [2022-02-18 14:11:05,607 INFO L226 Difference]: Without dead ends: 16206 [2022-02-18 14:11:05,607 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 [2022-02-18 14:11:05,607 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 [2022-02-18 14:11:05,607 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] [2022-02-18 14:11:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16206 states. [2022-02-18 14:11:05,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16206 to 15752. [2022-02-18 14:11:05,788 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) [2022-02-18 14:11:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43473 transitions. [2022-02-18 14:11:05,819 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43473 transitions. Word has length 227 [2022-02-18 14:11:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:05,819 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43473 transitions. [2022-02-18 14:11:05,819 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) [2022-02-18 14:11:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43473 transitions. [2022-02-18 14:11:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:05,840 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:05,840 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:05,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-02-18 14:11:05,840 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:05,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:05,840 INFO L85 PathProgramCache]: Analyzing trace with hash 68660303, now seen corresponding path program 6 times [2022-02-18 14:11:05,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:05,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258981625] [2022-02-18 14:11:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:05,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:05,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:05,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258981625] [2022-02-18 14:11:05,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258981625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:05,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:05,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:05,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395125666] [2022-02-18 14:11:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:05,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:05,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:05,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:05,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:05,970 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) [2022-02-18 14:11:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:06,350 INFO L93 Difference]: Finished difference Result 16377 states and 44945 transitions. [2022-02-18 14:11:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:11:06,351 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 [2022-02-18 14:11:06,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:06,377 INFO L225 Difference]: With dead ends: 16377 [2022-02-18 14:11:06,377 INFO L226 Difference]: Without dead ends: 15950 [2022-02-18 14:11:06,377 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 [2022-02-18 14:11:06,377 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 [2022-02-18 14:11:06,377 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] [2022-02-18 14:11:06,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15950 states. [2022-02-18 14:11:06,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15950 to 15496. [2022-02-18 14:11:06,606 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) [2022-02-18 14:11:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42769 transitions. [2022-02-18 14:11:06,636 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42769 transitions. Word has length 227 [2022-02-18 14:11:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:06,637 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42769 transitions. [2022-02-18 14:11:06,637 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) [2022-02-18 14:11:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42769 transitions. [2022-02-18 14:11:06,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:06,657 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:06,657 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] [2022-02-18 14:11:06,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-02-18 14:11:06,657 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:06,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:06,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1813371657, now seen corresponding path program 7 times [2022-02-18 14:11:06,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:06,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050642563] [2022-02-18 14:11:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:06,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:06,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:06,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050642563] [2022-02-18 14:11:06,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050642563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:06,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:06,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:06,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825175488] [2022-02-18 14:11:06,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:06,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:06,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:06,756 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) [2022-02-18 14:11:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:06,992 INFO L93 Difference]: Finished difference Result 15947 states and 43862 transitions. [2022-02-18 14:11:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:06,992 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 [2022-02-18 14:11:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:07,018 INFO L225 Difference]: With dead ends: 15947 [2022-02-18 14:11:07,018 INFO L226 Difference]: Without dead ends: 15729 [2022-02-18 14:11:07,018 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 [2022-02-18 14:11:07,018 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 [2022-02-18 14:11:07,018 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] [2022-02-18 14:11:07,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15729 states. [2022-02-18 14:11:07,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15729 to 15464. [2022-02-18 14:11:07,193 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) [2022-02-18 14:11:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42709 transitions. [2022-02-18 14:11:07,224 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42709 transitions. Word has length 227 [2022-02-18 14:11:07,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:07,224 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42709 transitions. [2022-02-18 14:11:07,224 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) [2022-02-18 14:11:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42709 transitions. [2022-02-18 14:11:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:07,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:07,244 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] [2022-02-18 14:11:07,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-02-18 14:11:07,245 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:07,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:07,245 INFO L85 PathProgramCache]: Analyzing trace with hash 36395847, now seen corresponding path program 8 times [2022-02-18 14:11:07,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:07,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9142010] [2022-02-18 14:11:07,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:07,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:07,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:07,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9142010] [2022-02-18 14:11:07,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9142010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:07,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:07,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:07,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658570317] [2022-02-18 14:11:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:07,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:07,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:07,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:07,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:07,345 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) [2022-02-18 14:11:07,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:07,641 INFO L93 Difference]: Finished difference Result 16347 states and 44848 transitions. [2022-02-18 14:11:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:11:07,641 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 [2022-02-18 14:11:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:07,668 INFO L225 Difference]: With dead ends: 16347 [2022-02-18 14:11:07,668 INFO L226 Difference]: Without dead ends: 16200 [2022-02-18 14:11:07,669 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 [2022-02-18 14:11:07,669 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 [2022-02-18 14:11:07,669 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] [2022-02-18 14:11:07,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16200 states. [2022-02-18 14:11:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16200 to 15752. [2022-02-18 14:11:07,858 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) [2022-02-18 14:11:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-02-18 14:11:07,892 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-02-18 14:11:07,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:07,892 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-02-18 14:11:07,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:11:07,892 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-02-18 14:11:07,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:07,913 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:07,913 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:07,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-02-18 14:11:07,913 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:07,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:07,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1052324899, now seen corresponding path program 9 times [2022-02-18 14:11:07,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:07,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616284059] [2022-02-18 14:11:07,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:07,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:08,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:08,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616284059] [2022-02-18 14:11:08,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616284059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:08,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:08,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:08,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457349706] [2022-02-18 14:11:08,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:08,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:08,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:08,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:08,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:08,063 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) [2022-02-18 14:11:08,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:08,336 INFO L93 Difference]: Finished difference Result 16197 states and 44485 transitions. [2022-02-18 14:11:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:11:08,336 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 [2022-02-18 14:11:08,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:08,361 INFO L225 Difference]: With dead ends: 16197 [2022-02-18 14:11:08,361 INFO L226 Difference]: Without dead ends: 15770 [2022-02-18 14:11:08,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:11:08,362 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 [2022-02-18 14:11:08,362 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] [2022-02-18 14:11:08,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15770 states. [2022-02-18 14:11:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15770 to 15496. [2022-02-18 14:11:08,574 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) [2022-02-18 14:11:08,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-02-18 14:11:08,607 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-02-18 14:11:08,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:08,607 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-02-18 14:11:08,607 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) [2022-02-18 14:11:08,607 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-02-18 14:11:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:08,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:08,628 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:08,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-02-18 14:11:08,629 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1582029633, now seen corresponding path program 10 times [2022-02-18 14:11:08,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:08,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713344045] [2022-02-18 14:11:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:08,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:08,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:08,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713344045] [2022-02-18 14:11:08,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713344045] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:08,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:08,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:08,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629308772] [2022-02-18 14:11:08,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:08,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:08,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:08,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:08,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:08,746 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) [2022-02-18 14:11:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:08,965 INFO L93 Difference]: Finished difference Result 15767 states and 43402 transitions. [2022-02-18 14:11:08,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:08,965 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 [2022-02-18 14:11:08,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:08,989 INFO L225 Difference]: With dead ends: 15767 [2022-02-18 14:11:08,989 INFO L226 Difference]: Without dead ends: 15568 [2022-02-18 14:11:08,990 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 [2022-02-18 14:11:08,990 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 [2022-02-18 14:11:08,990 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] [2022-02-18 14:11:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15568 states. [2022-02-18 14:11:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15568 to 15456. [2022-02-18 14:11:09,164 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) [2022-02-18 14:11:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 42687 transitions. [2022-02-18 14:11:09,197 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 42687 transitions. Word has length 227 [2022-02-18 14:11:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:09,197 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 42687 transitions. [2022-02-18 14:11:09,197 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) [2022-02-18 14:11:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 42687 transitions. [2022-02-18 14:11:09,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:09,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:09,218 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] [2022-02-18 14:11:09,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-02-18 14:11:09,218 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:09,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:09,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1902779655, now seen corresponding path program 11 times [2022-02-18 14:11:09,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:09,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351941040] [2022-02-18 14:11:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:09,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:09,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:09,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351941040] [2022-02-18 14:11:09,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351941040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:09,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:09,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:09,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652345770] [2022-02-18 14:11:09,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:09,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:09,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:09,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:09,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:09,326 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) [2022-02-18 14:11:09,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:09,630 INFO L93 Difference]: Finished difference Result 16365 states and 44958 transitions. [2022-02-18 14:11:09,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:11:09,630 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 [2022-02-18 14:11:09,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:09,656 INFO L225 Difference]: With dead ends: 16365 [2022-02-18 14:11:09,656 INFO L226 Difference]: Without dead ends: 16218 [2022-02-18 14:11:09,657 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 [2022-02-18 14:11:09,657 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 [2022-02-18 14:11:09,657 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] [2022-02-18 14:11:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16218 states. [2022-02-18 14:11:09,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16218 to 15752. [2022-02-18 14:11:09,837 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) [2022-02-18 14:11:09,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-02-18 14:11:09,867 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-02-18 14:11:09,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:09,868 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-02-18 14:11:09,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:11:09,868 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-02-18 14:11:09,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:09,888 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:09,888 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:09,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-02-18 14:11:09,888 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:09,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:09,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1303466895, now seen corresponding path program 12 times [2022-02-18 14:11:09,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:09,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593379306] [2022-02-18 14:11:09,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:09,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:10,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:10,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593379306] [2022-02-18 14:11:10,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593379306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:10,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:10,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:10,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335207540] [2022-02-18 14:11:10,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:10,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:10,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:10,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:10,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:10,020 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) [2022-02-18 14:11:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:10,305 INFO L93 Difference]: Finished difference Result 16389 states and 44974 transitions. [2022-02-18 14:11:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:11:10,305 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 [2022-02-18 14:11:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:10,330 INFO L225 Difference]: With dead ends: 16389 [2022-02-18 14:11:10,330 INFO L226 Difference]: Without dead ends: 15962 [2022-02-18 14:11:10,331 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 [2022-02-18 14:11:10,331 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 [2022-02-18 14:11:10,331 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] [2022-02-18 14:11:10,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-02-18 14:11:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 15496. [2022-02-18 14:11:10,547 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) [2022-02-18 14:11:10,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-02-18 14:11:10,577 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-02-18 14:11:10,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:10,577 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-02-18 14:11:10,577 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) [2022-02-18 14:11:10,577 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-02-18 14:11:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:10,597 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:10,597 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:10,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-02-18 14:11:10,597 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:10,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:10,598 INFO L85 PathProgramCache]: Analyzing trace with hash -578565065, now seen corresponding path program 13 times [2022-02-18 14:11:10,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:10,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427767665] [2022-02-18 14:11:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:10,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:10,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:10,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427767665] [2022-02-18 14:11:10,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427767665] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:10,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:10,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:10,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727728617] [2022-02-18 14:11:10,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:10,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:10,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:10,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:10,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:10,703 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) [2022-02-18 14:11:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:10,909 INFO L93 Difference]: Finished difference Result 15959 states and 43891 transitions. [2022-02-18 14:11:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:10,909 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 [2022-02-18 14:11:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:10,934 INFO L225 Difference]: With dead ends: 15959 [2022-02-18 14:11:10,935 INFO L226 Difference]: Without dead ends: 15741 [2022-02-18 14:11:10,935 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 [2022-02-18 14:11:10,935 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 [2022-02-18 14:11:10,935 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] [2022-02-18 14:11:10,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15741 states. [2022-02-18 14:11:11,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15741 to 15464. [2022-02-18 14:11:11,116 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) [2022-02-18 14:11:11,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42705 transitions. [2022-02-18 14:11:11,146 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42705 transitions. Word has length 227 [2022-02-18 14:11:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:11,147 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42705 transitions. [2022-02-18 14:11:11,147 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) [2022-02-18 14:11:11,147 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42705 transitions. [2022-02-18 14:11:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:11,167 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:11,167 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:11,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-02-18 14:11:11,167 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1271202439, now seen corresponding path program 14 times [2022-02-18 14:11:11,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:11,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040077104] [2022-02-18 14:11:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:11,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:11,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040077104] [2022-02-18 14:11:11,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040077104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:11,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:11,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:11,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93620539] [2022-02-18 14:11:11,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:11,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:11,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:11,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:11,289 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) [2022-02-18 14:11:11,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:11,596 INFO L93 Difference]: Finished difference Result 16443 states and 45108 transitions. [2022-02-18 14:11:11,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:11:11,597 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 [2022-02-18 14:11:11,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:11,623 INFO L225 Difference]: With dead ends: 16443 [2022-02-18 14:11:11,623 INFO L226 Difference]: Without dead ends: 16296 [2022-02-18 14:11:11,623 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 [2022-02-18 14:11:11,623 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 [2022-02-18 14:11:11,623 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] [2022-02-18 14:11:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-02-18 14:11:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 15752. [2022-02-18 14:11:11,800 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) [2022-02-18 14:11:11,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43465 transitions. [2022-02-18 14:11:11,831 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43465 transitions. Word has length 227 [2022-02-18 14:11:11,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:11,831 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43465 transitions. [2022-02-18 14:11:11,831 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) [2022-02-18 14:11:11,831 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43465 transitions. [2022-02-18 14:11:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:11,851 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:11,851 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:11,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-02-18 14:11:11,852 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:11,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:11,852 INFO L85 PathProgramCache]: Analyzing trace with hash 182481693, now seen corresponding path program 15 times [2022-02-18 14:11:11,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:11,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511426144] [2022-02-18 14:11:11,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:11,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:11,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:11,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511426144] [2022-02-18 14:11:11,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511426144] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:11,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:11,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:11,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825866818] [2022-02-18 14:11:11,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:11,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:11,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:11,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:11,984 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) [2022-02-18 14:11:12,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:12,291 INFO L93 Difference]: Finished difference Result 16293 states and 44745 transitions. [2022-02-18 14:11:12,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:11:12,291 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 [2022-02-18 14:11:12,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:12,315 INFO L225 Difference]: With dead ends: 16293 [2022-02-18 14:11:12,316 INFO L226 Difference]: Without dead ends: 15866 [2022-02-18 14:11:12,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:11:12,316 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 [2022-02-18 14:11:12,316 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] [2022-02-18 14:11:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15866 states. [2022-02-18 14:11:12,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15866 to 15496. [2022-02-18 14:11:12,544 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) [2022-02-18 14:11:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42761 transitions. [2022-02-18 14:11:12,574 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42761 transitions. Word has length 227 [2022-02-18 14:11:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:12,575 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42761 transitions. [2022-02-18 14:11:12,575 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) [2022-02-18 14:11:12,575 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42761 transitions. [2022-02-18 14:11:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:12,595 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:12,595 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:12,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-02-18 14:11:12,595 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:12,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash -347223041, now seen corresponding path program 16 times [2022-02-18 14:11:12,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:12,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896436202] [2022-02-18 14:11:12,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:12,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:12,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:12,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896436202] [2022-02-18 14:11:12,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896436202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:12,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:12,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:12,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732755687] [2022-02-18 14:11:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:12,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:12,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:12,750 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) [2022-02-18 14:11:12,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:12,974 INFO L93 Difference]: Finished difference Result 15863 states and 43662 transitions. [2022-02-18 14:11:12,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:12,975 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 [2022-02-18 14:11:12,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:13,000 INFO L225 Difference]: With dead ends: 15863 [2022-02-18 14:11:13,000 INFO L226 Difference]: Without dead ends: 15668 [2022-02-18 14:11:13,000 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 [2022-02-18 14:11:13,000 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 [2022-02-18 14:11:13,000 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] [2022-02-18 14:11:13,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2022-02-18 14:11:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 15460. [2022-02-18 14:11:13,175 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) [2022-02-18 14:11:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42694 transitions. [2022-02-18 14:11:13,206 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42694 transitions. Word has length 227 [2022-02-18 14:11:13,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:13,206 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42694 transitions. [2022-02-18 14:11:13,206 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) [2022-02-18 14:11:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42694 transitions. [2022-02-18 14:11:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:13,227 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:13,228 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:13,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-02-18 14:11:13,228 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:13,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1496021797, now seen corresponding path program 17 times [2022-02-18 14:11:13,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:13,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505186116] [2022-02-18 14:11:13,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:13,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:13,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:13,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505186116] [2022-02-18 14:11:13,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505186116] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:13,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:13,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:13,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549807420] [2022-02-18 14:11:13,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:13,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:13,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:13,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:13,368 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) [2022-02-18 14:11:13,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:13,752 INFO L93 Difference]: Finished difference Result 16387 states and 44950 transitions. [2022-02-18 14:11:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:11:13,752 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 [2022-02-18 14:11:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:13,779 INFO L225 Difference]: With dead ends: 16387 [2022-02-18 14:11:13,780 INFO L226 Difference]: Without dead ends: 16240 [2022-02-18 14:11:13,780 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 [2022-02-18 14:11:13,780 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 [2022-02-18 14:11:13,780 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] [2022-02-18 14:11:13,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16240 states. [2022-02-18 14:11:13,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16240 to 15780. [2022-02-18 14:11:13,979 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) [2022-02-18 14:11:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15780 states to 15780 states and 43542 transitions. [2022-02-18 14:11:14,012 INFO L78 Accepts]: Start accepts. Automaton has 15780 states and 43542 transitions. Word has length 227 [2022-02-18 14:11:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:14,012 INFO L470 AbstractCegarLoop]: Abstraction has 15780 states and 43542 transitions. [2022-02-18 14:11:14,012 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) [2022-02-18 14:11:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 15780 states and 43542 transitions. [2022-02-18 14:11:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:14,033 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:14,033 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:14,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-02-18 14:11:14,033 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash 407301051, now seen corresponding path program 18 times [2022-02-18 14:11:14,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:14,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950569094] [2022-02-18 14:11:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:14,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:14,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:14,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950569094] [2022-02-18 14:11:14,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950569094] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:14,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:14,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:14,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890909649] [2022-02-18 14:11:14,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:14,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:14,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:14,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:14,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:14,150 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) [2022-02-18 14:11:14,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:14,414 INFO L93 Difference]: Finished difference Result 16237 states and 44587 transitions. [2022-02-18 14:11:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:11:14,415 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 [2022-02-18 14:11:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:14,439 INFO L225 Difference]: With dead ends: 16237 [2022-02-18 14:11:14,440 INFO L226 Difference]: Without dead ends: 15810 [2022-02-18 14:11:14,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:11:14,440 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 [2022-02-18 14:11:14,440 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] [2022-02-18 14:11:14,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15810 states. [2022-02-18 14:11:14,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15810 to 15524. [2022-02-18 14:11:14,702 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) [2022-02-18 14:11:14,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15524 states to 15524 states and 42838 transitions. [2022-02-18 14:11:14,732 INFO L78 Accepts]: Start accepts. Automaton has 15524 states and 42838 transitions. Word has length 227 [2022-02-18 14:11:14,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:14,732 INFO L470 AbstractCegarLoop]: Abstraction has 15524 states and 42838 transitions. [2022-02-18 14:11:14,732 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) [2022-02-18 14:11:14,732 INFO L276 IsEmpty]: Start isEmpty. Operand 15524 states and 42838 transitions. [2022-02-18 14:11:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:14,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:14,753 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:14,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-02-18 14:11:14,753 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:14,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:14,754 INFO L85 PathProgramCache]: Analyzing trace with hash -122403683, now seen corresponding path program 19 times [2022-02-18 14:11:14,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:14,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987261724] [2022-02-18 14:11:14,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:14,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:14,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:14,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987261724] [2022-02-18 14:11:14,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987261724] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:14,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:14,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:14,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016055583] [2022-02-18 14:11:14,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:14,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:14,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:14,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:14,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:14,877 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) [2022-02-18 14:11:15,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:15,100 INFO L93 Difference]: Finished difference Result 15891 states and 43707 transitions. [2022-02-18 14:11:15,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:11:15,100 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 [2022-02-18 14:11:15,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:15,125 INFO L225 Difference]: With dead ends: 15891 [2022-02-18 14:11:15,125 INFO L226 Difference]: Without dead ends: 15700 [2022-02-18 14:11:15,126 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 [2022-02-18 14:11:15,126 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 [2022-02-18 14:11:15,126 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] [2022-02-18 14:11:15,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2022-02-18 14:11:15,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 15492. [2022-02-18 14:11:15,308 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) [2022-02-18 14:11:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 42750 transitions. [2022-02-18 14:11:15,338 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 42750 transitions. Word has length 227 [2022-02-18 14:11:15,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:15,339 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 42750 transitions. [2022-02-18 14:11:15,339 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) [2022-02-18 14:11:15,339 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 42750 transitions. [2022-02-18 14:11:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:15,359 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:15,359 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:15,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-02-18 14:11:15,359 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:15,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1310251565, now seen corresponding path program 20 times [2022-02-18 14:11:15,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:15,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178456437] [2022-02-18 14:11:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:15,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:15,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:15,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178456437] [2022-02-18 14:11:15,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178456437] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:15,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:15,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:15,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612064740] [2022-02-18 14:11:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:15,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:15,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:15,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:15,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:15,495 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) [2022-02-18 14:11:15,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:15,704 INFO L93 Difference]: Finished difference Result 15775 states and 43416 transitions. [2022-02-18 14:11:15,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:15,704 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 [2022-02-18 14:11:15,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:15,729 INFO L225 Difference]: With dead ends: 15775 [2022-02-18 14:11:15,729 INFO L226 Difference]: Without dead ends: 15564 [2022-02-18 14:11:15,730 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 [2022-02-18 14:11:15,730 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 [2022-02-18 14:11:15,730 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] [2022-02-18 14:11:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15564 states. [2022-02-18 14:11:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15564 to 15452. [2022-02-18 14:11:15,910 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) [2022-02-18 14:11:15,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 42672 transitions. [2022-02-18 14:11:15,942 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 42672 transitions. Word has length 227 [2022-02-18 14:11:15,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:15,942 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 42672 transitions. [2022-02-18 14:11:15,943 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) [2022-02-18 14:11:15,943 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 42672 transitions. [2022-02-18 14:11:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:15,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:15,964 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:15,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-02-18 14:11:15,964 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash 521564985, now seen corresponding path program 21 times [2022-02-18 14:11:15,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:15,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194000445] [2022-02-18 14:11:15,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:16,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:16,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194000445] [2022-02-18 14:11:16,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194000445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:16,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:16,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:16,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828528202] [2022-02-18 14:11:16,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:16,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:16,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:16,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:16,081 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) [2022-02-18 14:11:16,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:16,357 INFO L93 Difference]: Finished difference Result 16029 states and 44083 transitions. [2022-02-18 14:11:16,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:11:16,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-18 14:11:16,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:16,383 INFO L225 Difference]: With dead ends: 16029 [2022-02-18 14:11:16,383 INFO L226 Difference]: Without dead ends: 15882 [2022-02-18 14:11:16,383 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 [2022-02-18 14:11:16,383 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 [2022-02-18 14:11:16,383 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] [2022-02-18 14:11:16,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15882 states. [2022-02-18 14:11:16,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15882 to 15693. [2022-02-18 14:11:16,570 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) [2022-02-18 14:11:16,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43309 transitions. [2022-02-18 14:11:16,604 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43309 transitions. Word has length 227 [2022-02-18 14:11:16,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:16,604 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43309 transitions. [2022-02-18 14:11:16,604 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) [2022-02-18 14:11:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43309 transitions. [2022-02-18 14:11:16,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:16,674 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:16,675 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, 1, 1, 1, 1] [2022-02-18 14:11:16,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-02-18 14:11:16,675 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:16,675 INFO L85 PathProgramCache]: Analyzing trace with hash -567155761, now seen corresponding path program 22 times [2022-02-18 14:11:16,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:16,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139651359] [2022-02-18 14:11:16,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:16,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:16,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:16,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139651359] [2022-02-18 14:11:16,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139651359] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:16,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:16,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:16,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304310303] [2022-02-18 14:11:16,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:16,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:16,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:16,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:16,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:16,808 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) [2022-02-18 14:11:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:17,089 INFO L93 Difference]: Finished difference Result 16053 states and 44099 transitions. [2022-02-18 14:11:17,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:11:17,089 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 [2022-02-18 14:11:17,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:17,117 INFO L225 Difference]: With dead ends: 16053 [2022-02-18 14:11:17,117 INFO L226 Difference]: Without dead ends: 15626 [2022-02-18 14:11:17,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:11:17,118 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 [2022-02-18 14:11:17,118 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] [2022-02-18 14:11:17,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15626 states. [2022-02-18 14:11:17,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15626 to 15437. [2022-02-18 14:11:17,313 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) [2022-02-18 14:11:17,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42605 transitions. [2022-02-18 14:11:17,344 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42605 transitions. Word has length 227 [2022-02-18 14:11:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:17,344 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42605 transitions. [2022-02-18 14:11:17,344 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) [2022-02-18 14:11:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42605 transitions. [2022-02-18 14:11:17,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:17,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:17,364 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:17,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-02-18 14:11:17,364 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:17,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:17,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1845779575, now seen corresponding path program 23 times [2022-02-18 14:11:17,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:17,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798209662] [2022-02-18 14:11:17,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:17,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:17,469 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:17,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:17,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798209662] [2022-02-18 14:11:17,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798209662] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:17,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:17,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:17,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23170603] [2022-02-18 14:11:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:17,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:17,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:17,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:17,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:17,470 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) [2022-02-18 14:11:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:17,693 INFO L93 Difference]: Finished difference Result 15623 states and 43016 transitions. [2022-02-18 14:11:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:17,694 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 [2022-02-18 14:11:17,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:17,717 INFO L225 Difference]: With dead ends: 15623 [2022-02-18 14:11:17,717 INFO L226 Difference]: Without dead ends: 15405 [2022-02-18 14:11:17,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:11:17,718 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 [2022-02-18 14:11:17,718 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] [2022-02-18 14:11:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15405 states. [2022-02-18 14:11:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15405 to 15405. [2022-02-18 14:11:17,900 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) [2022-02-18 14:11:17,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15405 states to 15405 states and 42545 transitions. [2022-02-18 14:11:17,932 INFO L78 Accepts]: Start accepts. Automaton has 15405 states and 42545 transitions. Word has length 227 [2022-02-18 14:11:17,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:17,932 INFO L470 AbstractCegarLoop]: Abstraction has 15405 states and 42545 transitions. [2022-02-18 14:11:17,933 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) [2022-02-18 14:11:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 15405 states and 42545 transitions. [2022-02-18 14:11:17,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:17,959 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:17,959 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:17,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-02-18 14:11:17,959 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:17,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:17,959 INFO L85 PathProgramCache]: Analyzing trace with hash -599420217, now seen corresponding path program 24 times [2022-02-18 14:11:17,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:17,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944263649] [2022-02-18 14:11:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:17,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:18,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:18,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944263649] [2022-02-18 14:11:18,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944263649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:18,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:18,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:18,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354242018] [2022-02-18 14:11:18,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:18,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:18,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:18,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:18,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:18,092 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) [2022-02-18 14:11:18,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:18,456 INFO L93 Difference]: Finished difference Result 16176 states and 44404 transitions. [2022-02-18 14:11:18,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:11:18,456 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 [2022-02-18 14:11:18,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:18,482 INFO L225 Difference]: With dead ends: 16176 [2022-02-18 14:11:18,483 INFO L226 Difference]: Without dead ends: 16029 [2022-02-18 14:11:18,483 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 [2022-02-18 14:11:18,483 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 [2022-02-18 14:11:18,483 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] [2022-02-18 14:11:18,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16029 states. [2022-02-18 14:11:18,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16029 to 15693. [2022-02-18 14:11:18,662 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) [2022-02-18 14:11:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43305 transitions. [2022-02-18 14:11:18,693 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43305 transitions. Word has length 227 [2022-02-18 14:11:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:18,694 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43305 transitions. [2022-02-18 14:11:18,694 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) [2022-02-18 14:11:18,694 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43305 transitions. [2022-02-18 14:11:18,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:18,714 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:18,714 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:18,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-02-18 14:11:18,714 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:18,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:18,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1688140963, now seen corresponding path program 25 times [2022-02-18 14:11:18,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:18,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376746627] [2022-02-18 14:11:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:18,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:18,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:18,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376746627] [2022-02-18 14:11:18,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376746627] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:18,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:18,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:18,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722091219] [2022-02-18 14:11:18,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:18,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:18,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:18,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:18,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:18,822 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) [2022-02-18 14:11:19,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:19,150 INFO L93 Difference]: Finished difference Result 16026 states and 44041 transitions. [2022-02-18 14:11:19,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:11:19,150 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 [2022-02-18 14:11:19,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:19,172 INFO L225 Difference]: With dead ends: 16026 [2022-02-18 14:11:19,172 INFO L226 Difference]: Without dead ends: 15599 [2022-02-18 14:11:19,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:11:19,172 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 [2022-02-18 14:11:19,172 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] [2022-02-18 14:11:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2022-02-18 14:11:19,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 15437. [2022-02-18 14:11:19,334 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) [2022-02-18 14:11:19,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42601 transitions. [2022-02-18 14:11:19,364 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42601 transitions. Word has length 227 [2022-02-18 14:11:19,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:19,364 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42601 transitions. [2022-02-18 14:11:19,364 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) [2022-02-18 14:11:19,364 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42601 transitions. [2022-02-18 14:11:19,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:19,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:19,384 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:19,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-02-18 14:11:19,384 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:19,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:19,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2077121599, now seen corresponding path program 26 times [2022-02-18 14:11:19,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:19,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407809560] [2022-02-18 14:11:19,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:19,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:19,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:19,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407809560] [2022-02-18 14:11:19,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407809560] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:19,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:19,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:19,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741363564] [2022-02-18 14:11:19,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:19,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:19,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:19,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:19,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:19,505 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) [2022-02-18 14:11:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:19,710 INFO L93 Difference]: Finished difference Result 15596 states and 42958 transitions. [2022-02-18 14:11:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 14:11:19,711 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 [2022-02-18 14:11:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:19,734 INFO L225 Difference]: With dead ends: 15596 [2022-02-18 14:11:19,734 INFO L226 Difference]: Without dead ends: 15401 [2022-02-18 14:11:19,734 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 [2022-02-18 14:11:19,734 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 [2022-02-18 14:11:19,734 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] [2022-02-18 14:11:19,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2022-02-18 14:11:19,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 15401. [2022-02-18 14:11:19,902 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) [2022-02-18 14:11:19,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15401 states to 15401 states and 42534 transitions. [2022-02-18 14:11:19,933 INFO L78 Accepts]: Start accepts. Automaton has 15401 states and 42534 transitions. Word has length 227 [2022-02-18 14:11:19,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:19,933 INFO L470 AbstractCegarLoop]: Abstraction has 15401 states and 42534 transitions. [2022-02-18 14:11:19,933 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) [2022-02-18 14:11:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand 15401 states and 42534 transitions. [2022-02-18 14:11:19,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:19,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:19,954 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:19,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-02-18 14:11:19,954 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:19,955 INFO L85 PathProgramCache]: Analyzing trace with hash -374600859, now seen corresponding path program 27 times [2022-02-18 14:11:19,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:19,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781621124] [2022-02-18 14:11:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:19,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:20,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:20,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781621124] [2022-02-18 14:11:20,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781621124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:20,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:20,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:20,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776839098] [2022-02-18 14:11:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:20,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:20,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:20,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:20,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:20,067 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) [2022-02-18 14:11:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:20,401 INFO L93 Difference]: Finished difference Result 16216 states and 44510 transitions. [2022-02-18 14:11:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:11:20,401 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 [2022-02-18 14:11:20,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:20,427 INFO L225 Difference]: With dead ends: 16216 [2022-02-18 14:11:20,427 INFO L226 Difference]: Without dead ends: 16069 [2022-02-18 14:11:20,428 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 [2022-02-18 14:11:20,428 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 [2022-02-18 14:11:20,428 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] [2022-02-18 14:11:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16069 states. [2022-02-18 14:11:20,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16069 to 15721. [2022-02-18 14:11:20,609 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) [2022-02-18 14:11:20,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15721 states to 15721 states and 43382 transitions. [2022-02-18 14:11:20,642 INFO L78 Accepts]: Start accepts. Automaton has 15721 states and 43382 transitions. Word has length 227 [2022-02-18 14:11:20,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:20,642 INFO L470 AbstractCegarLoop]: Abstraction has 15721 states and 43382 transitions. [2022-02-18 14:11:20,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:11:20,642 INFO L276 IsEmpty]: Start isEmpty. Operand 15721 states and 43382 transitions. [2022-02-18 14:11:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:20,663 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:20,663 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:20,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-02-18 14:11:20,663 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1463321605, now seen corresponding path program 28 times [2022-02-18 14:11:20,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:20,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44684772] [2022-02-18 14:11:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:20,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:20,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:20,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44684772] [2022-02-18 14:11:20,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44684772] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:20,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:20,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:20,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454146473] [2022-02-18 14:11:20,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:20,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:20,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:20,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:20,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:20,778 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) [2022-02-18 14:11:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:21,067 INFO L93 Difference]: Finished difference Result 16066 states and 44147 transitions. [2022-02-18 14:11:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:11:21,068 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 [2022-02-18 14:11:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:21,092 INFO L225 Difference]: With dead ends: 16066 [2022-02-18 14:11:21,092 INFO L226 Difference]: Without dead ends: 15639 [2022-02-18 14:11:21,093 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 [2022-02-18 14:11:21,093 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 [2022-02-18 14:11:21,093 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] [2022-02-18 14:11:21,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15639 states. [2022-02-18 14:11:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15639 to 15465. [2022-02-18 14:11:21,315 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) [2022-02-18 14:11:21,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15465 states to 15465 states and 42678 transitions. [2022-02-18 14:11:21,347 INFO L78 Accepts]: Start accepts. Automaton has 15465 states and 42678 transitions. Word has length 227 [2022-02-18 14:11:21,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:21,347 INFO L470 AbstractCegarLoop]: Abstraction has 15465 states and 42678 transitions. [2022-02-18 14:11:21,347 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) [2022-02-18 14:11:21,347 INFO L276 IsEmpty]: Start isEmpty. Operand 15465 states and 42678 transitions. [2022-02-18 14:11:21,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:21,367 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:21,367 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:21,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-02-18 14:11:21,368 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:21,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:21,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1993026339, now seen corresponding path program 29 times [2022-02-18 14:11:21,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:21,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573379392] [2022-02-18 14:11:21,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:21,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:21,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573379392] [2022-02-18 14:11:21,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573379392] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:21,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:21,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:21,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082576326] [2022-02-18 14:11:21,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:21,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:21,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:21,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:21,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:21,481 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) [2022-02-18 14:11:21,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:21,724 INFO L93 Difference]: Finished difference Result 15720 states and 43267 transitions. [2022-02-18 14:11:21,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:11:21,724 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 [2022-02-18 14:11:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:21,749 INFO L225 Difference]: With dead ends: 15720 [2022-02-18 14:11:21,749 INFO L226 Difference]: Without dead ends: 15529 [2022-02-18 14:11:21,750 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 [2022-02-18 14:11:21,750 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 [2022-02-18 14:11:21,750 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] [2022-02-18 14:11:21,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2022-02-18 14:11:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 15433. [2022-02-18 14:11:21,928 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) [2022-02-18 14:11:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15433 states to 15433 states and 42590 transitions. [2022-02-18 14:11:21,959 INFO L78 Accepts]: Start accepts. Automaton has 15433 states and 42590 transitions. Word has length 227 [2022-02-18 14:11:21,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:21,959 INFO L470 AbstractCegarLoop]: Abstraction has 15433 states and 42590 transitions. [2022-02-18 14:11:21,959 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) [2022-02-18 14:11:21,959 INFO L276 IsEmpty]: Start isEmpty. Operand 15433 states and 42590 transitions. [2022-02-18 14:11:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:21,978 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:21,978 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, 1, 1, 1, 1] [2022-02-18 14:11:21,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-02-18 14:11:21,979 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:21,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash -560371091, now seen corresponding path program 30 times [2022-02-18 14:11:21,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:21,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944889592] [2022-02-18 14:11:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:21,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:22,114 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:22,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:22,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944889592] [2022-02-18 14:11:22,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944889592] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:22,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:22,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:22,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336236277] [2022-02-18 14:11:22,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:22,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:22,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:22,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:22,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:22,116 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) [2022-02-18 14:11:22,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:22,344 INFO L93 Difference]: Finished difference Result 15604 states and 42976 transitions. [2022-02-18 14:11:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:22,344 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-18 14:11:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:22,367 INFO L225 Difference]: With dead ends: 15604 [2022-02-18 14:11:22,368 INFO L226 Difference]: Without dead ends: 15397 [2022-02-18 14:11:22,368 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 [2022-02-18 14:11:22,368 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 [2022-02-18 14:11:22,368 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] [2022-02-18 14:11:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15397 states. [2022-02-18 14:11:22,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15397 to 15397. [2022-02-18 14:11:22,537 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) [2022-02-18 14:11:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15397 states to 15397 states and 42523 transitions. [2022-02-18 14:11:22,568 INFO L78 Accepts]: Start accepts. Automaton has 15397 states and 42523 transitions. Word has length 227 [2022-02-18 14:11:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:22,568 INFO L470 AbstractCegarLoop]: Abstraction has 15397 states and 42523 transitions. [2022-02-18 14:11:22,568 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) [2022-02-18 14:11:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 15397 states and 42523 transitions. [2022-02-18 14:11:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:22,588 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:22,588 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:22,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-02-18 14:11:22,588 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash 875777767, now seen corresponding path program 31 times [2022-02-18 14:11:22,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:22,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813989087] [2022-02-18 14:11:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:22,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:22,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:22,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813989087] [2022-02-18 14:11:22,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813989087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:22,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:22,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:22,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557754952] [2022-02-18 14:11:22,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:22,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:22,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:22,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:22,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:22,695 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) [2022-02-18 14:11:23,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:23,014 INFO L93 Difference]: Finished difference Result 15456 states and 41855 transitions. [2022-02-18 14:11:23,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:11:23,015 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 [2022-02-18 14:11:23,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:23,041 INFO L225 Difference]: With dead ends: 15456 [2022-02-18 14:11:23,041 INFO L226 Difference]: Without dead ends: 15309 [2022-02-18 14:11:23,041 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 [2022-02-18 14:11:23,041 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 [2022-02-18 14:11:23,041 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] [2022-02-18 14:11:23,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15309 states. [2022-02-18 14:11:23,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15309 to 13797. [2022-02-18 14:11:23,291 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) [2022-02-18 14:11:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 37800 transitions. [2022-02-18 14:11:23,320 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 37800 transitions. Word has length 227 [2022-02-18 14:11:23,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:23,320 INFO L470 AbstractCegarLoop]: Abstraction has 13797 states and 37800 transitions. [2022-02-18 14:11:23,320 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) [2022-02-18 14:11:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 37800 transitions. [2022-02-18 14:11:23,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:23,338 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:23,338 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:23,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-02-18 14:11:23,338 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:23,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:23,338 INFO L85 PathProgramCache]: Analyzing trace with hash -212942979, now seen corresponding path program 32 times [2022-02-18 14:11:23,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:23,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602472074] [2022-02-18 14:11:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:23,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:23,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:23,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602472074] [2022-02-18 14:11:23,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602472074] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:23,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:23,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:23,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535268091] [2022-02-18 14:11:23,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:23,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:23,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:23,468 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) [2022-02-18 14:11:23,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:23,782 INFO L93 Difference]: Finished difference Result 15135 states and 41078 transitions. [2022-02-18 14:11:23,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:11:23,782 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 [2022-02-18 14:11:23,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:23,805 INFO L225 Difference]: With dead ends: 15135 [2022-02-18 14:11:23,805 INFO L226 Difference]: Without dead ends: 14708 [2022-02-18 14:11:23,805 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 [2022-02-18 14:11:23,806 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 [2022-02-18 14:11:23,806 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] [2022-02-18 14:11:23,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14708 states. [2022-02-18 14:11:23,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14708 to 13541. [2022-02-18 14:11:23,985 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) [2022-02-18 14:11:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 37096 transitions. [2022-02-18 14:11:24,011 INFO L78 Accepts]: Start accepts. Automaton has 13541 states and 37096 transitions. Word has length 227 [2022-02-18 14:11:24,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:24,011 INFO L470 AbstractCegarLoop]: Abstraction has 13541 states and 37096 transitions. [2022-02-18 14:11:24,011 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) [2022-02-18 14:11:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand 13541 states and 37096 transitions. [2022-02-18 14:11:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:24,028 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:24,028 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:24,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-02-18 14:11:24,028 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:24,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:24,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1861767551, now seen corresponding path program 33 times [2022-02-18 14:11:24,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:24,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632145135] [2022-02-18 14:11:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:24,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:24,171 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:24,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:24,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632145135] [2022-02-18 14:11:24,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632145135] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:24,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:24,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:24,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306024616] [2022-02-18 14:11:24,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:24,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:24,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:24,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:24,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:24,173 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) [2022-02-18 14:11:24,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:24,439 INFO L93 Difference]: Finished difference Result 14789 states and 40198 transitions. [2022-02-18 14:11:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 14:11:24,440 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 [2022-02-18 14:11:24,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:24,462 INFO L225 Difference]: With dead ends: 14789 [2022-02-18 14:11:24,462 INFO L226 Difference]: Without dead ends: 14598 [2022-02-18 14:11:24,462 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 [2022-02-18 14:11:24,463 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 [2022-02-18 14:11:24,463 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] [2022-02-18 14:11:24,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2022-02-18 14:11:24,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 13509. [2022-02-18 14:11:24,627 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) [2022-02-18 14:11:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 37008 transitions. [2022-02-18 14:11:24,654 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 37008 transitions. Word has length 227 [2022-02-18 14:11:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:24,655 INFO L470 AbstractCegarLoop]: Abstraction has 13509 states and 37008 transitions. [2022-02-18 14:11:24,655 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) [2022-02-18 14:11:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 37008 transitions. [2022-02-18 14:11:24,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:24,673 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:24,673 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:24,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-02-18 14:11:24,673 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:24,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:24,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1719428251, now seen corresponding path program 34 times [2022-02-18 14:11:24,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:24,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206441046] [2022-02-18 14:11:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:24,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:24,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:24,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206441046] [2022-02-18 14:11:24,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206441046] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:24,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:24,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:24,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470265223] [2022-02-18 14:11:24,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:24,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:24,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:24,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:24,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:24,794 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) [2022-02-18 14:11:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:25,065 INFO L93 Difference]: Finished difference Result 14769 states and 40139 transitions. [2022-02-18 14:11:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 14:11:25,065 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 [2022-02-18 14:11:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:25,088 INFO L225 Difference]: With dead ends: 14769 [2022-02-18 14:11:25,088 INFO L226 Difference]: Without dead ends: 14566 [2022-02-18 14:11:25,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:11:25,089 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 [2022-02-18 14:11:25,089 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] [2022-02-18 14:11:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14566 states. [2022-02-18 14:11:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14566 to 13477. [2022-02-18 14:11:25,250 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) [2022-02-18 14:11:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13477 states to 13477 states and 36920 transitions. [2022-02-18 14:11:25,277 INFO L78 Accepts]: Start accepts. Automaton has 13477 states and 36920 transitions. Word has length 227 [2022-02-18 14:11:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:25,277 INFO L470 AbstractCegarLoop]: Abstraction has 13477 states and 36920 transitions. [2022-02-18 14:11:25,277 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) [2022-02-18 14:11:25,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13477 states and 36920 transitions. [2022-02-18 14:11:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:25,300 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:25,300 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] [2022-02-18 14:11:25,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-02-18 14:11:25,300 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:25,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:25,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1870981163, now seen corresponding path program 35 times [2022-02-18 14:11:25,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:25,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196693303] [2022-02-18 14:11:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:25,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:25,423 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:25,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:25,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196693303] [2022-02-18 14:11:25,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196693303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:25,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:25,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 14:11:25,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503361291] [2022-02-18 14:11:25,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:25,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 14:11:25,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:25,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 14:11:25,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-18 14:11:25,424 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) [2022-02-18 14:11:25,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:25,631 INFO L93 Difference]: Finished difference Result 14641 states and 39819 transitions. [2022-02-18 14:11:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 14:11:25,631 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 [2022-02-18 14:11:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:25,653 INFO L225 Difference]: With dead ends: 14641 [2022-02-18 14:11:25,653 INFO L226 Difference]: Without dead ends: 14418 [2022-02-18 14:11:25,653 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 [2022-02-18 14:11:25,653 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 [2022-02-18 14:11:25,653 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] [2022-02-18 14:11:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14418 states. [2022-02-18 14:11:25,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14418 to 13785. [2022-02-18 14:11:25,889 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) [2022-02-18 14:11:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 37683 transitions. [2022-02-18 14:11:25,918 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 37683 transitions. Word has length 227 [2022-02-18 14:11:25,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:25,918 INFO L470 AbstractCegarLoop]: Abstraction has 13785 states and 37683 transitions. [2022-02-18 14:11:25,918 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) [2022-02-18 14:11:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 37683 transitions. [2022-02-18 14:11:25,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-18 14:11:25,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:25,936 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] [2022-02-18 14:11:25,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-02-18 14:11:25,937 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:25,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1267834919, now seen corresponding path program 1 times [2022-02-18 14:11:25,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:25,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081641370] [2022-02-18 14:11:25,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:25,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:25,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:25,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081641370] [2022-02-18 14:11:25,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081641370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:25,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:25,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 14:11:25,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366751867] [2022-02-18 14:11:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:25,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 14:11:25,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:25,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 14:11:25,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:11:25,970 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) [2022-02-18 14:11:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:26,060 INFO L93 Difference]: Finished difference Result 16699 states and 45640 transitions. [2022-02-18 14:11:26,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:11:26,060 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 [2022-02-18 14:11:26,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:26,086 INFO L225 Difference]: With dead ends: 16699 [2022-02-18 14:11:26,087 INFO L226 Difference]: Without dead ends: 16699 [2022-02-18 14:11:26,087 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 [2022-02-18 14:11:26,087 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 [2022-02-18 14:11:26,087 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] [2022-02-18 14:11:26,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16699 states. [2022-02-18 14:11:26,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16699 to 13663. [2022-02-18 14:11:26,264 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) [2022-02-18 14:11:26,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13663 states to 13663 states and 37098 transitions. [2022-02-18 14:11:26,291 INFO L78 Accepts]: Start accepts. Automaton has 13663 states and 37098 transitions. Word has length 227 [2022-02-18 14:11:26,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:26,291 INFO L470 AbstractCegarLoop]: Abstraction has 13663 states and 37098 transitions. [2022-02-18 14:11:26,291 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) [2022-02-18 14:11:26,291 INFO L276 IsEmpty]: Start isEmpty. Operand 13663 states and 37098 transitions. [2022-02-18 14:11:26,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-18 14:11:26,310 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:26,310 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:26,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-02-18 14:11:26,310 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:26,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash 501455919, now seen corresponding path program 1 times [2022-02-18 14:11:26,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:26,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162261276] [2022-02-18 14:11:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:26,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:26,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:26,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162261276] [2022-02-18 14:11:26,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162261276] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:11:26,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765591666] [2022-02-18 14:11:26,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:26,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:11:26,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:11:26,357 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) [2022-02-18 14:11:26,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 14:11:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:26,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-18 14:11:26,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:11:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:26,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:11:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:27,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765591666] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:11:27,292 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:11:27,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-02-18 14:11:27,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535281998] [2022-02-18 14:11:27,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:11:27,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-18 14:11:27,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-18 14:11:27,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:11:27,294 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) [2022-02-18 14:11:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:27,478 INFO L93 Difference]: Finished difference Result 31225 states and 85401 transitions. [2022-02-18 14:11:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:11:27,478 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 [2022-02-18 14:11:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:27,533 INFO L225 Difference]: With dead ends: 31225 [2022-02-18 14:11:27,533 INFO L226 Difference]: Without dead ends: 31225 [2022-02-18 14:11:27,533 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 [2022-02-18 14:11:27,534 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 1022 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:11:27,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 1493 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:11:27,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2022-02-18 14:11:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 23355. [2022-02-18 14:11:27,939 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) [2022-02-18 14:11:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23355 states to 23355 states and 64197 transitions. [2022-02-18 14:11:27,987 INFO L78 Accepts]: Start accepts. Automaton has 23355 states and 64197 transitions. Word has length 230 [2022-02-18 14:11:27,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:27,987 INFO L470 AbstractCegarLoop]: Abstraction has 23355 states and 64197 transitions. [2022-02-18 14:11:27,987 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) [2022-02-18 14:11:27,987 INFO L276 IsEmpty]: Start isEmpty. Operand 23355 states and 64197 transitions. [2022-02-18 14:11:28,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-18 14:11:28,011 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:28,011 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:28,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 14:11:28,212 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 [2022-02-18 14:11:28,212 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash -563810257, now seen corresponding path program 1 times [2022-02-18 14:11:28,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:28,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455671808] [2022-02-18 14:11:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:28,268 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:28,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:28,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455671808] [2022-02-18 14:11:28,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455671808] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:11:28,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838683628] [2022-02-18 14:11:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:28,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:11:28,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:11:28,269 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) [2022-02-18 14:11:28,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 14:11:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:28,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-18 14:11:28,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:11:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:28,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:11:29,403 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:29,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838683628] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:11:29,403 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:11:29,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-02-18 14:11:29,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757160620] [2022-02-18 14:11:29,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:11:29,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-18 14:11:29,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:29,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-18 14:11:29,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-02-18 14:11:29,405 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) [2022-02-18 14:11:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:29,853 INFO L93 Difference]: Finished difference Result 56701 states and 156233 transitions. [2022-02-18 14:11:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 14:11:29,854 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 [2022-02-18 14:11:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:29,955 INFO L225 Difference]: With dead ends: 56701 [2022-02-18 14:11:29,955 INFO L226 Difference]: Without dead ends: 56701 [2022-02-18 14:11:29,955 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 [2022-02-18 14:11:29,958 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 914 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-18 14:11:29,958 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] [2022-02-18 14:11:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56701 states. [2022-02-18 14:11:30,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56701 to 39273. [2022-02-18 14:11:30,570 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) [2022-02-18 14:11:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109771 transitions. [2022-02-18 14:11:30,653 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109771 transitions. Word has length 230 [2022-02-18 14:11:30,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:30,653 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109771 transitions. [2022-02-18 14:11:30,653 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) [2022-02-18 14:11:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109771 transitions. [2022-02-18 14:11:30,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:11:30,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:30,683 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:30,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-18 14:11:30,884 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 [2022-02-18 14:11:30,884 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:30,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1435683988, now seen corresponding path program 1 times [2022-02-18 14:11:30,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:30,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993039300] [2022-02-18 14:11:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:30,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:31,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:31,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993039300] [2022-02-18 14:11:31,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993039300] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:31,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:31,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:11:31,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973927878] [2022-02-18 14:11:31,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:31,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:11:31,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:31,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:11:31,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:11:31,968 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) [2022-02-18 14:11:33,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:33,659 INFO L93 Difference]: Finished difference Result 48771 states and 134993 transitions. [2022-02-18 14:11:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 14:11:33,659 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 [2022-02-18 14:11:33,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:33,744 INFO L225 Difference]: With dead ends: 48771 [2022-02-18 14:11:33,744 INFO L226 Difference]: Without dead ends: 47979 [2022-02-18 14:11:33,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=597, Invalid=2265, Unknown=0, NotChecked=0, Total=2862 [2022-02-18 14:11:33,745 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 [2022-02-18 14:11:33,745 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] [2022-02-18 14:11:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47979 states. [2022-02-18 14:11:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47979 to 39273. [2022-02-18 14:11:34,439 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) [2022-02-18 14:11:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109761 transitions. [2022-02-18 14:11:34,532 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109761 transitions. Word has length 231 [2022-02-18 14:11:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:34,533 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109761 transitions. [2022-02-18 14:11:34,533 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) [2022-02-18 14:11:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109761 transitions. [2022-02-18 14:11:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:11:34,692 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:34,692 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:34,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-02-18 14:11:34,693 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash 766716600, now seen corresponding path program 2 times [2022-02-18 14:11:34,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:34,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083076882] [2022-02-18 14:11:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:34,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:35,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:35,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083076882] [2022-02-18 14:11:35,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083076882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:35,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:35,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:11:35,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374087054] [2022-02-18 14:11:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:35,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:11:35,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:11:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:11:35,264 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) [2022-02-18 14:11:37,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:37,269 INFO L93 Difference]: Finished difference Result 52312 states and 144812 transitions. [2022-02-18 14:11:37,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-18 14:11:37,269 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 [2022-02-18 14:11:37,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:37,366 INFO L225 Difference]: With dead ends: 52312 [2022-02-18 14:11:37,366 INFO L226 Difference]: Without dead ends: 51663 [2022-02-18 14:11:37,367 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 [2022-02-18 14:11:37,367 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 2031 mSDsluCounter, 5435 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:11:37,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2031 Valid, 5771 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-18 14:11:37,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51663 states. [2022-02-18 14:11:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51663 to 39616. [2022-02-18 14:11:38,099 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) [2022-02-18 14:11:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39616 states to 39616 states and 110689 transitions. [2022-02-18 14:11:38,335 INFO L78 Accepts]: Start accepts. Automaton has 39616 states and 110689 transitions. Word has length 231 [2022-02-18 14:11:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:38,335 INFO L470 AbstractCegarLoop]: Abstraction has 39616 states and 110689 transitions. [2022-02-18 14:11:38,335 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) [2022-02-18 14:11:38,335 INFO L276 IsEmpty]: Start isEmpty. Operand 39616 states and 110689 transitions. [2022-02-18 14:11:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:11:38,370 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:38,370 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:38,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-02-18 14:11:38,370 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:38,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1454566740, now seen corresponding path program 3 times [2022-02-18 14:11:38,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:38,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136366929] [2022-02-18 14:11:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:38,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:39,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:39,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136366929] [2022-02-18 14:11:39,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136366929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:39,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:39,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:11:39,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823253320] [2022-02-18 14:11:39,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:39,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:11:39,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:39,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:11:39,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:11:39,090 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) [2022-02-18 14:11:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:46,150 INFO L93 Difference]: Finished difference Result 67360 states and 185691 transitions. [2022-02-18 14:11:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-02-18 14:11:46,151 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 [2022-02-18 14:11:46,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:46,282 INFO L225 Difference]: With dead ends: 67360 [2022-02-18 14:11:46,282 INFO L226 Difference]: Without dead ends: 67360 [2022-02-18 14:11:46,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4835 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3572, Invalid=14250, Unknown=0, NotChecked=0, Total=17822 [2022-02-18 14:11:46,283 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 2470 mSDsluCounter, 9284 mSDsCounter, 0 mSdLazyCounter, 3474 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 9821 SdHoareTripleChecker+Invalid, 3498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:11:46,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2470 Valid, 9821 Invalid, 3498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:11:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67360 states. [2022-02-18 14:11:47,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67360 to 39680. [2022-02-18 14:11:47,256 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) [2022-02-18 14:11:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-02-18 14:11:47,341 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-02-18 14:11:47,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:47,341 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-02-18 14:11:47,341 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) [2022-02-18 14:11:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-02-18 14:11:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:11:47,377 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:47,377 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:47,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-02-18 14:11:47,377 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:47,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1020096502, now seen corresponding path program 4 times [2022-02-18 14:11:47,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:47,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306546872] [2022-02-18 14:11:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:47,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:48,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:48,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306546872] [2022-02-18 14:11:48,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306546872] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:48,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:48,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:11:48,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706257980] [2022-02-18 14:11:48,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:48,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:11:48,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:48,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:11:48,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:11:48,162 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) [2022-02-18 14:11:54,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:54,762 INFO L93 Difference]: Finished difference Result 52998 states and 146732 transitions. [2022-02-18 14:11:54,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-18 14:11:54,762 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 [2022-02-18 14:11:54,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:54,864 INFO L225 Difference]: With dead ends: 52998 [2022-02-18 14:11:54,864 INFO L226 Difference]: Without dead ends: 52998 [2022-02-18 14:11:54,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=3332, Invalid=12418, Unknown=0, NotChecked=0, Total=15750 [2022-02-18 14:11:54,865 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 2288 mSDsluCounter, 10031 mSDsCounter, 0 mSdLazyCounter, 3680 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 10557 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:11:54,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2288 Valid, 10557 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3680 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:11:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52998 states. [2022-02-18 14:11:55,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52998 to 39680. [2022-02-18 14:11:55,761 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) [2022-02-18 14:11:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-02-18 14:11:55,854 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-02-18 14:11:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:55,854 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-02-18 14:11:55,855 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) [2022-02-18 14:11:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-02-18 14:11:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:11:55,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:55,891 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:55,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-02-18 14:11:55,891 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:55,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash -773984514, now seen corresponding path program 5 times [2022-02-18 14:11:55,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:55,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751617844] [2022-02-18 14:11:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:11:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:11:56,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:11:56,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751617844] [2022-02-18 14:11:56,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751617844] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:11:56,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:11:56,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:11:56,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075846964] [2022-02-18 14:11:56,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:11:56,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:11:56,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:11:56,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:11:56,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:11:56,557 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) [2022-02-18 14:11:58,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:11:58,837 INFO L93 Difference]: Finished difference Result 50928 states and 141170 transitions. [2022-02-18 14:11:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-18 14:11:58,838 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 [2022-02-18 14:11:58,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:11:58,933 INFO L225 Difference]: With dead ends: 50928 [2022-02-18 14:11:58,934 INFO L226 Difference]: Without dead ends: 50928 [2022-02-18 14:11:58,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=872, Invalid=2910, Unknown=0, NotChecked=0, Total=3782 [2022-02-18 14:11:58,934 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 [2022-02-18 14:11:58,934 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] [2022-02-18 14:11:58,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50928 states. [2022-02-18 14:11:59,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50928 to 39680. [2022-02-18 14:11:59,566 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) [2022-02-18 14:11:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-02-18 14:11:59,829 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-02-18 14:11:59,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:11:59,829 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-02-18 14:11:59,829 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) [2022-02-18 14:11:59,830 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-02-18 14:11:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:11:59,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:11:59,864 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:11:59,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-02-18 14:11:59,864 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:11:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:11:59,865 INFO L85 PathProgramCache]: Analyzing trace with hash -430937490, now seen corresponding path program 6 times [2022-02-18 14:11:59,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:11:59,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522694840] [2022-02-18 14:11:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:11:59,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:11:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:00,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:00,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522694840] [2022-02-18 14:12:00,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522694840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:00,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:00,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:12:00,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243417626] [2022-02-18 14:12:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:00,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:12:00,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:00,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:12:00,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:12:00,514 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) [2022-02-18 14:12:07,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:12:07,855 INFO L93 Difference]: Finished difference Result 57004 states and 157565 transitions. [2022-02-18 14:12:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-18 14:12:07,855 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 [2022-02-18 14:12:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:12:07,964 INFO L225 Difference]: With dead ends: 57004 [2022-02-18 14:12:07,965 INFO L226 Difference]: Without dead ends: 56355 [2022-02-18 14:12:07,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5909 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3953, Invalid=16353, Unknown=0, NotChecked=0, Total=20306 [2022-02-18 14:12:07,966 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 2444 mSDsluCounter, 10148 mSDsCounter, 0 mSdLazyCounter, 3538 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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 [2022-02-18 14:12:07,966 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] [2022-02-18 14:12:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56355 states. [2022-02-18 14:12:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56355 to 39776. [2022-02-18 14:12:08,686 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) [2022-02-18 14:12:08,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39776 states to 39776 states and 111157 transitions. [2022-02-18 14:12:08,773 INFO L78 Accepts]: Start accepts. Automaton has 39776 states and 111157 transitions. Word has length 231 [2022-02-18 14:12:08,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:12:08,773 INFO L470 AbstractCegarLoop]: Abstraction has 39776 states and 111157 transitions. [2022-02-18 14:12:08,773 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) [2022-02-18 14:12:08,773 INFO L276 IsEmpty]: Start isEmpty. Operand 39776 states and 111157 transitions. [2022-02-18 14:12:08,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:12:08,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:12:08,812 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:12:08,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-02-18 14:12:08,813 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:12:08,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:12:08,813 INFO L85 PathProgramCache]: Analyzing trace with hash 256912650, now seen corresponding path program 7 times [2022-02-18 14:12:08,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:12:08,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688285053] [2022-02-18 14:12:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:12:08,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:12:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:09,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:09,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688285053] [2022-02-18 14:12:09,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688285053] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:09,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:09,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:12:09,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735634708] [2022-02-18 14:12:09,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:09,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:12:09,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:09,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:12:09,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:12:09,425 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) [2022-02-18 14:12:12,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:12:12,101 INFO L93 Difference]: Finished difference Result 55069 states and 152952 transitions. [2022-02-18 14:12:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:12:12,102 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 [2022-02-18 14:12:12,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:12:12,209 INFO L225 Difference]: With dead ends: 55069 [2022-02-18 14:12:12,209 INFO L226 Difference]: Without dead ends: 55069 [2022-02-18 14:12:12,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=922, Invalid=2984, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:12:12,209 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1831 mSDsluCounter, 5138 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-18 14:12:12,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1831 Valid, 5494 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-18 14:12:12,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55069 states. [2022-02-18 14:12:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55069 to 39784. [2022-02-18 14:12:12,999 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) [2022-02-18 14:12:13,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39784 states to 39784 states and 111191 transitions. [2022-02-18 14:12:13,086 INFO L78 Accepts]: Start accepts. Automaton has 39784 states and 111191 transitions. Word has length 231 [2022-02-18 14:12:13,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:12:13,086 INFO L470 AbstractCegarLoop]: Abstraction has 39784 states and 111191 transitions. [2022-02-18 14:12:13,086 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) [2022-02-18 14:12:13,086 INFO L276 IsEmpty]: Start isEmpty. Operand 39784 states and 111191 transitions. [2022-02-18 14:12:13,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:12:13,123 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:12:13,123 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:12:13,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-02-18 14:12:13,123 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:12:13,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:12:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2077216704, now seen corresponding path program 8 times [2022-02-18 14:12:13,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:12:13,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220969996] [2022-02-18 14:12:13,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:12:13,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:12:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:13,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:13,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220969996] [2022-02-18 14:12:13,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220969996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:13,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:13,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:12:13,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273160467] [2022-02-18 14:12:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:13,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:12:13,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:12:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:12:13,860 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) [2022-02-18 14:12:22,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:12:22,012 INFO L93 Difference]: Finished difference Result 57442 states and 159297 transitions. [2022-02-18 14:12:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-18 14:12:22,012 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 [2022-02-18 14:12:22,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:12:22,126 INFO L225 Difference]: With dead ends: 57442 [2022-02-18 14:12:22,126 INFO L226 Difference]: Without dead ends: 57442 [2022-02-18 14:12:22,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6614 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=4673, Invalid=17677, Unknown=0, NotChecked=0, Total=22350 [2022-02-18 14:12:22,127 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 2474 mSDsluCounter, 9570 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 10139 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:12:22,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2474 Valid, 10139 Invalid, 3558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:12:22,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57442 states. [2022-02-18 14:12:22,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57442 to 39780. [2022-02-18 14:12:22,989 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) [2022-02-18 14:12:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39780 states to 39780 states and 111172 transitions. [2022-02-18 14:12:23,073 INFO L78 Accepts]: Start accepts. Automaton has 39780 states and 111172 transitions. Word has length 231 [2022-02-18 14:12:23,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:12:23,073 INFO L470 AbstractCegarLoop]: Abstraction has 39780 states and 111172 transitions. [2022-02-18 14:12:23,073 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) [2022-02-18 14:12:23,073 INFO L276 IsEmpty]: Start isEmpty. Operand 39780 states and 111172 transitions. [2022-02-18 14:12:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:12:23,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:12:23,109 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:12:23,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-02-18 14:12:23,109 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:12:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:12:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1971638604, now seen corresponding path program 9 times [2022-02-18 14:12:23,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:12:23,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738364128] [2022-02-18 14:12:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:12:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:12:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:23,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:23,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738364128] [2022-02-18 14:12:23,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738364128] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:23,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:23,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:12:23,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902179330] [2022-02-18 14:12:23,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:23,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:12:23,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:23,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:12:23,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:12:23,614 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) [2022-02-18 14:12:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:12:26,365 INFO L93 Difference]: Finished difference Result 55568 states and 154218 transitions. [2022-02-18 14:12:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:12:26,365 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 [2022-02-18 14:12:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:12:26,474 INFO L225 Difference]: With dead ends: 55568 [2022-02-18 14:12:26,474 INFO L226 Difference]: Without dead ends: 55568 [2022-02-18 14:12:26,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=908, Invalid=2998, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:12:26,475 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1856 mSDsluCounter, 5584 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 5936 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-18 14:12:26,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1856 Valid, 5936 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-18 14:12:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55568 states. [2022-02-18 14:12:27,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55568 to 39728. [2022-02-18 14:12:27,142 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) [2022-02-18 14:12:27,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39728 states to 39728 states and 111009 transitions. [2022-02-18 14:12:27,233 INFO L78 Accepts]: Start accepts. Automaton has 39728 states and 111009 transitions. Word has length 231 [2022-02-18 14:12:27,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:12:27,234 INFO L470 AbstractCegarLoop]: Abstraction has 39728 states and 111009 transitions. [2022-02-18 14:12:27,234 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) [2022-02-18 14:12:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 39728 states and 111009 transitions. [2022-02-18 14:12:27,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:12:27,271 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:12:27,271 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:12:27,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-02-18 14:12:27,271 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:12:27,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:12:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash 533439422, now seen corresponding path program 10 times [2022-02-18 14:12:27,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:12:27,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537716099] [2022-02-18 14:12:27,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:12:27,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:12:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:28,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:28,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537716099] [2022-02-18 14:12:28,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537716099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:28,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:28,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:12:28,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220149956] [2022-02-18 14:12:28,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:28,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:12:28,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:28,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:12:28,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:12:28,056 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) [2022-02-18 14:12:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:12:35,078 INFO L93 Difference]: Finished difference Result 62497 states and 172477 transitions. [2022-02-18 14:12:35,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-02-18 14:12:35,078 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 [2022-02-18 14:12:35,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:12:35,215 INFO L225 Difference]: With dead ends: 62497 [2022-02-18 14:12:35,215 INFO L226 Difference]: Without dead ends: 62025 [2022-02-18 14:12:35,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5891 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=4290, Invalid=15450, Unknown=0, NotChecked=0, Total=19740 [2022-02-18 14:12:35,217 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 2296 mSDsluCounter, 7887 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:12:35,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2296 Valid, 8323 Invalid, 3086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-18 14:12:35,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62025 states. [2022-02-18 14:12:36,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62025 to 39752. [2022-02-18 14:12:36,101 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) [2022-02-18 14:12:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39752 states to 39752 states and 111079 transitions. [2022-02-18 14:12:36,191 INFO L78 Accepts]: Start accepts. Automaton has 39752 states and 111079 transitions. Word has length 231 [2022-02-18 14:12:36,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:12:36,191 INFO L470 AbstractCegarLoop]: Abstraction has 39752 states and 111079 transitions. [2022-02-18 14:12:36,192 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) [2022-02-18 14:12:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 39752 states and 111079 transitions. [2022-02-18 14:12:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:12:36,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:12:36,229 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:12:36,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-02-18 14:12:36,230 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:12:36,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:12:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash -614085760, now seen corresponding path program 11 times [2022-02-18 14:12:36,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:12:36,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630344967] [2022-02-18 14:12:36,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:12:36,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:12:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:37,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:37,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630344967] [2022-02-18 14:12:37,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630344967] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:37,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:37,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:12:37,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628828825] [2022-02-18 14:12:37,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:37,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:12:37,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:37,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:12:37,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:12:37,212 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) [2022-02-18 14:12:46,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:12:46,623 INFO L93 Difference]: Finished difference Result 63469 states and 175453 transitions. [2022-02-18 14:12:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-18 14:12:46,624 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 [2022-02-18 14:12:46,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:12:46,753 INFO L225 Difference]: With dead ends: 63469 [2022-02-18 14:12:46,754 INFO L226 Difference]: Without dead ends: 62944 [2022-02-18 14:12:46,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7692 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=5382, Invalid=19424, Unknown=0, NotChecked=0, Total=24806 [2022-02-18 14:12:46,755 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 [2022-02-18 14:12:46,755 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] [2022-02-18 14:12:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62944 states. [2022-02-18 14:12:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62944 to 39808. [2022-02-18 14:12:47,664 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) [2022-02-18 14:12:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39808 states to 39808 states and 111233 transitions. [2022-02-18 14:12:47,749 INFO L78 Accepts]: Start accepts. Automaton has 39808 states and 111233 transitions. Word has length 231 [2022-02-18 14:12:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:12:47,750 INFO L470 AbstractCegarLoop]: Abstraction has 39808 states and 111233 transitions. [2022-02-18 14:12:47,750 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) [2022-02-18 14:12:47,750 INFO L276 IsEmpty]: Start isEmpty. Operand 39808 states and 111233 transitions. [2022-02-18 14:12:47,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:12:47,786 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:12:47,786 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:12:47,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-02-18 14:12:47,786 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:12:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:12:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1751947262, now seen corresponding path program 12 times [2022-02-18 14:12:47,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:12:47,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57184719] [2022-02-18 14:12:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:12:47,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:12:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:48,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:48,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57184719] [2022-02-18 14:12:48,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57184719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:48,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:48,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:12:48,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108277415] [2022-02-18 14:12:48,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:48,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:12:48,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:48,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:12:48,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:12:48,551 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) [2022-02-18 14:12:51,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:12:51,075 INFO L93 Difference]: Finished difference Result 51129 states and 141861 transitions. [2022-02-18 14:12:51,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-18 14:12:51,075 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 [2022-02-18 14:12:51,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:12:51,179 INFO L225 Difference]: With dead ends: 51129 [2022-02-18 14:12:51,179 INFO L226 Difference]: Without dead ends: 51129 [2022-02-18 14:12:51,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=976, Invalid=3184, Unknown=0, NotChecked=0, Total=4160 [2022-02-18 14:12:51,180 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 [2022-02-18 14:12:51,180 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] [2022-02-18 14:12:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51129 states. [2022-02-18 14:12:51,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51129 to 39792. [2022-02-18 14:12:51,869 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) [2022-02-18 14:12:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-02-18 14:12:51,956 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-02-18 14:12:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:12:51,957 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-02-18 14:12:51,957 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) [2022-02-18 14:12:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-02-18 14:12:51,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:12:51,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:12:51,994 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:12:51,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-02-18 14:12:51,994 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:12:51,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:12:51,994 INFO L85 PathProgramCache]: Analyzing trace with hash -324715772, now seen corresponding path program 13 times [2022-02-18 14:12:51,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:12:51,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241022767] [2022-02-18 14:12:51,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:12:51,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:12:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:12:52,891 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:12:52,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:12:52,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241022767] [2022-02-18 14:12:52,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241022767] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:12:52,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:12:52,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:12:52,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570907584] [2022-02-18 14:12:52,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:12:52,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:12:52,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:12:52,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:12:52,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:12:52,892 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) [2022-02-18 14:13:01,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:01,880 INFO L93 Difference]: Finished difference Result 69884 states and 192760 transitions. [2022-02-18 14:13:01,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-18 14:13:01,881 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 [2022-02-18 14:13:01,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:02,051 INFO L225 Difference]: With dead ends: 69884 [2022-02-18 14:13:02,051 INFO L226 Difference]: Without dead ends: 69884 [2022-02-18 14:13:02,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6913 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=4664, Invalid=18288, Unknown=0, NotChecked=0, Total=22952 [2022-02-18 14:13:02,053 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2237 mSDsluCounter, 9703 mSDsCounter, 0 mSdLazyCounter, 3819 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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 [2022-02-18 14:13:02,053 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] [2022-02-18 14:13:02,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69884 states. [2022-02-18 14:13:02,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69884 to 39796. [2022-02-18 14:13:03,015 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) [2022-02-18 14:13:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111204 transitions. [2022-02-18 14:13:03,121 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111204 transitions. Word has length 231 [2022-02-18 14:13:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:03,121 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111204 transitions. [2022-02-18 14:13:03,121 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) [2022-02-18 14:13:03,121 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111204 transitions. [2022-02-18 14:13:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:03,320 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:03,320 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:03,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-02-18 14:13:03,321 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1495588282, now seen corresponding path program 14 times [2022-02-18 14:13:03,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:03,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3151159] [2022-02-18 14:13:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:03,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:03,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3151159] [2022-02-18 14:13:03,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3151159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:03,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:03,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:13:03,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935206823] [2022-02-18 14:13:03,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:03,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:13:03,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:03,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:13:03,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:13:03,917 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) [2022-02-18 14:13:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:06,243 INFO L93 Difference]: Finished difference Result 51601 states and 143205 transitions. [2022-02-18 14:13:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-18 14:13:06,244 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 [2022-02-18 14:13:06,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:06,462 INFO L225 Difference]: With dead ends: 51601 [2022-02-18 14:13:06,462 INFO L226 Difference]: Without dead ends: 51601 [2022-02-18 14:13:06,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=875, Invalid=2907, Unknown=0, NotChecked=0, Total=3782 [2022-02-18 14:13:06,463 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:13:06,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1966 Valid, 4431 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-18 14:13:06,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51601 states. [2022-02-18 14:13:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51601 to 39792. [2022-02-18 14:13:07,255 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) [2022-02-18 14:13:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-02-18 14:13:07,484 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-02-18 14:13:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:07,484 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-02-18 14:13:07,484 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) [2022-02-18 14:13:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-02-18 14:13:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:07,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:07,517 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:07,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-02-18 14:13:07,518 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:07,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:07,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1109678508, now seen corresponding path program 15 times [2022-02-18 14:13:07,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:07,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261359585] [2022-02-18 14:13:07,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:07,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:08,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:08,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261359585] [2022-02-18 14:13:08,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261359585] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:08,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:08,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:13:08,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605253844] [2022-02-18 14:13:08,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:08,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:13:08,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:08,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:13:08,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:13:08,105 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) [2022-02-18 14:13:16,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:16,375 INFO L93 Difference]: Finished difference Result 70136 states and 193457 transitions. [2022-02-18 14:13:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-18 14:13:16,375 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 [2022-02-18 14:13:16,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:16,539 INFO L225 Difference]: With dead ends: 70136 [2022-02-18 14:13:16,540 INFO L226 Difference]: Without dead ends: 70136 [2022-02-18 14:13:16,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8593 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=5525, Invalid=20881, Unknown=0, NotChecked=0, Total=26406 [2022-02-18 14:13:16,541 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 [2022-02-18 14:13:16,542 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] [2022-02-18 14:13:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70136 states. [2022-02-18 14:13:17,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70136 to 39800. [2022-02-18 14:13:17,549 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) [2022-02-18 14:13:17,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39800 states to 39800 states and 111219 transitions. [2022-02-18 14:13:17,634 INFO L78 Accepts]: Start accepts. Automaton has 39800 states and 111219 transitions. Word has length 231 [2022-02-18 14:13:17,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:17,634 INFO L470 AbstractCegarLoop]: Abstraction has 39800 states and 111219 transitions. [2022-02-18 14:13:17,634 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) [2022-02-18 14:13:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 39800 states and 111219 transitions. [2022-02-18 14:13:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:17,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:17,834 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] [2022-02-18 14:13:17,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-02-18 14:13:17,834 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:17,835 INFO L85 PathProgramCache]: Analyzing trace with hash 710625546, now seen corresponding path program 16 times [2022-02-18 14:13:17,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:17,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902363990] [2022-02-18 14:13:17,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:18,442 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:18,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:18,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902363990] [2022-02-18 14:13:18,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902363990] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:18,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:18,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:13:18,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826382975] [2022-02-18 14:13:18,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:18,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:13:18,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:18,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:13:18,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:13:18,443 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) [2022-02-18 14:13:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:21,123 INFO L93 Difference]: Finished difference Result 52469 states and 145596 transitions. [2022-02-18 14:13:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-18 14:13:21,124 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 [2022-02-18 14:13:21,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:21,230 INFO L225 Difference]: With dead ends: 52469 [2022-02-18 14:13:21,230 INFO L226 Difference]: Without dead ends: 52469 [2022-02-18 14:13:21,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-02-18 14:13:21,231 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1591 mSDsluCounter, 5541 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-18 14:13:21,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 5868 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-18 14:13:21,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52469 states. [2022-02-18 14:13:21,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52469 to 39796. [2022-02-18 14:13:21,877 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) [2022-02-18 14:13:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111200 transitions. [2022-02-18 14:13:22,111 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111200 transitions. Word has length 231 [2022-02-18 14:13:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:22,111 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111200 transitions. [2022-02-18 14:13:22,111 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) [2022-02-18 14:13:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111200 transitions. [2022-02-18 14:13:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:22,146 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:22,146 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:22,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-02-18 14:13:22,146 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:22,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:22,147 INFO L85 PathProgramCache]: Analyzing trace with hash 956737534, now seen corresponding path program 17 times [2022-02-18 14:13:22,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:22,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236527453] [2022-02-18 14:13:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:22,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:22,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:22,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236527453] [2022-02-18 14:13:22,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236527453] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:22,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:22,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-18 14:13:22,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895288279] [2022-02-18 14:13:22,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:22,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-18 14:13:22,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-18 14:13:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-02-18 14:13:22,811 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) [2022-02-18 14:13:29,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:29,697 INFO L93 Difference]: Finished difference Result 53805 states and 148963 transitions. [2022-02-18 14:13:29,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-18 14:13:29,697 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 [2022-02-18 14:13:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:29,877 INFO L225 Difference]: With dead ends: 53805 [2022-02-18 14:13:29,877 INFO L226 Difference]: Without dead ends: 53805 [2022-02-18 14:13:29,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5994 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4361, Invalid=15661, Unknown=0, NotChecked=0, Total=20022 [2022-02-18 14:13:29,878 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:13:29,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2061 Valid, 9952 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3682 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:13:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53805 states. [2022-02-18 14:13:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53805 to 39792. [2022-02-18 14:13:30,530 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) [2022-02-18 14:13:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-02-18 14:13:30,614 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-02-18 14:13:30,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:30,614 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-02-18 14:13:30,614 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) [2022-02-18 14:13:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-02-18 14:13:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:30,650 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:30,651 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:30,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-02-18 14:13:30,651 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:30,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash 245365692, now seen corresponding path program 18 times [2022-02-18 14:13:30,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:30,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435074476] [2022-02-18 14:13:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:31,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:31,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435074476] [2022-02-18 14:13:31,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435074476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:31,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:31,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:13:31,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367987300] [2022-02-18 14:13:31,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:31,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:13:31,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:31,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:13:31,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:13:31,255 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) [2022-02-18 14:13:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:37,485 INFO L93 Difference]: Finished difference Result 62322 states and 172096 transitions. [2022-02-18 14:13:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-18 14:13:37,485 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 [2022-02-18 14:13:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:37,602 INFO L225 Difference]: With dead ends: 62322 [2022-02-18 14:13:37,603 INFO L226 Difference]: Without dead ends: 61673 [2022-02-18 14:13:37,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5769 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=4019, Invalid=16287, Unknown=0, NotChecked=0, Total=20306 [2022-02-18 14:13:37,604 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:13:37,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2602 Valid, 11847 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4121 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-18 14:13:37,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61673 states. [2022-02-18 14:13:38,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61673 to 40464. [2022-02-18 14:13:38,487 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) [2022-02-18 14:13:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40464 states to 40464 states and 113149 transitions. [2022-02-18 14:13:38,572 INFO L78 Accepts]: Start accepts. Automaton has 40464 states and 113149 transitions. Word has length 231 [2022-02-18 14:13:38,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:38,572 INFO L470 AbstractCegarLoop]: Abstraction has 40464 states and 113149 transitions. [2022-02-18 14:13:38,572 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) [2022-02-18 14:13:38,572 INFO L276 IsEmpty]: Start isEmpty. Operand 40464 states and 113149 transitions. [2022-02-18 14:13:38,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:38,608 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:38,608 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:38,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-02-18 14:13:38,608 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:38,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash 933215832, now seen corresponding path program 19 times [2022-02-18 14:13:38,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:38,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200382111] [2022-02-18 14:13:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:39,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:39,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200382111] [2022-02-18 14:13:39,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200382111] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:39,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:39,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:13:39,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941727266] [2022-02-18 14:13:39,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:39,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:13:39,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:39,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:13:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:13:39,195 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) [2022-02-18 14:13:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:45,660 INFO L93 Difference]: Finished difference Result 80484 states and 221756 transitions. [2022-02-18 14:13:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-02-18 14:13:45,661 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 [2022-02-18 14:13:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:45,810 INFO L225 Difference]: With dead ends: 80484 [2022-02-18 14:13:45,810 INFO L226 Difference]: Without dead ends: 80484 [2022-02-18 14:13:45,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6554 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4399, Invalid=17951, Unknown=0, NotChecked=0, Total=22350 [2022-02-18 14:13:45,811 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 2738 mSDsluCounter, 8748 mSDsCounter, 0 mSdLazyCounter, 3470 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:13:45,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2738 Valid, 9296 Invalid, 3497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3470 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-18 14:13:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80484 states. [2022-02-18 14:13:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80484 to 40472. [2022-02-18 14:13:46,803 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) [2022-02-18 14:13:46,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113183 transitions. [2022-02-18 14:13:46,888 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113183 transitions. Word has length 231 [2022-02-18 14:13:46,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:46,889 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113183 transitions. [2022-02-18 14:13:46,889 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) [2022-02-18 14:13:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113183 transitions. [2022-02-18 14:13:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:46,926 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:46,926 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:46,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-02-18 14:13:46,927 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:46,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:46,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1541447410, now seen corresponding path program 20 times [2022-02-18 14:13:46,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:46,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643741562] [2022-02-18 14:13:46,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:46,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:47,735 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:47,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:47,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643741562] [2022-02-18 14:13:47,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643741562] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:47,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:47,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:13:47,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852134419] [2022-02-18 14:13:47,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:47,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:13:47,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:47,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:13:47,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:13:47,737 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) [2022-02-18 14:13:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:54,269 INFO L93 Difference]: Finished difference Result 63265 states and 175101 transitions. [2022-02-18 14:13:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-18 14:13:54,270 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 [2022-02-18 14:13:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:54,385 INFO L225 Difference]: With dead ends: 63265 [2022-02-18 14:13:54,385 INFO L226 Difference]: Without dead ends: 63265 [2022-02-18 14:13:54,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6455 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4677, Invalid=17673, Unknown=0, NotChecked=0, Total=22350 [2022-02-18 14:13:54,386 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:13:54,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2666 Valid, 10105 Invalid, 3707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-18 14:13:54,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63265 states. [2022-02-18 14:13:55,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63265 to 40468. [2022-02-18 14:13:55,261 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) [2022-02-18 14:13:55,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40468 states to 40468 states and 113164 transitions. [2022-02-18 14:13:55,344 INFO L78 Accepts]: Start accepts. Automaton has 40468 states and 113164 transitions. Word has length 231 [2022-02-18 14:13:55,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:55,344 INFO L470 AbstractCegarLoop]: Abstraction has 40468 states and 113164 transitions. [2022-02-18 14:13:55,344 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) [2022-02-18 14:13:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand 40468 states and 113164 transitions. [2022-02-18 14:13:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:55,380 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:55,380 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:55,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-02-18 14:13:55,380 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:55,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1295335422, now seen corresponding path program 21 times [2022-02-18 14:13:55,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:55,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738028366] [2022-02-18 14:13:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:55,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:55,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:55,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738028366] [2022-02-18 14:13:55,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738028366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:55,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:55,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:13:55,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794052329] [2022-02-18 14:13:55,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:55,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:13:55,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:13:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:13:55,844 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) [2022-02-18 14:13:58,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:13:58,075 INFO L93 Difference]: Finished difference Result 61451 states and 170167 transitions. [2022-02-18 14:13:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:13:58,075 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 [2022-02-18 14:13:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:13:58,196 INFO L225 Difference]: With dead ends: 61451 [2022-02-18 14:13:58,196 INFO L226 Difference]: Without dead ends: 61451 [2022-02-18 14:13:58,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=928, Invalid=2978, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:13:58,197 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1815 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:13:58,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1815 Valid, 4917 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-18 14:13:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61451 states. [2022-02-18 14:13:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61451 to 40416. [2022-02-18 14:13:58,908 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) [2022-02-18 14:13:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40416 states to 40416 states and 113001 transitions. [2022-02-18 14:13:59,153 INFO L78 Accepts]: Start accepts. Automaton has 40416 states and 113001 transitions. Word has length 231 [2022-02-18 14:13:59,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:13:59,154 INFO L470 AbstractCegarLoop]: Abstraction has 40416 states and 113001 transitions. [2022-02-18 14:13:59,154 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) [2022-02-18 14:13:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 40416 states and 113001 transitions. [2022-02-18 14:13:59,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:13:59,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:13:59,192 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:13:59,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-02-18 14:13:59,193 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:13:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:13:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1209742604, now seen corresponding path program 22 times [2022-02-18 14:13:59,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:13:59,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610994640] [2022-02-18 14:13:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:13:59,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:13:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:13:59,848 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:13:59,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:13:59,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610994640] [2022-02-18 14:13:59,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610994640] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:13:59,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:13:59,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:13:59,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152505214] [2022-02-18 14:13:59,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:13:59,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:13:59,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:13:59,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:13:59,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:13:59,849 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) [2022-02-18 14:14:09,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:14:09,552 INFO L93 Difference]: Finished difference Result 75697 states and 208811 transitions. [2022-02-18 14:14:09,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-02-18 14:14:09,553 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 [2022-02-18 14:14:09,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:14:09,694 INFO L225 Difference]: With dead ends: 75697 [2022-02-18 14:14:09,694 INFO L226 Difference]: Without dead ends: 75169 [2022-02-18 14:14:09,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9203 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=5934, Invalid=22796, Unknown=0, NotChecked=0, Total=28730 [2022-02-18 14:14:09,695 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-18 14:14:09,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2702 Valid, 9887 Invalid, 3864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-18 14:14:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75169 states. [2022-02-18 14:14:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75169 to 40440. [2022-02-18 14:14:10,531 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) [2022-02-18 14:14:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40440 states to 40440 states and 113071 transitions. [2022-02-18 14:14:10,769 INFO L78 Accepts]: Start accepts. Automaton has 40440 states and 113071 transitions. Word has length 231 [2022-02-18 14:14:10,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:14:10,769 INFO L470 AbstractCegarLoop]: Abstraction has 40440 states and 113071 transitions. [2022-02-18 14:14:10,769 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) [2022-02-18 14:14:10,769 INFO L276 IsEmpty]: Start isEmpty. Operand 40440 states and 113071 transitions. [2022-02-18 14:14:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:14:10,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:14:10,806 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:14:10,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-02-18 14:14:10,807 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:14:10,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:14:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash 62217422, now seen corresponding path program 23 times [2022-02-18 14:14:10,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:14:10,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585034659] [2022-02-18 14:14:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:14:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:14:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:14:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:14:11,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:14:11,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585034659] [2022-02-18 14:14:11,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585034659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:14:11,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:14:11,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:14:11,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099157124] [2022-02-18 14:14:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:14:11,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:14:11,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:14:11,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:14:11,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:14:11,433 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) [2022-02-18 14:14:19,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:14:19,093 INFO L93 Difference]: Finished difference Result 77464 states and 213962 transitions. [2022-02-18 14:14:19,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-02-18 14:14:19,094 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 [2022-02-18 14:14:19,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:14:19,240 INFO L225 Difference]: With dead ends: 77464 [2022-02-18 14:14:19,240 INFO L226 Difference]: Without dead ends: 76911 [2022-02-18 14:14:19,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9769 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=6262, Invalid=22808, Unknown=0, NotChecked=0, Total=29070 [2022-02-18 14:14:19,241 INFO L933 BasicCegarLoop]: 566 mSDtfsCounter, 2718 mSDsluCounter, 7128 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:14:19,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2718 Valid, 7569 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-18 14:14:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76911 states. [2022-02-18 14:14:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76911 to 40496. [2022-02-18 14:14:20,096 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) [2022-02-18 14:14:20,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40496 states to 40496 states and 113225 transitions. [2022-02-18 14:14:20,180 INFO L78 Accepts]: Start accepts. Automaton has 40496 states and 113225 transitions. Word has length 231 [2022-02-18 14:14:20,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:14:20,180 INFO L470 AbstractCegarLoop]: Abstraction has 40496 states and 113225 transitions. [2022-02-18 14:14:20,181 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) [2022-02-18 14:14:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 40496 states and 113225 transitions. [2022-02-18 14:14:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:14:20,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:14:20,218 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, 1, 1, 1, 1] [2022-02-18 14:14:20,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-02-18 14:14:20,218 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:14:20,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:14:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1866716852, now seen corresponding path program 24 times [2022-02-18 14:14:20,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:14:20,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224602172] [2022-02-18 14:14:20,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:14:20,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:14:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:14:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:14:20,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:14:20,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224602172] [2022-02-18 14:14:20,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224602172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:14:20,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:14:20,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:14:20,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090356574] [2022-02-18 14:14:20,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:14:20,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:14:20,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:14:20,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:14:20,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:14:20,794 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) [2022-02-18 14:14:26,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:14:26,455 INFO L93 Difference]: Finished difference Result 88670 states and 246537 transitions. [2022-02-18 14:14:26,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-18 14:14:26,456 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 [2022-02-18 14:14:26,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:14:26,755 INFO L225 Difference]: With dead ends: 88670 [2022-02-18 14:14:26,756 INFO L226 Difference]: Without dead ends: 88670 [2022-02-18 14:14:26,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4714 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=3611, Invalid=12901, Unknown=0, NotChecked=0, Total=16512 [2022-02-18 14:14:26,757 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 2673 mSDsluCounter, 6416 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2673 SdHoareTripleChecker+Valid, 6835 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:14:26,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2673 Valid, 6835 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-18 14:14:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88670 states. [2022-02-18 14:14:27,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88670 to 40424. [2022-02-18 14:14:27,791 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) [2022-02-18 14:14:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-02-18 14:14:27,888 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-02-18 14:14:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:14:27,889 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-02-18 14:14:27,889 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) [2022-02-18 14:14:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-02-18 14:14:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:14:27,927 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:14:27,927 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:14:27,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-02-18 14:14:27,928 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:14:27,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:14:27,928 INFO L85 PathProgramCache]: Analyzing trace with hash 351587410, now seen corresponding path program 25 times [2022-02-18 14:14:27,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:14:27,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562557304] [2022-02-18 14:14:27,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:14:27,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:14:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:14:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:14:28,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:14:28,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562557304] [2022-02-18 14:14:28,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562557304] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:14:28,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:14:28,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:14:28,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976295977] [2022-02-18 14:14:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:14:28,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:14:28,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:14:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:14:28,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:14:28,486 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) [2022-02-18 14:14:34,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:14:34,690 INFO L93 Difference]: Finished difference Result 83368 states and 229967 transitions. [2022-02-18 14:14:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-18 14:14:34,690 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 [2022-02-18 14:14:34,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:14:34,846 INFO L225 Difference]: With dead ends: 83368 [2022-02-18 14:14:34,846 INFO L226 Difference]: Without dead ends: 83368 [2022-02-18 14:14:34,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7741 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5035, Invalid=19457, Unknown=0, NotChecked=0, Total=24492 [2022-02-18 14:14:34,847 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2530 mSDsluCounter, 8063 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:14:34,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2530 Valid, 8589 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:14:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83368 states. [2022-02-18 14:14:35,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83368 to 40428. [2022-02-18 14:14:35,860 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) [2022-02-18 14:14:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-02-18 14:14:35,950 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-02-18 14:14:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:14:35,950 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-02-18 14:14:35,950 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) [2022-02-18 14:14:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-02-18 14:14:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:14:35,992 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:14:35,993 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:14:35,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-02-18 14:14:35,993 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:14:35,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:14:35,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2123075832, now seen corresponding path program 26 times [2022-02-18 14:14:35,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:14:35,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918582028] [2022-02-18 14:14:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:14:35,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:14:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:14:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:14:36,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:14:36,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918582028] [2022-02-18 14:14:36,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918582028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:14:36,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:14:36,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:14:36,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696879720] [2022-02-18 14:14:36,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:14:36,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:14:36,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:14:36,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:14:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:14:36,912 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) [2022-02-18 14:14:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:14:44,151 INFO L93 Difference]: Finished difference Result 64249 states and 177999 transitions. [2022-02-18 14:14:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-18 14:14:44,152 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 [2022-02-18 14:14:44,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:14:44,279 INFO L225 Difference]: With dead ends: 64249 [2022-02-18 14:14:44,279 INFO L226 Difference]: Without dead ends: 64249 [2022-02-18 14:14:44,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7970 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=5464, Invalid=20618, Unknown=0, NotChecked=0, Total=26082 [2022-02-18 14:14:44,280 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 2515 mSDsluCounter, 9587 mSDsCounter, 0 mSdLazyCounter, 3733 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:14:44,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2515 Valid, 10105 Invalid, 3745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3733 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-18 14:14:44,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64249 states. [2022-02-18 14:14:44,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64249 to 40420. [2022-02-18 14:14:45,050 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) [2022-02-18 14:14:45,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40420 states to 40420 states and 113012 transitions. [2022-02-18 14:14:45,135 INFO L78 Accepts]: Start accepts. Automaton has 40420 states and 113012 transitions. Word has length 231 [2022-02-18 14:14:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:14:45,135 INFO L470 AbstractCegarLoop]: Abstraction has 40420 states and 113012 transitions. [2022-02-18 14:14:45,135 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) [2022-02-18 14:14:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 40420 states and 113012 transitions. [2022-02-18 14:14:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:14:45,172 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:14:45,172 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:14:45,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-02-18 14:14:45,172 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:14:45,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:14:45,173 INFO L85 PathProgramCache]: Analyzing trace with hash -433375326, now seen corresponding path program 27 times [2022-02-18 14:14:45,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:14:45,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301986806] [2022-02-18 14:14:45,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:14:45,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:14:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:14:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:14:45,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:14:45,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301986806] [2022-02-18 14:14:45,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301986806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:14:45,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:14:45,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-18 14:14:45,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344899598] [2022-02-18 14:14:45,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:14:45,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 14:14:45,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:14:45,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 14:14:45,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:14:45,665 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) [2022-02-18 14:14:47,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:14:47,780 INFO L93 Difference]: Finished difference Result 63408 states and 175899 transitions. [2022-02-18 14:14:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-18 14:14:47,780 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 [2022-02-18 14:14:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:14:47,901 INFO L225 Difference]: With dead ends: 63408 [2022-02-18 14:14:47,901 INFO L226 Difference]: Without dead ends: 63408 [2022-02-18 14:14:47,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1046, Invalid=3244, Unknown=0, NotChecked=0, Total=4290 [2022-02-18 14:14:47,901 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1991 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-18 14:14:47,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1991 Valid, 4267 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-18 14:14:47,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63408 states. [2022-02-18 14:14:48,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63408 to 40428. [2022-02-18 14:14:48,619 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) [2022-02-18 14:14:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-02-18 14:14:48,701 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-02-18 14:14:48,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:14:48,701 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-02-18 14:14:48,701 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) [2022-02-18 14:14:48,701 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-02-18 14:14:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:14:48,950 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:14:48,951 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:14:48,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-02-18 14:14:48,951 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:14:48,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:14:48,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1386928728, now seen corresponding path program 28 times [2022-02-18 14:14:48,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:14:48,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314527869] [2022-02-18 14:14:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:14:48,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:14:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:14:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:14:49,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:14:49,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314527869] [2022-02-18 14:14:49,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314527869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:14:49,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:14:49,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-18 14:14:49,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778457516] [2022-02-18 14:14:49,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:14:49,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-18 14:14:49,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:14:49,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-18 14:14:49,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-02-18 14:14:49,497 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) [2022-02-18 14:14:55,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:14:55,606 INFO L93 Difference]: Finished difference Result 65693 states and 182026 transitions. [2022-02-18 14:14:55,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-02-18 14:14:55,606 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 [2022-02-18 14:14:55,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:14:55,729 INFO L225 Difference]: With dead ends: 65693 [2022-02-18 14:14:55,729 INFO L226 Difference]: Without dead ends: 65693 [2022-02-18 14:14:55,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8306 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5687, Invalid=20719, Unknown=0, NotChecked=0, Total=26406 [2022-02-18 14:14:55,730 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 2566 mSDsluCounter, 7918 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:14:55,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2566 Valid, 8450 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-18 14:14:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65693 states. [2022-02-18 14:14:56,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65693 to 40424. [2022-02-18 14:14:56,575 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) [2022-02-18 14:14:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-02-18 14:14:56,658 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-02-18 14:14:56,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:14:56,658 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-02-18 14:14:56,658 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) [2022-02-18 14:14:56,659 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-02-18 14:14:56,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:14:56,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:14:56,695 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:14:56,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-02-18 14:14:56,695 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:14:56,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:14:56,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1633040716, now seen corresponding path program 29 times [2022-02-18 14:14:56,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:14:56,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543288985] [2022-02-18 14:14:56,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:14:56,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:14:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:14:57,442 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:14:57,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:14:57,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543288985] [2022-02-18 14:14:57,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543288985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:14:57,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:14:57,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-18 14:14:57,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506513683] [2022-02-18 14:14:57,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:14:57,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-18 14:14:57,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:14:57,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-18 14:14:57,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-02-18 14:14:57,443 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) [2022-02-18 14:15:04,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:15:04,225 INFO L93 Difference]: Finished difference Result 64532 states and 178605 transitions. [2022-02-18 14:15:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-02-18 14:15:04,226 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 [2022-02-18 14:15:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:15:04,348 INFO L225 Difference]: With dead ends: 64532 [2022-02-18 14:15:04,348 INFO L226 Difference]: Without dead ends: 64532 [2022-02-18 14:15:04,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9010 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=5961, Invalid=22095, Unknown=0, NotChecked=0, Total=28056 [2022-02-18 14:15:04,349 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2410 mSDsluCounter, 9288 mSDsCounter, 0 mSdLazyCounter, 3559 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:15:04,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2410 Valid, 9777 Invalid, 3570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3559 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-18 14:15:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64532 states. [2022-02-18 14:15:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64532 to 40368. [2022-02-18 14:15:05,297 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) [2022-02-18 14:15:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40368 states to 40368 states and 112865 transitions. [2022-02-18 14:15:05,388 INFO L78 Accepts]: Start accepts. Automaton has 40368 states and 112865 transitions. Word has length 231 [2022-02-18 14:15:05,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:15:05,388 INFO L470 AbstractCegarLoop]: Abstraction has 40368 states and 112865 transitions. [2022-02-18 14:15:05,388 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) [2022-02-18 14:15:05,388 INFO L276 IsEmpty]: Start isEmpty. Operand 40368 states and 112865 transitions. [2022-02-18 14:15:05,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:15:05,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:15:05,428 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:15:05,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-02-18 14:15:05,428 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:15:05,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:15:05,428 INFO L85 PathProgramCache]: Analyzing trace with hash 222172088, now seen corresponding path program 30 times [2022-02-18 14:15:05,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:15:05,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029138564] [2022-02-18 14:15:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:15:05,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:15:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:15:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:15:05,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:15:05,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029138564] [2022-02-18 14:15:05,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029138564] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:15:05,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:15:05,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:15:05,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822872666] [2022-02-18 14:15:05,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:15:05,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:15:05,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:15:05,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:15:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:15:05,977 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) [2022-02-18 14:15:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:15:13,549 INFO L93 Difference]: Finished difference Result 70553 states and 194269 transitions. [2022-02-18 14:15:13,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-02-18 14:15:13,549 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 [2022-02-18 14:15:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:15:13,682 INFO L225 Difference]: With dead ends: 70553 [2022-02-18 14:15:13,682 INFO L226 Difference]: Without dead ends: 70081 [2022-02-18 14:15:13,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8163 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4981, Invalid=20779, Unknown=0, NotChecked=0, Total=25760 [2022-02-18 14:15:13,683 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 [2022-02-18 14:15:13,683 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] [2022-02-18 14:15:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70081 states. [2022-02-18 14:15:14,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70081 to 40620. [2022-02-18 14:15:14,633 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) [2022-02-18 14:15:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40620 states to 40620 states and 113614 transitions. [2022-02-18 14:15:14,718 INFO L78 Accepts]: Start accepts. Automaton has 40620 states and 113614 transitions. Word has length 231 [2022-02-18 14:15:14,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:15:14,718 INFO L470 AbstractCegarLoop]: Abstraction has 40620 states and 113614 transitions. [2022-02-18 14:15:14,719 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) [2022-02-18 14:15:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand 40620 states and 113614 transitions. [2022-02-18 14:15:14,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:15:14,758 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:15:14,758 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:15:14,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-02-18 14:15:14,758 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:15:14,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:15:14,758 INFO L85 PathProgramCache]: Analyzing trace with hash -925353094, now seen corresponding path program 31 times [2022-02-18 14:15:14,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:15:14,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697746592] [2022-02-18 14:15:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:15:14,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:15:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:15:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:15:15,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:15:15,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697746592] [2022-02-18 14:15:15,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697746592] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:15:15,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:15:15,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:15:15,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084656895] [2022-02-18 14:15:15,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:15:15,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:15:15,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:15:15,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:15:15,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:15:15,460 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) [2022-02-18 14:15:26,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:15:26,447 INFO L93 Difference]: Finished difference Result 74359 states and 204463 transitions. [2022-02-18 14:15:26,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-02-18 14:15:26,447 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 [2022-02-18 14:15:26,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:15:26,610 INFO L225 Difference]: With dead ends: 74359 [2022-02-18 14:15:26,610 INFO L226 Difference]: Without dead ends: 73330 [2022-02-18 14:15:26,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16609 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=7995, Invalid=39747, Unknown=0, NotChecked=0, Total=47742 [2022-02-18 14:15:26,612 INFO L933 BasicCegarLoop]: 807 mSDtfsCounter, 3755 mSDsluCounter, 11056 mSDsCounter, 0 mSdLazyCounter, 4803 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:15:26,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3755 Valid, 11634 Invalid, 4841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4803 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-02-18 14:15:26,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73330 states. [2022-02-18 14:15:27,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73330 to 40516. [2022-02-18 14:15:27,506 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) [2022-02-18 14:15:27,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40516 states to 40516 states and 113284 transitions. [2022-02-18 14:15:27,587 INFO L78 Accepts]: Start accepts. Automaton has 40516 states and 113284 transitions. Word has length 231 [2022-02-18 14:15:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:15:27,587 INFO L470 AbstractCegarLoop]: Abstraction has 40516 states and 113284 transitions. [2022-02-18 14:15:27,587 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) [2022-02-18 14:15:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 40516 states and 113284 transitions. [2022-02-18 14:15:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:15:27,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:15:27,624 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:15:27,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-02-18 14:15:27,624 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:15:27,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:15:27,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1440679928, now seen corresponding path program 32 times [2022-02-18 14:15:27,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:15:27,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785571905] [2022-02-18 14:15:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:15:27,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:15:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:15:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:15:28,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:15:28,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785571905] [2022-02-18 14:15:28,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785571905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:15:28,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:15:28,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:15:28,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549897938] [2022-02-18 14:15:28,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:15:28,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:15:28,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:15:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:15:28,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:15:28,202 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) [2022-02-18 14:15:29,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:15:29,198 INFO L93 Difference]: Finished difference Result 56312 states and 155881 transitions. [2022-02-18 14:15:29,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-18 14:15:29,198 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 [2022-02-18 14:15:29,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:15:29,464 INFO L225 Difference]: With dead ends: 56312 [2022-02-18 14:15:29,465 INFO L226 Difference]: Without dead ends: 56312 [2022-02-18 14:15:29,465 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 [2022-02-18 14:15:29,465 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 [2022-02-18 14:15:29,465 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] [2022-02-18 14:15:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56312 states. [2022-02-18 14:15:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56312 to 40520. [2022-02-18 14:15:30,120 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) [2022-02-18 14:15:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-02-18 14:15:30,203 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-02-18 14:15:30,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:15:30,204 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-02-18 14:15:30,204 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) [2022-02-18 14:15:30,204 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-02-18 14:15:30,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:15:30,240 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:15:30,240 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, 1, 1, 1, 1] [2022-02-18 14:15:30,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-02-18 14:15:30,241 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:15:30,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:15:30,241 INFO L85 PathProgramCache]: Analyzing trace with hash 544713298, now seen corresponding path program 33 times [2022-02-18 14:15:30,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:15:30,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637182708] [2022-02-18 14:15:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:15:30,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:15:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:15:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:15:30,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:15:30,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637182708] [2022-02-18 14:15:30,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637182708] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:15:30,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:15:30,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:15:30,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561804182] [2022-02-18 14:15:30,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:15:30,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:15:30,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:15:30,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:15:30,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:15:30,977 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) [2022-02-18 14:15:38,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:15:38,494 INFO L93 Difference]: Finished difference Result 71077 states and 195830 transitions. [2022-02-18 14:15:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-18 14:15:38,495 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 [2022-02-18 14:15:38,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:15:38,630 INFO L225 Difference]: With dead ends: 71077 [2022-02-18 14:15:38,630 INFO L226 Difference]: Without dead ends: 70605 [2022-02-18 14:15:38,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8484 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=5483, Invalid=20923, Unknown=0, NotChecked=0, Total=26406 [2022-02-18 14:15:38,632 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 2616 mSDsluCounter, 8864 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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 [2022-02-18 14:15:38,632 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] [2022-02-18 14:15:38,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70605 states. [2022-02-18 14:15:39,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70605 to 40540. [2022-02-18 14:15:39,519 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) [2022-02-18 14:15:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40540 states to 40540 states and 113350 transitions. [2022-02-18 14:15:39,610 INFO L78 Accepts]: Start accepts. Automaton has 40540 states and 113350 transitions. Word has length 231 [2022-02-18 14:15:39,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:15:39,610 INFO L470 AbstractCegarLoop]: Abstraction has 40540 states and 113350 transitions. [2022-02-18 14:15:39,610 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) [2022-02-18 14:15:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 40540 states and 113350 transitions. [2022-02-18 14:15:39,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:15:39,647 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:15:39,647 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:15:39,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-02-18 14:15:39,647 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:15:39,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:15:39,648 INFO L85 PathProgramCache]: Analyzing trace with hash -602811884, now seen corresponding path program 34 times [2022-02-18 14:15:39,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:15:39,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829805652] [2022-02-18 14:15:39,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:15:39,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:15:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:15:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:15:40,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:15:40,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829805652] [2022-02-18 14:15:40,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829805652] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:15:40,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:15:40,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:15:40,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122021353] [2022-02-18 14:15:40,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:15:40,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:15:40,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:15:40,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:15:40,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:15:40,492 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) [2022-02-18 14:15:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:15:50,171 INFO L93 Difference]: Finished difference Result 72360 states and 199618 transitions. [2022-02-18 14:15:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-02-18 14:15:50,171 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 [2022-02-18 14:15:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:15:50,314 INFO L225 Difference]: With dead ends: 72360 [2022-02-18 14:15:50,314 INFO L226 Difference]: Without dead ends: 71835 [2022-02-18 14:15:50,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11836 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=7203, Invalid=28329, Unknown=0, NotChecked=0, Total=35532 [2022-02-18 14:15:50,316 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 2997 mSDsluCounter, 9333 mSDsCounter, 0 mSdLazyCounter, 4052 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-18 14:15:50,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2997 Valid, 9829 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 4052 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-18 14:15:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71835 states. [2022-02-18 14:15:51,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71835 to 40596. [2022-02-18 14:15:51,235 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) [2022-02-18 14:15:51,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40596 states to 40596 states and 113504 transitions. [2022-02-18 14:15:51,330 INFO L78 Accepts]: Start accepts. Automaton has 40596 states and 113504 transitions. Word has length 231 [2022-02-18 14:15:51,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:15:51,331 INFO L470 AbstractCegarLoop]: Abstraction has 40596 states and 113504 transitions. [2022-02-18 14:15:51,331 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) [2022-02-18 14:15:51,331 INFO L276 IsEmpty]: Start isEmpty. Operand 40596 states and 113504 transitions. [2022-02-18 14:15:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:15:51,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:15:51,607 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:15:51,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-02-18 14:15:51,608 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:15:51,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:15:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1763221138, now seen corresponding path program 35 times [2022-02-18 14:15:51,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:15:51,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168192744] [2022-02-18 14:15:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:15:51,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:15:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:15:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:15:52,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:15:52,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168192744] [2022-02-18 14:15:52,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168192744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:15:52,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:15:52,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:15:52,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816813990] [2022-02-18 14:15:52,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:15:52,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:15:52,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:15:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:15:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:15:52,243 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) [2022-02-18 14:16:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:01,192 INFO L93 Difference]: Finished difference Result 85678 states and 237922 transitions. [2022-02-18 14:16:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-02-18 14:16:01,193 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 [2022-02-18 14:16:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:01,375 INFO L225 Difference]: With dead ends: 85678 [2022-02-18 14:16:01,375 INFO L226 Difference]: Without dead ends: 85678 [2022-02-18 14:16:01,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10426 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=6416, Invalid=25090, Unknown=0, NotChecked=0, Total=31506 [2022-02-18 14:16:01,376 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 2865 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 3831 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 9734 SdHoareTripleChecker+Invalid, 3855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:16:01,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2865 Valid, 9734 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3831 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-18 14:16:01,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85678 states. [2022-02-18 14:16:02,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85678 to 40524. [2022-02-18 14:16:02,606 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) [2022-02-18 14:16:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113306 transitions. [2022-02-18 14:16:02,699 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113306 transitions. Word has length 231 [2022-02-18 14:16:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:02,699 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113306 transitions. [2022-02-18 14:16:02,699 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) [2022-02-18 14:16:02,699 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113306 transitions. [2022-02-18 14:16:02,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:02,739 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:02,739 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:02,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-02-18 14:16:02,739 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:02,740 INFO L85 PathProgramCache]: Analyzing trace with hash -313441896, now seen corresponding path program 36 times [2022-02-18 14:16:02,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:02,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389109394] [2022-02-18 14:16:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:03,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:03,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389109394] [2022-02-18 14:16:03,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389109394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:03,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:03,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:16:03,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637896981] [2022-02-18 14:16:03,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:03,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:16:03,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:03,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:16:03,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:16:03,254 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) [2022-02-18 14:16:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:09,564 INFO L93 Difference]: Finished difference Result 76392 states and 210307 transitions. [2022-02-18 14:16:09,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-18 14:16:09,564 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 [2022-02-18 14:16:09,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:09,718 INFO L225 Difference]: With dead ends: 76392 [2022-02-18 14:16:09,718 INFO L226 Difference]: Without dead ends: 76392 [2022-02-18 14:16:09,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6116 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4174, Invalid=16418, Unknown=0, NotChecked=0, Total=20592 [2022-02-18 14:16:09,719 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 2418 mSDsluCounter, 9907 mSDsCounter, 0 mSdLazyCounter, 4125 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:16:09,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2418 Valid, 10368 Invalid, 4144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4125 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-18 14:16:09,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76392 states. [2022-02-18 14:16:10,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76392 to 40528. [2022-02-18 14:16:10,829 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) [2022-02-18 14:16:10,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113325 transitions. [2022-02-18 14:16:10,917 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113325 transitions. Word has length 231 [2022-02-18 14:16:10,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:10,917 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113325 transitions. [2022-02-18 14:16:10,918 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) [2022-02-18 14:16:10,918 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113325 transitions. [2022-02-18 14:16:10,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:10,956 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:10,957 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:10,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-02-18 14:16:10,957 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:10,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:10,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1506862158, now seen corresponding path program 37 times [2022-02-18 14:16:10,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:10,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655379672] [2022-02-18 14:16:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:10,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:11,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:11,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655379672] [2022-02-18 14:16:11,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655379672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:11,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:11,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-18 14:16:11,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938782815] [2022-02-18 14:16:11,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:11,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-18 14:16:11,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:11,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-18 14:16:11,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2022-02-18 14:16:11,315 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) [2022-02-18 14:16:12,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:12,469 INFO L93 Difference]: Finished difference Result 56780 states and 157222 transitions. [2022-02-18 14:16:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-18 14:16:12,469 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 [2022-02-18 14:16:12,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:12,587 INFO L225 Difference]: With dead ends: 56780 [2022-02-18 14:16:12,587 INFO L226 Difference]: Without dead ends: 56780 [2022-02-18 14:16:12,587 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 [2022-02-18 14:16:12,587 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1450 mSDsluCounter, 3636 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-02-18 14:16:12,587 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] [2022-02-18 14:16:12,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56780 states. [2022-02-18 14:16:13,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56780 to 40520. [2022-02-18 14:16:13,533 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) [2022-02-18 14:16:13,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-02-18 14:16:13,639 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-02-18 14:16:13,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:13,639 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-02-18 14:16:13,639 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) [2022-02-18 14:16:13,640 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-02-18 14:16:13,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:13,679 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:13,679 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:13,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-02-18 14:16:13,679 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:13,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:13,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1168755266, now seen corresponding path program 38 times [2022-02-18 14:16:13,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:13,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900505225] [2022-02-18 14:16:13,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:13,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:14,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:14,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900505225] [2022-02-18 14:16:14,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900505225] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:14,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:14,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:16:14,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150618484] [2022-02-18 14:16:14,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:14,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:16:14,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:14,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:16:14,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:16:14,446 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) [2022-02-18 14:16:25,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:25,620 INFO L93 Difference]: Finished difference Result 71429 states and 196822 transitions. [2022-02-18 14:16:25,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2022-02-18 14:16:25,621 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 [2022-02-18 14:16:25,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:25,766 INFO L225 Difference]: With dead ends: 71429 [2022-02-18 14:16:25,766 INFO L226 Difference]: Without dead ends: 70957 [2022-02-18 14:16:25,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14015 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=8003, Invalid=32599, Unknown=0, NotChecked=0, Total=40602 [2022-02-18 14:16:25,768 INFO L933 BasicCegarLoop]: 734 mSDtfsCounter, 2801 mSDsluCounter, 10429 mSDsCounter, 0 mSdLazyCounter, 4443 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:16:25,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2801 Valid, 10928 Invalid, 4464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4443 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-18 14:16:25,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70957 states. [2022-02-18 14:16:26,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70957 to 40544. [2022-02-18 14:16:26,686 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) [2022-02-18 14:16:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40544 states to 40544 states and 113361 transitions. [2022-02-18 14:16:26,774 INFO L78 Accepts]: Start accepts. Automaton has 40544 states and 113361 transitions. Word has length 231 [2022-02-18 14:16:26,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:26,774 INFO L470 AbstractCegarLoop]: Abstraction has 40544 states and 113361 transitions. [2022-02-18 14:16:26,774 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) [2022-02-18 14:16:26,774 INFO L276 IsEmpty]: Start isEmpty. Operand 40544 states and 113361 transitions. [2022-02-18 14:16:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:26,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:26,815 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:26,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-02-18 14:16:26,815 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:26,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1978686848, now seen corresponding path program 39 times [2022-02-18 14:16:26,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:26,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321766295] [2022-02-18 14:16:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:26,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:27,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:27,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321766295] [2022-02-18 14:16:27,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321766295] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:27,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:27,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-18 14:16:27,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529206353] [2022-02-18 14:16:27,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:27,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-18 14:16:27,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:27,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-18 14:16:27,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:16:27,531 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) [2022-02-18 14:16:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:29,691 INFO L93 Difference]: Finished difference Result 57880 states and 160293 transitions. [2022-02-18 14:16:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-18 14:16:29,692 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 [2022-02-18 14:16:29,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:29,806 INFO L225 Difference]: With dead ends: 57880 [2022-02-18 14:16:29,806 INFO L226 Difference]: Without dead ends: 57880 [2022-02-18 14:16:29,806 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 [2022-02-18 14:16:29,806 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1721 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-18 14:16:29,806 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] [2022-02-18 14:16:29,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57880 states. [2022-02-18 14:16:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57880 to 40528. [2022-02-18 14:16:30,557 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) [2022-02-18 14:16:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113317 transitions. [2022-02-18 14:16:30,820 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113317 transitions. Word has length 231 [2022-02-18 14:16:30,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:30,820 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113317 transitions. [2022-02-18 14:16:30,820 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) [2022-02-18 14:16:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113317 transitions. [2022-02-18 14:16:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:30,862 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:30,862 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:30,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-02-18 14:16:30,862 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:30,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:30,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2026910460, now seen corresponding path program 40 times [2022-02-18 14:16:30,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:30,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112687099] [2022-02-18 14:16:30,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:30,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:31,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:31,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112687099] [2022-02-18 14:16:31,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112687099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:31,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:31,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:16:31,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247320444] [2022-02-18 14:16:31,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:31,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:16:31,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:16:31,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:16:31,371 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) [2022-02-18 14:16:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:39,355 INFO L93 Difference]: Finished difference Result 78576 states and 216461 transitions. [2022-02-18 14:16:39,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-02-18 14:16:39,355 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 [2022-02-18 14:16:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:39,507 INFO L225 Difference]: With dead ends: 78576 [2022-02-18 14:16:39,508 INFO L226 Difference]: Without dead ends: 78576 [2022-02-18 14:16:39,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10907 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=6530, Invalid=25690, Unknown=0, NotChecked=0, Total=32220 [2022-02-18 14:16:39,509 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 2418 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 4292 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-02-18 14:16:39,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2418 Valid, 10519 Invalid, 4311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4292 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-18 14:16:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78576 states. [2022-02-18 14:16:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78576 to 40532. [2022-02-18 14:16:40,499 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) [2022-02-18 14:16:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40532 states to 40532 states and 113336 transitions. [2022-02-18 14:16:40,592 INFO L78 Accepts]: Start accepts. Automaton has 40532 states and 113336 transitions. Word has length 231 [2022-02-18 14:16:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:40,592 INFO L470 AbstractCegarLoop]: Abstraction has 40532 states and 113336 transitions. [2022-02-18 14:16:40,592 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) [2022-02-18 14:16:40,593 INFO L276 IsEmpty]: Start isEmpty. Operand 40532 states and 113336 transitions. [2022-02-18 14:16:40,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:40,638 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:40,638 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:40,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-02-18 14:16:40,638 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:40,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:40,639 INFO L85 PathProgramCache]: Analyzing trace with hash -206606406, now seen corresponding path program 41 times [2022-02-18 14:16:40,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:40,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694464884] [2022-02-18 14:16:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:40,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:41,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:41,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694464884] [2022-02-18 14:16:41,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694464884] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:41,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:41,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-18 14:16:41,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724247335] [2022-02-18 14:16:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:41,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-18 14:16:41,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-18 14:16:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-02-18 14:16:41,374 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) [2022-02-18 14:16:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:47,232 INFO L93 Difference]: Finished difference Result 60249 states and 166719 transitions. [2022-02-18 14:16:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-18 14:16:47,232 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 [2022-02-18 14:16:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:47,443 INFO L225 Difference]: With dead ends: 60249 [2022-02-18 14:16:47,443 INFO L226 Difference]: Without dead ends: 60249 [2022-02-18 14:16:47,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5781 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4366, Invalid=15374, Unknown=0, NotChecked=0, Total=19740 [2022-02-18 14:16:47,444 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2441 mSDsluCounter, 8519 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:16:47,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2441 Valid, 9001 Invalid, 3531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:16:47,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60249 states. [2022-02-18 14:16:48,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60249 to 40524. [2022-02-18 14:16:48,151 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) [2022-02-18 14:16:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113302 transitions. [2022-02-18 14:16:48,239 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113302 transitions. Word has length 231 [2022-02-18 14:16:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:48,240 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113302 transitions. [2022-02-18 14:16:48,240 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) [2022-02-18 14:16:48,240 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113302 transitions. [2022-02-18 14:16:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:48,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:48,279 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:48,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-02-18 14:16:48,280 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:48,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:48,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1483094100, now seen corresponding path program 42 times [2022-02-18 14:16:48,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:48,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046206017] [2022-02-18 14:16:48,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:48,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:49,080 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:49,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:49,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046206017] [2022-02-18 14:16:49,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046206017] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:49,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:49,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-18 14:16:49,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045035055] [2022-02-18 14:16:49,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:49,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:16:49,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:16:49,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:16:49,082 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) [2022-02-18 14:16:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:16:57,822 INFO L93 Difference]: Finished difference Result 76584 states and 210839 transitions. [2022-02-18 14:16:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-02-18 14:16:57,822 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 [2022-02-18 14:16:57,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:16:57,966 INFO L225 Difference]: With dead ends: 76584 [2022-02-18 14:16:57,967 INFO L226 Difference]: Without dead ends: 76584 [2022-02-18 14:16:57,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10248 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=6247, Invalid=25615, Unknown=0, NotChecked=0, Total=31862 [2022-02-18 14:16:57,968 INFO L933 BasicCegarLoop]: 761 mSDtfsCounter, 2655 mSDsluCounter, 10196 mSDsCounter, 0 mSdLazyCounter, 4360 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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 [2022-02-18 14:16:57,968 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] [2022-02-18 14:16:58,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76584 states. [2022-02-18 14:16:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76584 to 40532. [2022-02-18 14:16:58,801 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) [2022-02-18 14:16:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40532 states to 40532 states and 113336 transitions. [2022-02-18 14:16:59,042 INFO L78 Accepts]: Start accepts. Automaton has 40532 states and 113336 transitions. Word has length 231 [2022-02-18 14:16:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:16:59,043 INFO L470 AbstractCegarLoop]: Abstraction has 40532 states and 113336 transitions. [2022-02-18 14:16:59,043 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) [2022-02-18 14:16:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 40532 states and 113336 transitions. [2022-02-18 14:16:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:16:59,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:16:59,078 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:16:59,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-02-18 14:16:59,079 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:16:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:16:59,079 INFO L85 PathProgramCache]: Analyzing trace with hash -991569142, now seen corresponding path program 43 times [2022-02-18 14:16:59,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:16:59,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250376558] [2022-02-18 14:16:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:16:59,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:16:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:16:59,577 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:16:59,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:16:59,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250376558] [2022-02-18 14:16:59,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250376558] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:16:59,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:16:59,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-18 14:16:59,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699700307] [2022-02-18 14:16:59,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:16:59,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-18 14:16:59,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:16:59,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-18 14:16:59,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-02-18 14:16:59,579 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) [2022-02-18 14:17:05,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:05,278 INFO L93 Difference]: Finished difference Result 59681 states and 165037 transitions. [2022-02-18 14:17:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-18 14:17:05,279 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 [2022-02-18 14:17:05,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:05,390 INFO L225 Difference]: With dead ends: 59681 [2022-02-18 14:17:05,390 INFO L226 Difference]: Without dead ends: 59681 [2022-02-18 14:17:05,390 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 [2022-02-18 14:17:05,391 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2376 mSDsluCounter, 8601 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:05,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2376 Valid, 9086 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3383 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-18 14:17:05,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59681 states. [2022-02-18 14:17:06,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59681 to 40528. [2022-02-18 14:17:06,107 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) [2022-02-18 14:17:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113317 transitions. [2022-02-18 14:17:06,190 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113317 transitions. Word has length 231 [2022-02-18 14:17:06,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:06,190 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113317 transitions. [2022-02-18 14:17:06,190 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) [2022-02-18 14:17:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113317 transitions. [2022-02-18 14:17:06,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:06,227 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:06,227 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:06,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-02-18 14:17:06,227 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:06,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:06,227 INFO L85 PathProgramCache]: Analyzing trace with hash -745457154, now seen corresponding path program 44 times [2022-02-18 14:17:06,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:06,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969485410] [2022-02-18 14:17:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:06,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:07,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:07,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969485410] [2022-02-18 14:17:07,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969485410] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:07,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:07,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-18 14:17:07,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061992034] [2022-02-18 14:17:07,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:07,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-18 14:17:07,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:07,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-18 14:17:07,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:17:07,057 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) [2022-02-18 14:17:14,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:14,277 INFO L93 Difference]: Finished difference Result 58359 states and 161397 transitions. [2022-02-18 14:17:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-18 14:17:14,277 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 [2022-02-18 14:17:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:14,384 INFO L225 Difference]: With dead ends: 58359 [2022-02-18 14:17:14,384 INFO L226 Difference]: Without dead ends: 58359 [2022-02-18 14:17:14,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7147 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=5201, Invalid=19291, Unknown=0, NotChecked=0, Total=24492 [2022-02-18 14:17:14,385 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 2705 mSDsluCounter, 9135 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:14,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2705 Valid, 9666 Invalid, 3714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-18 14:17:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58359 states. [2022-02-18 14:17:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58359 to 40520. [2022-02-18 14:17:15,232 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) [2022-02-18 14:17:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113291 transitions. [2022-02-18 14:17:15,315 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113291 transitions. Word has length 231 [2022-02-18 14:17:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:15,315 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113291 transitions. [2022-02-18 14:17:15,315 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) [2022-02-18 14:17:15,315 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113291 transitions. [2022-02-18 14:17:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:15,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:15,353 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:15,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-02-18 14:17:15,353 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:15,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2116950654, now seen corresponding path program 45 times [2022-02-18 14:17:15,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:15,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716256639] [2022-02-18 14:17:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:15,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:15,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:15,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716256639] [2022-02-18 14:17:15,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716256639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:15,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:15,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:15,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343683936] [2022-02-18 14:17:15,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:15,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:15,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:15,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:15,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:15,773 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) [2022-02-18 14:17:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:17,200 INFO L93 Difference]: Finished difference Result 56678 states and 156913 transitions. [2022-02-18 14:17:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-18 14:17:17,200 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 [2022-02-18 14:17:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:17,317 INFO L225 Difference]: With dead ends: 56678 [2022-02-18 14:17:17,317 INFO L226 Difference]: Without dead ends: 56029 [2022-02-18 14:17:17,318 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 [2022-02-18 14:17:17,318 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1244 mSDsluCounter, 5080 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:17,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1244 Valid, 5452 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-18 14:17:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56029 states. [2022-02-18 14:17:18,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56029 to 40520. [2022-02-18 14:17:18,204 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) [2022-02-18 14:17:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113255 transitions. [2022-02-18 14:17:18,284 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113255 transitions. Word has length 231 [2022-02-18 14:17:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:18,285 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113255 transitions. [2022-02-18 14:17:18,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:17:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113255 transitions. [2022-02-18 14:17:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:18,319 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:18,320 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:18,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-02-18 14:17:18,320 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash -897731330, now seen corresponding path program 46 times [2022-02-18 14:17:18,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:18,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964523644] [2022-02-18 14:17:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:18,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:18,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:18,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964523644] [2022-02-18 14:17:18,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964523644] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:18,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:18,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:18,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940119759] [2022-02-18 14:17:18,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:18,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:18,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:18,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:18,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:18,743 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) [2022-02-18 14:17:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:20,264 INFO L93 Difference]: Finished difference Result 57928 states and 160650 transitions. [2022-02-18 14:17:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 14:17:20,265 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 [2022-02-18 14:17:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:20,378 INFO L225 Difference]: With dead ends: 57928 [2022-02-18 14:17:20,378 INFO L226 Difference]: Without dead ends: 57928 [2022-02-18 14:17:20,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=724, Invalid=2138, Unknown=0, NotChecked=0, Total=2862 [2022-02-18 14:17:20,379 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1257 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:20,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 4511 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-18 14:17:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57928 states. [2022-02-18 14:17:21,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57928 to 40528. [2022-02-18 14:17:21,242 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) [2022-02-18 14:17:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113289 transitions. [2022-02-18 14:17:21,322 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113289 transitions. Word has length 231 [2022-02-18 14:17:21,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:21,323 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113289 transitions. [2022-02-18 14:17:21,323 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) [2022-02-18 14:17:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113289 transitions. [2022-02-18 14:17:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:21,358 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:21,358 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:21,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-02-18 14:17:21,358 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:21,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:21,359 INFO L85 PathProgramCache]: Analyzing trace with hash 922572724, now seen corresponding path program 47 times [2022-02-18 14:17:21,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:21,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645449663] [2022-02-18 14:17:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:21,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:21,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:21,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645449663] [2022-02-18 14:17:21,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645449663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:21,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:21,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:21,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202944083] [2022-02-18 14:17:21,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:21,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:21,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:21,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:21,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:21,759 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) [2022-02-18 14:17:23,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:23,173 INFO L93 Difference]: Finished difference Result 58148 states and 161261 transitions. [2022-02-18 14:17:23,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-18 14:17:23,174 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 [2022-02-18 14:17:23,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:23,283 INFO L225 Difference]: With dead ends: 58148 [2022-02-18 14:17:23,283 INFO L226 Difference]: Without dead ends: 58148 [2022-02-18 14:17:23,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=694, Invalid=2062, Unknown=0, NotChecked=0, Total=2756 [2022-02-18 14:17:23,283 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1424 mSDsluCounter, 3848 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:23,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1424 Valid, 4245 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-18 14:17:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58148 states. [2022-02-18 14:17:24,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58148 to 40524. [2022-02-18 14:17:24,184 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) [2022-02-18 14:17:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113270 transitions. [2022-02-18 14:17:24,268 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113270 transitions. Word has length 231 [2022-02-18 14:17:24,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:24,268 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113270 transitions. [2022-02-18 14:17:24,268 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) [2022-02-18 14:17:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113270 transitions. [2022-02-18 14:17:24,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:24,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:24,305 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:24,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-02-18 14:17:24,305 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:24,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:24,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1168684712, now seen corresponding path program 48 times [2022-02-18 14:17:24,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:24,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604931649] [2022-02-18 14:17:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:24,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:24,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:24,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604931649] [2022-02-18 14:17:24,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604931649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:24,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:24,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:24,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301099395] [2022-02-18 14:17:24,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:24,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:24,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:24,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:24,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:24,755 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) [2022-02-18 14:17:26,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:26,274 INFO L93 Difference]: Finished difference Result 58427 states and 161916 transitions. [2022-02-18 14:17:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 14:17:26,274 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 [2022-02-18 14:17:26,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:26,388 INFO L225 Difference]: With dead ends: 58427 [2022-02-18 14:17:26,388 INFO L226 Difference]: Without dead ends: 58427 [2022-02-18 14:17:26,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=720, Invalid=2142, Unknown=0, NotChecked=0, Total=2862 [2022-02-18 14:17:26,388 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 [2022-02-18 14:17:26,388 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] [2022-02-18 14:17:26,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58427 states. [2022-02-18 14:17:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58427 to 40472. [2022-02-18 14:17:27,269 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) [2022-02-18 14:17:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113107 transitions. [2022-02-18 14:17:27,358 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113107 transitions. Word has length 231 [2022-02-18 14:17:27,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:27,358 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113107 transitions. [2022-02-18 14:17:27,358 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) [2022-02-18 14:17:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113107 transitions. [2022-02-18 14:17:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:27,395 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:27,395 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:27,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-02-18 14:17:27,395 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:27,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash 179518346, now seen corresponding path program 49 times [2022-02-18 14:17:27,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:27,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753529554] [2022-02-18 14:17:27,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:27,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:27,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:27,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753529554] [2022-02-18 14:17:27,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753529554] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:27,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:27,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:27,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21668183] [2022-02-18 14:17:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:27,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:27,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:27,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:27,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:27,900 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) [2022-02-18 14:17:29,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:29,536 INFO L93 Difference]: Finished difference Result 58748 states and 162973 transitions. [2022-02-18 14:17:29,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-18 14:17:29,537 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 [2022-02-18 14:17:29,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:29,647 INFO L225 Difference]: With dead ends: 58748 [2022-02-18 14:17:29,647 INFO L226 Difference]: Without dead ends: 58748 [2022-02-18 14:17:29,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=866, Invalid=2556, Unknown=0, NotChecked=0, Total=3422 [2022-02-18 14:17:29,647 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 [2022-02-18 14:17:29,648 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] [2022-02-18 14:17:29,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58748 states. [2022-02-18 14:17:30,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58748 to 40480. [2022-02-18 14:17:30,524 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) [2022-02-18 14:17:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-02-18 14:17:30,603 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-02-18 14:17:30,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:30,603 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-02-18 14:17:30,603 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) [2022-02-18 14:17:30,603 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-02-18 14:17:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:30,639 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:30,639 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:30,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-02-18 14:17:30,639 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash -678636848, now seen corresponding path program 50 times [2022-02-18 14:17:30,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:30,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307227004] [2022-02-18 14:17:30,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:31,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:31,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307227004] [2022-02-18 14:17:31,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307227004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:31,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:31,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:31,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354526595] [2022-02-18 14:17:31,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:31,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:31,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:31,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:31,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:31,150 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) [2022-02-18 14:17:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:32,790 INFO L93 Difference]: Finished difference Result 59964 states and 166493 transitions. [2022-02-18 14:17:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 14:17:32,790 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 [2022-02-18 14:17:32,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:32,901 INFO L225 Difference]: With dead ends: 59964 [2022-02-18 14:17:32,901 INFO L226 Difference]: Without dead ends: 59964 [2022-02-18 14:17:32,902 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 [2022-02-18 14:17:32,902 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1321 mSDsluCounter, 4354 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:32,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 4737 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-18 14:17:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59964 states. [2022-02-18 14:17:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59964 to 40484. [2022-02-18 14:17:33,802 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) [2022-02-18 14:17:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-02-18 14:17:33,884 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-02-18 14:17:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:33,884 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-02-18 14:17:33,884 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) [2022-02-18 14:17:33,884 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-02-18 14:17:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:33,919 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:33,919 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:33,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-02-18 14:17:33,920 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:33,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1141667206, now seen corresponding path program 51 times [2022-02-18 14:17:33,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:33,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817296256] [2022-02-18 14:17:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:33,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:34,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:34,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817296256] [2022-02-18 14:17:34,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817296256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:34,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:34,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:34,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545430164] [2022-02-18 14:17:34,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:34,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:34,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:34,426 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) [2022-02-18 14:17:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:35,968 INFO L93 Difference]: Finished difference Result 59132 states and 164159 transitions. [2022-02-18 14:17:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-18 14:17:35,969 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 [2022-02-18 14:17:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:36,079 INFO L225 Difference]: With dead ends: 59132 [2022-02-18 14:17:36,079 INFO L226 Difference]: Without dead ends: 59132 [2022-02-18 14:17:36,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=782, Invalid=2298, Unknown=0, NotChecked=0, Total=3080 [2022-02-18 14:17:36,080 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 [2022-02-18 14:17:36,080 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] [2022-02-18 14:17:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59132 states. [2022-02-18 14:17:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59132 to 40476. [2022-02-18 14:17:37,014 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) [2022-02-18 14:17:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40476 states to 40476 states and 113118 transitions. [2022-02-18 14:17:37,099 INFO L78 Accepts]: Start accepts. Automaton has 40476 states and 113118 transitions. Word has length 231 [2022-02-18 14:17:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:37,099 INFO L470 AbstractCegarLoop]: Abstraction has 40476 states and 113118 transitions. [2022-02-18 14:17:37,099 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) [2022-02-18 14:17:37,099 INFO L276 IsEmpty]: Start isEmpty. Operand 40476 states and 113118 transitions. [2022-02-18 14:17:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:37,136 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:37,136 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:37,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-02-18 14:17:37,136 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:37,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:37,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1463599584, now seen corresponding path program 52 times [2022-02-18 14:17:37,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:37,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985176857] [2022-02-18 14:17:37,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:37,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:37,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:37,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985176857] [2022-02-18 14:17:37,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985176857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:37,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:37,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:37,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137116344] [2022-02-18 14:17:37,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:37,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:37,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:37,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:37,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:37,731 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) [2022-02-18 14:17:39,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:39,275 INFO L93 Difference]: Finished difference Result 60384 states and 167648 transitions. [2022-02-18 14:17:39,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 14:17:39,276 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 [2022-02-18 14:17:39,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:39,388 INFO L225 Difference]: With dead ends: 60384 [2022-02-18 14:17:39,389 INFO L226 Difference]: Without dead ends: 60384 [2022-02-18 14:17:39,389 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 [2022-02-18 14:17:39,389 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 [2022-02-18 14:17:39,389 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] [2022-02-18 14:17:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60384 states. [2022-02-18 14:17:40,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60384 to 40484. [2022-02-18 14:17:40,303 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) [2022-02-18 14:17:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-02-18 14:17:40,395 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-02-18 14:17:40,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:40,396 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-02-18 14:17:40,396 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) [2022-02-18 14:17:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-02-18 14:17:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:40,435 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:40,435 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:40,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-02-18 14:17:40,435 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:40,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:40,436 INFO L85 PathProgramCache]: Analyzing trace with hash 356704470, now seen corresponding path program 53 times [2022-02-18 14:17:40,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:40,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733477053] [2022-02-18 14:17:40,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:40,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:40,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:40,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733477053] [2022-02-18 14:17:40,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733477053] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:40,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:40,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:40,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138676457] [2022-02-18 14:17:40,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:40,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:40,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:40,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:40,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:40,930 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) [2022-02-18 14:17:42,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:42,502 INFO L93 Difference]: Finished difference Result 60576 states and 168186 transitions. [2022-02-18 14:17:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-18 14:17:42,502 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 [2022-02-18 14:17:42,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:42,614 INFO L225 Difference]: With dead ends: 60576 [2022-02-18 14:17:42,615 INFO L226 Difference]: Without dead ends: 60576 [2022-02-18 14:17:42,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=783, Invalid=2297, Unknown=0, NotChecked=0, Total=3080 [2022-02-18 14:17:42,615 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:42,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 4390 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-18 14:17:42,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60576 states. [2022-02-18 14:17:43,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60576 to 40480. [2022-02-18 14:17:43,363 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) [2022-02-18 14:17:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-02-18 14:17:43,629 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-02-18 14:17:43,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:43,630 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-02-18 14:17:43,630 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) [2022-02-18 14:17:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-02-18 14:17:43,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:43,662 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:43,662 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:43,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-02-18 14:17:43,662 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:43,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:43,663 INFO L85 PathProgramCache]: Analyzing trace with hash 602816458, now seen corresponding path program 54 times [2022-02-18 14:17:43,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:43,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519338112] [2022-02-18 14:17:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:43,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:44,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:44,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519338112] [2022-02-18 14:17:44,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519338112] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:44,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:44,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:44,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709775151] [2022-02-18 14:17:44,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:44,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:44,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:44,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:44,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:44,173 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) [2022-02-18 14:17:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:45,763 INFO L93 Difference]: Finished difference Result 59415 states and 164765 transitions. [2022-02-18 14:17:45,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 14:17:45,763 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 [2022-02-18 14:17:45,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:45,879 INFO L225 Difference]: With dead ends: 59415 [2022-02-18 14:17:45,879 INFO L226 Difference]: Without dead ends: 59415 [2022-02-18 14:17:45,880 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 [2022-02-18 14:17:45,880 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1368 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 4564 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:45,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 4564 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-18 14:17:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59415 states. [2022-02-18 14:17:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59415 to 40424. [2022-02-18 14:17:46,598 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) [2022-02-18 14:17:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 112971 transitions. [2022-02-18 14:17:46,683 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 112971 transitions. Word has length 231 [2022-02-18 14:17:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:46,683 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 112971 transitions. [2022-02-18 14:17:46,683 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) [2022-02-18 14:17:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 112971 transitions. [2022-02-18 14:17:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:46,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:46,721 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:46,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-02-18 14:17:46,722 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:46,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:46,722 INFO L85 PathProgramCache]: Analyzing trace with hash -802389598, now seen corresponding path program 55 times [2022-02-18 14:17:46,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:46,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887343563] [2022-02-18 14:17:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:46,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:47,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:47,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887343563] [2022-02-18 14:17:47,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887343563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:47,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:47,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:47,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117430069] [2022-02-18 14:17:47,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:47,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:47,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:47,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:47,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:47,427 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) [2022-02-18 14:17:49,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:49,953 INFO L93 Difference]: Finished difference Result 67156 states and 185603 transitions. [2022-02-18 14:17:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-18 14:17:49,953 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 [2022-02-18 14:17:49,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:50,086 INFO L225 Difference]: With dead ends: 67156 [2022-02-18 14:17:50,086 INFO L226 Difference]: Without dead ends: 66364 [2022-02-18 14:17:50,087 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 [2022-02-18 14:17:50,087 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 1992 mSDsluCounter, 6092 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:50,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1992 Valid, 6535 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-18 14:17:50,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66364 states. [2022-02-18 14:17:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66364 to 40520. [2022-02-18 14:17:51,030 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) [2022-02-18 14:17:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 113247 transitions. [2022-02-18 14:17:51,124 INFO L78 Accepts]: Start accepts. Automaton has 40520 states and 113247 transitions. Word has length 231 [2022-02-18 14:17:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:51,124 INFO L470 AbstractCegarLoop]: Abstraction has 40520 states and 113247 transitions. [2022-02-18 14:17:51,124 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) [2022-02-18 14:17:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 40520 states and 113247 transitions. [2022-02-18 14:17:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:51,161 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:51,161 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:51,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-02-18 14:17:51,161 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:51,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash -479848388, now seen corresponding path program 56 times [2022-02-18 14:17:51,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:51,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558954711] [2022-02-18 14:17:51,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:51,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:51,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558954711] [2022-02-18 14:17:51,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558954711] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:51,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:51,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:51,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387372724] [2022-02-18 14:17:51,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:51,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:51,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:51,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:51,607 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) [2022-02-18 14:17:53,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:53,588 INFO L93 Difference]: Finished difference Result 64439 states and 178791 transitions. [2022-02-18 14:17:53,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 14:17:53,589 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 [2022-02-18 14:17:53,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:53,706 INFO L225 Difference]: With dead ends: 64439 [2022-02-18 14:17:53,706 INFO L226 Difference]: Without dead ends: 64439 [2022-02-18 14:17:53,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1077, Invalid=3345, Unknown=0, NotChecked=0, Total=4422 [2022-02-18 14:17:53,706 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 [2022-02-18 14:17:53,706 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] [2022-02-18 14:17:53,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64439 states. [2022-02-18 14:17:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64439 to 40524. [2022-02-18 14:17:54,635 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) [2022-02-18 14:17:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40524 states to 40524 states and 113262 transitions. [2022-02-18 14:17:54,716 INFO L78 Accepts]: Start accepts. Automaton has 40524 states and 113262 transitions. Word has length 231 [2022-02-18 14:17:54,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:54,716 INFO L470 AbstractCegarLoop]: Abstraction has 40524 states and 113262 transitions. [2022-02-18 14:17:54,716 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) [2022-02-18 14:17:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand 40524 states and 113262 transitions. [2022-02-18 14:17:54,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:54,756 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:54,756 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:54,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-02-18 14:17:54,756 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:54,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:54,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1338003582, now seen corresponding path program 57 times [2022-02-18 14:17:54,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:54,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862370082] [2022-02-18 14:17:54,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:54,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:55,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:55,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862370082] [2022-02-18 14:17:55,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862370082] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:55,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:55,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:55,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847255052] [2022-02-18 14:17:55,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:55,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:55,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:55,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:55,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:55,195 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) [2022-02-18 14:17:57,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:17:57,138 INFO L93 Difference]: Finished difference Result 63791 states and 176973 transitions. [2022-02-18 14:17:57,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:17:57,138 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-18 14:17:57,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:17:57,263 INFO L225 Difference]: With dead ends: 63791 [2022-02-18 14:17:57,263 INFO L226 Difference]: Without dead ends: 63791 [2022-02-18 14:17:57,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=965, Invalid=2941, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:17:57,264 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1293 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 5492 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:17:57,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 5492 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-18 14:17:57,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63791 states. [2022-02-18 14:17:58,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63791 to 40528. [2022-02-18 14:17:58,224 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) [2022-02-18 14:17:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40528 states to 40528 states and 113281 transitions. [2022-02-18 14:17:58,306 INFO L78 Accepts]: Start accepts. Automaton has 40528 states and 113281 transitions. Word has length 231 [2022-02-18 14:17:58,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:17:58,306 INFO L470 AbstractCegarLoop]: Abstraction has 40528 states and 113281 transitions. [2022-02-18 14:17:58,306 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) [2022-02-18 14:17:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 40528 states and 113281 transitions. [2022-02-18 14:17:58,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:17:58,342 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:17:58,342 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:17:58,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-02-18 14:17:58,342 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:17:58,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:17:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash 482300472, now seen corresponding path program 58 times [2022-02-18 14:17:58,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:17:58,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438146839] [2022-02-18 14:17:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:17:58,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:17:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:17:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:17:58,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:17:58,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438146839] [2022-02-18 14:17:58,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438146839] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:17:58,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:17:58,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:17:58,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465679911] [2022-02-18 14:17:58,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:17:58,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:17:58,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:17:58,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:17:58,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:17:58,788 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) [2022-02-18 14:18:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:18:00,655 INFO L93 Difference]: Finished difference Result 63114 states and 175034 transitions. [2022-02-18 14:18:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:18:00,655 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 [2022-02-18 14:18:00,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:18:00,769 INFO L225 Difference]: With dead ends: 63114 [2022-02-18 14:18:00,769 INFO L226 Difference]: Without dead ends: 63114 [2022-02-18 14:18:00,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=975, Invalid=2931, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:18:00,770 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1525 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-18 14:18:00,770 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] [2022-02-18 14:18:00,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63114 states. [2022-02-18 14:18:01,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63114 to 40472. [2022-02-18 14:18:01,567 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) [2022-02-18 14:18:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113107 transitions. [2022-02-18 14:18:01,821 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113107 transitions. Word has length 231 [2022-02-18 14:18:01,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:18:01,822 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113107 transitions. [2022-02-18 14:18:01,822 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) [2022-02-18 14:18:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113107 transitions. [2022-02-18 14:18:01,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:18:01,859 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:18:01,859 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:18:01,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-02-18 14:18:01,859 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:18:01,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:18:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2101650344, now seen corresponding path program 59 times [2022-02-18 14:18:01,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:18:01,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772450364] [2022-02-18 14:18:01,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:18:01,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:18:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:18:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:18:02,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:18:02,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772450364] [2022-02-18 14:18:02,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772450364] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:18:02,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:18:02,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:18:02,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35604696] [2022-02-18 14:18:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:18:02,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:18:02,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:18:02,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:18:02,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:18:02,323 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) [2022-02-18 14:18:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:18:04,288 INFO L93 Difference]: Finished difference Result 64859 states and 179946 transitions. [2022-02-18 14:18:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-18 14:18:04,288 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 [2022-02-18 14:18:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:18:04,408 INFO L225 Difference]: With dead ends: 64859 [2022-02-18 14:18:04,409 INFO L226 Difference]: Without dead ends: 64859 [2022-02-18 14:18:04,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1015, Invalid=3145, Unknown=0, NotChecked=0, Total=4160 [2022-02-18 14:18:04,409 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 [2022-02-18 14:18:04,409 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] [2022-02-18 14:18:04,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64859 states. [2022-02-18 14:18:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64859 to 40480. [2022-02-18 14:18:05,202 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) [2022-02-18 14:18:05,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-02-18 14:18:05,487 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-02-18 14:18:05,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:18:05,487 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-02-18 14:18:05,487 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) [2022-02-18 14:18:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-02-18 14:18:05,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:18:05,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:18:05,525 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:18:05,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-02-18 14:18:05,526 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:18:05,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:18:05,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1243495150, now seen corresponding path program 60 times [2022-02-18 14:18:05,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:18:05,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840486201] [2022-02-18 14:18:05,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:18:05,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:18:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:18:06,001 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:18:06,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:18:06,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840486201] [2022-02-18 14:18:06,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840486201] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:18:06,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:18:06,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:18:06,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664277132] [2022-02-18 14:18:06,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:18:06,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:18:06,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:18:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:18:06,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:18:06,002 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) [2022-02-18 14:18:07,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:18:07,823 INFO L93 Difference]: Finished difference Result 66047 states and 183393 transitions. [2022-02-18 14:18:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:18:07,824 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 [2022-02-18 14:18:07,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:18:07,949 INFO L225 Difference]: With dead ends: 66047 [2022-02-18 14:18:07,950 INFO L226 Difference]: Without dead ends: 66047 [2022-02-18 14:18:07,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=963, Invalid=2943, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:18:07,950 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 1480 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 4698 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:18:07,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 4698 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-18 14:18:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66047 states. [2022-02-18 14:18:08,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66047 to 40484. [2022-02-18 14:18:08,768 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) [2022-02-18 14:18:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-02-18 14:18:09,048 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-02-18 14:18:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:18:09,048 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-02-18 14:18:09,048 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) [2022-02-18 14:18:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-02-18 14:18:09,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:18:09,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:18:09,083 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, 1, 1, 1, 1] [2022-02-18 14:18:09,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-02-18 14:18:09,083 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:18:09,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:18:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1231168092, now seen corresponding path program 61 times [2022-02-18 14:18:09,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:18:09,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247293661] [2022-02-18 14:18:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:18:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:18:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:18:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:18:09,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:18:09,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247293661] [2022-02-18 14:18:09,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247293661] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:18:09,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:18:09,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:18:09,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454492808] [2022-02-18 14:18:09,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:18:09,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:18:09,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:18:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:18:09,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:18:09,556 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) [2022-02-18 14:18:11,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:18:11,574 INFO L93 Difference]: Finished difference Result 65370 states and 181454 transitions. [2022-02-18 14:18:11,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:18:11,575 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 [2022-02-18 14:18:11,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:18:11,732 INFO L225 Difference]: With dead ends: 65370 [2022-02-18 14:18:11,732 INFO L226 Difference]: Without dead ends: 65370 [2022-02-18 14:18:11,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=968, Invalid=2938, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:18:11,733 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1557 mSDsluCounter, 5079 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 5471 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:18:11,733 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] [2022-02-18 14:18:11,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65370 states. [2022-02-18 14:18:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65370 to 40476. [2022-02-18 14:18:12,529 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) [2022-02-18 14:18:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40476 states to 40476 states and 113118 transitions. [2022-02-18 14:18:12,614 INFO L78 Accepts]: Start accepts. Automaton has 40476 states and 113118 transitions. Word has length 231 [2022-02-18 14:18:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:18:12,614 INFO L470 AbstractCegarLoop]: Abstraction has 40476 states and 113118 transitions. [2022-02-18 14:18:12,614 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) [2022-02-18 14:18:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 40476 states and 113118 transitions. [2022-02-18 14:18:12,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:18:12,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:18:12,654 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:18:12,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-02-18 14:18:12,654 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:18:12,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:18:12,655 INFO L85 PathProgramCache]: Analyzing trace with hash 458532414, now seen corresponding path program 62 times [2022-02-18 14:18:12,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:18:12,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662406290] [2022-02-18 14:18:12,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:18:12,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:18:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:18:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:18:13,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:18:13,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662406290] [2022-02-18 14:18:13,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662406290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:18:13,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:18:13,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:18:13,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275180828] [2022-02-18 14:18:13,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:18:13,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:18:13,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:18:13,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:18:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:18:13,305 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) [2022-02-18 14:18:15,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:18:15,009 INFO L93 Difference]: Finished difference Result 64159 states and 177977 transitions. [2022-02-18 14:18:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-18 14:18:15,009 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 [2022-02-18 14:18:15,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:18:15,295 INFO L225 Difference]: With dead ends: 64159 [2022-02-18 14:18:15,295 INFO L226 Difference]: Without dead ends: 64159 [2022-02-18 14:18:15,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=903, Invalid=2757, Unknown=0, NotChecked=0, Total=3660 [2022-02-18 14:18:15,295 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1585 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:18:15,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 5331 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-18 14:18:15,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64159 states. [2022-02-18 14:18:15,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64159 to 40484. [2022-02-18 14:18:15,979 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) [2022-02-18 14:18:16,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40484 states to 40484 states and 113152 transitions. [2022-02-18 14:18:16,064 INFO L78 Accepts]: Start accepts. Automaton has 40484 states and 113152 transitions. Word has length 231 [2022-02-18 14:18:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:18:16,064 INFO L470 AbstractCegarLoop]: Abstraction has 40484 states and 113152 transitions. [2022-02-18 14:18:16,064 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) [2022-02-18 14:18:16,065 INFO L276 IsEmpty]: Start isEmpty. Operand 40484 states and 113152 transitions. [2022-02-18 14:18:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:18:16,101 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:18:16,102 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:18:16,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-02-18 14:18:16,102 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:18:16,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:18:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2016130828, now seen corresponding path program 63 times [2022-02-18 14:18:16,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:18:16,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856587203] [2022-02-18 14:18:16,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:18:16,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:18:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:18:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:18:16,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:18:16,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856587203] [2022-02-18 14:18:16,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856587203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:18:16,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:18:16,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:18:16,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225030890] [2022-02-18 14:18:16,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:18:16,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:18:16,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:18:16,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:18:16,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:18:16,558 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) [2022-02-18 14:18:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:18:18,453 INFO L93 Difference]: Finished difference Result 64506 states and 178910 transitions. [2022-02-18 14:18:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-18 14:18:18,453 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 [2022-02-18 14:18:18,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:18:18,579 INFO L225 Difference]: With dead ends: 64506 [2022-02-18 14:18:18,580 INFO L226 Difference]: Without dead ends: 64506 [2022-02-18 14:18:18,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=908, Invalid=2752, Unknown=0, NotChecked=0, Total=3660 [2022-02-18 14:18:18,580 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1573 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-18 14:18:18,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1573 Valid, 5250 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-18 14:18:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64506 states. [2022-02-18 14:18:19,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64506 to 40480. [2022-02-18 14:18:19,483 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) [2022-02-18 14:18:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40480 states to 40480 states and 113133 transitions. [2022-02-18 14:18:19,571 INFO L78 Accepts]: Start accepts. Automaton has 40480 states and 113133 transitions. Word has length 231 [2022-02-18 14:18:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:18:19,571 INFO L470 AbstractCegarLoop]: Abstraction has 40480 states and 113133 transitions. [2022-02-18 14:18:19,571 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) [2022-02-18 14:18:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand 40480 states and 113133 transitions. [2022-02-18 14:18:19,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:18:19,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:18:19,608 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:18:19,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-02-18 14:18:19,608 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:18:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:18:19,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1770018840, now seen corresponding path program 64 times [2022-02-18 14:18:19,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:18:19,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205044308] [2022-02-18 14:18:19,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:18:19,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:18:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:18:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:18:20,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:18:20,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205044308] [2022-02-18 14:18:20,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205044308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:18:20,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:18:20,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:18:20,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570739066] [2022-02-18 14:18:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:18:20,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:18:20,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:18:20,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:18:20,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:18:20,074 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) [2022-02-18 14:18:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:18:21,978 INFO L93 Difference]: Finished difference Result 63066 states and 174716 transitions. [2022-02-18 14:18:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 14:18:21,979 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 [2022-02-18 14:18:21,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:18:22,101 INFO L225 Difference]: With dead ends: 63066 [2022-02-18 14:18:22,101 INFO L226 Difference]: Without dead ends: 63066 [2022-02-18 14:18:22,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=966, Invalid=2940, Unknown=0, NotChecked=0, Total=3906 [2022-02-18 14:18:22,102 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1684 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-18 14:18:22,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1684 Valid, 5256 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-18 14:18:22,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63066 states. [2022-02-18 14:18:22,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63066 to 39848. [2022-02-18 14:18:22,986 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) [2022-02-18 14:18:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39848 states to 39848 states and 111291 transitions. [2022-02-18 14:18:23,063 INFO L78 Accepts]: Start accepts. Automaton has 39848 states and 111291 transitions. Word has length 231 [2022-02-18 14:18:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:18:23,063 INFO L470 AbstractCegarLoop]: Abstraction has 39848 states and 111291 transitions. [2022-02-18 14:18:23,063 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) [2022-02-18 14:18:23,064 INFO L276 IsEmpty]: Start isEmpty. Operand 39848 states and 111291 transitions. [2022-02-18 14:18:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-18 14:18:23,097 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:18:23,098 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:18:23,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-02-18 14:18:23,098 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 14:18:23,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:18:23,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076682, now seen corresponding path program 65 times [2022-02-18 14:18:23,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:18:23,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497560747] [2022-02-18 14:18:23,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:18:23,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:18:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:18:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-18 14:18:23,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:18:23,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497560747] [2022-02-18 14:18:23,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497560747] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:18:23,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:18:23,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-18 14:18:23,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897647210] [2022-02-18 14:18:23,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:18:23,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-18 14:18:23,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:18:23,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-18 14:18:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:18:23,451 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)