/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread/indexer.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 14:17:12,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 14:17:12,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 14:17:12,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 14:17:12,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 14:17:12,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 14:17:12,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 14:17:12,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 14:17:12,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 14:17:12,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 14:17:12,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 14:17:12,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 14:17:12,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 14:17:12,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 14:17:12,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 14:17:12,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 14:17:12,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 14:17:12,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 14:17:12,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 14:17:12,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 14:17:12,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 14:17:12,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 14:17:12,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 14:17:12,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 14:17:12,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 14:17:12,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 14:17:12,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 14:17:12,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 14:17:12,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 14:17:12,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 14:17:12,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 14:17:12,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 14:17:12,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 14:17:12,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 14:17:12,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 14:17:12,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 14:17:12,160 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 [2021-01-26 14:17:12,217 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 14:17:12,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 14:17:12,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 14:17:12,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 14:17:12,219 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 14:17:12,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 14:17:12,220 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 14:17:12,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 14:17:12,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 14:17:12,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 14:17:12,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 14:17:12,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 14:17:12,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 14:17:12,221 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 14:17:12,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 14:17:12,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 14:17:12,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 14:17:12,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 14:17:12,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 14:17:12,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 14:17:12,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 14:17:12,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 14:17:12,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 14:17:12,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 14:17:12,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 14:17:12,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 14:17:12,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 14:17:12,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 14:17:12,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 14:17:12,225 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 14:17:12,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 14:17:12,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 14:17:12,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 14:17:12,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 14:17:12,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 14:17:12,630 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 14:17:12,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/indexer.i [2021-01-26 14:17:12,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3d91fdc/dfe7caf854b64975a972440529d1620b/FLAG6c97115df [2021-01-26 14:17:13,393 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 14:17:13,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/indexer.i [2021-01-26 14:17:13,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3d91fdc/dfe7caf854b64975a972440529d1620b/FLAG6c97115df [2021-01-26 14:17:13,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3d91fdc/dfe7caf854b64975a972440529d1620b [2021-01-26 14:17:13,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 14:17:13,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 14:17:13,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 14:17:13,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 14:17:13,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 14:17:13,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 02:17:13" (1/1) ... [2021-01-26 14:17:13,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8d141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:13, skipping insertion in model container [2021-01-26 14:17:13,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 02:17:13" (1/1) ... [2021-01-26 14:17:13,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 14:17:13,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 14:17:14,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 14:17:14,534 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 14:17:14,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 14:17:14,770 INFO L208 MainTranslator]: Completed translation [2021-01-26 14:17:14,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14 WrapperNode [2021-01-26 14:17:14,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 14:17:14,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 14:17:14,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 14:17:14,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 14:17:14,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 14:17:14,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 14:17:14,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 14:17:14,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 14:17:14,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... [2021-01-26 14:17:14,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 14:17:14,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 14:17:14,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 14:17:14,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 14:17:14,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 14:17:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 14:17:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 14:17:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-26 14:17:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2021-01-26 14:17:14,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2021-01-26 14:17:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 14:17:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-01-26 14:17:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 14:17:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 14:17:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 14:17:14,963 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 14:17:15,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 14:17:15,707 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2021-01-26 14:17:15,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 02:17:15 BoogieIcfgContainer [2021-01-26 14:17:15,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 14:17:15,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 14:17:15,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 14:17:15,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 14:17:15,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 02:17:13" (1/3) ... [2021-01-26 14:17:15,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff3ead7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 02:17:15, skipping insertion in model container [2021-01-26 14:17:15,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 02:17:14" (2/3) ... [2021-01-26 14:17:15,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff3ead7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 02:17:15, skipping insertion in model container [2021-01-26 14:17:15,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 02:17:15" (3/3) ... [2021-01-26 14:17:15,723 INFO L111 eAbstractionObserver]: Analyzing ICFG indexer.i [2021-01-26 14:17:15,741 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 14:17:15,741 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 14:17:15,745 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 14:17:15,746 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 14:17:15,807 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,808 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,808 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,808 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,808 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,808 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,809 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,809 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,809 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~tid~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,809 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~tid~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,810 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,810 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,810 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,810 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,810 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,811 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,814 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,814 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,814 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,815 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,816 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,816 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,816 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,816 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~tid~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,817 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,817 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~tid~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,817 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,817 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,818 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,818 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,818 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,819 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,819 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,819 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,819 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,819 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,820 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,820 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,821 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,821 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,821 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,822 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,822 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,822 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,823 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~tid~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,823 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,823 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,824 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~tid~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,824 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,824 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,824 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,824 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,825 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,825 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,825 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,825 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,825 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,826 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,826 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,826 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,826 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,826 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,827 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,827 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,830 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,831 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,831 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,831 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,831 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,831 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,832 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,833 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,833 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,833 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,834 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,834 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,834 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,834 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,835 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,835 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,835 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,836 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,837 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,837 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,837 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,837 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,838 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~new_val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,838 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,838 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,838 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,850 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,851 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,851 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,851 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,851 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~new_val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,851 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,851 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,852 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,852 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,852 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,852 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,852 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,853 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,853 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,853 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,854 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,854 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,855 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,856 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,856 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,856 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,856 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,857 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,858 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,858 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,858 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,858 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,859 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~new_val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,859 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,859 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~new_val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,859 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,859 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,860 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,860 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,860 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,861 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,861 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,861 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,861 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,862 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,862 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,862 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,862 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,862 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,863 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,863 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,864 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,864 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,864 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,865 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,865 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,865 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,865 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,866 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,868 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,868 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,868 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,868 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,869 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,869 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,869 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,869 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~new_val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,869 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,870 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,870 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,870 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~new_val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,870 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,871 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,871 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,871 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,871 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,871 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,872 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,872 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,872 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,872 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,873 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,873 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,873 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,874 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,874 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,874 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,877 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,877 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,877 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,877 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,878 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,878 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,878 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,879 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,879 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,879 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,882 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,882 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,882 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~new_val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,882 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,883 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,883 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~h~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,883 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~h not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,883 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,884 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~ret_val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,884 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,884 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,884 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,884 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~val not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,885 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,885 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~m~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,885 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,885 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,885 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,886 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,886 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~tid~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,886 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,886 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,887 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,887 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_cas_~tab.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,887 WARN L313 ript$VariableManager]: TermVariabe thread_routineThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,887 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,888 WARN L313 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 14:17:15,897 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-01-26 14:17:15,911 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-26 14:17:15,935 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 14:17:15,935 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 14:17:15,935 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 14:17:15,935 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 14:17:15,935 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 14:17:15,936 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 14:17:15,936 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 14:17:15,936 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 14:17:15,950 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 114 transitions, 236 flow [2021-01-26 14:17:16,022 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1173 states, 1166 states have (on average 2.242710120068611) internal successors, (2615), 1172 states have internal predecessors, (2615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 1173 states, 1166 states have (on average 2.242710120068611) internal successors, (2615), 1172 states have internal predecessors, (2615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:16,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-26 14:17:16,040 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:16,041 INFO L504 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:16,042 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:16,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:16,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1689694122, now seen corresponding path program 1 times [2021-01-26 14:17:16,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:16,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846351462] [2021-01-26 14:17:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:16,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:16,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846351462] [2021-01-26 14:17:16,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 14:17:16,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-26 14:17:16,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419079214] [2021-01-26 14:17:16,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-26 14:17:16,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:16,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-26 14:17:16,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-26 14:17:16,304 INFO L87 Difference]: Start difference. First operand has 1173 states, 1166 states have (on average 2.242710120068611) internal successors, (2615), 1172 states have internal predecessors, (2615), 0 states have call successors, (0), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:16,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:16,356 INFO L93 Difference]: Finished difference Result 1127 states and 2257 transitions. [2021-01-26 14:17:16,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-26 14:17:16,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-01-26 14:17:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:16,387 INFO L225 Difference]: With dead ends: 1127 [2021-01-26 14:17:16,387 INFO L226 Difference]: Without dead ends: 1067 [2021-01-26 14:17:16,389 INFO L769 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 [2021-01-26 14:17:16,389 INFO L78 Accepts]: Start accepts. Automaton has 1067 states. Word has length 32 [2021-01-26 14:17:16,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:16,391 INFO L481 AbstractCegarLoop]: Abstraction has 1067 states. [2021-01-26 14:17:16,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:16,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states. [2021-01-26 14:17:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-26 14:17:16,394 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:16,394 INFO L504 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:16,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 14:17:16,395 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:16,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:16,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2099714549, now seen corresponding path program 1 times [2021-01-26 14:17:16,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:16,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134223489] [2021-01-26 14:17:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:16,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134223489] [2021-01-26 14:17:16,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 14:17:16,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-26 14:17:16,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53154106] [2021-01-26 14:17:16,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-26 14:17:16,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:16,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-26 14:17:16,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-26 14:17:16,532 INFO L87 Difference]: Start difference. First operand 1067 states. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:16,617 INFO L93 Difference]: Finished difference Result 631 states and 1210 transitions. [2021-01-26 14:17:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-26 14:17:16,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-01-26 14:17:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:16,622 INFO L225 Difference]: With dead ends: 631 [2021-01-26 14:17:16,622 INFO L226 Difference]: Without dead ends: 631 [2021-01-26 14:17:16,623 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-26 14:17:16,623 INFO L78 Accepts]: Start accepts. Automaton has 631 states. Word has length 32 [2021-01-26 14:17:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:16,624 INFO L481 AbstractCegarLoop]: Abstraction has 631 states. [2021-01-26 14:17:16,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:16,624 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2021-01-26 14:17:16,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-26 14:17:16,626 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:16,626 INFO L504 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:16,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 14:17:16,627 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:16,628 INFO L82 PathProgramCache]: Analyzing trace with hash 860934943, now seen corresponding path program 1 times [2021-01-26 14:17:16,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:16,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312734684] [2021-01-26 14:17:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:16,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312734684] [2021-01-26 14:17:16,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539381097] [2021-01-26 14:17:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:16,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-26 14:17:16,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:17,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:17,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-01-26 14:17:17,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380103313] [2021-01-26 14:17:17,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 14:17:17,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:17,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 14:17:17,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-26 14:17:17,018 INFO L87 Difference]: Start difference. First operand 631 states. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:17,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:17,160 INFO L93 Difference]: Finished difference Result 636 states and 1215 transitions. [2021-01-26 14:17:17,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-26 14:17:17,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-01-26 14:17:17,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:17,165 INFO L225 Difference]: With dead ends: 636 [2021-01-26 14:17:17,166 INFO L226 Difference]: Without dead ends: 636 [2021-01-26 14:17:17,166 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-26 14:17:17,167 INFO L78 Accepts]: Start accepts. Automaton has 636 states. Word has length 37 [2021-01-26 14:17:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:17,167 INFO L481 AbstractCegarLoop]: Abstraction has 636 states. [2021-01-26 14:17:17,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:17,168 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states. [2021-01-26 14:17:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 14:17:17,169 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:17,170 INFO L504 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:17,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-26 14:17:17,384 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:17,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:17,386 INFO L82 PathProgramCache]: Analyzing trace with hash -419544011, now seen corresponding path program 2 times [2021-01-26 14:17:17,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:17,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391954975] [2021-01-26 14:17:17,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:17,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391954975] [2021-01-26 14:17:17,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754285153] [2021-01-26 14:17:17,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:17,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-26 14:17:17,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:17,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-26 14:17:17,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:17,781 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:17,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:17,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-01-26 14:17:17,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680574957] [2021-01-26 14:17:17,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-26 14:17:17,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:17,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-26 14:17:17,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-26 14:17:17,784 INFO L87 Difference]: Start difference. First operand 636 states. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:17,973 INFO L93 Difference]: Finished difference Result 641 states and 1220 transitions. [2021-01-26 14:17:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 14:17:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-26 14:17:17,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:17,981 INFO L225 Difference]: With dead ends: 641 [2021-01-26 14:17:17,982 INFO L226 Difference]: Without dead ends: 641 [2021-01-26 14:17:17,982 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-01-26 14:17:17,983 INFO L78 Accepts]: Start accepts. Automaton has 641 states. Word has length 42 [2021-01-26 14:17:17,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:17,983 INFO L481 AbstractCegarLoop]: Abstraction has 641 states. [2021-01-26 14:17:17,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:17,984 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states. [2021-01-26 14:17:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 14:17:17,985 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:17,986 INFO L504 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:18,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:18,202 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:18,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:18,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1889145055, now seen corresponding path program 3 times [2021-01-26 14:17:18,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:18,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044124227] [2021-01-26 14:17:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:18,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044124227] [2021-01-26 14:17:18,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851774890] [2021-01-26 14:17:18,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:18,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-01-26 14:17:18,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:18,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-26 14:17:18,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:18,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:18,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-01-26 14:17:18,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864554220] [2021-01-26 14:17:18,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-01-26 14:17:18,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:18,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-01-26 14:17:18,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-01-26 14:17:18,548 INFO L87 Difference]: Start difference. First operand 641 states. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:18,745 INFO L93 Difference]: Finished difference Result 646 states and 1225 transitions. [2021-01-26 14:17:18,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-26 14:17:18,746 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-26 14:17:18,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:18,752 INFO L225 Difference]: With dead ends: 646 [2021-01-26 14:17:18,752 INFO L226 Difference]: Without dead ends: 646 [2021-01-26 14:17:18,754 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-01-26 14:17:18,754 INFO L78 Accepts]: Start accepts. Automaton has 646 states. Word has length 47 [2021-01-26 14:17:18,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:18,754 INFO L481 AbstractCegarLoop]: Abstraction has 646 states. [2021-01-26 14:17:18,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:18,755 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states. [2021-01-26 14:17:18,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-26 14:17:18,762 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:18,762 INFO L504 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:18,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:18,977 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:18,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:18,978 INFO L82 PathProgramCache]: Analyzing trace with hash -292184459, now seen corresponding path program 4 times [2021-01-26 14:17:18,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:18,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344291845] [2021-01-26 14:17:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:19,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344291845] [2021-01-26 14:17:19,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16653472] [2021-01-26 14:17:19,169 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:19,273 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-26 14:17:19,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:19,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-26 14:17:19,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:19,363 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:19,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:19,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-01-26 14:17:19,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920099349] [2021-01-26 14:17:19,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-26 14:17:19,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:19,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-26 14:17:19,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-26 14:17:19,365 INFO L87 Difference]: Start difference. First operand 646 states. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:19,629 INFO L93 Difference]: Finished difference Result 651 states and 1230 transitions. [2021-01-26 14:17:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-01-26 14:17:19,632 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-26 14:17:19,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:19,636 INFO L225 Difference]: With dead ends: 651 [2021-01-26 14:17:19,636 INFO L226 Difference]: Without dead ends: 651 [2021-01-26 14:17:19,643 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2021-01-26 14:17:19,643 INFO L78 Accepts]: Start accepts. Automaton has 651 states. Word has length 52 [2021-01-26 14:17:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:19,644 INFO L481 AbstractCegarLoop]: Abstraction has 651 states. [2021-01-26 14:17:19,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states. [2021-01-26 14:17:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-26 14:17:19,646 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:19,646 INFO L504 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:19,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:19,847 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:19,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:19,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1866391905, now seen corresponding path program 5 times [2021-01-26 14:17:19,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:19,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092884802] [2021-01-26 14:17:19,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:19,993 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:19,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092884802] [2021-01-26 14:17:19,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840419285] [2021-01-26 14:17:19,994 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:20,104 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-01-26 14:17:20,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:20,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-26 14:17:20,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:20,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:20,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2021-01-26 14:17:20,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387553030] [2021-01-26 14:17:20,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-26 14:17:20,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:20,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-26 14:17:20,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-26 14:17:20,178 INFO L87 Difference]: Start difference. First operand 651 states. Second operand has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:20,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:20,477 INFO L93 Difference]: Finished difference Result 656 states and 1235 transitions. [2021-01-26 14:17:20,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-26 14:17:20,478 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-26 14:17:20,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:20,486 INFO L225 Difference]: With dead ends: 656 [2021-01-26 14:17:20,486 INFO L226 Difference]: Without dead ends: 656 [2021-01-26 14:17:20,487 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=404, Unknown=0, NotChecked=0, Total=600 [2021-01-26 14:17:20,487 INFO L78 Accepts]: Start accepts. Automaton has 656 states. Word has length 57 [2021-01-26 14:17:20,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:20,488 INFO L481 AbstractCegarLoop]: Abstraction has 656 states. [2021-01-26 14:17:20,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:20,488 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states. [2021-01-26 14:17:20,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-26 14:17:20,489 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:20,489 INFO L504 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:20,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-26 14:17:20,704 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:20,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:20,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1165043893, now seen corresponding path program 6 times [2021-01-26 14:17:20,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:20,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008934779] [2021-01-26 14:17:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:20,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008934779] [2021-01-26 14:17:20,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663298728] [2021-01-26 14:17:20,962 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:21,117 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-01-26 14:17:21,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:21,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-26 14:17:21,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:21,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:21,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2021-01-26 14:17:21,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925624124] [2021-01-26 14:17:21,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-01-26 14:17:21,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:21,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-01-26 14:17:21,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-01-26 14:17:21,187 INFO L87 Difference]: Start difference. First operand 656 states. Second operand has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:21,533 INFO L93 Difference]: Finished difference Result 661 states and 1240 transitions. [2021-01-26 14:17:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-26 14:17:21,534 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-01-26 14:17:21,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:21,539 INFO L225 Difference]: With dead ends: 661 [2021-01-26 14:17:21,539 INFO L226 Difference]: Without dead ends: 661 [2021-01-26 14:17:21,540 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2021-01-26 14:17:21,541 INFO L78 Accepts]: Start accepts. Automaton has 661 states. Word has length 62 [2021-01-26 14:17:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:21,544 INFO L481 AbstractCegarLoop]: Abstraction has 661 states. [2021-01-26 14:17:21,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states. [2021-01-26 14:17:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-26 14:17:21,545 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:21,545 INFO L504 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:21,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:21,761 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:21,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:21,762 INFO L82 PathProgramCache]: Analyzing trace with hash 885128287, now seen corresponding path program 7 times [2021-01-26 14:17:21,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:21,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915433024] [2021-01-26 14:17:21,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:22,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915433024] [2021-01-26 14:17:22,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833923542] [2021-01-26 14:17:22,037 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:22,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-26 14:17:22,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:22,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:22,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2021-01-26 14:17:22,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577443170] [2021-01-26 14:17:22,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-26 14:17:22,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:22,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-26 14:17:22,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-01-26 14:17:22,231 INFO L87 Difference]: Start difference. First operand 661 states. Second operand has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:22,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:22,671 INFO L93 Difference]: Finished difference Result 666 states and 1245 transitions. [2021-01-26 14:17:22,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-26 14:17:22,672 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-01-26 14:17:22,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:22,676 INFO L225 Difference]: With dead ends: 666 [2021-01-26 14:17:22,676 INFO L226 Difference]: Without dead ends: 666 [2021-01-26 14:17:22,677 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=716, Unknown=0, NotChecked=0, Total=1056 [2021-01-26 14:17:22,677 INFO L78 Accepts]: Start accepts. Automaton has 666 states. Word has length 67 [2021-01-26 14:17:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:22,677 INFO L481 AbstractCegarLoop]: Abstraction has 666 states. [2021-01-26 14:17:22,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states. [2021-01-26 14:17:22,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-01-26 14:17:22,678 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:22,679 INFO L504 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:22,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:22,893 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:22,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:22,894 INFO L82 PathProgramCache]: Analyzing trace with hash -2011897099, now seen corresponding path program 8 times [2021-01-26 14:17:22,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:22,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628491979] [2021-01-26 14:17:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:23,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628491979] [2021-01-26 14:17:23,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894260445] [2021-01-26 14:17:23,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:23,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-26 14:17:23,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:23,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-26 14:17:23,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:23,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:23,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2021-01-26 14:17:23,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179246296] [2021-01-26 14:17:23,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-01-26 14:17:23,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:23,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-01-26 14:17:23,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2021-01-26 14:17:23,347 INFO L87 Difference]: Start difference. First operand 666 states. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:23,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:23,858 INFO L93 Difference]: Finished difference Result 671 states and 1250 transitions. [2021-01-26 14:17:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-26 14:17:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-01-26 14:17:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:23,865 INFO L225 Difference]: With dead ends: 671 [2021-01-26 14:17:23,865 INFO L226 Difference]: Without dead ends: 671 [2021-01-26 14:17:23,866 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=427, Invalid=905, Unknown=0, NotChecked=0, Total=1332 [2021-01-26 14:17:23,866 INFO L78 Accepts]: Start accepts. Automaton has 671 states. Word has length 72 [2021-01-26 14:17:23,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:23,867 INFO L481 AbstractCegarLoop]: Abstraction has 671 states. [2021-01-26 14:17:23,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:23,867 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states. [2021-01-26 14:17:23,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-01-26 14:17:23,870 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:23,871 INFO L504 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:24,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-26 14:17:24,081 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:24,082 INFO L82 PathProgramCache]: Analyzing trace with hash -224876001, now seen corresponding path program 9 times [2021-01-26 14:17:24,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:24,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062353852] [2021-01-26 14:17:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:24,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062353852] [2021-01-26 14:17:24,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747434699] [2021-01-26 14:17:24,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:24,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-01-26 14:17:24,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:24,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 20 conjunts are in the unsatisfiable core [2021-01-26 14:17:24,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:24,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:24,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2021-01-26 14:17:24,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633152809] [2021-01-26 14:17:24,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-01-26 14:17:24,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:24,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-01-26 14:17:24,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-01-26 14:17:24,737 INFO L87 Difference]: Start difference. First operand 671 states. Second operand has 23 states, 23 states have (on average 3.4347826086956523) internal successors, (79), 23 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:25,325 INFO L93 Difference]: Finished difference Result 676 states and 1255 transitions. [2021-01-26 14:17:25,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-26 14:17:25,325 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4347826086956523) internal successors, (79), 23 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-01-26 14:17:25,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:25,329 INFO L225 Difference]: With dead ends: 676 [2021-01-26 14:17:25,330 INFO L226 Difference]: Without dead ends: 676 [2021-01-26 14:17:25,331 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2021-01-26 14:17:25,331 INFO L78 Accepts]: Start accepts. Automaton has 676 states. Word has length 77 [2021-01-26 14:17:25,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:25,331 INFO L481 AbstractCegarLoop]: Abstraction has 676 states. [2021-01-26 14:17:25,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.4347826086956523) internal successors, (79), 23 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:25,332 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states. [2021-01-26 14:17:25,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-01-26 14:17:25,337 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:25,337 INFO L504 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:25,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:25,550 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:25,552 INFO L82 PathProgramCache]: Analyzing trace with hash 2114243893, now seen corresponding path program 10 times [2021-01-26 14:17:25,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:25,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677806817] [2021-01-26 14:17:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:25,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677806817] [2021-01-26 14:17:25,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263502568] [2021-01-26 14:17:25,969 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:26,066 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-26 14:17:26,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:26,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 22 conjunts are in the unsatisfiable core [2021-01-26 14:17:26,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:26,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:26,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2021-01-26 14:17:26,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563754707] [2021-01-26 14:17:26,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-26 14:17:26,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:26,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-26 14:17:26,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-01-26 14:17:26,149 INFO L87 Difference]: Start difference. First operand 676 states. Second operand has 25 states, 25 states have (on average 3.36) internal successors, (84), 25 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:26,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:26,811 INFO L93 Difference]: Finished difference Result 681 states and 1260 transitions. [2021-01-26 14:17:26,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-26 14:17:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.36) internal successors, (84), 25 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-01-26 14:17:26,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:26,815 INFO L225 Difference]: With dead ends: 681 [2021-01-26 14:17:26,816 INFO L226 Difference]: Without dead ends: 681 [2021-01-26 14:17:26,817 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=631, Invalid=1349, Unknown=0, NotChecked=0, Total=1980 [2021-01-26 14:17:26,817 INFO L78 Accepts]: Start accepts. Automaton has 681 states. Word has length 82 [2021-01-26 14:17:26,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:26,817 INFO L481 AbstractCegarLoop]: Abstraction has 681 states. [2021-01-26 14:17:26,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.36) internal successors, (84), 25 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states. [2021-01-26 14:17:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-01-26 14:17:26,821 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:26,822 INFO L504 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:27,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:27,035 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:27,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:27,036 INFO L82 PathProgramCache]: Analyzing trace with hash 356591583, now seen corresponding path program 11 times [2021-01-26 14:17:27,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:27,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516689758] [2021-01-26 14:17:27,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 286 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:27,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516689758] [2021-01-26 14:17:27,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476502757] [2021-01-26 14:17:27,422 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:27,535 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-01-26 14:17:27,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:27,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-01-26 14:17:27,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 286 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:27,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:27,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2021-01-26 14:17:27,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629206081] [2021-01-26 14:17:27,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-01-26 14:17:27,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:27,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-01-26 14:17:27,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2021-01-26 14:17:27,610 INFO L87 Difference]: Start difference. First operand 681 states. Second operand has 27 states, 27 states have (on average 3.2962962962962963) internal successors, (89), 27 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:28,366 INFO L93 Difference]: Finished difference Result 686 states and 1265 transitions. [2021-01-26 14:17:28,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-26 14:17:28,368 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.2962962962962963) internal successors, (89), 27 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-01-26 14:17:28,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:28,374 INFO L225 Difference]: With dead ends: 686 [2021-01-26 14:17:28,374 INFO L226 Difference]: Without dead ends: 686 [2021-01-26 14:17:28,375 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=748, Invalid=1604, Unknown=0, NotChecked=0, Total=2352 [2021-01-26 14:17:28,376 INFO L78 Accepts]: Start accepts. Automaton has 686 states. Word has length 87 [2021-01-26 14:17:28,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:28,376 INFO L481 AbstractCegarLoop]: Abstraction has 686 states. [2021-01-26 14:17:28,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.2962962962962963) internal successors, (89), 27 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states. [2021-01-26 14:17:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-01-26 14:17:28,377 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:28,378 INFO L504 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:28,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-26 14:17:28,593 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:28,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:28,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1506076533, now seen corresponding path program 12 times [2021-01-26 14:17:28,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:28,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301771335] [2021-01-26 14:17:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:29,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301771335] [2021-01-26 14:17:29,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127958557] [2021-01-26 14:17:29,005 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:29,303 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-01-26 14:17:29,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:29,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 26 conjunts are in the unsatisfiable core [2021-01-26 14:17:29,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:29,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:29,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2021-01-26 14:17:29,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268192312] [2021-01-26 14:17:29,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-01-26 14:17:29,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:29,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-01-26 14:17:29,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2021-01-26 14:17:29,372 INFO L87 Difference]: Start difference. First operand 686 states. Second operand has 29 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 29 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:30,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:30,265 INFO L93 Difference]: Finished difference Result 691 states and 1270 transitions. [2021-01-26 14:17:30,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-26 14:17:30,269 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 29 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-01-26 14:17:30,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:30,272 INFO L225 Difference]: With dead ends: 691 [2021-01-26 14:17:30,273 INFO L226 Difference]: Without dead ends: 691 [2021-01-26 14:17:30,274 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=875, Invalid=1881, Unknown=0, NotChecked=0, Total=2756 [2021-01-26 14:17:30,274 INFO L78 Accepts]: Start accepts. Automaton has 691 states. Word has length 92 [2021-01-26 14:17:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:30,275 INFO L481 AbstractCegarLoop]: Abstraction has 691 states. [2021-01-26 14:17:30,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 29 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states. [2021-01-26 14:17:30,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-01-26 14:17:30,276 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:30,276 INFO L504 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:30,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-26 14:17:30,492 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:30,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:30,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1555527071, now seen corresponding path program 13 times [2021-01-26 14:17:30,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:30,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788220021] [2021-01-26 14:17:30,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 403 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:30,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788220021] [2021-01-26 14:17:30,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009921647] [2021-01-26 14:17:30,965 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:31,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 28 conjunts are in the unsatisfiable core [2021-01-26 14:17:31,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 403 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:31,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:31,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2021-01-26 14:17:31,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151139665] [2021-01-26 14:17:31,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-01-26 14:17:31,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:31,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-01-26 14:17:31,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2021-01-26 14:17:31,138 INFO L87 Difference]: Start difference. First operand 691 states. Second operand has 31 states, 31 states have (on average 3.193548387096774) internal successors, (99), 31 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:32,105 INFO L93 Difference]: Finished difference Result 696 states and 1275 transitions. [2021-01-26 14:17:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-01-26 14:17:32,105 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.193548387096774) internal successors, (99), 31 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-01-26 14:17:32,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:32,109 INFO L225 Difference]: With dead ends: 696 [2021-01-26 14:17:32,110 INFO L226 Difference]: Without dead ends: 696 [2021-01-26 14:17:32,114 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1012, Invalid=2180, Unknown=0, NotChecked=0, Total=3192 [2021-01-26 14:17:32,114 INFO L78 Accepts]: Start accepts. Automaton has 696 states. Word has length 97 [2021-01-26 14:17:32,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:32,114 INFO L481 AbstractCegarLoop]: Abstraction has 696 states. [2021-01-26 14:17:32,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.193548387096774) internal successors, (99), 31 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states. [2021-01-26 14:17:32,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-01-26 14:17:32,116 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:32,116 INFO L504 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:32,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-26 14:17:32,331 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:32,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:32,332 INFO L82 PathProgramCache]: Analyzing trace with hash -119983691, now seen corresponding path program 14 times [2021-01-26 14:17:32,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:32,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872758818] [2021-01-26 14:17:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:32,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872758818] [2021-01-26 14:17:32,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096116485] [2021-01-26 14:17:32,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:32,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-26 14:17:32,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:32,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 30 conjunts are in the unsatisfiable core [2021-01-26 14:17:32,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:33,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:33,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2021-01-26 14:17:33,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54601584] [2021-01-26 14:17:33,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-01-26 14:17:33,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:33,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-01-26 14:17:33,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-01-26 14:17:33,058 INFO L87 Difference]: Start difference. First operand 696 states. Second operand has 33 states, 33 states have (on average 3.1515151515151514) internal successors, (104), 33 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:34,091 INFO L93 Difference]: Finished difference Result 701 states and 1280 transitions. [2021-01-26 14:17:34,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-01-26 14:17:34,092 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.1515151515151514) internal successors, (104), 33 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-01-26 14:17:34,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:34,096 INFO L225 Difference]: With dead ends: 701 [2021-01-26 14:17:34,096 INFO L226 Difference]: Without dead ends: 701 [2021-01-26 14:17:34,099 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1159, Invalid=2501, Unknown=0, NotChecked=0, Total=3660 [2021-01-26 14:17:34,099 INFO L78 Accepts]: Start accepts. Automaton has 701 states. Word has length 102 [2021-01-26 14:17:34,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:34,100 INFO L481 AbstractCegarLoop]: Abstraction has 701 states. [2021-01-26 14:17:34,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 3.1515151515151514) internal successors, (104), 33 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states. [2021-01-26 14:17:34,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-26 14:17:34,102 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:34,102 INFO L504 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:34,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:34,318 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:34,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:34,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1107848353, now seen corresponding path program 15 times [2021-01-26 14:17:34,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:34,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431864096] [2021-01-26 14:17:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:35,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431864096] [2021-01-26 14:17:35,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851691742] [2021-01-26 14:17:35,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:35,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-01-26 14:17:35,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:35,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 32 conjunts are in the unsatisfiable core [2021-01-26 14:17:35,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:35,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:35,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2021-01-26 14:17:35,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878708135] [2021-01-26 14:17:35,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-01-26 14:17:35,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:35,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-01-26 14:17:35,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2021-01-26 14:17:35,684 INFO L87 Difference]: Start difference. First operand 701 states. Second operand has 35 states, 35 states have (on average 3.1142857142857143) internal successors, (109), 35 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:36,796 INFO L93 Difference]: Finished difference Result 706 states and 1285 transitions. [2021-01-26 14:17:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-01-26 14:17:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.1142857142857143) internal successors, (109), 35 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-26 14:17:36,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:36,801 INFO L225 Difference]: With dead ends: 706 [2021-01-26 14:17:36,802 INFO L226 Difference]: Without dead ends: 706 [2021-01-26 14:17:36,803 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1316, Invalid=2844, Unknown=0, NotChecked=0, Total=4160 [2021-01-26 14:17:36,803 INFO L78 Accepts]: Start accepts. Automaton has 706 states. Word has length 107 [2021-01-26 14:17:36,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:36,804 INFO L481 AbstractCegarLoop]: Abstraction has 706 states. [2021-01-26 14:17:36,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.1142857142857143) internal successors, (109), 35 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2021-01-26 14:17:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-26 14:17:36,805 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:36,805 INFO L504 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:37,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-26 14:17:37,020 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:37,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:37,021 INFO L82 PathProgramCache]: Analyzing trace with hash 600157173, now seen corresponding path program 16 times [2021-01-26 14:17:37,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:37,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573612777] [2021-01-26 14:17:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:37,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573612777] [2021-01-26 14:17:37,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81508799] [2021-01-26 14:17:37,667 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:37,771 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-26 14:17:37,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:37,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 34 conjunts are in the unsatisfiable core [2021-01-26 14:17:37,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:37,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:37,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2021-01-26 14:17:37,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416847513] [2021-01-26 14:17:37,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-01-26 14:17:37,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:37,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-01-26 14:17:37,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=972, Unknown=0, NotChecked=0, Total=1332 [2021-01-26 14:17:37,851 INFO L87 Difference]: Start difference. First operand 706 states. Second operand has 37 states, 37 states have (on average 3.081081081081081) internal successors, (114), 37 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:39,084 INFO L93 Difference]: Finished difference Result 711 states and 1290 transitions. [2021-01-26 14:17:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-01-26 14:17:39,084 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.081081081081081) internal successors, (114), 37 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-01-26 14:17:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:39,088 INFO L225 Difference]: With dead ends: 711 [2021-01-26 14:17:39,089 INFO L226 Difference]: Without dead ends: 711 [2021-01-26 14:17:39,090 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1483, Invalid=3209, Unknown=0, NotChecked=0, Total=4692 [2021-01-26 14:17:39,090 INFO L78 Accepts]: Start accepts. Automaton has 711 states. Word has length 112 [2021-01-26 14:17:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:39,091 INFO L481 AbstractCegarLoop]: Abstraction has 711 states. [2021-01-26 14:17:39,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 3.081081081081081) internal successors, (114), 37 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states. [2021-01-26 14:17:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-01-26 14:17:39,093 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:39,093 INFO L504 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:39,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-26 14:17:39,300 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:39,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:39,301 INFO L82 PathProgramCache]: Analyzing trace with hash 587039007, now seen corresponding path program 17 times [2021-01-26 14:17:39,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:39,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902201737] [2021-01-26 14:17:39,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 0 proven. 697 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:40,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902201737] [2021-01-26 14:17:40,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403821818] [2021-01-26 14:17:40,077 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:40,381 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-01-26 14:17:40,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:40,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 36 conjunts are in the unsatisfiable core [2021-01-26 14:17:40,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 0 proven. 697 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:40,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:40,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2021-01-26 14:17:40,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185957646] [2021-01-26 14:17:40,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-01-26 14:17:40,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:40,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-01-26 14:17:40,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=399, Invalid=1083, Unknown=0, NotChecked=0, Total=1482 [2021-01-26 14:17:40,494 INFO L87 Difference]: Start difference. First operand 711 states. Second operand has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:41,856 INFO L93 Difference]: Finished difference Result 716 states and 1295 transitions. [2021-01-26 14:17:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-01-26 14:17:41,857 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-01-26 14:17:41,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:41,859 INFO L225 Difference]: With dead ends: 716 [2021-01-26 14:17:41,860 INFO L226 Difference]: Without dead ends: 716 [2021-01-26 14:17:41,861 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1660, Invalid=3596, Unknown=0, NotChecked=0, Total=5256 [2021-01-26 14:17:41,861 INFO L78 Accepts]: Start accepts. Automaton has 716 states. Word has length 117 [2021-01-26 14:17:41,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:41,861 INFO L481 AbstractCegarLoop]: Abstraction has 716 states. [2021-01-26 14:17:41,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states. [2021-01-26 14:17:41,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-01-26 14:17:41,862 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:41,863 INFO L504 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:42,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:42,078 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:42,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:42,078 INFO L82 PathProgramCache]: Analyzing trace with hash -837921227, now seen corresponding path program 18 times [2021-01-26 14:17:42,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:42,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404552362] [2021-01-26 14:17:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 783 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:42,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404552362] [2021-01-26 14:17:42,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365633701] [2021-01-26 14:17:42,906 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:44,188 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-01-26 14:17:44,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:44,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 38 conjunts are in the unsatisfiable core [2021-01-26 14:17:44,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 783 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:44,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:44,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2021-01-26 14:17:44,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853050076] [2021-01-26 14:17:44,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-01-26 14:17:44,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:44,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-01-26 14:17:44,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=1200, Unknown=0, NotChecked=0, Total=1640 [2021-01-26 14:17:44,284 INFO L87 Difference]: Start difference. First operand 716 states. Second operand has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:45,807 INFO L93 Difference]: Finished difference Result 721 states and 1300 transitions. [2021-01-26 14:17:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-01-26 14:17:45,808 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-01-26 14:17:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:45,812 INFO L225 Difference]: With dead ends: 721 [2021-01-26 14:17:45,812 INFO L226 Difference]: Without dead ends: 721 [2021-01-26 14:17:45,814 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1847, Invalid=4005, Unknown=0, NotChecked=0, Total=5852 [2021-01-26 14:17:45,814 INFO L78 Accepts]: Start accepts. Automaton has 721 states. Word has length 122 [2021-01-26 14:17:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:45,815 INFO L481 AbstractCegarLoop]: Abstraction has 721 states. [2021-01-26 14:17:45,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 41 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states. [2021-01-26 14:17:45,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-01-26 14:17:45,817 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:45,817 INFO L504 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:46,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:46,031 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:46,032 INFO L82 PathProgramCache]: Analyzing trace with hash 717569759, now seen corresponding path program 19 times [2021-01-26 14:17:46,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:46,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329139117] [2021-01-26 14:17:46,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 874 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:46,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329139117] [2021-01-26 14:17:46,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358010888] [2021-01-26 14:17:46,925 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:47,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 40 conjunts are in the unsatisfiable core [2021-01-26 14:17:47,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 874 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:47,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:47,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2021-01-26 14:17:47,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392929276] [2021-01-26 14:17:47,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-01-26 14:17:47,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:47,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-01-26 14:17:47,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2021-01-26 14:17:47,108 INFO L87 Difference]: Start difference. First operand 721 states. Second operand has 43 states, 43 states have (on average 3.0) internal successors, (129), 43 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:48,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:48,809 INFO L93 Difference]: Finished difference Result 726 states and 1305 transitions. [2021-01-26 14:17:48,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-01-26 14:17:48,810 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 43 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have 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 [2021-01-26 14:17:48,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:48,814 INFO L225 Difference]: With dead ends: 726 [2021-01-26 14:17:48,814 INFO L226 Difference]: Without dead ends: 726 [2021-01-26 14:17:48,816 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2044, Invalid=4436, Unknown=0, NotChecked=0, Total=6480 [2021-01-26 14:17:48,816 INFO L78 Accepts]: Start accepts. Automaton has 726 states. Word has length 127 [2021-01-26 14:17:48,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:48,817 INFO L481 AbstractCegarLoop]: Abstraction has 726 states. [2021-01-26 14:17:48,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 43 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:48,817 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states. [2021-01-26 14:17:48,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-01-26 14:17:48,818 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:48,818 INFO L504 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:49,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:49,033 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:49,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:49,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1446457461, now seen corresponding path program 20 times [2021-01-26 14:17:49,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:49,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275522787] [2021-01-26 14:17:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:50,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275522787] [2021-01-26 14:17:50,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833306832] [2021-01-26 14:17:50,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:50,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-26 14:17:50,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:50,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 42 conjunts are in the unsatisfiable core [2021-01-26 14:17:50,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:50,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:50,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2021-01-26 14:17:50,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546156182] [2021-01-26 14:17:50,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-01-26 14:17:50,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:50,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-01-26 14:17:50,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=1452, Unknown=0, NotChecked=0, Total=1980 [2021-01-26 14:17:50,283 INFO L87 Difference]: Start difference. First operand 726 states. Second operand has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 45 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:51,893 INFO L93 Difference]: Finished difference Result 731 states and 1310 transitions. [2021-01-26 14:17:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-01-26 14:17:51,893 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 45 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-01-26 14:17:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:51,896 INFO L225 Difference]: With dead ends: 731 [2021-01-26 14:17:51,896 INFO L226 Difference]: Without dead ends: 731 [2021-01-26 14:17:51,897 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2251, Invalid=4889, Unknown=0, NotChecked=0, Total=7140 [2021-01-26 14:17:51,898 INFO L78 Accepts]: Start accepts. Automaton has 731 states. Word has length 132 [2021-01-26 14:17:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:51,898 INFO L481 AbstractCegarLoop]: Abstraction has 731 states. [2021-01-26 14:17:51,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.977777777777778) internal successors, (134), 45 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states. [2021-01-26 14:17:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-01-26 14:17:51,899 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:51,899 INFO L504 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:52,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-01-26 14:17:52,100 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:52,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:52,100 INFO L82 PathProgramCache]: Analyzing trace with hash -380973921, now seen corresponding path program 21 times [2021-01-26 14:17:52,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:52,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086744303] [2021-01-26 14:17:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1075 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:53,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086744303] [2021-01-26 14:17:53,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869726587] [2021-01-26 14:17:53,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:55,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-01-26 14:17:55,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:55,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 44 conjunts are in the unsatisfiable core [2021-01-26 14:17:55,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1075 backedges. 0 proven. 1071 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:55,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:55,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2021-01-26 14:17:55,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93313345] [2021-01-26 14:17:55,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-01-26 14:17:55,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:55,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-01-26 14:17:55,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=1587, Unknown=0, NotChecked=0, Total=2162 [2021-01-26 14:17:55,189 INFO L87 Difference]: Start difference. First operand 731 states. Second operand has 47 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 47 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:57,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:17:57,125 INFO L93 Difference]: Finished difference Result 736 states and 1315 transitions. [2021-01-26 14:17:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-01-26 14:17:57,126 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 47 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-01-26 14:17:57,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:17:57,131 INFO L225 Difference]: With dead ends: 736 [2021-01-26 14:17:57,131 INFO L226 Difference]: Without dead ends: 736 [2021-01-26 14:17:57,134 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1479 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2468, Invalid=5364, Unknown=0, NotChecked=0, Total=7832 [2021-01-26 14:17:57,134 INFO L78 Accepts]: Start accepts. Automaton has 736 states. Word has length 137 [2021-01-26 14:17:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:17:57,135 INFO L481 AbstractCegarLoop]: Abstraction has 736 states. [2021-01-26 14:17:57,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 47 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:17:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states. [2021-01-26 14:17:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-01-26 14:17:57,136 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:17:57,136 INFO L504 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:17:57,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-01-26 14:17:57,350 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:17:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:17:57,351 INFO L82 PathProgramCache]: Analyzing trace with hash -976995659, now seen corresponding path program 22 times [2021-01-26 14:17:57,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:17:57,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83240096] [2021-01-26 14:17:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:17:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:17:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:58,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83240096] [2021-01-26 14:17:58,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331418230] [2021-01-26 14:17:58,622 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:17:58,723 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-26 14:17:58,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:17:58,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 46 conjunts are in the unsatisfiable core [2021-01-26 14:17:58,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:17:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:17:58,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:17:58,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2021-01-26 14:17:58,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343135352] [2021-01-26 14:17:58,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-01-26 14:17:58,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:17:58,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-01-26 14:17:58,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=624, Invalid=1728, Unknown=0, NotChecked=0, Total=2352 [2021-01-26 14:17:58,820 INFO L87 Difference]: Start difference. First operand 736 states. Second operand has 49 states, 49 states have (on average 2.938775510204082) internal successors, (144), 49 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:00,976 INFO L93 Difference]: Finished difference Result 741 states and 1320 transitions. [2021-01-26 14:18:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-01-26 14:18:00,976 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.938775510204082) internal successors, (144), 49 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-01-26 14:18:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:00,980 INFO L225 Difference]: With dead ends: 741 [2021-01-26 14:18:00,980 INFO L226 Difference]: Without dead ends: 741 [2021-01-26 14:18:00,981 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1616 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2695, Invalid=5861, Unknown=0, NotChecked=0, Total=8556 [2021-01-26 14:18:00,981 INFO L78 Accepts]: Start accepts. Automaton has 741 states. Word has length 142 [2021-01-26 14:18:00,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:00,982 INFO L481 AbstractCegarLoop]: Abstraction has 741 states. [2021-01-26 14:18:00,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.938775510204082) internal successors, (144), 49 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states. [2021-01-26 14:18:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-01-26 14:18:00,983 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:00,983 INFO L504 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:01,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:01,199 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:01,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1484117409, now seen corresponding path program 23 times [2021-01-26 14:18:01,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:01,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790499946] [2021-01-26 14:18:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:02,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1288 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:02,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790499946] [2021-01-26 14:18:02,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104647719] [2021-01-26 14:18:02,465 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:03,120 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-01-26 14:18:03,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:18:03,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 48 conjunts are in the unsatisfiable core [2021-01-26 14:18:03,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:18:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1288 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:03,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:18:03,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2021-01-26 14:18:03,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664147607] [2021-01-26 14:18:03,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-01-26 14:18:03,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:18:03,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-01-26 14:18:03,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=675, Invalid=1875, Unknown=0, NotChecked=0, Total=2550 [2021-01-26 14:18:03,230 INFO L87 Difference]: Start difference. First operand 741 states. Second operand has 51 states, 51 states have (on average 2.9215686274509802) internal successors, (149), 51 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:05,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:05,610 INFO L93 Difference]: Finished difference Result 746 states and 1325 transitions. [2021-01-26 14:18:05,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-01-26 14:18:05,611 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.9215686274509802) internal successors, (149), 51 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2021-01-26 14:18:05,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:05,613 INFO L225 Difference]: With dead ends: 746 [2021-01-26 14:18:05,614 INFO L226 Difference]: Without dead ends: 746 [2021-01-26 14:18:05,614 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1759 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2932, Invalid=6380, Unknown=0, NotChecked=0, Total=9312 [2021-01-26 14:18:05,615 INFO L78 Accepts]: Start accepts. Automaton has 746 states. Word has length 147 [2021-01-26 14:18:05,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:05,615 INFO L481 AbstractCegarLoop]: Abstraction has 746 states. [2021-01-26 14:18:05,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 2.9215686274509802) internal successors, (149), 51 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:05,615 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states. [2021-01-26 14:18:05,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-01-26 14:18:05,616 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:05,617 INFO L504 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:05,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-01-26 14:18:05,831 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:05,831 INFO L82 PathProgramCache]: Analyzing trace with hash 288978165, now seen corresponding path program 24 times [2021-01-26 14:18:05,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:05,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764701185] [2021-01-26 14:18:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 1404 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:07,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764701185] [2021-01-26 14:18:07,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667096368] [2021-01-26 14:18:07,251 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:16,668 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-01-26 14:18:16,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:18:16,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 50 conjunts are in the unsatisfiable core [2021-01-26 14:18:16,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:18:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 1404 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:16,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:18:16,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 53 [2021-01-26 14:18:16,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884831434] [2021-01-26 14:18:16,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-01-26 14:18:16,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:18:16,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-01-26 14:18:16,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=728, Invalid=2028, Unknown=0, NotChecked=0, Total=2756 [2021-01-26 14:18:16,887 INFO L87 Difference]: Start difference. First operand 746 states. Second operand has 53 states, 53 states have (on average 2.9056603773584904) internal successors, (154), 53 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) [2021-01-26 14:18:19,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:19,442 INFO L93 Difference]: Finished difference Result 751 states and 1330 transitions. [2021-01-26 14:18:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-01-26 14:18:19,443 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.9056603773584904) internal successors, (154), 53 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 152 [2021-01-26 14:18:19,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:19,447 INFO L225 Difference]: With dead ends: 751 [2021-01-26 14:18:19,447 INFO L226 Difference]: Without dead ends: 751 [2021-01-26 14:18:19,449 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1908 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3179, Invalid=6921, Unknown=0, NotChecked=0, Total=10100 [2021-01-26 14:18:19,449 INFO L78 Accepts]: Start accepts. Automaton has 751 states. Word has length 152 [2021-01-26 14:18:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:19,450 INFO L481 AbstractCegarLoop]: Abstraction has 751 states. [2021-01-26 14:18:19,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.9056603773584904) internal successors, (154), 53 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) [2021-01-26 14:18:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states. [2021-01-26 14:18:19,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-01-26 14:18:19,451 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:19,451 INFO L504 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:19,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:19,666 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:19,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:19,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1551935457, now seen corresponding path program 25 times [2021-01-26 14:18:19,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:19,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985879569] [2021-01-26 14:18:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1529 backedges. 0 proven. 1525 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:21,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985879569] [2021-01-26 14:18:21,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183342813] [2021-01-26 14:18:21,347 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:21,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 52 conjunts are in the unsatisfiable core [2021-01-26 14:18:21,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:18:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1529 backedges. 0 proven. 1525 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:21,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:18:21,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 55 [2021-01-26 14:18:21,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443221087] [2021-01-26 14:18:21,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-01-26 14:18:21,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:18:21,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-01-26 14:18:21,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=783, Invalid=2187, Unknown=0, NotChecked=0, Total=2970 [2021-01-26 14:18:21,567 INFO L87 Difference]: Start difference. First operand 751 states. Second operand has 55 states, 55 states have (on average 2.890909090909091) internal successors, (159), 55 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:24,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:24,304 INFO L93 Difference]: Finished difference Result 756 states and 1335 transitions. [2021-01-26 14:18:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-01-26 14:18:24,304 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.890909090909091) internal successors, (159), 55 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-01-26 14:18:24,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:24,307 INFO L225 Difference]: With dead ends: 756 [2021-01-26 14:18:24,307 INFO L226 Difference]: Without dead ends: 756 [2021-01-26 14:18:24,308 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2063 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=3436, Invalid=7484, Unknown=0, NotChecked=0, Total=10920 [2021-01-26 14:18:24,309 INFO L78 Accepts]: Start accepts. Automaton has 756 states. Word has length 157 [2021-01-26 14:18:24,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:24,309 INFO L481 AbstractCegarLoop]: Abstraction has 756 states. [2021-01-26 14:18:24,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.890909090909091) internal successors, (159), 55 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:24,310 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states. [2021-01-26 14:18:24,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-01-26 14:18:24,310 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:24,311 INFO L504 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:24,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-01-26 14:18:24,525 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:24,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:24,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1478156085, now seen corresponding path program 26 times [2021-01-26 14:18:24,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:24,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206809616] [2021-01-26 14:18:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 1651 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:26,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206809616] [2021-01-26 14:18:26,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086515458] [2021-01-26 14:18:26,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:26,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-26 14:18:26,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:18:26,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 54 conjunts are in the unsatisfiable core [2021-01-26 14:18:26,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:18:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 0 proven. 1651 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:26,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:18:26,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 57 [2021-01-26 14:18:26,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862852929] [2021-01-26 14:18:26,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-01-26 14:18:26,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:18:26,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-01-26 14:18:26,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=840, Invalid=2352, Unknown=0, NotChecked=0, Total=3192 [2021-01-26 14:18:26,399 INFO L87 Difference]: Start difference. First operand 756 states. Second operand has 57 states, 57 states have (on average 2.8771929824561404) internal successors, (164), 57 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:29,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:29,409 INFO L93 Difference]: Finished difference Result 761 states and 1340 transitions. [2021-01-26 14:18:29,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-01-26 14:18:29,410 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 2.8771929824561404) internal successors, (164), 57 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2021-01-26 14:18:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:29,413 INFO L225 Difference]: With dead ends: 761 [2021-01-26 14:18:29,413 INFO L226 Difference]: Without dead ends: 761 [2021-01-26 14:18:29,414 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2224 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3703, Invalid=8069, Unknown=0, NotChecked=0, Total=11772 [2021-01-26 14:18:29,414 INFO L78 Accepts]: Start accepts. Automaton has 761 states. Word has length 162 [2021-01-26 14:18:29,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:29,414 INFO L481 AbstractCegarLoop]: Abstraction has 761 states. [2021-01-26 14:18:29,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 2.8771929824561404) internal successors, (164), 57 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:29,414 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states. [2021-01-26 14:18:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-01-26 14:18:29,415 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:29,419 INFO L504 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:29,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-01-26 14:18:29,628 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:29,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:29,629 INFO L82 PathProgramCache]: Analyzing trace with hash -802794017, now seen corresponding path program 27 times [2021-01-26 14:18:29,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:29,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546141626] [2021-01-26 14:18:29,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 0 proven. 1782 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:31,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546141626] [2021-01-26 14:18:31,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388245363] [2021-01-26 14:18:31,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:35,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-01-26 14:18:35,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:18:35,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 56 conjunts are in the unsatisfiable core [2021-01-26 14:18:35,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:18:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 0 proven. 1782 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:36,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:18:36,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 59 [2021-01-26 14:18:36,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446912105] [2021-01-26 14:18:36,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-01-26 14:18:36,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:18:36,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-01-26 14:18:36,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=899, Invalid=2523, Unknown=0, NotChecked=0, Total=3422 [2021-01-26 14:18:36,015 INFO L87 Difference]: Start difference. First operand 761 states. Second operand has 59 states, 59 states have (on average 2.864406779661017) internal successors, (169), 59 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:39,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:39,163 INFO L93 Difference]: Finished difference Result 766 states and 1345 transitions. [2021-01-26 14:18:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-01-26 14:18:39,164 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.864406779661017) internal successors, (169), 59 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2021-01-26 14:18:39,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:39,167 INFO L225 Difference]: With dead ends: 766 [2021-01-26 14:18:39,167 INFO L226 Difference]: Without dead ends: 766 [2021-01-26 14:18:39,169 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2391 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=3980, Invalid=8676, Unknown=0, NotChecked=0, Total=12656 [2021-01-26 14:18:39,169 INFO L78 Accepts]: Start accepts. Automaton has 766 states. Word has length 167 [2021-01-26 14:18:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:39,169 INFO L481 AbstractCegarLoop]: Abstraction has 766 states. [2021-01-26 14:18:39,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 2.864406779661017) internal successors, (169), 59 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states. [2021-01-26 14:18:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-01-26 14:18:39,170 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:39,171 INFO L504 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:39,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-01-26 14:18:39,372 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:39,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:39,372 INFO L82 PathProgramCache]: Analyzing trace with hash 619477365, now seen corresponding path program 28 times [2021-01-26 14:18:39,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:39,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130498742] [2021-01-26 14:18:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1918 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:41,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130498742] [2021-01-26 14:18:41,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230080258] [2021-01-26 14:18:41,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:41,540 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-26 14:18:41,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:18:41,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 58 conjunts are in the unsatisfiable core [2021-01-26 14:18:41,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:18:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1918 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:41,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:18:41,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 61 [2021-01-26 14:18:41,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811281164] [2021-01-26 14:18:41,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-01-26 14:18:41,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:18:41,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-01-26 14:18:41,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=960, Invalid=2700, Unknown=0, NotChecked=0, Total=3660 [2021-01-26 14:18:41,667 INFO L87 Difference]: Start difference. First operand 766 states. Second operand has 61 states, 61 states have (on average 2.8524590163934427) internal successors, (174), 61 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:45,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:45,109 INFO L93 Difference]: Finished difference Result 771 states and 1350 transitions. [2021-01-26 14:18:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-01-26 14:18:45,110 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 2.8524590163934427) internal successors, (174), 61 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-01-26 14:18:45,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:45,114 INFO L225 Difference]: With dead ends: 771 [2021-01-26 14:18:45,114 INFO L226 Difference]: Without dead ends: 771 [2021-01-26 14:18:45,115 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2564 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4267, Invalid=9305, Unknown=0, NotChecked=0, Total=13572 [2021-01-26 14:18:45,115 INFO L78 Accepts]: Start accepts. Automaton has 771 states. Word has length 172 [2021-01-26 14:18:45,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:45,116 INFO L481 AbstractCegarLoop]: Abstraction has 771 states. [2021-01-26 14:18:45,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 61 states, 61 states have (on average 2.8524590163934427) internal successors, (174), 61 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states. [2021-01-26 14:18:45,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-01-26 14:18:45,117 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:45,118 INFO L504 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:45,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:45,330 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:45,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:45,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1787092065, now seen corresponding path program 29 times [2021-01-26 14:18:45,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:45,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19235368] [2021-01-26 14:18:45,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2063 backedges. 0 proven. 2059 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:47,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19235368] [2021-01-26 14:18:47,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756565407] [2021-01-26 14:18:47,468 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:18:49,476 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-01-26 14:18:49,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:18:49,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 60 conjunts are in the unsatisfiable core [2021-01-26 14:18:49,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:18:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2063 backedges. 0 proven. 2059 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:49,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:18:49,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 63 [2021-01-26 14:18:49,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521718371] [2021-01-26 14:18:49,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-01-26 14:18:49,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:18:49,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-01-26 14:18:49,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2021-01-26 14:18:49,612 INFO L87 Difference]: Start difference. First operand 771 states. Second operand has 63 states, 63 states have (on average 2.8412698412698414) internal successors, (179), 63 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:50,274 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2021-01-26 14:18:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:18:53,223 INFO L93 Difference]: Finished difference Result 776 states and 1355 transitions. [2021-01-26 14:18:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-01-26 14:18:53,228 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.8412698412698414) internal successors, (179), 63 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-01-26 14:18:53,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:18:53,241 INFO L225 Difference]: With dead ends: 776 [2021-01-26 14:18:53,241 INFO L226 Difference]: Without dead ends: 776 [2021-01-26 14:18:53,243 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2743 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=4564, Invalid=9956, Unknown=0, NotChecked=0, Total=14520 [2021-01-26 14:18:53,243 INFO L78 Accepts]: Start accepts. Automaton has 776 states. Word has length 177 [2021-01-26 14:18:53,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:18:53,243 INFO L481 AbstractCegarLoop]: Abstraction has 776 states. [2021-01-26 14:18:53,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 2.8412698412698414) internal successors, (179), 63 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:18:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states. [2021-01-26 14:18:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-01-26 14:18:53,245 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:18:53,245 INFO L504 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:18:53,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-01-26 14:18:53,461 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:18:53,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:18:53,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1389214795, now seen corresponding path program 30 times [2021-01-26 14:18:53,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:18:53,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404743869] [2021-01-26 14:18:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:18:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:18:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 0 proven. 2205 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:18:55,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404743869] [2021-01-26 14:18:55,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384441493] [2021-01-26 14:18:55,800 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:19:26,608 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-01-26 14:19:26,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:19:26,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 62 conjunts are in the unsatisfiable core [2021-01-26 14:19:26,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:19:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 0 proven. 2205 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:19:27,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:19:27,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 65 [2021-01-26 14:19:27,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105318347] [2021-01-26 14:19:27,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-01-26 14:19:27,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:19:27,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-01-26 14:19:27,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1088, Invalid=3072, Unknown=0, NotChecked=0, Total=4160 [2021-01-26 14:19:27,007 INFO L87 Difference]: Start difference. First operand 776 states. Second operand has 65 states, 65 states have (on average 2.830769230769231) internal successors, (184), 65 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:19:31,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:19:31,035 INFO L93 Difference]: Finished difference Result 781 states and 1360 transitions. [2021-01-26 14:19:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-01-26 14:19:31,036 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.830769230769231) internal successors, (184), 65 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2021-01-26 14:19:31,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:19:31,039 INFO L225 Difference]: With dead ends: 781 [2021-01-26 14:19:31,039 INFO L226 Difference]: Without dead ends: 781 [2021-01-26 14:19:31,040 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2928 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4871, Invalid=10629, Unknown=0, NotChecked=0, Total=15500 [2021-01-26 14:19:31,040 INFO L78 Accepts]: Start accepts. Automaton has 781 states. Word has length 182 [2021-01-26 14:19:31,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:19:31,041 INFO L481 AbstractCegarLoop]: Abstraction has 781 states. [2021-01-26 14:19:31,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 2.830769230769231) internal successors, (184), 65 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:19:31,041 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states. [2021-01-26 14:19:31,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-01-26 14:19:31,042 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:19:31,042 INFO L504 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:19:31,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:19:31,256 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:19:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:19:31,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1871068833, now seen corresponding path program 31 times [2021-01-26 14:19:31,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:19:31,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551710708] [2021-01-26 14:19:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:19:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:19:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:19:33,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551710708] [2021-01-26 14:19:33,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432026716] [2021-01-26 14:19:33,793 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:19:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:19:33,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 64 conjunts are in the unsatisfiable core [2021-01-26 14:19:33,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:19:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:19:34,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:19:34,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 67 [2021-01-26 14:19:34,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176842844] [2021-01-26 14:19:34,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-01-26 14:19:34,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:19:34,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-01-26 14:19:34,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1155, Invalid=3267, Unknown=0, NotChecked=0, Total=4422 [2021-01-26 14:19:34,101 INFO L87 Difference]: Start difference. First operand 781 states. Second operand has 67 states, 67 states have (on average 2.8208955223880596) internal successors, (189), 67 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:19:38,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:19:38,366 INFO L93 Difference]: Finished difference Result 786 states and 1365 transitions. [2021-01-26 14:19:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-01-26 14:19:38,367 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.8208955223880596) internal successors, (189), 67 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-01-26 14:19:38,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:19:38,368 INFO L225 Difference]: With dead ends: 786 [2021-01-26 14:19:38,368 INFO L226 Difference]: Without dead ends: 786 [2021-01-26 14:19:38,370 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3119 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=5188, Invalid=11324, Unknown=0, NotChecked=0, Total=16512 [2021-01-26 14:19:38,370 INFO L78 Accepts]: Start accepts. Automaton has 786 states. Word has length 187 [2021-01-26 14:19:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:19:38,371 INFO L481 AbstractCegarLoop]: Abstraction has 786 states. [2021-01-26 14:19:38,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 2.8208955223880596) internal successors, (189), 67 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:19:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states. [2021-01-26 14:19:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-01-26 14:19:38,372 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:19:38,372 INFO L504 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:19:38,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-01-26 14:19:38,573 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:19:38,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:19:38,574 INFO L82 PathProgramCache]: Analyzing trace with hash 292568565, now seen corresponding path program 32 times [2021-01-26 14:19:38,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:19:38,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868535257] [2021-01-26 14:19:38,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:19:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:19:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 0 proven. 2512 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:19:41,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868535257] [2021-01-26 14:19:41,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528241843] [2021-01-26 14:19:41,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:19:41,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-26 14:19:41,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:19:41,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 66 conjunts are in the unsatisfiable core [2021-01-26 14:19:41,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:19:41,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 0 proven. 2512 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:19:41,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:19:41,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 69 [2021-01-26 14:19:41,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132411125] [2021-01-26 14:19:41,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-01-26 14:19:41,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:19:41,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-01-26 14:19:41,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1224, Invalid=3468, Unknown=0, NotChecked=0, Total=4692 [2021-01-26 14:19:41,470 INFO L87 Difference]: Start difference. First operand 786 states. Second operand has 69 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 69 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:19:46,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:19:46,053 INFO L93 Difference]: Finished difference Result 791 states and 1370 transitions. [2021-01-26 14:19:46,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-01-26 14:19:46,054 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 69 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2021-01-26 14:19:46,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:19:46,056 INFO L225 Difference]: With dead ends: 791 [2021-01-26 14:19:46,056 INFO L226 Difference]: Without dead ends: 791 [2021-01-26 14:19:46,057 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3316 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=5515, Invalid=12041, Unknown=0, NotChecked=0, Total=17556 [2021-01-26 14:19:46,057 INFO L78 Accepts]: Start accepts. Automaton has 791 states. Word has length 192 [2021-01-26 14:19:46,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:19:46,057 INFO L481 AbstractCegarLoop]: Abstraction has 791 states. [2021-01-26 14:19:46,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 69 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:19:46,057 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2021-01-26 14:19:46,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-01-26 14:19:46,058 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:19:46,059 INFO L504 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:19:46,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-01-26 14:19:46,264 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:19:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:19:46,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1394487071, now seen corresponding path program 33 times [2021-01-26 14:19:46,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:19:46,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798810008] [2021-01-26 14:19:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:19:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:19:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2677 backedges. 0 proven. 2673 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:19:49,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798810008] [2021-01-26 14:19:49,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820890659] [2021-01-26 14:19:49,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:20:19,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-01-26 14:20:19,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:20:20,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 68 conjunts are in the unsatisfiable core [2021-01-26 14:20:20,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:20:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2677 backedges. 0 proven. 2673 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:20:20,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:20:20,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 71 [2021-01-26 14:20:20,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452170819] [2021-01-26 14:20:20,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 71 states [2021-01-26 14:20:20,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:20:20,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-01-26 14:20:20,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1295, Invalid=3675, Unknown=0, NotChecked=0, Total=4970 [2021-01-26 14:20:20,557 INFO L87 Difference]: Start difference. First operand 791 states. Second operand has 71 states, 71 states have (on average 2.8028169014084505) internal successors, (199), 71 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:20:25,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:20:25,445 INFO L93 Difference]: Finished difference Result 796 states and 1375 transitions. [2021-01-26 14:20:25,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-01-26 14:20:25,445 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.8028169014084505) internal successors, (199), 71 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have 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 [2021-01-26 14:20:25,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:20:25,447 INFO L225 Difference]: With dead ends: 796 [2021-01-26 14:20:25,447 INFO L226 Difference]: Without dead ends: 796 [2021-01-26 14:20:25,449 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3519 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=5852, Invalid=12780, Unknown=0, NotChecked=0, Total=18632 [2021-01-26 14:20:25,449 INFO L78 Accepts]: Start accepts. Automaton has 796 states. Word has length 197 [2021-01-26 14:20:25,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:20:25,450 INFO L481 AbstractCegarLoop]: Abstraction has 796 states. [2021-01-26 14:20:25,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 71 states, 71 states have (on average 2.8028169014084505) internal successors, (199), 71 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:20:25,450 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states. [2021-01-26 14:20:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-01-26 14:20:25,451 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:20:25,452 INFO L504 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:20:25,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-01-26 14:20:25,653 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:20:25,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:20:25,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1658165195, now seen corresponding path program 34 times [2021-01-26 14:20:25,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:20:25,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035477161] [2021-01-26 14:20:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:20:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:20:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2843 backedges. 0 proven. 2839 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:20:28,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035477161] [2021-01-26 14:20:28,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767187852] [2021-01-26 14:20:28,681 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:20:28,813 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-26 14:20:28,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:20:28,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 70 conjunts are in the unsatisfiable core [2021-01-26 14:20:28,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:20:28,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2843 backedges. 0 proven. 2839 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:20:28,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:20:28,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 73 [2021-01-26 14:20:28,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061832663] [2021-01-26 14:20:28,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-01-26 14:20:28,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:20:28,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-01-26 14:20:28,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1368, Invalid=3888, Unknown=0, NotChecked=0, Total=5256 [2021-01-26 14:20:28,960 INFO L87 Difference]: Start difference. First operand 796 states. Second operand has 73 states, 73 states have (on average 2.7945205479452055) internal successors, (204), 73 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:20:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:20:33,971 INFO L93 Difference]: Finished difference Result 801 states and 1380 transitions. [2021-01-26 14:20:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-01-26 14:20:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 2.7945205479452055) internal successors, (204), 73 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2021-01-26 14:20:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:20:33,974 INFO L225 Difference]: With dead ends: 801 [2021-01-26 14:20:33,974 INFO L226 Difference]: Without dead ends: 801 [2021-01-26 14:20:33,976 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3728 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=6199, Invalid=13541, Unknown=0, NotChecked=0, Total=19740 [2021-01-26 14:20:33,976 INFO L78 Accepts]: Start accepts. Automaton has 801 states. Word has length 202 [2021-01-26 14:20:33,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:20:33,976 INFO L481 AbstractCegarLoop]: Abstraction has 801 states. [2021-01-26 14:20:33,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.7945205479452055) internal successors, (204), 73 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:20:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states. [2021-01-26 14:20:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-01-26 14:20:33,978 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:20:33,978 INFO L504 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:20:34,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-01-26 14:20:34,192 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:20:34,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:20:34,192 INFO L82 PathProgramCache]: Analyzing trace with hash 610561247, now seen corresponding path program 35 times [2021-01-26 14:20:34,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:20:34,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413738003] [2021-01-26 14:20:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:20:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:20:37,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 0 proven. 3010 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:20:37,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413738003] [2021-01-26 14:20:37,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257289204] [2021-01-26 14:20:37,461 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:21:14,209 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-01-26 14:21:14,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:21:14,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 72 conjunts are in the unsatisfiable core [2021-01-26 14:21:14,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:21:14,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3014 backedges. 0 proven. 3010 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:21:14,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:21:14,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 75 [2021-01-26 14:21:14,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585673275] [2021-01-26 14:21:14,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-01-26 14:21:14,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:21:14,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-01-26 14:21:14,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1443, Invalid=4107, Unknown=0, NotChecked=0, Total=5550 [2021-01-26 14:21:14,884 INFO L87 Difference]: Start difference. First operand 801 states. Second operand has 75 states, 75 states have (on average 2.7866666666666666) internal successors, (209), 75 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:21:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:21:20,704 INFO L93 Difference]: Finished difference Result 806 states and 1385 transitions. [2021-01-26 14:21:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-01-26 14:21:20,705 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.7866666666666666) internal successors, (209), 75 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2021-01-26 14:21:20,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:21:20,706 INFO L225 Difference]: With dead ends: 806 [2021-01-26 14:21:20,706 INFO L226 Difference]: Without dead ends: 806 [2021-01-26 14:21:20,713 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3943 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=6556, Invalid=14324, Unknown=0, NotChecked=0, Total=20880 [2021-01-26 14:21:20,713 INFO L78 Accepts]: Start accepts. Automaton has 806 states. Word has length 207 [2021-01-26 14:21:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:21:20,714 INFO L481 AbstractCegarLoop]: Abstraction has 806 states. [2021-01-26 14:21:20,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 2.7866666666666666) internal successors, (209), 75 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:21:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states. [2021-01-26 14:21:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-01-26 14:21:20,715 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:21:20,715 INFO L504 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:21:20,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-01-26 14:21:20,919 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:21:20,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:21:20,919 INFO L82 PathProgramCache]: Analyzing trace with hash 115655285, now seen corresponding path program 36 times [2021-01-26 14:21:20,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:21:20,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789784073] [2021-01-26 14:21:20,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:21:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:21:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 0 proven. 3186 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:21:24,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789784073] [2021-01-26 14:21:24,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640820600] [2021-01-26 14:21:24,645 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:22:20,651 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-01-26 14:22:20,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:22:21,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 74 conjunts are in the unsatisfiable core [2021-01-26 14:22:21,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:22:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3190 backedges. 0 proven. 3186 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:22:21,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:22:21,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 77 [2021-01-26 14:22:21,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626915047] [2021-01-26 14:22:21,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-01-26 14:22:21,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:22:21,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-01-26 14:22:21,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1520, Invalid=4332, Unknown=0, NotChecked=0, Total=5852 [2021-01-26 14:22:21,476 INFO L87 Difference]: Start difference. First operand 806 states. Second operand has 77 states, 77 states have (on average 2.779220779220779) internal successors, (214), 77 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:22:28,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:22:28,391 INFO L93 Difference]: Finished difference Result 811 states and 1390 transitions. [2021-01-26 14:22:28,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-01-26 14:22:28,392 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 2.779220779220779) internal successors, (214), 77 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2021-01-26 14:22:28,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:22:28,394 INFO L225 Difference]: With dead ends: 811 [2021-01-26 14:22:28,394 INFO L226 Difference]: Without dead ends: 811 [2021-01-26 14:22:28,395 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4164 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=6923, Invalid=15129, Unknown=0, NotChecked=0, Total=22052 [2021-01-26 14:22:28,395 INFO L78 Accepts]: Start accepts. Automaton has 811 states. Word has length 212 [2021-01-26 14:22:28,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:22:28,395 INFO L481 AbstractCegarLoop]: Abstraction has 811 states. [2021-01-26 14:22:28,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 77 states, 77 states have (on average 2.779220779220779) internal successors, (214), 77 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:22:28,396 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states. [2021-01-26 14:22:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-01-26 14:22:28,397 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:22:28,397 INFO L504 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:22:28,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-01-26 14:22:28,610 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:22:28,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:22:28,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1068991841, now seen corresponding path program 37 times [2021-01-26 14:22:28,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:22:28,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397479813] [2021-01-26 14:22:28,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:22:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:22:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3371 backedges. 0 proven. 3367 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:22:33,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397479813] [2021-01-26 14:22:33,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551536556] [2021-01-26 14:22:33,244 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:22:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:22:33,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 76 conjunts are in the unsatisfiable core [2021-01-26 14:22:33,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:22:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3371 backedges. 0 proven. 3367 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:22:33,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:22:33,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 79 [2021-01-26 14:22:33,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221791329] [2021-01-26 14:22:33,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-01-26 14:22:33,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:22:33,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-01-26 14:22:33,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1599, Invalid=4563, Unknown=0, NotChecked=0, Total=6162 [2021-01-26 14:22:33,555 INFO L87 Difference]: Start difference. First operand 811 states. Second operand has 79 states, 79 states have (on average 2.7721518987341773) internal successors, (219), 79 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:22:41,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:22:41,087 INFO L93 Difference]: Finished difference Result 816 states and 1395 transitions. [2021-01-26 14:22:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-01-26 14:22:41,088 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 2.7721518987341773) internal successors, (219), 79 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2021-01-26 14:22:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:22:41,090 INFO L225 Difference]: With dead ends: 816 [2021-01-26 14:22:41,091 INFO L226 Difference]: Without dead ends: 816 [2021-01-26 14:22:41,092 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4391 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=7300, Invalid=15956, Unknown=0, NotChecked=0, Total=23256 [2021-01-26 14:22:41,092 INFO L78 Accepts]: Start accepts. Automaton has 816 states. Word has length 217 [2021-01-26 14:22:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:22:41,092 INFO L481 AbstractCegarLoop]: Abstraction has 816 states. [2021-01-26 14:22:41,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 2.7721518987341773) internal successors, (219), 79 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:22:41,093 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states. [2021-01-26 14:22:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-01-26 14:22:41,094 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:22:41,094 INFO L504 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:22:41,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-01-26 14:22:41,295 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:22:41,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:22:41,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1339863883, now seen corresponding path program 38 times [2021-01-26 14:22:41,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:22:41,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568703561] [2021-01-26 14:22:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:22:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:22:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3557 backedges. 0 proven. 3553 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:22:46,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568703561] [2021-01-26 14:22:46,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225827761] [2021-01-26 14:22:46,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:22:46,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-26 14:22:46,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:22:46,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 78 conjunts are in the unsatisfiable core [2021-01-26 14:22:46,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:22:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3557 backedges. 0 proven. 3553 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:22:46,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:22:46,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 81 [2021-01-26 14:22:46,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413195243] [2021-01-26 14:22:46,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-01-26 14:22:46,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:22:46,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-01-26 14:22:46,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1680, Invalid=4800, Unknown=0, NotChecked=0, Total=6480 [2021-01-26 14:22:46,483 INFO L87 Difference]: Start difference. First operand 816 states. Second operand has 81 states, 81 states have (on average 2.765432098765432) internal successors, (224), 81 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:22:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:22:54,047 INFO L93 Difference]: Finished difference Result 821 states and 1400 transitions. [2021-01-26 14:22:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-01-26 14:22:54,049 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 2.765432098765432) internal successors, (224), 81 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2021-01-26 14:22:54,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:22:54,051 INFO L225 Difference]: With dead ends: 821 [2021-01-26 14:22:54,051 INFO L226 Difference]: Without dead ends: 821 [2021-01-26 14:22:54,053 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4624 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=7687, Invalid=16805, Unknown=0, NotChecked=0, Total=24492 [2021-01-26 14:22:54,053 INFO L78 Accepts]: Start accepts. Automaton has 821 states. Word has length 222 [2021-01-26 14:22:54,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:22:54,054 INFO L481 AbstractCegarLoop]: Abstraction has 821 states. [2021-01-26 14:22:54,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 2.765432098765432) internal successors, (224), 81 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:22:54,054 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states. [2021-01-26 14:22:54,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-01-26 14:22:54,055 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:22:54,055 INFO L504 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:22:54,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-01-26 14:22:54,257 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:22:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:22:54,258 INFO L82 PathProgramCache]: Analyzing trace with hash 398874719, now seen corresponding path program 39 times [2021-01-26 14:22:54,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:22:54,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731915324] [2021-01-26 14:22:54,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:22:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:22:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3748 backedges. 0 proven. 3744 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:22:59,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731915324] [2021-01-26 14:22:59,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468645517] [2021-01-26 14:22:59,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:23:45,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-01-26 14:23:45,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:23:46,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 80 conjunts are in the unsatisfiable core [2021-01-26 14:23:46,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:23:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3748 backedges. 0 proven. 3744 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:23:46,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:23:46,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 83 [2021-01-26 14:23:46,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876670230] [2021-01-26 14:23:46,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-01-26 14:23:46,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:23:46,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-01-26 14:23:46,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1763, Invalid=5043, Unknown=0, NotChecked=0, Total=6806 [2021-01-26 14:23:46,527 INFO L87 Difference]: Start difference. First operand 821 states. Second operand has 83 states, 83 states have (on average 2.7590361445783134) internal successors, (229), 83 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:23:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:23:55,050 INFO L93 Difference]: Finished difference Result 826 states and 1405 transitions. [2021-01-26 14:23:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-01-26 14:23:55,051 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 2.7590361445783134) internal successors, (229), 83 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have 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 [2021-01-26 14:23:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:23:55,053 INFO L225 Difference]: With dead ends: 826 [2021-01-26 14:23:55,053 INFO L226 Difference]: Without dead ends: 826 [2021-01-26 14:23:55,055 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4863 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=8084, Invalid=17676, Unknown=0, NotChecked=0, Total=25760 [2021-01-26 14:23:55,056 INFO L78 Accepts]: Start accepts. Automaton has 826 states. Word has length 227 [2021-01-26 14:23:55,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:23:55,056 INFO L481 AbstractCegarLoop]: Abstraction has 826 states. [2021-01-26 14:23:55,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 2.7590361445783134) internal successors, (229), 83 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:23:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states. [2021-01-26 14:23:55,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-01-26 14:23:55,058 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:23:55,058 INFO L504 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:23:55,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:23:55,267 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:23:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:23:55,268 INFO L82 PathProgramCache]: Analyzing trace with hash -446036235, now seen corresponding path program 40 times [2021-01-26 14:23:55,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:23:55,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265426687] [2021-01-26 14:23:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:23:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:24:00,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3944 backedges. 0 proven. 3940 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:24:00,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265426687] [2021-01-26 14:24:00,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82348510] [2021-01-26 14:24:00,829 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:24:00,976 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-26 14:24:00,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:24:00,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 82 conjunts are in the unsatisfiable core [2021-01-26 14:24:00,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:24:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3944 backedges. 0 proven. 3940 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:24:01,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:24:01,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 85 [2021-01-26 14:24:01,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839027145] [2021-01-26 14:24:01,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 85 states [2021-01-26 14:24:01,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:24:01,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-01-26 14:24:01,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1848, Invalid=5292, Unknown=0, NotChecked=0, Total=7140 [2021-01-26 14:24:01,151 INFO L87 Difference]: Start difference. First operand 826 states. Second operand has 85 states, 85 states have (on average 2.7529411764705882) internal successors, (234), 85 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:24:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:24:09,920 INFO L93 Difference]: Finished difference Result 831 states and 1410 transitions. [2021-01-26 14:24:09,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2021-01-26 14:24:09,922 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 2.7529411764705882) internal successors, (234), 85 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2021-01-26 14:24:09,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:24:09,924 INFO L225 Difference]: With dead ends: 831 [2021-01-26 14:24:09,924 INFO L226 Difference]: Without dead ends: 831 [2021-01-26 14:24:09,926 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5108 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=8491, Invalid=18569, Unknown=0, NotChecked=0, Total=27060 [2021-01-26 14:24:09,926 INFO L78 Accepts]: Start accepts. Automaton has 831 states. Word has length 232 [2021-01-26 14:24:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:24:09,927 INFO L481 AbstractCegarLoop]: Abstraction has 831 states. [2021-01-26 14:24:09,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 85 states, 85 states have (on average 2.7529411764705882) internal successors, (234), 85 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:24:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states. [2021-01-26 14:24:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-01-26 14:24:09,929 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:24:09,929 INFO L504 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:24:10,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:24:10,135 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:24:10,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:24:10,136 INFO L82 PathProgramCache]: Analyzing trace with hash 282723871, now seen corresponding path program 41 times [2021-01-26 14:24:10,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:24:10,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124459519] [2021-01-26 14:24:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:24:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:24:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4145 backedges. 0 proven. 4141 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:24:16,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124459519] [2021-01-26 14:24:16,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563075836] [2021-01-26 14:24:16,166 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-26 14:27:33,348 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-01-26 14:27:33,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-26 14:27:37,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 84 conjunts are in the unsatisfiable core [2021-01-26 14:27:37,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-26 14:27:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4145 backedges. 0 proven. 4141 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:27:37,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-26 14:27:37,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 87 [2021-01-26 14:27:37,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576536554] [2021-01-26 14:27:37,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 87 states [2021-01-26 14:27:37,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 14:27:37,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-01-26 14:27:37,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1935, Invalid=5547, Unknown=0, NotChecked=0, Total=7482 [2021-01-26 14:27:37,925 INFO L87 Difference]: Start difference. First operand 831 states. Second operand has 87 states, 87 states have (on average 2.7471264367816093) internal successors, (239), 87 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:27:47,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 14:27:47,190 INFO L93 Difference]: Finished difference Result 836 states and 1415 transitions. [2021-01-26 14:27:47,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-01-26 14:27:47,191 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 2.7471264367816093) internal successors, (239), 87 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-01-26 14:27:47,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 14:27:47,193 INFO L225 Difference]: With dead ends: 836 [2021-01-26 14:27:47,193 INFO L226 Difference]: Without dead ends: 836 [2021-01-26 14:27:47,196 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5359 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=8908, Invalid=19484, Unknown=0, NotChecked=0, Total=28392 [2021-01-26 14:27:47,196 INFO L78 Accepts]: Start accepts. Automaton has 836 states. Word has length 237 [2021-01-26 14:27:47,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 14:27:47,197 INFO L481 AbstractCegarLoop]: Abstraction has 836 states. [2021-01-26 14:27:47,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 87 states, 87 states have (on average 2.7471264367816093) internal successors, (239), 87 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 14:27:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states. [2021-01-26 14:27:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-01-26 14:27:47,198 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 14:27:47,199 INFO L504 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 14:27:47,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-01-26 14:27:47,400 INFO L429 AbstractCegarLoop]: === Iteration 44 === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-26 14:27:47,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 14:27:47,401 INFO L82 PathProgramCache]: Analyzing trace with hash 507310389, now seen corresponding path program 42 times [2021-01-26 14:27:47,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 14:27:47,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620148457] [2021-01-26 14:27:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 14:27:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 14:27:53,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4351 backedges. 0 proven. 4347 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-26 14:27:53,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620148457] [2021-01-26 14:27:53,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442216082] [2021-01-26 14:27:53,639 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown