/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 15:22:21,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 15:22:21,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 15:22:21,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 15:22:21,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 15:22:21,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 15:22:21,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 15:22:21,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 15:22:21,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 15:22:21,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 15:22:21,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 15:22:21,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 15:22:21,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 15:22:21,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 15:22:21,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 15:22:21,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 15:22:21,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 15:22:21,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 15:22:21,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 15:22:21,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 15:22:21,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 15:22:21,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 15:22:21,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 15:22:21,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 15:22:21,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 15:22:21,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 15:22:21,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 15:22:21,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 15:22:21,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 15:22:21,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 15:22:21,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 15:22:21,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 15:22:21,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 15:22:21,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 15:22:21,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 15:22:21,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 15:22:21,874 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-SemanticLbe-MCR.epf [2019-12-27 15:22:21,895 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 15:22:21,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 15:22:21,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 15:22:21,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 15:22:21,897 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 15:22:21,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 15:22:21,898 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 15:22:21,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 15:22:21,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 15:22:21,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 15:22:21,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 15:22:21,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 15:22:21,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 15:22:21,899 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 15:22:21,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 15:22:21,899 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 15:22:21,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 15:22:21,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 15:22:21,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 15:22:21,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 15:22:21,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 15:22:21,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 15:22:21,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 15:22:21,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 15:22:21,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 15:22:21,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 15:22:21,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 15:22:21,902 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 15:22:21,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 15:22:21,902 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 15:22:21,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 15:22:22,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 15:22:22,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 15:22:22,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 15:22:22,195 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 15:22:22,195 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 15:22:22,196 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-27 15:22:22,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39750a429/fa87b438d5c24699bd6f35c08857b3c5/FLAGbf3f67260 [2019-12-27 15:22:22,842 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 15:22:22,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-27 15:22:22,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39750a429/fa87b438d5c24699bd6f35c08857b3c5/FLAGbf3f67260 [2019-12-27 15:22:23,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39750a429/fa87b438d5c24699bd6f35c08857b3c5 [2019-12-27 15:22:23,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 15:22:23,191 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 15:22:23,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 15:22:23,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 15:22:23,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 15:22:23,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22368fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23, skipping insertion in model container [2019-12-27 15:22:23,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 15:22:23,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 15:22:23,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:22:23,744 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 15:22:23,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:22:23,871 INFO L208 MainTranslator]: Completed translation [2019-12-27 15:22:23,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23 WrapperNode [2019-12-27 15:22:23,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 15:22:23,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 15:22:23,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 15:22:23,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 15:22:23,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 15:22:23,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 15:22:23,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 15:22:23,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 15:22:23,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (1/1) ... [2019-12-27 15:22:23,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 15:22:23,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 15:22:23,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 15:22:23,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 15:22:23,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (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 [2019-12-27 15:22:24,005 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 15:22:24,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 15:22:24,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 15:22:24,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 15:22:24,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 15:22:24,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 15:22:24,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 15:22:24,008 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 15:22:24,133 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 15:22:24,134 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 15:22:24,135 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-27 15:22:24,135 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-27 15:22:24,307 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 15:22:24,307 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 15:22:24,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:22:24 BoogieIcfgContainer [2019-12-27 15:22:24,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 15:22:24,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 15:22:24,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 15:22:24,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 15:22:24,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:22:23" (1/3) ... [2019-12-27 15:22:24,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7c3ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:22:24, skipping insertion in model container [2019-12-27 15:22:24,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:22:23" (2/3) ... [2019-12-27 15:22:24,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7c3ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:22:24, skipping insertion in model container [2019-12-27 15:22:24,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:22:24" (3/3) ... [2019-12-27 15:22:24,318 INFO L109 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2019-12-27 15:22:24,330 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 15:22:24,331 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 15:22:24,338 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 15:22:24,339 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 15:22:24,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,363 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,370 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,371 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,371 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,371 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,372 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:24,391 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 15:22:24,408 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:22:24,409 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:22:24,409 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:22:24,409 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:22:24,409 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:22:24,410 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:22:24,410 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:22:24,412 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:22:24,423 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions [2019-12-27 15:22:24,424 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-27 15:22:24,459 INFO L132 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-27 15:22:24,459 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 15:22:24,466 INFO L76 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 45 events. 4/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 0/38 useless extension candidates. Maximal degree in co-relation 26. Up to 4 conditions per place. [2019-12-27 15:22:24,468 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-27 15:22:24,485 INFO L132 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-27 15:22:24,486 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 15:22:24,487 INFO L76 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 45 events. 4/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 0/38 useless extension candidates. Maximal degree in co-relation 26. Up to 4 conditions per place. [2019-12-27 15:22:24,489 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 340 [2019-12-27 15:22:24,490 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:22:25,552 INFO L206 etLargeBlockEncoding]: Checked pairs total: 212 [2019-12-27 15:22:25,552 INFO L214 etLargeBlockEncoding]: Total number of compositions: 32 [2019-12-27 15:22:25,558 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 15:22:25,566 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 15:22:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 15:22:25,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 15:22:25,575 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:22:25,576 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 15:22:25,576 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:22:25,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:22:25,583 INFO L82 PathProgramCache]: Analyzing trace with hash 5302540, now seen corresponding path program 1 times [2019-12-27 15:22:25,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:22:25,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528524596] [2019-12-27 15:22:25,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:22:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:22:25,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:22:25,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528524596] [2019-12-27 15:22:25,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:22:25,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 15:22:25,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [54494548] [2019-12-27 15:22:25,797 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:22:25,802 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:22:25,813 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 5 states and 4 transitions. [2019-12-27 15:22:25,813 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:22:25,816 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:22:25,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:22:25,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:22:25,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:22:25,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:22:25,835 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-27 15:22:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:22:25,841 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-27 15:22:25,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:22:25,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-27 15:22:25,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:22:25,852 INFO L225 Difference]: With dead ends: 7 [2019-12-27 15:22:25,852 INFO L226 Difference]: Without dead ends: 7 [2019-12-27 15:22:25,854 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:22:25,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-27 15:22:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-27 15:22:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-27 15:22:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-12-27 15:22:25,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 4 [2019-12-27 15:22:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:22:25,888 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-12-27 15:22:25,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:22:25,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-27 15:22:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 15:22:25,889 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:22:25,889 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 15:22:25,890 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:22:25,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:22:25,890 INFO L82 PathProgramCache]: Analyzing trace with hash 800720775, now seen corresponding path program 1 times [2019-12-27 15:22:25,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:22:25,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920774383] [2019-12-27 15:22:25,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:22:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:22:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:22:25,981 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:22:25,981 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:22:25,983 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:22:25,983 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 15:22:25,993 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:25,993 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:25,993 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:25,993 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:25,994 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:25,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:25,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:25,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,012 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,018 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,018 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,018 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 15:22:26,020 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:22:26,020 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:22:26,020 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:22:26,021 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:22:26,021 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:22:26,021 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:22:26,021 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:22:26,021 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:22:26,024 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 55 transitions [2019-12-27 15:22:26,024 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-27 15:22:26,066 INFO L132 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-27 15:22:26,066 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 15:22:26,069 INFO L76 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 7/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs. 0/60 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2019-12-27 15:22:26,073 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-27 15:22:26,100 INFO L132 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-27 15:22:26,101 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 15:22:26,103 INFO L76 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 7/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs. 0/60 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2019-12-27 15:22:26,108 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1292 [2019-12-27 15:22:26,108 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:22:26,751 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3904 [2019-12-27 15:22:26,751 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 15:22:26,752 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 31 transitions [2019-12-27 15:22:26,790 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 772 states. [2019-12-27 15:22:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states. [2019-12-27 15:22:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 15:22:26,793 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:22:26,793 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-27 15:22:26,793 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:22:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:22:26,794 INFO L82 PathProgramCache]: Analyzing trace with hash 939679780, now seen corresponding path program 1 times [2019-12-27 15:22:26,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:22:26,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134435951] [2019-12-27 15:22:26,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:22:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:22:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:22:26,847 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:22:26,848 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:22:26,848 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:22:26,848 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 15:22:26,858 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,858 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,858 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,858 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,858 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,859 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,859 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,861 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,861 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,861 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,864 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,864 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,865 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,865 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,865 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,865 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,867 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,867 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,868 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,868 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,868 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,868 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,869 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,869 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,869 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,870 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,870 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,871 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,871 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,872 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,873 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,873 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,874 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,874 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,874 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:26,875 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 15:22:26,875 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:22:26,876 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:22:26,876 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:22:26,876 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:22:26,876 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:22:26,876 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:22:26,876 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:22:26,876 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:22:26,879 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 73 transitions [2019-12-27 15:22:26,879 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-27 15:22:26,898 INFO L132 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-27 15:22:26,899 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 15:22:26,901 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 99 events. 10/99 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 255 event pairs. 0/82 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2019-12-27 15:22:26,906 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-27 15:22:26,923 INFO L132 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-27 15:22:26,923 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 15:22:26,925 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 99 events. 10/99 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 255 event pairs. 0/82 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2019-12-27 15:22:26,929 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2856 [2019-12-27 15:22:26,929 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:22:27,612 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10021 [2019-12-27 15:22:27,612 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-27 15:22:27,613 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 44 transitions [2019-12-27 15:22:28,186 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9268 states. [2019-12-27 15:22:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states. [2019-12-27 15:22:28,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 15:22:28,195 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:22:28,195 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:22:28,196 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:22:28,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:22:28,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1241182280, now seen corresponding path program 1 times [2019-12-27 15:22:28,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:22:28,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213307953] [2019-12-27 15:22:28,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:22:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:22:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:22:28,286 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213307953] [2019-12-27 15:22:28,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:22:28,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 15:22:28,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1436682549] [2019-12-27 15:22:28,287 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:22:28,288 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:22:28,293 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 15:22:28,293 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:22:28,294 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:22:28,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:22:28,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:22:28,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:22:28,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:22:28,295 INFO L87 Difference]: Start difference. First operand 9268 states. Second operand 3 states. [2019-12-27 15:22:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:22:28,435 INFO L93 Difference]: Finished difference Result 6730 states and 23379 transitions. [2019-12-27 15:22:28,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:22:28,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 15:22:28,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:22:28,505 INFO L225 Difference]: With dead ends: 6730 [2019-12-27 15:22:28,505 INFO L226 Difference]: Without dead ends: 6730 [2019-12-27 15:22:28,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:22:28,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2019-12-27 15:22:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6118. [2019-12-27 15:22:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6118 states. [2019-12-27 15:22:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 21468 transitions. [2019-12-27 15:22:29,060 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 21468 transitions. Word has length 11 [2019-12-27 15:22:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:22:29,061 INFO L462 AbstractCegarLoop]: Abstraction has 6118 states and 21468 transitions. [2019-12-27 15:22:29,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:22:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 21468 transitions. [2019-12-27 15:22:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 15:22:29,062 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:22:29,062 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:22:29,063 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:22:29,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:22:29,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1242075049, now seen corresponding path program 1 times [2019-12-27 15:22:29,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:22:29,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479075425] [2019-12-27 15:22:29,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:22:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:22:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:22:29,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479075425] [2019-12-27 15:22:29,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:22:29,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 15:22:29,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [975889842] [2019-12-27 15:22:29,131 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:22:29,132 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:22:29,133 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 15:22:29,133 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:22:29,133 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:22:29,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:22:29,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:22:29,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:22:29,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:22:29,134 INFO L87 Difference]: Start difference. First operand 6118 states and 21468 transitions. Second operand 5 states. [2019-12-27 15:22:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:22:29,403 INFO L93 Difference]: Finished difference Result 12178 states and 41275 transitions. [2019-12-27 15:22:29,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 15:22:29,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 15:22:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:22:29,543 INFO L225 Difference]: With dead ends: 12178 [2019-12-27 15:22:29,543 INFO L226 Difference]: Without dead ends: 12178 [2019-12-27 15:22:29,544 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:22:29,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2019-12-27 15:22:30,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 7627. [2019-12-27 15:22:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7627 states. [2019-12-27 15:22:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 26436 transitions. [2019-12-27 15:22:30,073 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 26436 transitions. Word has length 11 [2019-12-27 15:22:30,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:22:30,073 INFO L462 AbstractCegarLoop]: Abstraction has 7627 states and 26436 transitions. [2019-12-27 15:22:30,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:22:30,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 26436 transitions. [2019-12-27 15:22:30,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 15:22:30,075 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:22:30,076 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-27 15:22:30,076 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:22:30,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:22:30,076 INFO L82 PathProgramCache]: Analyzing trace with hash -21046912, now seen corresponding path program 1 times [2019-12-27 15:22:30,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:22:30,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691251554] [2019-12-27 15:22:30,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:22:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:22:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:22:30,131 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:22:30,131 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:22:30,131 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:22:30,131 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 15:22:30,139 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,140 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,140 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,140 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,140 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,140 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,144 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,144 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,144 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,144 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,146 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,149 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,150 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,150 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,150 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,150 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,150 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,153 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,153 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,153 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,153 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,153 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,153 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,154 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,154 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,154 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,154 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,155 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,155 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,155 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,156 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,156 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,158 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,158 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,158 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,158 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,158 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,160 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,160 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,160 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,160 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,160 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:22:30,165 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 15:22:30,165 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:22:30,165 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:22:30,165 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:22:30,165 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:22:30,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:22:30,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:22:30,166 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:22:30,166 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:22:30,167 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions [2019-12-27 15:22:30,168 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-27 15:22:30,188 INFO L132 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-27 15:22:30,188 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 15:22:30,192 INFO L76 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 126 events. 13/126 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 344 event pairs. 0/104 useless extension candidates. Maximal degree in co-relation 107. Up to 10 conditions per place. [2019-12-27 15:22:30,200 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-27 15:22:30,217 INFO L132 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-27 15:22:30,217 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 15:22:30,220 INFO L76 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 126 events. 13/126 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 344 event pairs. 0/104 useless extension candidates. Maximal degree in co-relation 107. Up to 10 conditions per place. [2019-12-27 15:22:30,231 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5032 [2019-12-27 15:22:30,231 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:22:30,970 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18566 [2019-12-27 15:22:30,970 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2019-12-27 15:22:30,970 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 57 transitions [2019-12-27 15:22:58,104 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 111220 states. [2019-12-27 15:22:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 111220 states. [2019-12-27 15:22:58,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 15:22:58,105 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:22:58,106 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:22:58,106 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:22:58,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:22:58,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1804058354, now seen corresponding path program 1 times [2019-12-27 15:22:58,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:22:58,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153219173] [2019-12-27 15:22:58,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:22:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:22:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:22:58,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153219173] [2019-12-27 15:22:58,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:22:58,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 15:22:58,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1700820129] [2019-12-27 15:22:58,184 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:22:58,185 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:22:58,187 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 15:22:58,187 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:22:58,187 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:22:58,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:22:58,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:22:58,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:22:58,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:22:58,188 INFO L87 Difference]: Start difference. First operand 111220 states. Second operand 5 states. [2019-12-27 15:23:03,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:23:03,163 INFO L93 Difference]: Finished difference Result 149526 states and 663692 transitions. [2019-12-27 15:23:03,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:23:03,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 15:23:03,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:23:04,089 INFO L225 Difference]: With dead ends: 149526 [2019-12-27 15:23:04,090 INFO L226 Difference]: Without dead ends: 149526 [2019-12-27 15:23:04,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:23:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149526 states. [2019-12-27 15:23:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149526 to 90340. [2019-12-27 15:23:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90340 states. [2019-12-27 15:23:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90340 states to 90340 states and 415857 transitions. [2019-12-27 15:23:14,375 INFO L78 Accepts]: Start accepts. Automaton has 90340 states and 415857 transitions. Word has length 11 [2019-12-27 15:23:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:23:14,375 INFO L462 AbstractCegarLoop]: Abstraction has 90340 states and 415857 transitions. [2019-12-27 15:23:14,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:23:14,375 INFO L276 IsEmpty]: Start isEmpty. Operand 90340 states and 415857 transitions. [2019-12-27 15:23:14,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 15:23:14,376 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:23:14,376 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:23:14,376 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:23:14,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:23:14,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1803104081, now seen corresponding path program 1 times [2019-12-27 15:23:14,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:23:14,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105635793] [2019-12-27 15:23:14,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:23:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:23:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:23:14,403 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105635793] [2019-12-27 15:23:14,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:23:14,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 15:23:14,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [154050087] [2019-12-27 15:23:14,404 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:23:14,408 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:23:14,409 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 15:23:14,409 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:23:14,409 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:23:14,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:23:14,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:23:14,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:23:14,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:23:14,410 INFO L87 Difference]: Start difference. First operand 90340 states and 415857 transitions. Second operand 3 states. [2019-12-27 15:23:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:23:15,044 INFO L93 Difference]: Finished difference Result 116496 states and 510416 transitions. [2019-12-27 15:23:15,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:23:15,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 15:23:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:23:19,926 INFO L225 Difference]: With dead ends: 116496 [2019-12-27 15:23:19,926 INFO L226 Difference]: Without dead ends: 116496 [2019-12-27 15:23:19,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:23:22,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116496 states. [2019-12-27 15:23:25,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116496 to 112020. [2019-12-27 15:23:25,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112020 states. [2019-12-27 15:23:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112020 states to 112020 states and 492483 transitions. [2019-12-27 15:23:25,404 INFO L78 Accepts]: Start accepts. Automaton has 112020 states and 492483 transitions. Word has length 11 [2019-12-27 15:23:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:23:25,404 INFO L462 AbstractCegarLoop]: Abstraction has 112020 states and 492483 transitions. [2019-12-27 15:23:25,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:23:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 112020 states and 492483 transitions. [2019-12-27 15:23:25,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 15:23:25,406 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:23:25,406 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:23:25,406 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:23:25,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:23:25,406 INFO L82 PathProgramCache]: Analyzing trace with hash 748985780, now seen corresponding path program 1 times [2019-12-27 15:23:25,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:23:25,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765781812] [2019-12-27 15:23:25,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:23:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:23:25,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:23:25,464 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765781812] [2019-12-27 15:23:25,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:23:25,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 15:23:25,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1135574877] [2019-12-27 15:23:25,465 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:23:25,466 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:23:25,467 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 15:23:25,467 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:23:25,468 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:23:25,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:23:25,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:23:25,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:23:25,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:23:25,469 INFO L87 Difference]: Start difference. First operand 112020 states and 492483 transitions. Second operand 5 states. [2019-12-27 15:23:31,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:23:31,143 INFO L93 Difference]: Finished difference Result 207488 states and 889413 transitions. [2019-12-27 15:23:31,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 15:23:31,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 15:23:31,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:23:31,772 INFO L225 Difference]: With dead ends: 207488 [2019-12-27 15:23:31,772 INFO L226 Difference]: Without dead ends: 207488 [2019-12-27 15:23:31,773 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:23:35,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207488 states. [2019-12-27 15:23:38,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207488 to 126524. [2019-12-27 15:23:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126524 states. [2019-12-27 15:23:40,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126524 states to 126524 states and 554674 transitions. [2019-12-27 15:23:40,388 INFO L78 Accepts]: Start accepts. Automaton has 126524 states and 554674 transitions. Word has length 14 [2019-12-27 15:23:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:23:40,388 INFO L462 AbstractCegarLoop]: Abstraction has 126524 states and 554674 transitions. [2019-12-27 15:23:40,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:23:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 126524 states and 554674 transitions. [2019-12-27 15:23:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:23:40,390 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:23:40,390 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 15:23:40,390 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:23:40,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:23:40,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1619668708, now seen corresponding path program 1 times [2019-12-27 15:23:40,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:23:40,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829726480] [2019-12-27 15:23:40,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:23:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:23:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:23:40,410 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:23:40,410 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:23:40,411 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:23:40,411 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 15:23:40,417 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,418 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,418 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,418 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,418 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,418 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,418 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,419 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,420 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,420 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,420 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,420 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,420 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,420 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,421 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,421 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,421 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,421 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,421 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,421 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,422 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,422 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,422 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,422 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,422 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,423 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,423 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,423 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,423 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,423 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,423 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,432 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,432 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:23:40,438 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 15:23:40,438 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:23:40,438 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:23:40,438 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:23:40,438 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:23:40,438 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:23:40,438 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:23:40,439 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:23:40,439 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:23:40,444 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 109 transitions [2019-12-27 15:23:40,445 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-27 15:23:40,468 INFO L132 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-27 15:23:40,469 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 15:23:40,473 INFO L76 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 153 events. 16/153 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 481 event pairs. 0/126 useless extension candidates. Maximal degree in co-relation 141. Up to 12 conditions per place. [2019-12-27 15:23:40,485 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-27 15:23:40,506 INFO L132 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-27 15:23:40,506 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 15:23:40,510 INFO L76 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 153 events. 16/153 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 481 event pairs. 0/126 useless extension candidates. Maximal degree in co-relation 141. Up to 12 conditions per place. [2019-12-27 15:23:40,522 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7820 [2019-12-27 15:23:40,522 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:23:41,383 INFO L206 etLargeBlockEncoding]: Checked pairs total: 29707 [2019-12-27 15:23:41,383 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 15:23:41,383 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 70 transitions Received shutdown request... [2019-12-27 15:26:31,616 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 15:26:31,619 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 15:26:31,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:26:31 BasicIcfg [2019-12-27 15:26:31,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 15:26:31,622 INFO L168 Benchmark]: Toolchain (without parser) took 248429.86 ms. Allocated memory was 138.4 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 99.9 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2019-12-27 15:26:31,623 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 15:26:31,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.11 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 161.0 MB in the end (delta: -61.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-12-27 15:26:31,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.66 ms. Allocated memory is still 201.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 15:26:31,626 INFO L168 Benchmark]: Boogie Preprocessor took 25.59 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 15:26:31,626 INFO L168 Benchmark]: RCFGBuilder took 362.85 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 140.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-12-27 15:26:31,633 INFO L168 Benchmark]: TraceAbstraction took 247308.87 ms. Allocated memory was 201.9 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 140.3 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2019-12-27 15:26:31,642 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.11 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 161.0 MB in the end (delta: -61.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.66 ms. Allocated memory is still 201.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.59 ms. Allocated memory is still 201.9 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 362.85 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 140.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247308.87 ms. Allocated memory was 201.9 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 140.3 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 37 ProgramPointsBefore, 9 ProgramPointsAfterwards, 37 TransitionsBefore, 8 TransitionsAfterwards, 340 CoEnabledTransitionPairs, 6 FixpointIterations, 8 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 164 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 212 CheckedPairsTotal, 32 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 55 ProgramPointsBefore, 31 ProgramPointsAfterwards, 55 TransitionsBefore, 31 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 462 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 3904 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 73 ProgramPointsBefore, 44 ProgramPointsAfterwards, 73 TransitionsBefore, 44 TransitionsAfterwards, 2856 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 1046 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 70 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 10021 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 91 ProgramPointsBefore, 57 ProgramPointsAfterwards, 91 TransitionsBefore, 57 TransitionsAfterwards, 5032 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 1779 VarBasedMoverChecksPositive, 71 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 82 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 18566 CheckedPairsTotal, 36 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 109 ProgramPointsBefore, 70 ProgramPointsAfterwards, 109 TransitionsBefore, 70 TransitionsAfterwards, 7820 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 6 ChoiceCompositions, 2630 VarBasedMoverChecksPositive, 88 VarBasedMoverChecksNegative, 37 SemBasedMoverChecksPositive, 103 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 29707 CheckedPairsTotal, 42 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 698]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 698). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 70 places, 70 transitions. Already constructed 309561 states. Currently 61922 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Result: TIMEOUT, OverallTime: 171.1s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown