/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.epf -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:57:29,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:57:29,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:57:29,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:57:29,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:57:29,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:57:29,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:57:29,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:57:29,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:57:29,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:57:29,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:57:29,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:57:29,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:57:29,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:57:29,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:57:29,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:57:29,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:57:29,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:57:29,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:57:29,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:57:29,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:57:29,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:57:29,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:57:29,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:57:29,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:57:29,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:57:29,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:57:29,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:57:29,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:57:29,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:57:29,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:57:29,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:57:29,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:57:29,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:57:29,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:57:29,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:57:29,857 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.epf [2019-12-27 00:57:29,871 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:57:29,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:57:29,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:57:29,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:57:29,873 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:57:29,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:57:29,873 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:57:29,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:57:29,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:57:29,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:57:29,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:57:29,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:57:29,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:57:29,874 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:57:29,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:57:29,875 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:57:29,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:57:29,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:57:29,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:57:29,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:57:29,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:57:29,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:57:29,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:57:29,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:57:29,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:57:29,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:57:29,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:57:29,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:57:29,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:57:30,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:57:30,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:57:30,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:57:30,174 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:57:30,174 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:57:30,175 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-27 00:57:30,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5129c052b/c3847b4129c248e2b6babdc4cbd0a0af/FLAG2fb26eb10 [2019-12-27 00:57:30,789 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:57:30,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2019-12-27 00:57:30,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5129c052b/c3847b4129c248e2b6babdc4cbd0a0af/FLAG2fb26eb10 [2019-12-27 00:57:31,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5129c052b/c3847b4129c248e2b6babdc4cbd0a0af [2019-12-27 00:57:31,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:57:31,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:57:31,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:57:31,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:57:31,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:57:31,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca68774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31, skipping insertion in model container [2019-12-27 00:57:31,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:57:31,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:57:31,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:57:31,579 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:57:31,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:57:31,697 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:57:31,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31 WrapperNode [2019-12-27 00:57:31,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:57:31,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:57:31,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:57:31,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:57:31,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:57:31,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:57:31,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:57:31,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:57:31,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (1/1) ... [2019-12-27 00:57:31,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:57:31,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:57:31,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:57:31,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:57:31,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (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 00:57:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 00:57:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 00:57:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:57:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:57:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:57:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:57:31,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:57:31,845 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 00:57:31,971 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 00:57:31,972 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 00:57:31,973 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-27 00:57:31,973 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-27 00:57:32,134 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:57:32,134 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 00:57:32,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:57:32 BoogieIcfgContainer [2019-12-27 00:57:32,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:57:32,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:57:32,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:57:32,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:57:32,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:57:31" (1/3) ... [2019-12-27 00:57:32,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610abfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:57:32, skipping insertion in model container [2019-12-27 00:57:32,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:57:31" (2/3) ... [2019-12-27 00:57:32,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610abfee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:57:32, skipping insertion in model container [2019-12-27 00:57:32,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:57:32" (3/3) ... [2019-12-27 00:57:32,147 INFO L109 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2019-12-27 00:57:32,166 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:57:32,166 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:57:32,172 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:57:32,173 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:57:32,194 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,195 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,195 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,195 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,196 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,196 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,196 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,197 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,198 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,198 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:32,222 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 00:57:32,241 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:57:32,242 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:57:32,242 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:57:32,242 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:57:32,242 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:57:32,242 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:57:32,243 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:57:32,243 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:57:32,253 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions [2019-12-27 00:57:32,255 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-27 00:57:32,288 INFO L132 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-27 00:57:32,289 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:57:32,294 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 00:57:32,298 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions [2019-12-27 00:57:32,314 INFO L132 PetriNetUnfolder]: 4/45 cut-off events. [2019-12-27 00:57:32,314 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:57:32,315 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 00:57:32,317 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 340 [2019-12-27 00:57:32,319 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:57:33,387 INFO L206 etLargeBlockEncoding]: Checked pairs total: 212 [2019-12-27 00:57:33,388 INFO L214 etLargeBlockEncoding]: Total number of compositions: 32 [2019-12-27 00:57:33,394 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 00:57:33,402 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 00:57:33,405 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 00:57:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 00:57:33,413 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:57:33,414 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 00:57:33,416 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:57:33,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:57:33,424 INFO L82 PathProgramCache]: Analyzing trace with hash 5302540, now seen corresponding path program 1 times [2019-12-27 00:57:33,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:57:33,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811731227] [2019-12-27 00:57:33,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:57:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:57:33,677 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 00:57:33,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811731227] [2019-12-27 00:57:33,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:57:33,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:57:33,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040739762] [2019-12-27 00:57:33,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:57:33,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:57:33,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:57:33,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:57:33,700 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-27 00:57:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:57:33,711 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-27 00:57:33,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:57:33,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-27 00:57:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:57:33,719 INFO L225 Difference]: With dead ends: 7 [2019-12-27 00:57:33,719 INFO L226 Difference]: Without dead ends: 7 [2019-12-27 00:57:33,721 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 00:57:33,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-27 00:57:33,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-27 00:57:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-27 00:57:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-12-27 00:57:33,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 4 [2019-12-27 00:57:33,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:57:33,747 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-12-27 00:57:33,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:57:33,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-27 00:57:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 00:57:33,747 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:57:33,748 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 00:57:33,748 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:57:33,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:57:33,748 INFO L82 PathProgramCache]: Analyzing trace with hash 800720775, now seen corresponding path program 1 times [2019-12-27 00:57:33,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:57:33,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569762955] [2019-12-27 00:57:33,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:57:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:57:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:57:33,801 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:57:33,802 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:57:33,803 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:57:33,804 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 00:57:33,810 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,811 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,811 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,811 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,811 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,812 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,812 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,812 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,813 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,813 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,814 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,814 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,815 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,815 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,815 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,816 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,816 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,818 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,820 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,821 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:33,823 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:57:33,823 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:57:33,824 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:57:33,824 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:57:33,824 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:57:33,824 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:57:33,824 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:57:33,824 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:57:33,824 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:57:33,827 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 55 transitions [2019-12-27 00:57:33,828 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-27 00:57:33,849 INFO L132 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-27 00:57:33,849 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:57:33,851 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 00:57:33,856 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions [2019-12-27 00:57:33,876 INFO L132 PetriNetUnfolder]: 7/72 cut-off events. [2019-12-27 00:57:33,876 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:57:33,878 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 00:57:33,882 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1292 [2019-12-27 00:57:33,883 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:57:34,533 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3904 [2019-12-27 00:57:34,533 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 00:57:34,533 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 31 transitions [2019-12-27 00:57:34,572 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 772 states. [2019-12-27 00:57:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states. [2019-12-27 00:57:34,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:57:34,574 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:57:34,574 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-27 00:57:34,575 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:57:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:57:34,575 INFO L82 PathProgramCache]: Analyzing trace with hash 939679780, now seen corresponding path program 1 times [2019-12-27 00:57:34,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:57:34,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648292636] [2019-12-27 00:57:34,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:57:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:57:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:57:34,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:57:34,639 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:57:34,640 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:57:34,640 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 00:57:34,652 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,652 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,653 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,653 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,653 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,653 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,653 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,654 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,654 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,654 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,655 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,655 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,655 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,655 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,655 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,656 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,656 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,656 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,656 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,657 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,657 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,657 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,657 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,658 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,659 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,659 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,660 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,660 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,660 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,660 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,660 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,662 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,662 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,662 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,662 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,663 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,665 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,665 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,665 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,666 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,666 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:34,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 00:57:34,667 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:57:34,668 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:57:34,668 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:57:34,668 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:57:34,668 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:57:34,668 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:57:34,668 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:57:34,668 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:57:34,671 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 73 transitions [2019-12-27 00:57:34,671 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-27 00:57:34,693 INFO L132 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-27 00:57:34,693 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:57:34,696 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 00:57:34,700 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 73 places, 73 transitions [2019-12-27 00:57:34,721 INFO L132 PetriNetUnfolder]: 10/99 cut-off events. [2019-12-27 00:57:34,721 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:57:34,723 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 00:57:34,728 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2856 [2019-12-27 00:57:34,728 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:57:35,444 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10021 [2019-12-27 00:57:35,445 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-27 00:57:35,445 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 44 transitions [2019-12-27 00:57:36,034 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9268 states. [2019-12-27 00:57:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states. [2019-12-27 00:57:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:57:36,038 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:57:36,039 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:57:36,039 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:57:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:57:36,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1241182280, now seen corresponding path program 1 times [2019-12-27 00:57:36,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:57:36,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093805952] [2019-12-27 00:57:36,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:57:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:57:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:57:36,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093805952] [2019-12-27 00:57:36,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:57:36,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:57:36,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024789410] [2019-12-27 00:57:36,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:57:36,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:57:36,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:57:36,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:57:36,112 INFO L87 Difference]: Start difference. First operand 9268 states. Second operand 3 states. [2019-12-27 00:57:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:57:36,257 INFO L93 Difference]: Finished difference Result 6730 states and 23379 transitions. [2019-12-27 00:57:36,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:57:36,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 00:57:36,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:57:36,348 INFO L225 Difference]: With dead ends: 6730 [2019-12-27 00:57:36,348 INFO L226 Difference]: Without dead ends: 6730 [2019-12-27 00:57:36,349 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 00:57:36,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2019-12-27 00:57:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6118. [2019-12-27 00:57:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6118 states. [2019-12-27 00:57:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 21468 transitions. [2019-12-27 00:57:36,748 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 21468 transitions. Word has length 11 [2019-12-27 00:57:36,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:57:36,749 INFO L462 AbstractCegarLoop]: Abstraction has 6118 states and 21468 transitions. [2019-12-27 00:57:36,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:57:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 21468 transitions. [2019-12-27 00:57:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:57:36,756 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:57:36,756 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:57:36,756 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:57:36,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:57:36,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1242075049, now seen corresponding path program 1 times [2019-12-27 00:57:36,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:57:36,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388162724] [2019-12-27 00:57:36,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:57:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:57:36,979 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 00:57:36,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388162724] [2019-12-27 00:57:36,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:57:36,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:57:36,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496445252] [2019-12-27 00:57:36,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:57:36,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:57:36,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:57:36,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:57:36,981 INFO L87 Difference]: Start difference. First operand 6118 states and 21468 transitions. Second operand 5 states. [2019-12-27 00:57:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:57:37,245 INFO L93 Difference]: Finished difference Result 12178 states and 41275 transitions. [2019-12-27 00:57:37,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 00:57:37,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 00:57:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:57:37,345 INFO L225 Difference]: With dead ends: 12178 [2019-12-27 00:57:37,345 INFO L226 Difference]: Without dead ends: 12178 [2019-12-27 00:57:37,347 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 00:57:37,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2019-12-27 00:57:37,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 7627. [2019-12-27 00:57:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7627 states. [2019-12-27 00:57:37,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7627 states to 7627 states and 26436 transitions. [2019-12-27 00:57:37,830 INFO L78 Accepts]: Start accepts. Automaton has 7627 states and 26436 transitions. Word has length 11 [2019-12-27 00:57:37,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:57:37,831 INFO L462 AbstractCegarLoop]: Abstraction has 7627 states and 26436 transitions. [2019-12-27 00:57:37,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:57:37,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7627 states and 26436 transitions. [2019-12-27 00:57:37,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:57:37,832 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:57:37,832 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-27 00:57:37,832 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:57:37,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:57:37,832 INFO L82 PathProgramCache]: Analyzing trace with hash -21046912, now seen corresponding path program 1 times [2019-12-27 00:57:37,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:57:37,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320930475] [2019-12-27 00:57:37,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:57:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:57:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:57:37,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:57:37,855 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:57:37,855 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:57:37,856 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 00:57:37,863 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,864 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,864 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,865 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,865 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,865 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,866 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,866 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,868 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,869 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,870 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,870 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,870 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,870 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,870 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,871 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,871 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,871 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,872 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,872 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,873 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,873 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,873 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,874 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,877 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,877 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,877 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,878 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,883 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,883 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,884 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,884 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,884 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,886 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,886 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,886 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,887 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,887 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,888 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,888 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,888 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,888 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,889 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:57:37,890 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 00:57:37,890 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:57:37,890 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:57:37,890 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:57:37,890 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:57:37,891 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:57:37,891 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:57:37,891 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:57:37,891 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:57:37,893 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions [2019-12-27 00:57:37,893 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-27 00:57:37,921 INFO L132 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-27 00:57:37,921 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:57:37,925 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 00:57:37,932 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-27 00:57:37,951 INFO L132 PetriNetUnfolder]: 13/126 cut-off events. [2019-12-27 00:57:37,951 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:57:37,954 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 00:57:37,962 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5032 [2019-12-27 00:57:37,962 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:57:38,713 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18566 [2019-12-27 00:57:38,713 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2019-12-27 00:57:38,713 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 57 transitions [2019-12-27 00:58:05,853 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 111220 states. [2019-12-27 00:58:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 111220 states. [2019-12-27 00:58:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:58:05,854 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:58:05,854 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:58:05,854 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 00:58:05,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:58:05,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1804058354, now seen corresponding path program 1 times [2019-12-27 00:58:05,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:58:05,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044098257] [2019-12-27 00:58:05,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:58:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:58:05,936 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 00:58:05,936 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044098257] [2019-12-27 00:58:05,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:58:05,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:58:05,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94819338] [2019-12-27 00:58:05,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:58:05,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:58:05,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:58:05,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:58:05,939 INFO L87 Difference]: Start difference. First operand 111220 states. Second operand 5 states. [2019-12-27 00:58:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:58:08,656 INFO L93 Difference]: Finished difference Result 149526 states and 663692 transitions. [2019-12-27 00:58:08,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:58:08,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 00:58:08,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:58:09,674 INFO L225 Difference]: With dead ends: 149526 [2019-12-27 00:58:09,674 INFO L226 Difference]: Without dead ends: 149526 [2019-12-27 00:58:09,675 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 00:58:15,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149526 states. [2019-12-27 00:58:17,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149526 to 90340. [2019-12-27 00:58:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90340 states. [2019-12-27 00:58:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90340 states to 90340 states and 415857 transitions. [2019-12-27 00:58:18,318 INFO L78 Accepts]: Start accepts. Automaton has 90340 states and 415857 transitions. Word has length 11 [2019-12-27 00:58:18,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:58:18,318 INFO L462 AbstractCegarLoop]: Abstraction has 90340 states and 415857 transitions. [2019-12-27 00:58:18,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:58:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 90340 states and 415857 transitions. [2019-12-27 00:58:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:58:18,319 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:58:18,319 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:58:18,319 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 00:58:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:58:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1803104081, now seen corresponding path program 1 times [2019-12-27 00:58:18,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:58:18,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11782222] [2019-12-27 00:58:18,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:58:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:58:18,350 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 00:58:18,350 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11782222] [2019-12-27 00:58:18,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:58:18,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:58:18,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270427161] [2019-12-27 00:58:18,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:58:18,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:58:18,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:58:18,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:58:18,355 INFO L87 Difference]: Start difference. First operand 90340 states and 415857 transitions. Second operand 3 states. [2019-12-27 00:58:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:58:22,880 INFO L93 Difference]: Finished difference Result 116496 states and 510416 transitions. [2019-12-27 00:58:22,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:58:22,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 00:58:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:58:23,395 INFO L225 Difference]: With dead ends: 116496 [2019-12-27 00:58:23,396 INFO L226 Difference]: Without dead ends: 116496 [2019-12-27 00:58:23,396 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 00:58:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116496 states. [2019-12-27 00:58:28,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116496 to 112020. [2019-12-27 00:58:28,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112020 states. [2019-12-27 00:58:29,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112020 states to 112020 states and 492483 transitions. [2019-12-27 00:58:29,839 INFO L78 Accepts]: Start accepts. Automaton has 112020 states and 492483 transitions. Word has length 11 [2019-12-27 00:58:29,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:58:29,840 INFO L462 AbstractCegarLoop]: Abstraction has 112020 states and 492483 transitions. [2019-12-27 00:58:29,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:58:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 112020 states and 492483 transitions. [2019-12-27 00:58:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:58:29,841 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:58:29,841 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:58:29,841 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 00:58:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:58:29,842 INFO L82 PathProgramCache]: Analyzing trace with hash 748985780, now seen corresponding path program 1 times [2019-12-27 00:58:29,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:58:29,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797731154] [2019-12-27 00:58:29,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:58:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:58:29,917 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 00:58:29,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797731154] [2019-12-27 00:58:29,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:58:29,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:58:29,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234634214] [2019-12-27 00:58:29,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:58:29,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:58:29,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:58:29,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:58:29,919 INFO L87 Difference]: Start difference. First operand 112020 states and 492483 transitions. Second operand 5 states. [2019-12-27 00:58:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:58:36,654 INFO L93 Difference]: Finished difference Result 207488 states and 889413 transitions. [2019-12-27 00:58:36,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 00:58:36,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:58:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:58:37,287 INFO L225 Difference]: With dead ends: 207488 [2019-12-27 00:58:37,287 INFO L226 Difference]: Without dead ends: 207488 [2019-12-27 00:58:37,288 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 00:58:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207488 states. [2019-12-27 00:58:43,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207488 to 126524. [2019-12-27 00:58:43,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126524 states. [2019-12-27 00:58:45,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126524 states to 126524 states and 554674 transitions. [2019-12-27 00:58:45,096 INFO L78 Accepts]: Start accepts. Automaton has 126524 states and 554674 transitions. Word has length 14 [2019-12-27 00:58:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:58:45,096 INFO L462 AbstractCegarLoop]: Abstraction has 126524 states and 554674 transitions. [2019-12-27 00:58:45,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:58:45,096 INFO L276 IsEmpty]: Start isEmpty. Operand 126524 states and 554674 transitions. [2019-12-27 00:58:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:58:45,098 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:58:45,098 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 00:58:45,098 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 00:58:45,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:58:45,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1619668708, now seen corresponding path program 1 times [2019-12-27 00:58:45,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:58:45,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352314061] [2019-12-27 00:58:45,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:58:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:58:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:58:45,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:58:45,119 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:58:45,120 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:58:45,120 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 00:58:45,127 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,127 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,127 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,128 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,128 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,128 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,128 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,128 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,129 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,129 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,129 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,129 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,129 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,129 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,129 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,130 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,130 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,130 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,130 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,130 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,131 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,131 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,131 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,131 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,131 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,131 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,132 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,132 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,132 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,132 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,132 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,133 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,133 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,133 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,133 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,133 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,133 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,134 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,135 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,135 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,135 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,135 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,135 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,136 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,136 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,136 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,136 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,136 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,137 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,137 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,141 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,142 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,142 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,143 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,143 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,144 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,145 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,145 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,147 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_Barrier2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,147 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,147 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,148 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,148 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:58:45,149 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 00:58:45,149 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:58:45,149 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:58:45,149 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:58:45,149 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:58:45,149 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:58:45,149 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:58:45,150 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:58:45,150 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:58:45,152 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 109 transitions [2019-12-27 00:58:45,152 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-27 00:58:45,178 INFO L132 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-27 00:58:45,178 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:58:45,182 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 00:58:45,194 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions [2019-12-27 00:58:45,216 INFO L132 PetriNetUnfolder]: 16/153 cut-off events. [2019-12-27 00:58:45,216 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:58:45,220 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 00:58:45,232 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7820 [2019-12-27 00:58:45,233 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:58:46,232 INFO L206 etLargeBlockEncoding]: Checked pairs total: 29707 [2019-12-27 00:58:46,232 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 00:58:46,232 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 70 transitions Received shutdown request... [2019-12-27 01:01:41,651 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 01:01:41,654 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 01:01:41,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:01:41 BasicIcfg [2019-12-27 01:01:41,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 01:01:41,657 INFO L168 Benchmark]: Toolchain (without parser) took 250549.64 ms. Allocated memory was 137.4 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 100.2 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.7 GB. Max. memory is 7.1 GB. [2019-12-27 01:01:41,658 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 01:01:41,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.65 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 159.2 MB in the end (delta: -59.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-27 01:01:41,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.06 ms. Allocated memory is still 201.3 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 01:01:41,660 INFO L168 Benchmark]: Boogie Preprocessor took 26.79 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 155.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-12-27 01:01:41,661 INFO L168 Benchmark]: RCFGBuilder took 361.47 ms. Allocated memory is still 201.3 MB. Free memory was 155.4 MB in the beginning and 138.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2019-12-27 01:01:41,662 INFO L168 Benchmark]: TraceAbstraction took 249516.86 ms. Allocated memory was 201.3 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 137.8 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.7 GB. Max. memory is 7.1 GB. [2019-12-27 01:01:41,669 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 589.65 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 159.2 MB in the end (delta: -59.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.06 ms. Allocated memory is still 201.3 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.79 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 155.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.47 ms. Allocated memory is still 201.3 MB. Free memory was 155.4 MB in the beginning and 138.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249516.86 ms. Allocated memory was 201.3 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 137.8 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.7 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: 1.0s, 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 313589 states. Currently 62471 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Result: TIMEOUT, OverallTime: 176.5s, 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