/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:57:22,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:57:22,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:57:22,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:57:22,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:57:22,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:57:22,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:57:22,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:57:22,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:57:22,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:57:22,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:57:22,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:57:22,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:57:22,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:57:22,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:57:22,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:57:22,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:57:22,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:57:22,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:57:22,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:57:22,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:57:22,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:57:22,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:57:22,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:57:22,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:57:22,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:57:22,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:57:22,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:57:22,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:57:22,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:57:22,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:57:22,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:57:22,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:57:22,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:57:22,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:57:22,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:57:22,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:57:22,731 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:57:22,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:57:22,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:57:22,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:57:22,733 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:57:22,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:57:22,734 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:57:22,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:57:22,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:57:22,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:57:22,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:57:22,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:57:22,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:57:22,735 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:57:22,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:57:22,735 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:57:22,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:57:22,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:57:22,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:57:22,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:57:22,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:57:22,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:57:22,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:57:22,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:57:22,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:57:22,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:57:22,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:57:22,738 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:57:22,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:57:22,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:57:23,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:57:23,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:57:23,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:57:23,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:57:23,060 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:57:23,061 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2019-12-19 04:57:23,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86f617ffc/c9021f7bd75b42dcacfd2efd53641ae4/FLAG1d5dfbbe4 [2019-12-19 04:57:23,756 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:57:23,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2019-12-19 04:57:23,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86f617ffc/c9021f7bd75b42dcacfd2efd53641ae4/FLAG1d5dfbbe4 [2019-12-19 04:57:24,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86f617ffc/c9021f7bd75b42dcacfd2efd53641ae4 [2019-12-19 04:57:24,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:57:24,112 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:57:24,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:57:24,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:57:24,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:57:24,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fae05fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24, skipping insertion in model container [2019-12-19 04:57:24,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:57:24,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:57:24,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:57:24,697 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:57:24,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:57:24,871 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:57:24,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24 WrapperNode [2019-12-19 04:57:24,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:57:24,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:57:24,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:57:24,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:57:24,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:57:24,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:57:24,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:57:24,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:57:24,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (1/1) ... [2019-12-19 04:57:24,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:57:24,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:57:24,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:57:24,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:57:24,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (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 [2019-12-19 04:57:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:57:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:57:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:57:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:57:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:57:25,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:57:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:57:25,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:57:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:57:25,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:57:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:57:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:57:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:57:25,020 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:57:25,351 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:57:25,352 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:57:25,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:57:25 BoogieIcfgContainer [2019-12-19 04:57:25,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:57:25,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:57:25,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:57:25,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:57:25,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:57:24" (1/3) ... [2019-12-19 04:57:25,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7854c09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:57:25, skipping insertion in model container [2019-12-19 04:57:25,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:57:24" (2/3) ... [2019-12-19 04:57:25,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7854c09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:57:25, skipping insertion in model container [2019-12-19 04:57:25,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:57:25" (3/3) ... [2019-12-19 04:57:25,362 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2019-12-19 04:57:25,372 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:57:25,373 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:57:25,380 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:57:25,381 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:57:25,415 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,415 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,416 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,416 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,416 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,417 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,417 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,417 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,418 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,418 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,419 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,419 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,419 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,420 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,420 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,420 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,420 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,421 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,425 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,425 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,426 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,426 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,433 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,433 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,433 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,434 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,437 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,438 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,438 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,438 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:57:25,451 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:57:25,468 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:57:25,469 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:57:25,469 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:57:25,469 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:57:25,469 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:57:25,469 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:57:25,469 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:57:25,470 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:57:25,480 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:57:25,577 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:57:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:57:25,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:57:25,597 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:25,598 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:57:25,599 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:25,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1589731149, now seen corresponding path program 1 times [2019-12-19 04:57:25,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:25,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333656128] [2019-12-19 04:57:25,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:57:26,001 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333656128] [2019-12-19 04:57:26,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:26,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:57:26,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759629023] [2019-12-19 04:57:26,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:57:26,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:26,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:57:26,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:57:26,023 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:57:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:26,177 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:57:26,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:57:26,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:57:26,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:26,228 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:57:26,229 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:57:26,230 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:57:26,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:57:26,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:57:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:57:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:57:26,341 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:57:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:26,341 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:57:26,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:57:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:57:26,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:57:26,346 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:26,346 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:57:26,346 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:26,347 INFO L82 PathProgramCache]: Analyzing trace with hash 227019057, now seen corresponding path program 1 times [2019-12-19 04:57:26,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:26,347 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030592626] [2019-12-19 04:57:26,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:57:26,522 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030592626] [2019-12-19 04:57:26,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:26,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:57:26,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866424247] [2019-12-19 04:57:26,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:57:26,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:26,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:57:26,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:57:26,526 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:57:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:26,611 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:57:26,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:57:26,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:57:26,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:26,618 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:57:26,618 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:57:26,619 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:57:26,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:57:26,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:57:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:57:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:57:26,651 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:57:26,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:26,652 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:57:26,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:57:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:57:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:57:26,655 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:26,655 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:57:26,656 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:26,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:26,656 INFO L82 PathProgramCache]: Analyzing trace with hash -524737327, now seen corresponding path program 1 times [2019-12-19 04:57:26,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:26,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142780682] [2019-12-19 04:57:26,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:57:26,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142780682] [2019-12-19 04:57:26,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:26,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:57:26,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405842353] [2019-12-19 04:57:26,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:57:26,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:26,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:57:26,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:57:26,787 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:57:26,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:26,875 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:57:26,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:57:26,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:57:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:26,878 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:57:26,879 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:57:26,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:57:26,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:57:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:57:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:57:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:57:26,893 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:57:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:26,894 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:57:26,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:57:26,894 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:57:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:57:26,896 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:26,896 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:57:26,896 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:26,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:26,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1007154836, now seen corresponding path program 1 times [2019-12-19 04:57:26,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:26,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948235508] [2019-12-19 04:57:26,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:57:27,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948235508] [2019-12-19 04:57:27,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:27,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:57:27,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910949457] [2019-12-19 04:57:27,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:57:27,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:27,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:57:27,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:57:27,079 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-12-19 04:57:27,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:27,243 INFO L93 Difference]: Finished difference Result 519 states and 1394 transitions. [2019-12-19 04:57:27,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:57:27,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:57:27,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:27,247 INFO L225 Difference]: With dead ends: 519 [2019-12-19 04:57:27,247 INFO L226 Difference]: Without dead ends: 276 [2019-12-19 04:57:27,247 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:57:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2019-12-19 04:57:27,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2019-12-19 04:57:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-12-19 04:57:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 725 transitions. [2019-12-19 04:57:27,259 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 725 transitions. Word has length 33 [2019-12-19 04:57:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:27,260 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 725 transitions. [2019-12-19 04:57:27,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:57:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 725 transitions. [2019-12-19 04:57:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:57:27,262 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:27,262 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:57:27,262 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:27,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:27,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1391348590, now seen corresponding path program 2 times [2019-12-19 04:57:27,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:27,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781766244] [2019-12-19 04:57:27,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:27,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:57:27,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781766244] [2019-12-19 04:57:27,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:27,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:57:27,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172061474] [2019-12-19 04:57:27,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:57:27,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:27,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:57:27,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:57:27,429 INFO L87 Difference]: Start difference. First operand 276 states and 725 transitions. Second operand 7 states. [2019-12-19 04:57:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:27,567 INFO L93 Difference]: Finished difference Result 447 states and 1205 transitions. [2019-12-19 04:57:27,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:57:27,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:57:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:27,570 INFO L225 Difference]: With dead ends: 447 [2019-12-19 04:57:27,571 INFO L226 Difference]: Without dead ends: 264 [2019-12-19 04:57:27,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:57:27,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-19 04:57:27,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-19 04:57:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-19 04:57:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 695 transitions. [2019-12-19 04:57:27,580 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 695 transitions. Word has length 33 [2019-12-19 04:57:27,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:27,580 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 695 transitions. [2019-12-19 04:57:27,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:57:27,581 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 695 transitions. [2019-12-19 04:57:27,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:57:27,582 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:57:27,582 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:57:27,582 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:57:27,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:57:27,583 INFO L82 PathProgramCache]: Analyzing trace with hash 304903326, now seen corresponding path program 3 times [2019-12-19 04:57:27,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:57:27,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361938538] [2019-12-19 04:57:27,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:57:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:57:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:57:27,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361938538] [2019-12-19 04:57:27,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:57:27,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:57:27,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587617393] [2019-12-19 04:57:27,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:57:27,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:57:27,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:57:27,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:57:27,747 INFO L87 Difference]: Start difference. First operand 264 states and 695 transitions. Second operand 7 states. [2019-12-19 04:57:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:57:27,871 INFO L93 Difference]: Finished difference Result 210 states and 533 transitions. [2019-12-19 04:57:27,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:57:27,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:57:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:57:27,872 INFO L225 Difference]: With dead ends: 210 [2019-12-19 04:57:27,872 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:57:27,873 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:57:27,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:57:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:57:27,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:57:27,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:57:27,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:57:27,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:57:27,874 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:57:27,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:57:27,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:57:27,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:57:27,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:57:27 BasicIcfg [2019-12-19 04:57:27,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:57:27,893 INFO L168 Benchmark]: Toolchain (without parser) took 3777.48 ms. Allocated memory was 144.7 MB in the beginning and 250.1 MB in the end (delta: 105.4 MB). Free memory was 100.0 MB in the beginning and 173.3 MB in the end (delta: -73.3 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:27,894 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 04:57:27,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.42 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 157.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:27,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.24 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:27,906 INFO L168 Benchmark]: Boogie Preprocessor took 26.51 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:27,907 INFO L168 Benchmark]: RCFGBuilder took 399.24 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 133.6 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:27,908 INFO L168 Benchmark]: TraceAbstraction took 2532.34 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 133.6 MB in the beginning and 173.3 MB in the end (delta: -39.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:57:27,926 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.42 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 157.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.24 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.51 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 399.24 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 133.6 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2532.34 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 133.6 MB in the beginning and 173.3 MB in the end (delta: -39.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 367 SDslu, 753 SDs, 0 SdLazy, 122 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 17178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...