/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:49:28,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:49:28,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:49:28,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:49:28,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:49:28,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:49:28,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:49:28,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:49:28,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:49:28,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:49:28,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:49:28,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:49:28,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:49:28,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:49:28,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:49:28,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:49:28,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:49:28,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:49:28,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:49:28,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:49:28,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:49:28,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:49:28,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:49:28,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:49:28,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 04:49:28,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 04:49:28,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 04:49:28,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 04:49:28,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 04:49:28,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 04:49:28,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:49:28,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:49:28,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:49:28,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:49:28,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:49:28,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:49:28,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:49:28,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:49:28,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:49:28,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:49:28,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:49:28,728 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-MCR.epf [2019-12-28 04:49:28,743 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:49:28,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:49:28,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:49:28,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:49:28,749 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:49:28,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:49:28,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:49:28,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:49:28,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:49:28,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:49:28,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:49:28,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:49:28,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:49:28,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:49:28,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:49:28,752 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:49:28,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:49:28,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:49:28,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:49:28,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:49:28,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:49:28,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:49:28,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:49:28,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:49:28,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:49:28,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:49:28,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:49:28,755 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:49:28,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:49:28,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:49:28,755 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:49:28,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:49:29,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:49:29,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:49:29,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:49:29,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:49:29,044 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:49:29,044 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-28 04:49:29,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6bab662/08d14929ada341f0a77ada73a47025b3/FLAGba3f76da2 [2019-12-28 04:49:29,641 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:49:29,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2019-12-28 04:49:29,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6bab662/08d14929ada341f0a77ada73a47025b3/FLAGba3f76da2 [2019-12-28 04:49:29,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6bab662/08d14929ada341f0a77ada73a47025b3 [2019-12-28 04:49:29,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:49:29,973 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:49:29,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:49:29,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:49:29,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:49:29,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:49:29" (1/1) ... [2019-12-28 04:49:29,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cec35bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:29, skipping insertion in model container [2019-12-28 04:49:29,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:49:29" (1/1) ... [2019-12-28 04:49:29,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:49:30,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:49:30,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:49:30,550 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:49:30,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:49:30,744 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:49:30,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30 WrapperNode [2019-12-28 04:49:30,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:49:30,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:49:30,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:49:30,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:49:30,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:49:30,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:49:30,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:49:30,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:49:30,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (1/1) ... [2019-12-28 04:49:30,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:49:30,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:49:30,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:49:30,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:49:30,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (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 [2019-12-28 04:49:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:49:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:49:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:49:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:49:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:49:30,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:49:30,970 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:49:30,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:49:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:49:30,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:49:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:49:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:49:30,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:49:30,974 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:49:31,376 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:49:31,377 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:49:31,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:49:31 BoogieIcfgContainer [2019-12-28 04:49:31,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:49:31,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:49:31,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:49:31,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:49:31,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:49:29" (1/3) ... [2019-12-28 04:49:31,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13768c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:49:31, skipping insertion in model container [2019-12-28 04:49:31,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:30" (2/3) ... [2019-12-28 04:49:31,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13768c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:49:31, skipping insertion in model container [2019-12-28 04:49:31,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:49:31" (3/3) ... [2019-12-28 04:49:31,388 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2019-12-28 04:49:31,398 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:49:31,399 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:49:31,406 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:49:31,407 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:49:31,435 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,436 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,436 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,436 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,437 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,437 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,438 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,438 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,438 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,439 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,439 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,439 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,440 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,440 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,440 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,440 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,441 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,441 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,445 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,445 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,445 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,446 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,452 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,452 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,452 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,453 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,457 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,458 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,458 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,458 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:31,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:49:31,494 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:49:31,494 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:49:31,494 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:49:31,494 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:49:31,494 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:49:31,495 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:49:31,495 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:49:31,495 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:49:31,507 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 52 transitions [2019-12-28 04:49:31,584 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-12-28 04:49:31,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-12-28 04:49:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 04:49:31,603 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:31,604 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] [2019-12-28 04:49:31,605 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:31,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:31,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1245236198, now seen corresponding path program 1 times [2019-12-28 04:49:31,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:31,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872046528] [2019-12-28 04:49:31,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:32,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872046528] [2019-12-28 04:49:32,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:32,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:49:32,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1358259473] [2019-12-28 04:49:32,010 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:32,019 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:32,042 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 04:49:32,042 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:32,047 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:49:32,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:49:32,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:32,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:49:32,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:49:32,066 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-12-28 04:49:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:32,184 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-12-28 04:49:32,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:49:32,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-28 04:49:32,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:32,209 INFO L225 Difference]: With dead ends: 1293 [2019-12-28 04:49:32,209 INFO L226 Difference]: Without dead ends: 599 [2019-12-28 04:49:32,211 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 [2019-12-28 04:49:32,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-12-28 04:49:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-12-28 04:49:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-12-28 04:49:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-12-28 04:49:32,319 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-12-28 04:49:32,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:32,320 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-12-28 04:49:32,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:49:32,320 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-12-28 04:49:32,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-28 04:49:32,324 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:32,324 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] [2019-12-28 04:49:32,324 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:32,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:32,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1351365510, now seen corresponding path program 1 times [2019-12-28 04:49:32,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:32,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088505828] [2019-12-28 04:49:32,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:32,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088505828] [2019-12-28 04:49:32,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:32,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:49:32,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [375314115] [2019-12-28 04:49:32,479 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:32,482 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:32,487 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 46 transitions. [2019-12-28 04:49:32,487 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:32,546 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:49:32,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:49:32,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:32,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:49:32,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:49:32,549 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 6 states. [2019-12-28 04:49:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:32,638 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-12-28 04:49:32,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:49:32,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-12-28 04:49:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:32,644 INFO L225 Difference]: With dead ends: 599 [2019-12-28 04:49:32,645 INFO L226 Difference]: Without dead ends: 536 [2019-12-28 04:49:32,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:49:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-12-28 04:49:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-12-28 04:49:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-12-28 04:49:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-12-28 04:49:32,682 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-12-28 04:49:32,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:32,682 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-12-28 04:49:32,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:49:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-12-28 04:49:32,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:49:32,685 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:32,685 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] [2019-12-28 04:49:32,685 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:32,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:32,686 INFO L82 PathProgramCache]: Analyzing trace with hash -360601844, now seen corresponding path program 1 times [2019-12-28 04:49:32,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:32,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324111420] [2019-12-28 04:49:32,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:32,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324111420] [2019-12-28 04:49:32,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:32,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:49:32,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [553506851] [2019-12-28 04:49:32,880 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:32,885 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:32,890 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 40 states and 47 transitions. [2019-12-28 04:49:32,891 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:32,928 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:49:32,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:49:32,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:32,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:49:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:49:32,930 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 7 states. [2019-12-28 04:49:33,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:33,047 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-12-28 04:49:33,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:49:33,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-12-28 04:49:33,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:33,051 INFO L225 Difference]: With dead ends: 401 [2019-12-28 04:49:33,051 INFO L226 Difference]: Without dead ends: 347 [2019-12-28 04:49:33,052 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-28 04:49:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-12-28 04:49:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-12-28 04:49:33,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-12-28 04:49:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-12-28 04:49:33,067 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-12-28 04:49:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:33,067 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-12-28 04:49:33,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:49:33,068 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-12-28 04:49:33,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:49:33,069 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:33,069 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] [2019-12-28 04:49:33,070 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:33,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:33,070 INFO L82 PathProgramCache]: Analyzing trace with hash -645162979, now seen corresponding path program 1 times [2019-12-28 04:49:33,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:33,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651595249] [2019-12-28 04:49:33,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:33,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651595249] [2019-12-28 04:49:33,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:33,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:49:33,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [956960495] [2019-12-28 04:49:33,264 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:33,270 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:33,278 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 48 transitions. [2019-12-28 04:49:33,278 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:33,318 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:49:33,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-28 04:49:33,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:33,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-28 04:49:33,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:49:33,320 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 9 states. [2019-12-28 04:49:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:33,834 INFO L93 Difference]: Finished difference Result 1058 states and 2896 transitions. [2019-12-28 04:49:33,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-28 04:49:33,835 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2019-12-28 04:49:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:33,837 INFO L225 Difference]: With dead ends: 1058 [2019-12-28 04:49:33,838 INFO L226 Difference]: Without dead ends: 251 [2019-12-28 04:49:33,839 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2019-12-28 04:49:33,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-12-28 04:49:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2019-12-28 04:49:33,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-12-28 04:49:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 670 transitions. [2019-12-28 04:49:33,850 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 670 transitions. Word has length 32 [2019-12-28 04:49:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:33,851 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 670 transitions. [2019-12-28 04:49:33,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-28 04:49:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 670 transitions. [2019-12-28 04:49:33,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:49:33,855 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:33,855 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] [2019-12-28 04:49:33,855 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:33,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:33,856 INFO L82 PathProgramCache]: Analyzing trace with hash 853176457, now seen corresponding path program 2 times [2019-12-28 04:49:33,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:33,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933377562] [2019-12-28 04:49:33,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:34,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933377562] [2019-12-28 04:49:34,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:34,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:49:34,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1024284128] [2019-12-28 04:49:34,008 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:34,011 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:34,016 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 33 states and 32 transitions. [2019-12-28 04:49:34,016 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:34,017 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:49:34,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:49:34,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:34,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:49:34,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:49:34,018 INFO L87 Difference]: Start difference. First operand 251 states and 670 transitions. Second operand 8 states. [2019-12-28 04:49:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:34,098 INFO L93 Difference]: Finished difference Result 197 states and 508 transitions. [2019-12-28 04:49:34,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:49:34,098 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-12-28 04:49:34,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:34,099 INFO L225 Difference]: With dead ends: 197 [2019-12-28 04:49:34,099 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:49:34,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-28 04:49:34,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:49:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:49:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:49:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:49:34,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-28 04:49:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:34,101 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:49:34,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:49:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:49:34,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:49:34,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:49:34 BasicIcfg [2019-12-28 04:49:34,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:49:34,110 INFO L168 Benchmark]: Toolchain (without parser) took 4136.05 ms. Allocated memory was 143.7 MB in the beginning and 252.7 MB in the end (delta: 109.1 MB). Free memory was 99.9 MB in the beginning and 138.5 MB in the end (delta: -38.6 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:34,111 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-28 04:49:34,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.40 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 158.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:34,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 201.3 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:34,114 INFO L168 Benchmark]: Boogie Preprocessor took 57.45 ms. Allocated memory is still 201.3 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:34,114 INFO L168 Benchmark]: RCFGBuilder took 491.10 ms. Allocated memory is still 201.3 MB. Free memory was 154.6 MB in the beginning and 134.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:34,115 INFO L168 Benchmark]: TraceAbstraction took 2727.33 ms. Allocated memory was 201.3 MB in the beginning and 252.7 MB in the end (delta: 51.4 MB). Free memory was 133.8 MB in the beginning and 138.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:34,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.40 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 158.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 201.3 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.45 ms. Allocated memory is still 201.3 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.10 ms. Allocated memory is still 201.3 MB. Free memory was 154.6 MB in the beginning and 134.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2727.33 ms. Allocated memory was 201.3 MB in the beginning and 252.7 MB in the end (delta: 51.4 MB). Free memory was 133.8 MB in the beginning and 138.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 46.6 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 274 SDtfs, 372 SDslu, 799 SDs, 0 SdLazy, 141 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 13699 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...