/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/safe000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:05:02,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:05:02,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:05:02,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:05:02,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:05:02,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:05:02,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:05:02,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:05:02,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:05:02,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:05:02,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:05:02,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:05:02,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:05:02,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:05:02,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:05:02,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:05:02,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:05:02,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:05:02,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:05:02,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:05:02,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:05:02,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:05:02,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:05:02,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:05:02,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 04:05:02,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 04:05:02,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 04:05:02,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 04:05:02,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 04:05:02,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 04:05:02,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:05:02,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:05:02,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:05:02,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:05:02,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:05:02,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:05:02,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:05:02,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:05:02,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:05:02,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:05:02,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:05:02,452 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 04:05:02,466 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:05:02,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:05:02,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:05:02,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:05:02,468 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:05:02,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:05:02,469 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:05:02,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:05:02,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:05:02,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:05:02,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:05:02,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:05:02,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:05:02,470 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:05:02,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:05:02,471 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:05:02,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:05:02,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:05:02,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:05:02,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:05:02,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:05:02,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:05:02,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:05:02,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:05:02,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:05:02,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:05:02,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:05:02,473 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:05:02,473 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:05:02,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:05:02,474 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:05:02,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:05:02,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:05:02,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:05:02,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:05:02,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:05:02,760 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:05:02,761 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2019-12-28 04:05:02,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebe1135a1/7d522e6a942b4dbe8e079f2910606b0e/FLAG2e92989ca [2019-12-28 04:05:03,384 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:05:03,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2019-12-28 04:05:03,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebe1135a1/7d522e6a942b4dbe8e079f2910606b0e/FLAG2e92989ca [2019-12-28 04:05:03,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebe1135a1/7d522e6a942b4dbe8e079f2910606b0e [2019-12-28 04:05:03,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:05:03,670 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:05:03,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:05:03,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:05:03,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:05:03,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:05:03" (1/1) ... [2019-12-28 04:05:03,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c624005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:03, skipping insertion in model container [2019-12-28 04:05:03,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:05:03" (1/1) ... [2019-12-28 04:05:03,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:05:03,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:05:04,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:05:04,250 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:05:04,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:05:04,376 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:05:04,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04 WrapperNode [2019-12-28 04:05:04,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:05:04,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:05:04,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:05:04,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:05:04,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:05:04,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:05:04,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:05:04,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:05:04,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (1/1) ... [2019-12-28 04:05:04,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:05:04,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:05:04,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:05:04,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:05:04,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (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 04:05:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:05:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:05:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:05:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:05:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:05:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:05:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:05:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:05:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:05:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:05:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:05:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:05:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:05:04,514 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 04:05:04,891 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:05:04,892 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:05:04,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:05:04 BoogieIcfgContainer [2019-12-28 04:05:04,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:05:04,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:05:04,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:05:04,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:05:04,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:05:03" (1/3) ... [2019-12-28 04:05:04,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c55204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:05:04, skipping insertion in model container [2019-12-28 04:05:04,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:04" (2/3) ... [2019-12-28 04:05:04,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c55204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:05:04, skipping insertion in model container [2019-12-28 04:05:04,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:05:04" (3/3) ... [2019-12-28 04:05:04,902 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_tso.opt.i [2019-12-28 04:05:04,911 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:05:04,911 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:05:04,918 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:05:04,919 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:05:04,954 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,955 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,955 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,956 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,956 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,956 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,957 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,957 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,958 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,958 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,958 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,958 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,959 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,959 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,959 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,960 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,961 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,961 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,966 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,966 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,966 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,967 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,979 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,980 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,980 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,981 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,983 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,984 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,984 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:04,984 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:05,000 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:05:05,021 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:05:05,022 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:05:05,022 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:05:05,022 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:05:05,022 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:05:05,022 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:05:05,023 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:05:05,023 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:05:05,035 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 04:05:05,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 04:05:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 04:05:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:05:05,146 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:05,148 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 04:05:05,148 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:05,155 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-28 04:05:05,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:05,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279279470] [2019-12-28 04:05:05,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:05,568 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 04:05:05,569 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279279470] [2019-12-28 04:05:05,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:05,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:05:05,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1035071161] [2019-12-28 04:05:05,572 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:05,582 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:05,610 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 04:05:05,611 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:05,618 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:05,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:05:05,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:05,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:05:05,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:05:05,639 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 04:05:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:05,764 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 04:05:05,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:05:05,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 04:05:05,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:05,792 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 04:05:05,792 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 04:05:05,794 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 04:05:05,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 04:05:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 04:05:05,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 04:05:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 04:05:05,905 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 04:05:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:05,906 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 04:05:05,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:05:05,907 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 04:05:05,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:05:05,915 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:05,915 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 04:05:05,916 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:05,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:05,916 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-28 04:05:05,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:05,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376101053] [2019-12-28 04:05:05,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:06,080 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 04:05:06,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376101053] [2019-12-28 04:05:06,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:06,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:05:06,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1577579271] [2019-12-28 04:05:06,081 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:06,087 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:06,091 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 04:05:06,092 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:06,094 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:06,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:05:06,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:06,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:05:06,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:05:06,103 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 04:05:06,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:06,172 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 04:05:06,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:05:06,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 04:05:06,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:06,178 INFO L225 Difference]: With dead ends: 601 [2019-12-28 04:05:06,179 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 04:05:06,180 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 [2019-12-28 04:05:06,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 04:05:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 04:05:06,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 04:05:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 04:05:06,213 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 04:05:06,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:06,213 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 04:05:06,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:05:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 04:05:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 04:05:06,215 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:06,216 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] [2019-12-28 04:05:06,216 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:06,216 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-28 04:05:06,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:06,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431789859] [2019-12-28 04:05:06,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:06,354 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 04:05:06,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431789859] [2019-12-28 04:05:06,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:06,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:05:06,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1044734363] [2019-12-28 04:05:06,355 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:06,359 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:06,364 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 04:05:06,365 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:06,365 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:06,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:05:06,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:06,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:05:06,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:05:06,366 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 04:05:06,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:06,466 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 04:05:06,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:05:06,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 04:05:06,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:06,470 INFO L225 Difference]: With dead ends: 403 [2019-12-28 04:05:06,470 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 04:05:06,471 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 [2019-12-28 04:05:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 04:05:06,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 04:05:06,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 04:05:06,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 04:05:06,507 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 04:05:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:06,508 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 04:05:06,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:05:06,509 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 04:05:06,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:05:06,516 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:06,517 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, 1] [2019-12-28 04:05:06,517 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:06,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:06,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-28 04:05:06,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:06,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271301854] [2019-12-28 04:05:06,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:06,794 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 04:05:06,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271301854] [2019-12-28 04:05:06,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:06,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:05:06,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1707687052] [2019-12-28 04:05:06,797 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:06,803 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:06,811 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 04:05:06,812 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:06,812 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:06,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:05:06,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:06,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:05:06,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:05:06,814 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-28 04:05:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:07,084 INFO L93 Difference]: Finished difference Result 718 states and 1938 transitions. [2019-12-28 04:05:07,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-28 04:05:07,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 04:05:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:07,087 INFO L225 Difference]: With dead ends: 718 [2019-12-28 04:05:07,087 INFO L226 Difference]: Without dead ends: 313 [2019-12-28 04:05:07,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-28 04:05:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-28 04:05:07,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-28 04:05:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-28 04:05:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-28 04:05:07,099 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-28 04:05:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:07,100 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-28 04:05:07,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:05:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-28 04:05:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:05:07,101 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:07,101 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, 1] [2019-12-28 04:05:07,102 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:07,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:07,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 2 times [2019-12-28 04:05:07,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:07,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377365617] [2019-12-28 04:05:07,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:07,256 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 04:05:07,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377365617] [2019-12-28 04:05:07,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:07,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:05:07,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [998171240] [2019-12-28 04:05:07,258 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:07,262 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:07,270 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 58 transitions. [2019-12-28 04:05:07,275 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:07,433 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-28 04:05:07,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-28 04:05:07,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:07,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-28 04:05:07,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-28 04:05:07,438 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 10 states. [2019-12-28 04:05:07,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:07,544 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-28 04:05:07,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:05:07,544 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-12-28 04:05:07,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:07,544 INFO L225 Difference]: With dead ends: 259 [2019-12-28 04:05:07,545 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:05:07,545 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-12-28 04:05:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:05:07,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:05:07,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:05:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:05:07,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 04:05:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:07,546 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:05:07,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-28 04:05:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:05:07,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:05:07,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:05:07 BasicIcfg [2019-12-28 04:05:07,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:05:07,557 INFO L168 Benchmark]: Toolchain (without parser) took 3886.59 ms. Allocated memory was 137.9 MB in the beginning and 252.7 MB in the end (delta: 114.8 MB). Free memory was 100.8 MB in the beginning and 156.7 MB in the end (delta: -55.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:07,558 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-28 04:05:07,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.27 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 157.1 MB in the end (delta: -56.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:07,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.55 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:07,561 INFO L168 Benchmark]: Boogie Preprocessor took 23.80 ms. Allocated memory is still 202.4 MB. Free memory was 155.0 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:07,562 INFO L168 Benchmark]: RCFGBuilder took 444.84 ms. Allocated memory is still 202.4 MB. Free memory was 153.7 MB in the beginning and 132.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:07,563 INFO L168 Benchmark]: TraceAbstraction took 2658.49 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 132.8 MB in the beginning and 156.7 MB in the end (delta: -24.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:07,567 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.27 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 157.1 MB in the end (delta: -56.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.55 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.80 ms. Allocated memory is still 202.4 MB. Free memory was 155.0 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.84 ms. Allocated memory is still 202.4 MB. Free memory was 153.7 MB in the beginning and 132.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2658.49 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 132.8 MB in the beginning and 156.7 MB in the end (delta: -24.0 MB). Peak memory consumption was 26.4 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 367 SDslu, 593 SDs, 0 SdLazy, 93 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 16491 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...