/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/safe023_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:01:23,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:01:23,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:01:23,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:01:23,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:01:23,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:01:23,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:01:23,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:01:23,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:01:23,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:01:23,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:01:23,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:01:23,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:01:23,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:01:23,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:01:23,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:01:23,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:01:23,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:01:23,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:01:23,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:01:23,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:01:23,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:01:23,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:01:23,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:01:23,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:01:23,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:01:23,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:01:23,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:01:23,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:01:23,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:01:23,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:01:23,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:01:23,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:01:23,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:01:23,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:01:23,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:01:23,560 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 05:01:23,574 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:01:23,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:01:23,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:01:23,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:01:23,576 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:01:23,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:01:23,577 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:01:23,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:01:23,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:01:23,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:01:23,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:01:23,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:01:23,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:01:23,578 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:01:23,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:01:23,578 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:01:23,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:01:23,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:01:23,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:01:23,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:01:23,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:01:23,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:01:23,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:01:23,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:01:23,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:01:23,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:01:23,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:01:23,581 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:01:23,581 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:01:23,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:01:23,581 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:01:23,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:01:23,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:01:23,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:01:23,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:01:23,880 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:01:23,882 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:01:23,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2019-12-28 05:01:23,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e0a4ed0/962195d37a5b4407a83eb0da9edeccac/FLAG317b83f53 [2019-12-28 05:01:24,487 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:01:24,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2019-12-28 05:01:24,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e0a4ed0/962195d37a5b4407a83eb0da9edeccac/FLAG317b83f53 [2019-12-28 05:01:24,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e0a4ed0/962195d37a5b4407a83eb0da9edeccac [2019-12-28 05:01:24,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:01:24,793 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:01:24,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:01:24,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:01:24,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:01:24,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:01:24" (1/1) ... [2019-12-28 05:01:24,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6294424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:24, skipping insertion in model container [2019-12-28 05:01:24,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:01:24" (1/1) ... [2019-12-28 05:01:24,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:01:24,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:01:25,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:01:25,365 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:01:25,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:01:25,513 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:01:25,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25 WrapperNode [2019-12-28 05:01:25,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:01:25,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:01:25,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:01:25,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:01:25,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:01:25,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:01:25,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:01:25,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:01:25,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (1/1) ... [2019-12-28 05:01:25,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:01:25,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:01:25,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:01:25,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:01:25,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (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 05:01:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:01:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:01:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:01:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:01:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:01:25,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:01:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:01:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:01:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:01:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:01:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:01:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:01:25,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:01:25,667 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 05:01:26,039 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:01:26,039 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:01:26,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:01:26 BoogieIcfgContainer [2019-12-28 05:01:26,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:01:26,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:01:26,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:01:26,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:01:26,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:01:24" (1/3) ... [2019-12-28 05:01:26,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2e037e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:01:26, skipping insertion in model container [2019-12-28 05:01:26,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:01:25" (2/3) ... [2019-12-28 05:01:26,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2e037e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:01:26, skipping insertion in model container [2019-12-28 05:01:26,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:01:26" (3/3) ... [2019-12-28 05:01:26,049 INFO L109 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc.i [2019-12-28 05:01:26,059 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:01:26,059 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:01:26,067 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:01:26,068 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:01:26,096 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,097 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,097 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,097 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,098 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,099 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,099 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,099 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,099 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,100 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,100 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,100 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,101 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,101 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,101 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,101 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,101 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,102 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,105 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,105 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,105 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,106 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,111 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,112 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,112 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,112 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,115 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,115 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,115 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,116 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:01:26,134 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:01:26,157 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:01:26,158 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:01:26,158 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:01:26,159 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:01:26,159 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:01:26,159 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:01:26,160 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:01:26,160 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:01:26,173 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 05:01:26,251 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 05:01:26,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 05:01:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:01:26,269 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:26,270 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 05:01:26,271 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:26,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-28 05:01:26,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:26,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821670618] [2019-12-28 05:01:26,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:26,699 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 05:01:26,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821670618] [2019-12-28 05:01:26,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:26,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:01:26,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1150402698] [2019-12-28 05:01:26,703 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:26,712 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:26,734 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 05:01:26,735 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:26,739 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:26,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:01:26,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:26,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:01:26,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:01:26,756 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 05:01:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:26,896 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 05:01:26,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:01:26,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 05:01:26,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:26,922 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 05:01:26,922 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 05:01:26,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:01:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 05:01:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 05:01:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 05:01:27,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 05:01:27,034 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 05:01:27,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:27,035 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 05:01:27,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:01:27,036 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 05:01:27,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:01:27,044 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:27,045 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 05:01:27,045 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:27,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:27,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-28 05:01:27,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:27,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579332845] [2019-12-28 05:01:27,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:27,250 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 05:01:27,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579332845] [2019-12-28 05:01:27,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:27,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:01:27,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1985412129] [2019-12-28 05:01:27,251 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:27,255 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:27,259 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 05:01:27,260 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:27,261 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:27,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:01:27,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:27,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:01:27,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:01:27,264 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 05:01:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:27,343 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 05:01:27,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:01:27,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 05:01:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:27,349 INFO L225 Difference]: With dead ends: 601 [2019-12-28 05:01:27,349 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 05:01:27,350 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 05:01:27,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 05:01:27,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 05:01:27,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 05:01:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 05:01:27,382 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 05:01:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:27,383 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 05:01:27,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:01:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 05:01:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:01:27,385 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:27,385 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 05:01:27,385 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:27,386 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-28 05:01:27,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:27,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490560711] [2019-12-28 05:01:27,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:27,576 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 05:01:27,577 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490560711] [2019-12-28 05:01:27,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:27,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:01:27,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [391303610] [2019-12-28 05:01:27,578 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:27,583 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:27,589 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 05:01:27,590 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:27,590 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:27,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:01:27,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:27,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:01:27,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:01:27,592 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 05:01:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:27,709 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 05:01:27,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:01:27,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 05:01:27,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:27,714 INFO L225 Difference]: With dead ends: 403 [2019-12-28 05:01:27,714 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 05:01:27,715 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:01:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 05:01:27,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 05:01:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 05:01:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 05:01:27,737 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 05:01:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:27,738 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 05:01:27,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:01:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 05:01:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:01:27,744 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:27,745 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 05:01:27,745 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:27,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:27,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-28 05:01:27,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:27,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127444586] [2019-12-28 05:01:27,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:27,973 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 05:01:27,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127444586] [2019-12-28 05:01:27,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:27,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:01:27,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2070846298] [2019-12-28 05:01:27,975 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:27,981 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:27,988 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 05:01:27,988 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:27,989 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:27,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:01:27,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:27,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:01:27,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:01:27,990 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-28 05:01:28,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:28,369 INFO L93 Difference]: Finished difference Result 889 states and 2418 transitions. [2019-12-28 05:01:28,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-28 05:01:28,370 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 05:01:28,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:28,373 INFO L225 Difference]: With dead ends: 889 [2019-12-28 05:01:28,374 INFO L226 Difference]: Without dead ends: 280 [2019-12-28 05:01:28,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2019-12-28 05:01:28,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-28 05:01:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-12-28 05:01:28,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-28 05:01:28,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-28 05:01:28,386 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-28 05:01:28,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:28,386 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-28 05:01:28,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:01:28,386 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-28 05:01:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:01:28,387 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:01:28,387 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 05:01:28,388 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:01:28,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:01:28,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 2 times [2019-12-28 05:01:28,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:01:28,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252259801] [2019-12-28 05:01:28,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:01:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:01:28,543 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 05:01:28,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252259801] [2019-12-28 05:01:28,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:01:28,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:01:28,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [37096862] [2019-12-28 05:01:28,544 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:01:28,547 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:01:28,552 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 35 states and 34 transitions. [2019-12-28 05:01:28,553 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:01:28,553 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:01:28,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:01:28,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:01:28,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:01:28,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:01:28,554 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 8 states. [2019-12-28 05:01:28,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:01:28,655 INFO L93 Difference]: Finished difference Result 226 states and 564 transitions. [2019-12-28 05:01:28,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:01:28,655 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 05:01:28,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:01:28,656 INFO L225 Difference]: With dead ends: 226 [2019-12-28 05:01:28,658 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:01:28,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:01:28,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:01:28,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:01:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:01:28,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:01:28,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 05:01:28,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:01:28,660 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:01:28,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:01:28,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:01:28,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:01:28,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:01:28 BasicIcfg [2019-12-28 05:01:28,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:01:28,672 INFO L168 Benchmark]: Toolchain (without parser) took 3877.02 ms. Allocated memory was 137.9 MB in the beginning and 250.6 MB in the end (delta: 112.7 MB). Free memory was 101.3 MB in the beginning and 153.7 MB in the end (delta: -52.4 MB). Peak memory consumption was 60.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:28,674 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-28 05:01:28,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.01 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 159.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:28,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.49 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:28,683 INFO L168 Benchmark]: Boogie Preprocessor took 28.99 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 156.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:28,684 INFO L168 Benchmark]: RCFGBuilder took 444.67 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 135.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:28,685 INFO L168 Benchmark]: TraceAbstraction took 2625.56 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 135.6 MB in the beginning and 153.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:01:28,699 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.01 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 159.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.49 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.99 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 156.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.67 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 135.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2625.56 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 135.6 MB in the beginning and 153.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 353 SDslu, 711 SDs, 0 SdLazy, 108 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s 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, 0.8s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15831 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...