/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:43:27,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:43:27,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:43:27,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:43:27,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:43:27,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:43:27,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:43:27,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:43:27,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:43:27,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:43:27,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:43:27,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:43:27,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:43:27,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:43:27,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:43:27,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:43:27,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:43:27,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:43:27,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:43:27,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:43:27,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:43:27,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:43:27,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:43:27,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:43:27,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:43:27,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:43:27,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:43:27,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:43:27,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:43:27,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:43:27,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:43:27,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:43:27,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:43:27,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:43:27,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:43:27,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:43:27,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:43:27,789 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:43:27,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:43:27,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:43:27,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:43:27,791 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:43:27,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:43:27,792 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:43:27,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:43:27,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:43:27,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:43:27,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:43:27,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:43:27,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:43:27,793 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:43:27,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:43:27,794 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:43:27,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:43:27,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:43:27,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:43:27,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:43:27,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:43:27,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:43:27,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:43:27,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:43:27,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:43:27,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:43:27,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:43:27,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:43:27,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:43:27,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:43:28,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:43:28,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:43:28,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:43:28,101 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:43:28,102 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:43:28,103 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-19 04:43:28,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a535a95d/6884ce5378bf48cd97824db6a3bb5756/FLAGe3be8d2e2 [2019-12-19 04:43:28,684 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:43:28,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-19 04:43:28,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a535a95d/6884ce5378bf48cd97824db6a3bb5756/FLAGe3be8d2e2 [2019-12-19 04:43:28,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a535a95d/6884ce5378bf48cd97824db6a3bb5756 [2019-12-19 04:43:28,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:43:28,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:43:28,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:43:28,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:43:28,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:43:28,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:28" (1/1) ... [2019-12-19 04:43:28,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6e9556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:28, skipping insertion in model container [2019-12-19 04:43:28,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:28" (1/1) ... [2019-12-19 04:43:28,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:43:29,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:43:29,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:43:29,501 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:43:29,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:43:29,625 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:43:29,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29 WrapperNode [2019-12-19 04:43:29,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:43:29,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:43:29,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:43:29,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:43:29,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:43:29,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:43:29,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:43:29,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:43:29,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... [2019-12-19 04:43:29,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:43:29,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:43:29,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:43:29,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:43:29,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:43:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:43:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:43:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:43:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:43:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:43:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:43:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:43:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:43:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:43:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:43:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:43:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:43:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:43:29,779 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:43:30,287 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:43:30,287 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:43:30,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:30 BoogieIcfgContainer [2019-12-19 04:43:30,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:43:30,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:43:30,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:43:30,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:43:30,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:43:28" (1/3) ... [2019-12-19 04:43:30,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310e2f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:30, skipping insertion in model container [2019-12-19 04:43:30,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:29" (2/3) ... [2019-12-19 04:43:30,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310e2f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:30, skipping insertion in model container [2019-12-19 04:43:30,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:30" (3/3) ... [2019-12-19 04:43:30,298 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2019-12-19 04:43:30,308 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:43:30,308 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:43:30,317 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:43:30,318 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:43:30,354 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,355 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,355 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,355 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,356 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,356 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,356 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,357 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,357 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,357 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,357 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,358 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,359 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,359 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,359 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,359 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,360 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,367 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,367 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,367 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,369 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,375 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,376 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,376 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,376 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,385 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,385 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,385 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,386 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:30,406 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:43:30,431 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:43:30,432 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:43:30,432 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:43:30,432 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:43:30,432 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:43:30,433 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:43:30,433 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:43:30,433 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:43:30,450 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:43:30,540 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:43:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:43:30,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:43:30,562 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:30,563 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:30,564 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:30,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:30,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1150370491, now seen corresponding path program 1 times [2019-12-19 04:43:30,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:30,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559458313] [2019-12-19 04:43:30,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:30,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559458313] [2019-12-19 04:43:30,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:30,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:43:30,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779552500] [2019-12-19 04:43:30,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:43:30,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:30,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:43:30,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:43:30,985 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:43:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:31,137 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:43:31,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:43:31,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:43:31,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:31,180 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:43:31,180 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:43:31,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:43:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:43:31,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:43:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:43:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:43:31,298 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:43:31,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:31,298 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:43:31,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:43:31,298 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:43:31,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:43:31,303 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:31,303 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:31,303 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:31,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:31,304 INFO L82 PathProgramCache]: Analyzing trace with hash 960361128, now seen corresponding path program 1 times [2019-12-19 04:43:31,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:31,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706172756] [2019-12-19 04:43:31,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:31,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706172756] [2019-12-19 04:43:31,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:31,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:43:31,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428103005] [2019-12-19 04:43:31,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:43:31,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:31,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:43:31,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:43:31,488 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:43:31,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:31,614 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:43:31,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:43:31,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:43:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:31,620 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:43:31,621 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:43:31,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:43:31,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:43:31,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:43:31,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:43:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:43:31,656 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:43:31,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:31,656 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:43:31,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:43:31,657 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:43:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:43:31,659 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:31,660 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:31,660 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:31,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1678383824, now seen corresponding path program 1 times [2019-12-19 04:43:31,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:31,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342399266] [2019-12-19 04:43:31,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:31,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:31,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342399266] [2019-12-19 04:43:31,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:31,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:43:31,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834400709] [2019-12-19 04:43:31,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:43:31,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:31,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:43:31,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:43:31,880 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:43:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:31,992 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:43:31,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:43:31,992 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:43:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:31,995 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:43:31,996 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:43:31,996 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 [2019-12-19 04:43:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:43:32,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:43:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:43:32,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:43:32,015 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:43:32,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:32,016 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:43:32,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:43:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:43:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:32,018 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:32,018 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] [2019-12-19 04:43:32,018 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:32,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:32,019 INFO L82 PathProgramCache]: Analyzing trace with hash 552941166, now seen corresponding path program 1 times [2019-12-19 04:43:32,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:32,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018312288] [2019-12-19 04:43:32,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:32,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018312288] [2019-12-19 04:43:32,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:32,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:43:32,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358284341] [2019-12-19 04:43:32,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:43:32,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:32,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:43:32,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:43:32,181 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 04:43:32,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:32,307 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-19 04:43:32,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:43:32,308 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:43:32,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:32,311 INFO L225 Difference]: With dead ends: 556 [2019-12-19 04:43:32,311 INFO L226 Difference]: Without dead ends: 325 [2019-12-19 04:43:32,312 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:43:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-19 04:43:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2019-12-19 04:43:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-19 04:43:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-19 04:43:32,326 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-19 04:43:32,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:32,326 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-19 04:43:32,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:43:32,327 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-19 04:43:32,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:32,328 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:32,328 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] [2019-12-19 04:43:32,329 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:32,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:32,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1740039834, now seen corresponding path program 2 times [2019-12-19 04:43:32,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:32,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121947660] [2019-12-19 04:43:32,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:32,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:43:32,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121947660] [2019-12-19 04:43:32,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:32,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:43:32,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952918385] [2019-12-19 04:43:32,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:43:32,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:32,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:43:32,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:43:32,548 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-19 04:43:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:32,766 INFO L93 Difference]: Finished difference Result 433 states and 1143 transitions. [2019-12-19 04:43:32,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:43:32,766 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:43:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:32,767 INFO L225 Difference]: With dead ends: 433 [2019-12-19 04:43:32,769 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:43:32,769 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:43:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:43:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:43:32,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:43:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:43:32,770 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:43:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:32,771 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:43:32,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:43:32,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:43:32,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:43:32,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:43:32 BasicIcfg [2019-12-19 04:43:32,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:43:32,787 INFO L168 Benchmark]: Toolchain (without parser) took 3819.78 ms. Allocated memory was 145.8 MB in the beginning and 250.1 MB in the end (delta: 104.3 MB). Free memory was 102.7 MB in the beginning and 197.2 MB in the end (delta: -94.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:32,789 INFO L168 Benchmark]: CDTParser took 1.71 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-19 04:43:32,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.00 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 160.5 MB in the end (delta: -58.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:32,797 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.10 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:32,798 INFO L168 Benchmark]: Boogie Preprocessor took 27.39 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:32,799 INFO L168 Benchmark]: RCFGBuilder took 583.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 136.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:32,808 INFO L168 Benchmark]: TraceAbstraction took 2492.28 ms. Allocated memory was 203.4 MB in the beginning and 250.1 MB in the end (delta: 46.7 MB). Free memory was 136.1 MB in the beginning and 197.2 MB in the end (delta: -61.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:43:32,815 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.71 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 660.00 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 160.5 MB in the end (delta: -58.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.10 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.39 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 583.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 136.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2492.28 ms. Allocated memory was 203.4 MB in the beginning and 250.1 MB in the end (delta: 46.7 MB). Free memory was 136.1 MB in the beginning and 197.2 MB in the end (delta: -61.1 MB). There was no memory consumed. 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 355 SDslu, 644 SDs, 0 SdLazy, 87 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 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, 0.8s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 14973 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...