/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/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:34:22,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:34:22,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:34:22,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:34:22,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:34:22,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:34:22,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:34:22,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:34:22,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:34:22,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:34:22,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:34:22,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:34:22,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:34:22,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:34:22,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:34:22,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:34:22,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:34:22,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:34:22,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:34:22,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:34:22,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:34:22,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:34:22,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:34:22,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:34:22,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:34:22,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:34:22,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:34:22,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:34:22,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:34:22,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:34:22,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:34:22,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:34:22,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:34:22,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:34:22,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:34:22,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:34:22,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:34:22,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:34:22,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:34:22,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:34:22,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:34:22,696 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 05:34:22,711 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:34:22,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:34:22,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:34:22,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:34:22,713 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:34:22,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:34:22,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:34:22,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:34:22,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:34:22,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:34:22,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:34:22,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:34:22,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:34:22,715 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:34:22,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:34:22,715 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:34:22,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:34:22,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:34:22,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:34:22,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:34:22,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:34:22,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:34:22,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:34:22,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:34:22,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:34:22,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:34:22,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:34:22,717 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:34:22,718 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:34:22,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:34:22,718 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:34:22,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:34:23,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:34:23,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:34:23,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:34:23,050 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:34:23,051 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:34:23,052 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2019-12-28 05:34:23,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ae1de2b/20aa446d319a40969c62acf249160415/FLAG8685dd511 [2019-12-28 05:34:23,683 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:34:23,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2019-12-28 05:34:23,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ae1de2b/20aa446d319a40969c62acf249160415/FLAG8685dd511 [2019-12-28 05:34:24,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ae1de2b/20aa446d319a40969c62acf249160415 [2019-12-28 05:34:24,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:34:24,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:34:24,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:34:24,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:34:24,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:34:24,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3740cb04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24, skipping insertion in model container [2019-12-28 05:34:24,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:34:24,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:34:24,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:34:24,665 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:34:24,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:34:24,812 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:34:24,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24 WrapperNode [2019-12-28 05:34:24,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:34:24,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:34:24,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:34:24,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:34:24,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:34:24,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:34:24,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:34:24,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:34:24,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... [2019-12-28 05:34:24,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:34:24,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:34:24,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:34:24,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:34:24,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:34:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:34:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:34:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:34:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:34:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:34:24,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:34:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:34:24,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:34:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:34:24,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:34:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-28 05:34:24,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-28 05:34:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:34:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:34:24,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:34:24,993 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 05:34:25,439 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:34:25,440 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:34:25,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:34:25 BoogieIcfgContainer [2019-12-28 05:34:25,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:34:25,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:34:25,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:34:25,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:34:25,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:34:24" (1/3) ... [2019-12-28 05:34:25,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40183947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:34:25, skipping insertion in model container [2019-12-28 05:34:25,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:34:24" (2/3) ... [2019-12-28 05:34:25,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40183947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:34:25, skipping insertion in model container [2019-12-28 05:34:25,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:34:25" (3/3) ... [2019-12-28 05:34:25,455 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2019-12-28 05:34:25,467 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:34:25,467 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:34:25,478 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:34:25,479 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:34:25,514 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,514 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,514 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,515 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,515 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,515 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,516 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,516 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,516 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,517 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,517 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,517 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,518 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,518 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,518 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,518 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,519 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,519 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,519 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,520 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,520 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,520 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,520 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,521 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,524 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,525 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,525 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,525 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,535 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,535 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,535 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,536 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,539 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,540 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,540 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,540 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,543 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,543 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,544 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,544 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:34:25,556 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 05:34:25,573 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:34:25,573 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:34:25,573 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:34:25,573 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:34:25,573 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:34:25,573 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:34:25,574 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:34:25,574 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:34:25,585 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 67 transitions [2019-12-28 05:34:25,950 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5475 states. [2019-12-28 05:34:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states. [2019-12-28 05:34:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-28 05:34:25,993 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:25,994 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, 1, 1, 1, 1] [2019-12-28 05:34:25,995 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:26,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2004379789, now seen corresponding path program 1 times [2019-12-28 05:34:26,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:26,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863872791] [2019-12-28 05:34:26,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:26,468 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 05:34:26,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863872791] [2019-12-28 05:34:26,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:26,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:34:26,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [758417961] [2019-12-28 05:34:26,472 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:26,480 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:26,506 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 38 transitions. [2019-12-28 05:34:26,506 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:26,511 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:34:26,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:34:26,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:26,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:34:26,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:34:26,531 INFO L87 Difference]: Start difference. First operand 5475 states. Second operand 4 states. [2019-12-28 05:34:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:26,711 INFO L93 Difference]: Finished difference Result 5712 states and 21937 transitions. [2019-12-28 05:34:26,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:34:26,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-12-28 05:34:26,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:26,768 INFO L225 Difference]: With dead ends: 5712 [2019-12-28 05:34:26,768 INFO L226 Difference]: Without dead ends: 2396 [2019-12-28 05:34:26,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:34:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2019-12-28 05:34:26,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2019-12-28 05:34:26,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2019-12-28 05:34:27,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 8940 transitions. [2019-12-28 05:34:27,021 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 8940 transitions. Word has length 38 [2019-12-28 05:34:27,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:27,022 INFO L462 AbstractCegarLoop]: Abstraction has 2396 states and 8940 transitions. [2019-12-28 05:34:27,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:34:27,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 8940 transitions. [2019-12-28 05:34:27,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 05:34:27,029 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:27,030 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, 1, 1, 1, 1, 1] [2019-12-28 05:34:27,030 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:27,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1300611009, now seen corresponding path program 1 times [2019-12-28 05:34:27,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:27,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455504344] [2019-12-28 05:34:27,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:27,248 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 05:34:27,249 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455504344] [2019-12-28 05:34:27,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:27,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:34:27,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [90309703] [2019-12-28 05:34:27,250 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:27,255 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:27,269 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 52 states and 63 transitions. [2019-12-28 05:34:27,269 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:27,323 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2019-12-28 05:34:27,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:34:27,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:27,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:34:27,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:34:27,326 INFO L87 Difference]: Start difference. First operand 2396 states and 8940 transitions. Second operand 6 states. [2019-12-28 05:34:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:27,467 INFO L93 Difference]: Finished difference Result 2567 states and 9324 transitions. [2019-12-28 05:34:27,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:34:27,468 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-12-28 05:34:27,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:27,487 INFO L225 Difference]: With dead ends: 2567 [2019-12-28 05:34:27,488 INFO L226 Difference]: Without dead ends: 2312 [2019-12-28 05:34:27,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:27,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2019-12-28 05:34:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2019-12-28 05:34:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2019-12-28 05:34:27,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 8548 transitions. [2019-12-28 05:34:27,615 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 8548 transitions. Word has length 39 [2019-12-28 05:34:27,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:27,616 INFO L462 AbstractCegarLoop]: Abstraction has 2312 states and 8548 transitions. [2019-12-28 05:34:27,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:34:27,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 8548 transitions. [2019-12-28 05:34:27,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:34:27,624 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:27,624 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, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:27,624 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:27,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:27,625 INFO L82 PathProgramCache]: Analyzing trace with hash -448422512, now seen corresponding path program 1 times [2019-12-28 05:34:27,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:27,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840257746] [2019-12-28 05:34:27,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:27,823 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 05:34:27,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840257746] [2019-12-28 05:34:27,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:27,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:34:27,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1120264804] [2019-12-28 05:34:27,827 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:27,837 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:27,847 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 61 states and 80 transitions. [2019-12-28 05:34:27,848 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:27,884 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 6 times. [2019-12-28 05:34:27,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:34:27,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:27,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:34:27,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:34:27,885 INFO L87 Difference]: Start difference. First operand 2312 states and 8548 transitions. Second operand 7 states. [2019-12-28 05:34:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:28,047 INFO L93 Difference]: Finished difference Result 2177 states and 7684 transitions. [2019-12-28 05:34:28,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:34:28,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:34:28,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:28,064 INFO L225 Difference]: With dead ends: 2177 [2019-12-28 05:34:28,065 INFO L226 Difference]: Without dead ends: 1934 [2019-12-28 05:34:28,065 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-28 05:34:28,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2019-12-28 05:34:28,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1934. [2019-12-28 05:34:28,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-12-28 05:34:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 6910 transitions. [2019-12-28 05:34:28,186 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 6910 transitions. Word has length 40 [2019-12-28 05:34:28,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:28,186 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 6910 transitions. [2019-12-28 05:34:28,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:34:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 6910 transitions. [2019-12-28 05:34:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-28 05:34:28,191 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:28,191 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:28,191 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:28,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:28,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1962214962, now seen corresponding path program 1 times [2019-12-28 05:34:28,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:28,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360666141] [2019-12-28 05:34:28,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:28,301 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 05:34:28,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360666141] [2019-12-28 05:34:28,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:28,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:34:28,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [980541214] [2019-12-28 05:34:28,303 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:28,312 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:28,325 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 66 states and 89 transitions. [2019-12-28 05:34:28,325 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:28,371 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 6 times. [2019-12-28 05:34:28,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:34:28,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:28,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:34:28,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:28,372 INFO L87 Difference]: Start difference. First operand 1934 states and 6910 transitions. Second operand 8 states. [2019-12-28 05:34:28,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:28,543 INFO L93 Difference]: Finished difference Result 1367 states and 4534 transitions. [2019-12-28 05:34:28,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:34:28,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-28 05:34:28,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:28,553 INFO L225 Difference]: With dead ends: 1367 [2019-12-28 05:34:28,553 INFO L226 Difference]: Without dead ends: 1178 [2019-12-28 05:34:28,554 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:34:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-12-28 05:34:28,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2019-12-28 05:34:28,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2019-12-28 05:34:28,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 3886 transitions. [2019-12-28 05:34:28,599 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 3886 transitions. Word has length 41 [2019-12-28 05:34:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:28,602 INFO L462 AbstractCegarLoop]: Abstraction has 1178 states and 3886 transitions. [2019-12-28 05:34:28,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:34:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 3886 transitions. [2019-12-28 05:34:28,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:28,606 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:28,606 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:28,606 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:28,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:28,611 INFO L82 PathProgramCache]: Analyzing trace with hash 235705111, now seen corresponding path program 1 times [2019-12-28 05:34:28,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:28,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560849483] [2019-12-28 05:34:28,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:28,777 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 05:34:28,778 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560849483] [2019-12-28 05:34:28,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:28,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:34:28,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2042894887] [2019-12-28 05:34:28,779 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:28,785 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:28,797 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 67 states and 90 transitions. [2019-12-28 05:34:28,797 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:28,831 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2019-12-28 05:34:28,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:34:28,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:28,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:34:28,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:28,833 INFO L87 Difference]: Start difference. First operand 1178 states and 3886 transitions. Second operand 8 states. [2019-12-28 05:34:28,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:28,999 INFO L93 Difference]: Finished difference Result 1727 states and 5779 transitions. [2019-12-28 05:34:29,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:34:29,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-28 05:34:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:29,007 INFO L225 Difference]: With dead ends: 1727 [2019-12-28 05:34:29,007 INFO L226 Difference]: Without dead ends: 878 [2019-12-28 05:34:29,007 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:34:29,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2019-12-28 05:34:29,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2019-12-28 05:34:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2019-12-28 05:34:29,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2890 transitions. [2019-12-28 05:34:29,047 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2890 transitions. Word has length 42 [2019-12-28 05:34:29,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:29,048 INFO L462 AbstractCegarLoop]: Abstraction has 878 states and 2890 transitions. [2019-12-28 05:34:29,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:34:29,048 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2890 transitions. [2019-12-28 05:34:29,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:29,051 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:29,051 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:29,051 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:29,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:29,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1056006217, now seen corresponding path program 2 times [2019-12-28 05:34:29,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:29,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726347474] [2019-12-28 05:34:29,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:29,214 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 05:34:29,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726347474] [2019-12-28 05:34:29,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:29,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:34:29,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1546611117] [2019-12-28 05:34:29,215 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:29,222 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:29,232 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 55 states and 66 transitions. [2019-12-28 05:34:29,233 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:29,233 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-28 05:34:29,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:34:29,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:29,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:34:29,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:34:29,235 INFO L87 Difference]: Start difference. First operand 878 states and 2890 transitions. Second operand 7 states. [2019-12-28 05:34:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:29,331 INFO L93 Difference]: Finished difference Result 1391 states and 4672 transitions. [2019-12-28 05:34:29,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:34:29,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-12-28 05:34:29,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:29,340 INFO L225 Difference]: With dead ends: 1391 [2019-12-28 05:34:29,340 INFO L226 Difference]: Without dead ends: 770 [2019-12-28 05:34:29,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:34:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-12-28 05:34:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2019-12-28 05:34:29,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2019-12-28 05:34:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2578 transitions. [2019-12-28 05:34:29,365 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2578 transitions. Word has length 42 [2019-12-28 05:34:29,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:29,365 INFO L462 AbstractCegarLoop]: Abstraction has 770 states and 2578 transitions. [2019-12-28 05:34:29,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:34:29,366 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2578 transitions. [2019-12-28 05:34:29,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:29,368 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:29,369 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:29,369 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:29,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:29,369 INFO L82 PathProgramCache]: Analyzing trace with hash -112551247, now seen corresponding path program 3 times [2019-12-28 05:34:29,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:29,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419910719] [2019-12-28 05:34:29,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:29,554 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 05:34:29,554 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419910719] [2019-12-28 05:34:29,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:29,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:34:29,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1319659978] [2019-12-28 05:34:29,555 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:29,561 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:29,573 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 50 transitions. [2019-12-28 05:34:29,573 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:29,574 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:34:29,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:34:29,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:29,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:34:29,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:34:29,576 INFO L87 Difference]: Start difference. First operand 770 states and 2578 transitions. Second operand 8 states. [2019-12-28 05:34:29,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:29,705 INFO L93 Difference]: Finished difference Result 1256 states and 4279 transitions. [2019-12-28 05:34:29,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:34:29,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-28 05:34:29,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:29,713 INFO L225 Difference]: With dead ends: 1256 [2019-12-28 05:34:29,713 INFO L226 Difference]: Without dead ends: 719 [2019-12-28 05:34:29,714 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 05:34:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-12-28 05:34:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2019-12-28 05:34:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2019-12-28 05:34:29,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 2434 transitions. [2019-12-28 05:34:29,739 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 2434 transitions. Word has length 42 [2019-12-28 05:34:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:29,739 INFO L462 AbstractCegarLoop]: Abstraction has 719 states and 2434 transitions. [2019-12-28 05:34:29,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:34:29,739 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 2434 transitions. [2019-12-28 05:34:29,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-28 05:34:29,741 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:34:29,741 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:34:29,742 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:34:29,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:34:29,743 INFO L82 PathProgramCache]: Analyzing trace with hash -267044461, now seen corresponding path program 4 times [2019-12-28 05:34:29,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:34:29,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304922075] [2019-12-28 05:34:29,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:34:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:34:29,871 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 05:34:29,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304922075] [2019-12-28 05:34:29,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:34:29,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:34:29,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1097775684] [2019-12-28 05:34:29,872 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:34:29,878 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:34:29,889 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 43 states and 42 transitions. [2019-12-28 05:34:29,889 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:34:29,890 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:34:29,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:34:29,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:34:29,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:34:29,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:34:29,891 INFO L87 Difference]: Start difference. First operand 719 states and 2434 transitions. Second operand 7 states. [2019-12-28 05:34:30,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:34:30,013 INFO L93 Difference]: Finished difference Result 557 states and 1840 transitions. [2019-12-28 05:34:30,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:34:30,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-12-28 05:34:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:34:30,014 INFO L225 Difference]: With dead ends: 557 [2019-12-28 05:34:30,014 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:34:30,014 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:34:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:34:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:34:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:34:30,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:34:30,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-12-28 05:34:30,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:34:30,015 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:34:30,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:34:30,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:34:30,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:34:30,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:34:30 BasicIcfg [2019-12-28 05:34:30,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:34:30,029 INFO L168 Benchmark]: Toolchain (without parser) took 6002.74 ms. Allocated memory was 143.7 MB in the beginning and 316.7 MB in the end (delta: 173.0 MB). Free memory was 99.8 MB in the beginning and 260.0 MB in the end (delta: -160.2 MB). Peak memory consumption was 194.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:30,030 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-28 05:34:30,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.59 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 158.6 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:30,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.39 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:30,032 INFO L168 Benchmark]: Boogie Preprocessor took 26.01 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:30,035 INFO L168 Benchmark]: RCFGBuilder took 532.52 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 131.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:30,036 INFO L168 Benchmark]: TraceAbstraction took 4575.82 ms. Allocated memory was 202.4 MB in the beginning and 316.7 MB in the end (delta: 114.3 MB). Free memory was 131.8 MB in the beginning and 260.0 MB in the end (delta: -128.2 MB). Peak memory consumption was 167.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:34:30,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.59 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 158.6 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.39 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.01 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 532.52 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 131.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4575.82 ms. Allocated memory was 202.4 MB in the beginning and 316.7 MB in the end (delta: 114.3 MB). Free memory was 131.8 MB in the beginning and 260.0 MB in the end (delta: -128.2 MB). Peak memory consumption was 167.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 4.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 793 SDslu, 1341 SDs, 0 SdLazy, 200 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred 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: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 37890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...