/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:30:53,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:30:53,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:30:53,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:30:53,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:30:53,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:30:53,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:30:53,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:30:53,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:30:53,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:30:53,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:30:53,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:30:53,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:30:53,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:30:53,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:30:53,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:30:53,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:30:53,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:30:53,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:30:53,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:30:53,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:30:53,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:30:53,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:30:53,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:30:53,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:30:53,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:30:53,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:30:53,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:30:53,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:30:53,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:30:53,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:30:53,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:30:53,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:30:53,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:30:53,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:30:53,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:30:53,962 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-SemanticLbe-MCR.epf [2019-12-27 18:30:53,983 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:30:53,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:30:53,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:30:53,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:30:53,987 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:30:53,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:30:53,987 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:30:53,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:30:53,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:30:53,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:30:53,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:30:53,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:30:53,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:30:53,990 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:30:53,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:30:53,990 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:30:53,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:30:53,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:30:53,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:30:53,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:30:53,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:30:53,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:30:53,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:30:53,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:30:53,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:30:53,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:30:53,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:30:53,993 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:30:53,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:30:53,993 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:30:53,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:30:54,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:30:54,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:30:54,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:30:54,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:30:54,313 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:30:54,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 18:30:54,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cc4a211/9cb64ff031d74e6cb79e4cae902a442c/FLAG162785ccb [2019-12-27 18:30:54,911 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:30:54,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 18:30:54,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cc4a211/9cb64ff031d74e6cb79e4cae902a442c/FLAG162785ccb [2019-12-27 18:30:55,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cc4a211/9cb64ff031d74e6cb79e4cae902a442c [2019-12-27 18:30:55,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:30:55,255 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:30:55,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:30:55,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:30:55,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:30:55,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:55,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ee76dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55, skipping insertion in model container [2019-12-27 18:30:55,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:55,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:30:55,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:30:55,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:30:55,803 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:30:55,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:30:55,933 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:30:55,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55 WrapperNode [2019-12-27 18:30:55,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:30:55,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:30:55,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:30:55,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:30:55,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:55,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:55,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:30:55,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:30:55,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:30:55,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:30:55,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:55,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:55,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:55,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:56,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:56,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:56,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (1/1) ... [2019-12-27 18:30:56,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:30:56,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:30:56,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:30:56,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:30:56,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (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 [2019-12-27 18:30:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:30:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:30:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:30:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:30:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:30:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:30:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:30:56,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:30:56,083 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:30:56,456 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:30:56,456 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:30:56,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:30:56 BoogieIcfgContainer [2019-12-27 18:30:56,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:30:56,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:30:56,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:30:56,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:30:56,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:30:55" (1/3) ... [2019-12-27 18:30:56,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cd682b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:30:56, skipping insertion in model container [2019-12-27 18:30:56,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:30:55" (2/3) ... [2019-12-27 18:30:56,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cd682b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:30:56, skipping insertion in model container [2019-12-27 18:30:56,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:30:56" (3/3) ... [2019-12-27 18:30:56,467 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-12-27 18:30:56,476 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:30:56,476 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:30:56,483 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:30:56,484 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:30:56,516 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,517 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,519 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,519 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,519 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,520 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,521 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,521 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,521 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,521 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,522 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,522 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,526 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,527 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,527 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,527 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,533 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,533 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,533 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,534 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,536 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,537 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,537 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,537 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:30:56,553 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:30:56,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:30:56,569 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:30:56,569 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:30:56,569 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:30:56,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:30:56,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:30:56,570 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:30:56,570 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:30:56,584 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 18:30:56,586 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:30:56,632 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:30:56,633 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:30:56,639 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:30:56,642 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:30:56,661 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:30:56,661 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:30:56,662 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:30:56,665 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:30:56,668 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:30:58,086 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-12-27 18:30:58,256 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-27 18:30:58,257 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 18:30:58,261 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 18:30:58,276 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 18:30:58,280 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 18:30:58,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:30:58,288 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:58,289 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:58,289 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:58,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:58,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-27 18:30:58,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:58,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215265625] [2019-12-27 18:30:58,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:58,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215265625] [2019-12-27 18:30:58,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:58,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:30:58,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [823518979] [2019-12-27 18:30:58,665 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:58,673 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:58,689 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:30:58,690 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:58,694 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:58,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:30:58,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:58,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:30:58,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:30:58,713 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 18:30:58,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:58,739 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 18:30:58,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:30:58,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:30:58,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:58,751 INFO L225 Difference]: With dead ends: 52 [2019-12-27 18:30:58,752 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:30:58,756 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:30:58,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:30:58,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:30:58,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:30:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 18:30:58,793 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 18:30:58,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:58,794 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 18:30:58,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:30:58,795 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 18:30:58,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:30:58,795 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:58,796 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:58,796 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:58,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:58,796 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-27 18:30:58,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:58,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474738731] [2019-12-27 18:30:58,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:58,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474738731] [2019-12-27 18:30:58,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:58,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:30:58,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [398707110] [2019-12-27 18:30:58,851 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:58,853 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:58,858 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:30:58,859 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:58,898 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:30:58,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:30:58,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:58,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:30:58,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:30:58,905 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 4 states. [2019-12-27 18:30:58,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:58,930 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-27 18:30:58,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:30:58,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:30:58,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:58,931 INFO L225 Difference]: With dead ends: 42 [2019-12-27 18:30:58,931 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:30:58,932 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:30:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:30:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 18:30:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:30:58,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-27 18:30:58,937 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-27 18:30:58,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:58,938 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-27 18:30:58,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:30:58,938 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-27 18:30:58,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:30:58,939 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:58,939 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:58,939 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:58,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:58,939 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-27 18:30:58,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:58,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12028392] [2019-12-27 18:30:58,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:59,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:59,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12028392] [2019-12-27 18:30:59,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:59,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:30:59,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1556427943] [2019-12-27 18:30:59,018 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:59,019 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:59,021 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:30:59,021 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:59,021 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:59,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:30:59,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:59,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:30:59,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:30:59,022 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-27 18:30:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:59,028 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-27 18:30:59,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:30:59,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:30:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:59,029 INFO L225 Difference]: With dead ends: 32 [2019-12-27 18:30:59,029 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 18:30:59,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:30:59,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 18:30:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 18:30:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 18:30:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-27 18:30:59,035 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-27 18:30:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:59,035 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-27 18:30:59,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:30:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-27 18:30:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:30:59,036 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:59,037 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:59,037 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:59,037 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-27 18:30:59,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:59,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476882215] [2019-12-27 18:30:59,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:59,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476882215] [2019-12-27 18:30:59,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:59,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:30:59,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [482631641] [2019-12-27 18:30:59,117 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:59,118 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:59,119 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 18:30:59,120 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:59,120 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:59,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:30:59,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:59,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:30:59,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:30:59,121 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-27 18:30:59,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:59,156 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-27 18:30:59,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:30:59,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:30:59,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:59,158 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:30:59,158 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 18:30:59,158 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:30:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 18:30:59,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 18:30:59,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:30:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-27 18:30:59,166 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-27 18:30:59,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:59,167 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-27 18:30:59,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:30:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-27 18:30:59,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:30:59,168 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:59,168 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:59,168 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:59,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:59,168 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-27 18:30:59,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:59,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819042459] [2019-12-27 18:30:59,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:59,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819042459] [2019-12-27 18:30:59,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:59,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:30:59,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [835651442] [2019-12-27 18:30:59,367 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:59,369 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:59,371 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 18:30:59,371 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:59,372 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:30:59,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:30:59,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:59,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:30:59,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:30:59,374 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-27 18:30:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:59,419 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-27 18:30:59,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:30:59,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 18:30:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:59,420 INFO L225 Difference]: With dead ends: 31 [2019-12-27 18:30:59,420 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 18:30:59,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:30:59,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 18:30:59,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 18:30:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 18:30:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 18:30:59,429 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-27 18:30:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:59,429 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 18:30:59,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:30:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 18:30:59,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:30:59,430 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:59,430 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:59,431 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:59,431 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-27 18:30:59,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:59,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136066462] [2019-12-27 18:30:59,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:59,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:59,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136066462] [2019-12-27 18:30:59,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:59,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:30:59,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [53497745] [2019-12-27 18:30:59,502 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:59,503 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:59,505 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:30:59,506 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:59,528 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:30:59,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 18:30:59,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:59,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 18:30:59,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:30:59,529 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 7 states. [2019-12-27 18:30:59,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:59,602 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-27 18:30:59,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 18:30:59,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-27 18:30:59,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:59,604 INFO L225 Difference]: With dead ends: 25 [2019-12-27 18:30:59,605 INFO L226 Difference]: Without dead ends: 18 [2019-12-27 18:30:59,605 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-27 18:30:59,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-27 18:30:59,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-27 18:30:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 18:30:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-27 18:30:59,608 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-27 18:30:59,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:59,608 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-27 18:30:59,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 18:30:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-27 18:30:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:30:59,609 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:30:59,609 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:30:59,609 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:30:59,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:30:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-27 18:30:59,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:30:59,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560008848] [2019-12-27 18:30:59,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:30:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:30:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:30:59,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560008848] [2019-12-27 18:30:59,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:30:59,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:30:59,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1424640475] [2019-12-27 18:30:59,643 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:30:59,644 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:30:59,647 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 18:30:59,647 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:30:59,695 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:30:59,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:30:59,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:30:59,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:30:59,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:30:59,697 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2019-12-27 18:30:59,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:30:59,719 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-27 18:30:59,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:30:59,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:30:59,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:30:59,719 INFO L225 Difference]: With dead ends: 17 [2019-12-27 18:30:59,719 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:30:59,721 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:30:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:30:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:30:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:30:59,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:30:59,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:30:59,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:30:59,723 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:30:59,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:30:59,723 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:30:59,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:30:59,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:30:59 BasicIcfg [2019-12-27 18:30:59,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:30:59,730 INFO L168 Benchmark]: Toolchain (without parser) took 4475.37 ms. Allocated memory was 138.9 MB in the beginning and 246.9 MB in the end (delta: 108.0 MB). Free memory was 102.4 MB in the beginning and 208.9 MB in the end (delta: -106.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:59,731 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 18:30:59,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.03 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 159.8 MB in the end (delta: -57.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:59,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:59,733 INFO L168 Benchmark]: Boogie Preprocessor took 24.22 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:59,734 INFO L168 Benchmark]: RCFGBuilder took 448.08 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:30:59,735 INFO L168 Benchmark]: TraceAbstraction took 3268.64 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 135.4 MB in the beginning and 208.9 MB in the end (delta: -73.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 18:30:59,739 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.03 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 159.8 MB in the end (delta: -57.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.05 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.22 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.08 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3268.64 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 135.4 MB in the beginning and 208.9 MB in the end (delta: -73.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 TotalNumberOfCompositions - 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: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 75 SDslu, 57 SDs, 0 SdLazy, 53 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...