/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-ext/14_spin2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 15:17:04,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 15:17:04,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 15:17:04,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 15:17:04,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 15:17:04,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 15:17:04,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 15:17:04,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 15:17:04,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 15:17:04,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 15:17:04,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 15:17:04,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 15:17:04,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 15:17:04,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 15:17:04,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 15:17:04,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 15:17:04,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 15:17:04,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 15:17:04,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 15:17:04,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 15:17:04,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 15:17:04,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 15:17:04,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 15:17:04,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 15:17:04,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 15:17:04,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 15:17:04,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 15:17:04,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 15:17:04,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 15:17:04,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 15:17:04,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 15:17:04,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 15:17:04,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 15:17:04,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 15:17:04,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 15:17:04,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 15:17:04,982 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 15:17:05,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 15:17:05,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 15:17:05,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 15:17:05,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 15:17:05,013 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 15:17:05,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 15:17:05,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 15:17:05,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 15:17:05,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 15:17:05,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 15:17:05,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 15:17:05,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 15:17:05,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 15:17:05,015 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 15:17:05,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 15:17:05,015 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 15:17:05,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 15:17:05,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 15:17:05,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 15:17:05,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 15:17:05,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 15:17:05,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 15:17:05,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 15:17:05,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 15:17:05,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 15:17:05,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 15:17:05,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 15:17:05,019 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 15:17:05,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 15:17:05,019 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 15:17:05,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 15:17:05,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 15:17:05,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 15:17:05,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 15:17:05,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 15:17:05,322 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 15:17:05,323 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i [2019-12-27 15:17:05,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d969618/fb45afccf279488ba5d8afd5a6d02051/FLAG25c7f10f3 [2019-12-27 15:17:05,944 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 15:17:05,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/14_spin2003.i [2019-12-27 15:17:05,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d969618/fb45afccf279488ba5d8afd5a6d02051/FLAG25c7f10f3 [2019-12-27 15:17:06,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4d969618/fb45afccf279488ba5d8afd5a6d02051 [2019-12-27 15:17:06,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 15:17:06,252 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 15:17:06,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 15:17:06,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 15:17:06,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 15:17:06,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4824165c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06, skipping insertion in model container [2019-12-27 15:17:06,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 15:17:06,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 15:17:06,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:17:06,753 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 15:17:06,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:17:06,876 INFO L208 MainTranslator]: Completed translation [2019-12-27 15:17:06,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06 WrapperNode [2019-12-27 15:17:06,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 15:17:06,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 15:17:06,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 15:17:06,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 15:17:06,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 15:17:06,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 15:17:06,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 15:17:06,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 15:17:06,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (1/1) ... [2019-12-27 15:17:06,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 15:17:06,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 15:17:06,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 15:17:06,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 15:17:06,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (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 15:17:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 15:17:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 15:17:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 15:17:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 15:17:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 15:17:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 15:17:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 15:17:07,023 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 15:17:07,143 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 15:17:07,148 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 15:17:07,301 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 15:17:07,301 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-27 15:17:07,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:17:07 BoogieIcfgContainer [2019-12-27 15:17:07,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 15:17:07,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 15:17:07,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 15:17:07,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 15:17:07,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:17:06" (1/3) ... [2019-12-27 15:17:07,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789f57a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:17:07, skipping insertion in model container [2019-12-27 15:17:07,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:17:06" (2/3) ... [2019-12-27 15:17:07,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789f57a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:17:07, skipping insertion in model container [2019-12-27 15:17:07,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:17:07" (3/3) ... [2019-12-27 15:17:07,324 INFO L109 eAbstractionObserver]: Analyzing ICFG 14_spin2003.i [2019-12-27 15:17:07,334 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 15:17:07,334 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 15:17:07,340 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 15:17:07,341 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 15:17:07,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,369 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,370 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,370 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,375 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,375 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,375 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:07,392 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 15:17:07,409 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:17:07,409 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:17:07,409 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:17:07,409 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:17:07,409 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:17:07,409 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:17:07,410 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:17:07,410 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:17:07,421 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 29 transitions [2019-12-27 15:17:07,423 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 29 transitions [2019-12-27 15:17:07,454 INFO L132 PetriNetUnfolder]: 3/37 cut-off events. [2019-12-27 15:17:07,455 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 15:17:07,461 INFO L76 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 37 events. 3/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 0/31 useless extension candidates. Maximal degree in co-relation 19. Up to 4 conditions per place. [2019-12-27 15:17:07,464 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 29 transitions [2019-12-27 15:17:07,478 INFO L132 PetriNetUnfolder]: 3/37 cut-off events. [2019-12-27 15:17:07,478 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 15:17:07,479 INFO L76 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 37 events. 3/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs. 0/31 useless extension candidates. Maximal degree in co-relation 19. Up to 4 conditions per place. [2019-12-27 15:17:07,482 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 200 [2019-12-27 15:17:07,485 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:17:08,064 INFO L206 etLargeBlockEncoding]: Checked pairs total: 144 [2019-12-27 15:17:08,064 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 15:17:08,068 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 15:17:08,075 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 15:17:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 15:17:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 15:17:08,082 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:08,083 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 15:17:08,083 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:17:08,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:08,090 INFO L82 PathProgramCache]: Analyzing trace with hash 4226274, now seen corresponding path program 1 times [2019-12-27 15:17:08,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:08,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103322934] [2019-12-27 15:17:08,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:17:08,254 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 15:17:08,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103322934] [2019-12-27 15:17:08,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:17:08,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 15:17:08,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1752609319] [2019-12-27 15:17:08,258 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:17:08,263 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:17:08,279 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 5 states and 4 transitions. [2019-12-27 15:17:08,280 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:17:08,284 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:17:08,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 15:17:08,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:17:08,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 15:17:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 15:17:08,307 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-27 15:17:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:17:08,311 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-27 15:17:08,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 15:17:08,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-27 15:17:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:17:08,323 INFO L225 Difference]: With dead ends: 11 [2019-12-27 15:17:08,323 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 15:17:08,325 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 15:17:08,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 15:17:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 15:17:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 15:17:08,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-27 15:17:08,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-27 15:17:08,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:17:08,361 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-27 15:17:08,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 15:17:08,361 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-27 15:17:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 15:17:08,362 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:08,362 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 15:17:08,362 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:17:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:08,363 INFO L82 PathProgramCache]: Analyzing trace with hash -233566167, now seen corresponding path program 1 times [2019-12-27 15:17:08,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:08,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472727319] [2019-12-27 15:17:08,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:08,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:17:08,422 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:17:08,425 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:17:08,425 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 15:17:08,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,433 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,433 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,438 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,438 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,438 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,438 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:08,441 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 15:17:08,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:17:08,442 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:17:08,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:17:08,442 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:17:08,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:17:08,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:17:08,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:17:08,443 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:17:08,445 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 40 transitions [2019-12-27 15:17:08,445 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions [2019-12-27 15:17:08,462 INFO L132 PetriNetUnfolder]: 5/57 cut-off events. [2019-12-27 15:17:08,463 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 15:17:08,465 INFO L76 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 5/57 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 38. Up to 6 conditions per place. [2019-12-27 15:17:08,470 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions [2019-12-27 15:17:08,496 INFO L132 PetriNetUnfolder]: 5/57 cut-off events. [2019-12-27 15:17:08,496 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 15:17:08,498 INFO L76 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 5/57 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 38. Up to 6 conditions per place. [2019-12-27 15:17:08,501 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 620 [2019-12-27 15:17:08,502 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:17:09,037 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2048 [2019-12-27 15:17:09,038 INFO L214 etLargeBlockEncoding]: Total number of compositions: 24 [2019-12-27 15:17:09,040 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-27 15:17:09,068 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 316 states. [2019-12-27 15:17:09,068 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2019-12-27 15:17:09,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 15:17:09,070 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:09,070 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:17:09,071 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:17:09,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:09,071 INFO L82 PathProgramCache]: Analyzing trace with hash 183210113, now seen corresponding path program 1 times [2019-12-27 15:17:09,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:09,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055091433] [2019-12-27 15:17:09,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:17:09,149 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 15:17:09,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055091433] [2019-12-27 15:17:09,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:17:09,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 15:17:09,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [738438052] [2019-12-27 15:17:09,151 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:17:09,152 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:17:09,154 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 15:17:09,155 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:17:09,156 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:17:09,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:17:09,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:17:09,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:17:09,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:17:09,157 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2019-12-27 15:17:09,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:17:09,208 INFO L93 Difference]: Finished difference Result 256 states and 584 transitions. [2019-12-27 15:17:09,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:17:09,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 15:17:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:17:09,223 INFO L225 Difference]: With dead ends: 256 [2019-12-27 15:17:09,223 INFO L226 Difference]: Without dead ends: 256 [2019-12-27 15:17:09,223 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:17:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-12-27 15:17:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2019-12-27 15:17:09,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-27 15:17:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 537 transitions. [2019-12-27 15:17:09,286 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 537 transitions. Word has length 7 [2019-12-27 15:17:09,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:17:09,287 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 537 transitions. [2019-12-27 15:17:09,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:17:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 537 transitions. [2019-12-27 15:17:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 15:17:09,288 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:09,288 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-27 15:17:09,289 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:17:09,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:09,289 INFO L82 PathProgramCache]: Analyzing trace with hash -836567895, now seen corresponding path program 1 times [2019-12-27 15:17:09,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:09,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928427809] [2019-12-27 15:17:09,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:09,356 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:17:09,356 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:17:09,359 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:17:09,359 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 15:17:09,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,369 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,369 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,369 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,369 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,370 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,370 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,370 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,371 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,371 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,371 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,372 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,372 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,372 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,372 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,373 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,374 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,374 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,374 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,374 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,376 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,377 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,377 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,381 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,381 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,381 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:09,383 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 15:17:09,383 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:17:09,383 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:17:09,384 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:17:09,384 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:17:09,384 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:17:09,384 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:17:09,384 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:17:09,384 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:17:09,386 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 51 transitions [2019-12-27 15:17:09,387 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions [2019-12-27 15:17:09,403 INFO L132 PetriNetUnfolder]: 7/77 cut-off events. [2019-12-27 15:17:09,404 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 15:17:09,406 INFO L76 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 77 events. 7/77 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 187 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2019-12-27 15:17:09,409 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions [2019-12-27 15:17:09,425 INFO L132 PetriNetUnfolder]: 7/77 cut-off events. [2019-12-27 15:17:09,425 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 15:17:09,427 INFO L76 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 77 events. 7/77 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 187 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2019-12-27 15:17:09,430 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2019-12-27 15:17:09,430 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:17:10,320 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4852 [2019-12-27 15:17:10,321 INFO L214 etLargeBlockEncoding]: Total number of compositions: 31 [2019-12-27 15:17:10,321 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 30 transitions [2019-12-27 15:17:10,448 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2500 states. [2019-12-27 15:17:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states. [2019-12-27 15:17:10,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 15:17:10,450 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:10,450 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:17:10,450 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:17:10,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:10,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1692748366, now seen corresponding path program 1 times [2019-12-27 15:17:10,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:10,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428975978] [2019-12-27 15:17:10,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:17:10,492 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 15:17:10,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428975978] [2019-12-27 15:17:10,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:17:10,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 15:17:10,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [831453241] [2019-12-27 15:17:10,494 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:17:10,494 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:17:10,495 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 15:17:10,495 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:17:10,495 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:17:10,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:17:10,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:17:10,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:17:10,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:17:10,496 INFO L87 Difference]: Start difference. First operand 2500 states. Second operand 3 states. [2019-12-27 15:17:10,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:17:10,578 INFO L93 Difference]: Finished difference Result 2382 states and 7294 transitions. [2019-12-27 15:17:10,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:17:10,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 15:17:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:17:10,602 INFO L225 Difference]: With dead ends: 2382 [2019-12-27 15:17:10,603 INFO L226 Difference]: Without dead ends: 2382 [2019-12-27 15:17:10,603 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:17:10,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2019-12-27 15:17:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2059. [2019-12-27 15:17:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2019-12-27 15:17:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 6312 transitions. [2019-12-27 15:17:10,725 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 6312 transitions. Word has length 7 [2019-12-27 15:17:10,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:17:10,725 INFO L462 AbstractCegarLoop]: Abstraction has 2059 states and 6312 transitions. [2019-12-27 15:17:10,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:17:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 6312 transitions. [2019-12-27 15:17:10,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 15:17:10,729 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:10,729 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:17:10,730 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:17:10,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:10,730 INFO L82 PathProgramCache]: Analyzing trace with hash -269786627, now seen corresponding path program 1 times [2019-12-27 15:17:10,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:10,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691658965] [2019-12-27 15:17:10,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:17:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:17:10,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691658965] [2019-12-27 15:17:10,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:17:10,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:17:10,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [689046068] [2019-12-27 15:17:10,824 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:17:10,826 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:17:10,828 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 36 transitions. [2019-12-27 15:17:10,830 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:17:10,834 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 15:17:10,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:17:10,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:17:10,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:17:10,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:17:10,836 INFO L87 Difference]: Start difference. First operand 2059 states and 6312 transitions. Second operand 3 states. [2019-12-27 15:17:10,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:17:10,860 INFO L93 Difference]: Finished difference Result 510 states and 1147 transitions. [2019-12-27 15:17:10,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:17:10,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 15:17:10,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:17:10,865 INFO L225 Difference]: With dead ends: 510 [2019-12-27 15:17:10,865 INFO L226 Difference]: Without dead ends: 510 [2019-12-27 15:17:10,867 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 15:17:10,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2019-12-27 15:17:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2019-12-27 15:17:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-12-27 15:17:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 1147 transitions. [2019-12-27 15:17:10,882 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 1147 transitions. Word has length 12 [2019-12-27 15:17:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:17:10,882 INFO L462 AbstractCegarLoop]: Abstraction has 510 states and 1147 transitions. [2019-12-27 15:17:10,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:17:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 1147 transitions. [2019-12-27 15:17:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 15:17:10,889 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:10,889 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-27 15:17:10,889 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:17:10,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:10,890 INFO L82 PathProgramCache]: Analyzing trace with hash 988221295, now seen corresponding path program 1 times [2019-12-27 15:17:10,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:10,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204546054] [2019-12-27 15:17:10,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:10,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:17:10,945 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:17:10,946 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:17:10,946 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 15:17:10,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,955 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,956 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,958 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,958 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,958 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,958 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,961 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,968 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,968 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,968 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,968 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,968 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,969 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,971 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,971 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,971 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,972 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,973 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,973 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,973 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,973 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,975 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,975 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,975 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,975 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:10,977 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 15:17:10,977 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:17:10,977 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:17:10,977 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:17:10,978 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:17:10,978 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:17:10,978 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:17:10,978 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:17:10,978 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:17:10,979 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 62 transitions [2019-12-27 15:17:10,980 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions [2019-12-27 15:17:11,012 INFO L132 PetriNetUnfolder]: 9/97 cut-off events. [2019-12-27 15:17:11,013 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 15:17:11,016 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 97 events. 9/97 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs. 0/79 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2019-12-27 15:17:11,023 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions [2019-12-27 15:17:11,049 INFO L132 PetriNetUnfolder]: 9/97 cut-off events. [2019-12-27 15:17:11,049 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 15:17:11,052 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 97 events. 9/97 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs. 0/79 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2019-12-27 15:17:11,056 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2120 [2019-12-27 15:17:11,057 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:17:11,948 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8985 [2019-12-27 15:17:11,948 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2019-12-27 15:17:11,948 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions [2019-12-27 15:17:13,758 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19968 states. [2019-12-27 15:17:13,758 INFO L276 IsEmpty]: Start isEmpty. Operand 19968 states. [2019-12-27 15:17:13,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 15:17:13,758 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:13,758 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:17:13,759 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:17:13,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:13,759 INFO L82 PathProgramCache]: Analyzing trace with hash 339964421, now seen corresponding path program 1 times [2019-12-27 15:17:13,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:13,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935933823] [2019-12-27 15:17:13,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:17:13,779 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 15:17:13,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935933823] [2019-12-27 15:17:13,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:17:13,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 15:17:13,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [664944936] [2019-12-27 15:17:13,780 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:17:13,780 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:17:13,783 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 15:17:13,783 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:17:13,783 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:17:13,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:17:13,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:17:13,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:17:13,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:17:13,784 INFO L87 Difference]: Start difference. First operand 19968 states. Second operand 3 states. [2019-12-27 15:17:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:17:14,350 INFO L93 Difference]: Finished difference Result 21313 states and 82179 transitions. [2019-12-27 15:17:14,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:17:14,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 15:17:14,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:17:14,504 INFO L225 Difference]: With dead ends: 21313 [2019-12-27 15:17:14,504 INFO L226 Difference]: Without dead ends: 21313 [2019-12-27 15:17:14,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:17:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21313 states. [2019-12-27 15:17:15,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21313 to 17855. [2019-12-27 15:17:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17855 states. [2019-12-27 15:17:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17855 states to 17855 states and 69278 transitions. [2019-12-27 15:17:16,040 INFO L78 Accepts]: Start accepts. Automaton has 17855 states and 69278 transitions. Word has length 7 [2019-12-27 15:17:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:17:16,040 INFO L462 AbstractCegarLoop]: Abstraction has 17855 states and 69278 transitions. [2019-12-27 15:17:16,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:17:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 17855 states and 69278 transitions. [2019-12-27 15:17:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 15:17:16,041 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:16,042 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:17:16,042 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:17:16,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:16,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1208148184, now seen corresponding path program 1 times [2019-12-27 15:17:16,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:16,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428081496] [2019-12-27 15:17:16,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:17:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:17:16,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428081496] [2019-12-27 15:17:16,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:17:16,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:17:16,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2056587664] [2019-12-27 15:17:16,081 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:17:16,082 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:17:16,083 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 18 transitions. [2019-12-27 15:17:16,083 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:17:16,084 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 15:17:16,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:17:16,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:17:16,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:17:16,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:17:16,085 INFO L87 Difference]: Start difference. First operand 17855 states and 69278 transitions. Second operand 3 states. [2019-12-27 15:17:16,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:17:16,118 INFO L93 Difference]: Finished difference Result 1917 states and 4962 transitions. [2019-12-27 15:17:16,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:17:16,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 15:17:16,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:17:16,125 INFO L225 Difference]: With dead ends: 1917 [2019-12-27 15:17:16,125 INFO L226 Difference]: Without dead ends: 1917 [2019-12-27 15:17:16,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 15:17:16,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2019-12-27 15:17:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2019-12-27 15:17:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1917 states. [2019-12-27 15:17:16,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 4962 transitions. [2019-12-27 15:17:16,172 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 4962 transitions. Word has length 12 [2019-12-27 15:17:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:17:16,173 INFO L462 AbstractCegarLoop]: Abstraction has 1917 states and 4962 transitions. [2019-12-27 15:17:16,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:17:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 4962 transitions. [2019-12-27 15:17:16,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:17:16,174 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:17:16,174 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 15:17:16,174 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:17:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:17:16,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1061051232, now seen corresponding path program 1 times [2019-12-27 15:17:16,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:17:16,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178975839] [2019-12-27 15:17:16,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:17:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:17:16,217 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:17:16,221 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:17:16,222 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:17:16,222 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 15:17:16,229 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,229 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,229 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,229 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,230 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,230 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,231 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,231 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,232 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,232 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,232 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,232 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,233 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,233 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,234 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,234 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,234 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,236 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,237 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,237 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,240 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,240 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,241 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,241 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,242 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,243 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,243 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,243 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,244 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,245 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,245 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,245 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,246 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,246 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,246 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,247 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:17:16,248 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 15:17:16,248 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:17:16,248 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:17:16,248 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:17:16,248 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:17:16,248 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:17:16,248 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:17:16,248 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:17:16,249 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:17:16,250 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 73 transitions [2019-12-27 15:17:16,250 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions [2019-12-27 15:17:16,439 INFO L132 PetriNetUnfolder]: 11/117 cut-off events. [2019-12-27 15:17:16,439 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 15:17:16,441 INFO L76 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 117 events. 11/117 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 294 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2019-12-27 15:17:16,447 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions [2019-12-27 15:17:16,462 INFO L132 PetriNetUnfolder]: 11/117 cut-off events. [2019-12-27 15:17:16,462 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 15:17:16,465 INFO L76 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 117 events. 11/117 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 294 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2019-12-27 15:17:16,470 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3200 [2019-12-27 15:17:16,471 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:17:17,776 INFO L206 etLargeBlockEncoding]: Checked pairs total: 13863 [2019-12-27 15:17:17,776 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 15:17:17,777 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 46 transitions [2019-12-27 15:18:14,591 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 139808 states. [2019-12-27 15:18:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 139808 states. [2019-12-27 15:18:14,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 15:18:14,592 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:18:14,592 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:18:14,592 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:18:14,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:18:14,593 INFO L82 PathProgramCache]: Analyzing trace with hash 97123028, now seen corresponding path program 1 times [2019-12-27 15:18:14,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:18:14,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089750302] [2019-12-27 15:18:14,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:18:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:18:14,610 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 15:18:14,611 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089750302] [2019-12-27 15:18:14,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:18:14,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 15:18:14,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1475368659] [2019-12-27 15:18:14,612 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:18:14,612 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:18:14,613 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 15:18:14,613 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:18:14,613 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:18:14,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:18:14,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:18:14,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:18:14,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:18:14,614 INFO L87 Difference]: Start difference. First operand 139808 states. Second operand 3 states. [2019-12-27 15:18:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:18:18,937 INFO L93 Difference]: Finished difference Result 161771 states and 749265 transitions. [2019-12-27 15:18:18,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:18:18,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 15:18:18,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:18:19,798 INFO L225 Difference]: With dead ends: 161771 [2019-12-27 15:18:19,798 INFO L226 Difference]: Without dead ends: 161771 [2019-12-27 15:18:19,799 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:18:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161771 states. [2019-12-27 15:18:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161771 to 134826. [2019-12-27 15:18:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134826 states. [2019-12-27 15:18:29,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134826 states to 134826 states and 631449 transitions. [2019-12-27 15:18:29,316 INFO L78 Accepts]: Start accepts. Automaton has 134826 states and 631449 transitions. Word has length 7 [2019-12-27 15:18:29,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:18:29,316 INFO L462 AbstractCegarLoop]: Abstraction has 134826 states and 631449 transitions. [2019-12-27 15:18:29,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:18:29,316 INFO L276 IsEmpty]: Start isEmpty. Operand 134826 states and 631449 transitions. [2019-12-27 15:18:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 15:18:29,317 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:18:29,317 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:18:29,317 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:18:29,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:18:29,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1217805150, now seen corresponding path program 1 times [2019-12-27 15:18:29,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:18:29,317 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250479157] [2019-12-27 15:18:29,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:18:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:18:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:18:29,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250479157] [2019-12-27 15:18:29,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:18:29,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:18:29,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [390786515] [2019-12-27 15:18:29,339 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:18:29,339 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:18:29,341 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 36 transitions. [2019-12-27 15:18:29,341 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:18:29,342 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 15:18:29,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:18:29,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:18:29,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:18:29,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:18:29,343 INFO L87 Difference]: Start difference. First operand 134826 states and 631449 transitions. Second operand 3 states. [2019-12-27 15:18:29,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:18:29,386 INFO L93 Difference]: Finished difference Result 5043 states and 13467 transitions. [2019-12-27 15:18:29,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:18:29,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-27 15:18:29,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:18:29,398 INFO L225 Difference]: With dead ends: 5043 [2019-12-27 15:18:29,398 INFO L226 Difference]: Without dead ends: 5043 [2019-12-27 15:18:29,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 15:18:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2019-12-27 15:18:29,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 5043. [2019-12-27 15:18:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2019-12-27 15:18:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 13467 transitions. [2019-12-27 15:18:29,484 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 13467 transitions. Word has length 12 [2019-12-27 15:18:29,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:18:29,484 INFO L462 AbstractCegarLoop]: Abstraction has 5043 states and 13467 transitions. [2019-12-27 15:18:29,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:18:29,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 13467 transitions. [2019-12-27 15:18:29,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 15:18:29,486 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:18:29,486 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:18:29,486 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:18:29,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:18:29,486 INFO L82 PathProgramCache]: Analyzing trace with hash 2013146733, now seen corresponding path program 1 times [2019-12-27 15:18:29,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:18:29,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007999649] [2019-12-27 15:18:29,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:18:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:18:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:18:29,514 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:18:29,515 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:18:29,515 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:18:29,515 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-27 15:18:29,525 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,525 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,525 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,525 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,526 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,526 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,527 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,527 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,527 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,527 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,527 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,527 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,528 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,528 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,529 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,529 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,529 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,529 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,529 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,529 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,530 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,530 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,530 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,530 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,530 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,530 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,532 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,532 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,532 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,532 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,532 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,534 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,535 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,535 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,535 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,536 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,536 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,539 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,540 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,540 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,540 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,540 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:18:29,541 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 15:18:29,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:18:29,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:18:29,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:18:29,541 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:18:29,541 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:18:29,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:18:29,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:18:29,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:18:29,543 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 84 transitions [2019-12-27 15:18:29,543 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions [2019-12-27 15:18:29,560 INFO L132 PetriNetUnfolder]: 13/137 cut-off events. [2019-12-27 15:18:29,560 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 15:18:29,562 INFO L76 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 137 events. 13/137 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 347 event pairs. 0/111 useless extension candidates. Maximal degree in co-relation 141. Up to 14 conditions per place. [2019-12-27 15:18:29,570 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions [2019-12-27 15:18:29,589 INFO L132 PetriNetUnfolder]: 13/137 cut-off events. [2019-12-27 15:18:29,590 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 15:18:29,592 INFO L76 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 137 events. 13/137 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 347 event pairs. 0/111 useless extension candidates. Maximal degree in co-relation 141. Up to 14 conditions per place. [2019-12-27 15:18:29,601 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4500 [2019-12-27 15:18:29,601 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:18:32,032 INFO L206 etLargeBlockEncoding]: Checked pairs total: 19365 [2019-12-27 15:18:32,032 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 15:18:32,033 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 53 transitions Received shutdown request... [2019-12-27 15:21:28,086 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 15:21:28,089 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 15:21:28,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:21:28 BasicIcfg [2019-12-27 15:21:28,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 15:21:28,094 INFO L168 Benchmark]: Toolchain (without parser) took 261838.95 ms. Allocated memory was 138.4 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 101.7 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2019-12-27 15:21:28,095 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 15:21:28,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.12 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 163.1 MB in the end (delta: -61.8 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-27 15:21:28,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.14 ms. Allocated memory is still 203.4 MB. Free memory was 163.1 MB in the beginning and 161.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 15:21:28,103 INFO L168 Benchmark]: Boogie Preprocessor took 26.22 ms. Allocated memory is still 203.4 MB. Free memory was 161.2 MB in the beginning and 159.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 15:21:28,104 INFO L168 Benchmark]: RCFGBuilder took 351.37 ms. Allocated memory is still 203.4 MB. Free memory was 159.3 MB in the beginning and 144.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-12-27 15:21:28,106 INFO L168 Benchmark]: TraceAbstraction took 260784.56 ms. Allocated memory was 203.4 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 143.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2019-12-27 15:21:28,118 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 138.4 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 623.12 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.3 MB in the beginning and 163.1 MB in the end (delta: -61.8 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.14 ms. Allocated memory is still 203.4 MB. Free memory was 163.1 MB in the beginning and 161.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.22 ms. Allocated memory is still 203.4 MB. Free memory was 161.2 MB in the beginning and 159.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 351.37 ms. Allocated memory is still 203.4 MB. Free memory was 159.3 MB in the beginning and 144.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260784.56 ms. Allocated memory was 203.4 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 143.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 30 ProgramPointsBefore, 9 ProgramPointsAfterwards, 29 TransitionsBefore, 8 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 94 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 144 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 42 ProgramPointsBefore, 22 ProgramPointsAfterwards, 40 TransitionsBefore, 21 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 288 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 24 SemBasedMoverChecksPositive, 19 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 2048 CheckedPairsTotal, 24 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 54 ProgramPointsBefore, 31 ProgramPointsAfterwards, 51 TransitionsBefore, 30 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 627 VarBasedMoverChecksPositive, 119 VarBasedMoverChecksNegative, 131 SemBasedMoverChecksPositive, 37 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 4852 CheckedPairsTotal, 31 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 66 ProgramPointsBefore, 40 ProgramPointsAfterwards, 62 TransitionsBefore, 39 TransitionsAfterwards, 2120 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 924 VarBasedMoverChecksPositive, 265 VarBasedMoverChecksNegative, 319 SemBasedMoverChecksPositive, 59 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 8985 CheckedPairsTotal, 38 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 78 ProgramPointsBefore, 48 ProgramPointsAfterwards, 73 TransitionsBefore, 46 TransitionsAfterwards, 3200 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 1318 VarBasedMoverChecksPositive, 327 VarBasedMoverChecksNegative, 440 SemBasedMoverChecksPositive, 58 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 13863 CheckedPairsTotal, 42 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 90 ProgramPointsBefore, 56 ProgramPointsAfterwards, 84 TransitionsBefore, 53 TransitionsAfterwards, 4500 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1947 VarBasedMoverChecksPositive, 411 VarBasedMoverChecksNegative, 478 SemBasedMoverChecksPositive, 93 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 2.0s, 0 MoverChecksTotal, 19365 CheckedPairsTotal, 46 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 689]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 689). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 56 places, 53 transitions. Already constructed 299701 states. Currently 72833 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Result: TIMEOUT, OverallTime: 178.5s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown