/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:43:35,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:43:35,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:43:35,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:43:35,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:43:35,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:43:35,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:43:35,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:43:35,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:43:35,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:43:35,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:43:35,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:43:35,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:43:35,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:43:35,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:43:35,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:43:35,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:43:35,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:43:35,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:43:35,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:43:35,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:43:35,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:43:35,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:43:35,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:43:35,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 19:43:35,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:43:35,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:43:35,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:43:35,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:43:35,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:43:35,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:43:35,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:43:35,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:43:35,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:43:35,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:43:35,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:43:35,981 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-VariableLbe.epf [2019-12-18 19:43:35,995 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:43:35,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:43:35,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:43:35,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:43:35,997 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:43:35,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:43:35,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:43:35,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:43:35,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:43:35,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:43:35,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:43:35,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:43:35,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:43:35,999 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:43:35,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:43:35,999 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:43:35,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:43:35,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:43:36,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:43:36,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:43:36,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:43:36,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:43:36,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:43:36,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:43:36,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:43:36,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:43:36,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:43:36,001 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 19:43:36,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:43:36,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:43:36,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:43:36,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:43:36,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:43:36,358 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:43:36,358 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:43:36,359 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i [2019-12-18 19:43:36,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844574e28/cb0a61ce1e614e138420fd93a56eacf6/FLAG89af138e5 [2019-12-18 19:43:37,034 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:43:37,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/14_spin2003.i [2019-12-18 19:43:37,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844574e28/cb0a61ce1e614e138420fd93a56eacf6/FLAG89af138e5 [2019-12-18 19:43:37,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844574e28/cb0a61ce1e614e138420fd93a56eacf6 [2019-12-18 19:43:37,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:43:37,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:43:37,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:43:37,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:43:37,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:43:37,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:43:37" (1/1) ... [2019-12-18 19:43:37,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12cd1409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:37, skipping insertion in model container [2019-12-18 19:43:37,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:43:37" (1/1) ... [2019-12-18 19:43:37,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:43:37,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:43:37,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:43:37,894 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:43:37,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:43:38,015 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:43:38,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38 WrapperNode [2019-12-18 19:43:38,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:43:38,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:43:38,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:43:38,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:43:38,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:43:38,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:43:38,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:43:38,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:43:38,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (1/1) ... [2019-12-18 19:43:38,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:43:38,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:43:38,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:43:38,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:43:38,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (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 [2019-12-18 19:43:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 19:43:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 19:43:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:43:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:43:38,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:43:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:43:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:43:38,166 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:43:38,300 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 19:43:38,314 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 19:43:38,458 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:43:38,458 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-18 19:43:38,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:43:38 BoogieIcfgContainer [2019-12-18 19:43:38,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:43:38,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:43:38,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:43:38,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:43:38,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:43:37" (1/3) ... [2019-12-18 19:43:38,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdcc4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:43:38, skipping insertion in model container [2019-12-18 19:43:38,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:43:38" (2/3) ... [2019-12-18 19:43:38,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdcc4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:43:38, skipping insertion in model container [2019-12-18 19:43:38,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:43:38" (3/3) ... [2019-12-18 19:43:38,469 INFO L109 eAbstractionObserver]: Analyzing ICFG 14_spin2003.i [2019-12-18 19:43:38,479 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:43:38,480 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:43:38,487 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:43:38,488 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:43:38,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,512 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,513 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,513 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,515 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,515 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,519 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,520 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,520 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,520 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:38,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 19:43:38,553 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:43:38,553 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:43:38,553 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:43:38,553 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:43:38,554 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:43:38,554 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:43:38,554 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:43:38,554 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:43:38,565 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 29 transitions [2019-12-18 19:43:38,567 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 29 transitions [2019-12-18 19:43:38,596 INFO L126 PetriNetUnfolder]: 3/37 cut-off events. [2019-12-18 19:43:38,596 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:38,602 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. 5/36 useless extension candidates. Maximal degree in co-relation 19. Up to 4 conditions per place. [2019-12-18 19:43:38,605 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 29 transitions [2019-12-18 19:43:38,618 INFO L126 PetriNetUnfolder]: 3/37 cut-off events. [2019-12-18 19:43:38,619 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:38,620 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. 5/36 useless extension candidates. Maximal degree in co-relation 19. Up to 4 conditions per place. [2019-12-18 19:43:38,621 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 200 [2019-12-18 19:43:38,622 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:43:39,170 INFO L206 etLargeBlockEncoding]: Checked pairs total: 144 [2019-12-18 19:43:39,170 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 19:43:39,175 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-18 19:43:39,183 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-18 19:43:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-18 19:43:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-18 19:43:39,192 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:39,193 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-18 19:43:39,193 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:43:39,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:39,199 INFO L82 PathProgramCache]: Analyzing trace with hash 4226274, now seen corresponding path program 1 times [2019-12-18 19:43:39,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:39,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937224930] [2019-12-18 19:43:39,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:43:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:43:39,341 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937224930] [2019-12-18 19:43:39,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:43:39,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:43:39,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485855735] [2019-12-18 19:43:39,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-18 19:43:39,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:43:39,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-18 19:43:39,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 19:43:39,366 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-18 19:43:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:43:39,380 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-18 19:43:39,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-18 19:43:39,381 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-18 19:43:39,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:43:39,391 INFO L225 Difference]: With dead ends: 11 [2019-12-18 19:43:39,391 INFO L226 Difference]: Without dead ends: 11 [2019-12-18 19:43:39,392 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 [2019-12-18 19:43:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-18 19:43:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-18 19:43:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-18 19:43:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-18 19:43:39,428 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-18 19:43:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:43:39,428 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-18 19:43:39,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-18 19:43:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-18 19:43:39,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-18 19:43:39,429 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:39,429 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-18 19:43:39,430 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:43:39,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:39,430 INFO L82 PathProgramCache]: Analyzing trace with hash -233566167, now seen corresponding path program 1 times [2019-12-18 19:43:39,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:39,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918845897] [2019-12-18 19:43:39,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:39,491 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:43:39,491 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:43:39,493 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:43:39,493 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 19:43:39,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,501 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,501 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,501 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,503 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,503 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,505 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,506 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,506 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,506 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:39,508 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:43:39,508 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:43:39,509 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:43:39,509 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:43:39,509 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:43:39,509 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:43:39,509 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:43:39,509 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:43:39,509 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:43:39,511 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 40 transitions [2019-12-18 19:43:39,512 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions [2019-12-18 19:43:39,529 INFO L126 PetriNetUnfolder]: 5/57 cut-off events. [2019-12-18 19:43:39,529 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:39,534 INFO L76 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 5/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs. 14/61 useless extension candidates. Maximal degree in co-relation 38. Up to 6 conditions per place. [2019-12-18 19:43:39,536 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 42 places, 40 transitions [2019-12-18 19:43:39,552 INFO L126 PetriNetUnfolder]: 5/57 cut-off events. [2019-12-18 19:43:39,552 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:39,553 INFO L76 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 5/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs. 14/61 useless extension candidates. Maximal degree in co-relation 38. Up to 6 conditions per place. [2019-12-18 19:43:39,555 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 620 [2019-12-18 19:43:39,556 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:43:39,927 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1633 [2019-12-18 19:43:39,927 INFO L214 etLargeBlockEncoding]: Total number of compositions: 20 [2019-12-18 19:43:39,927 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 22 transitions [2019-12-18 19:43:39,961 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 355 states. [2019-12-18 19:43:39,962 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states. [2019-12-18 19:43:39,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 19:43:39,963 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:39,963 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:43:39,964 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:43:39,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:39,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1591797249, now seen corresponding path program 1 times [2019-12-18 19:43:39,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:39,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004947469] [2019-12-18 19:43:39,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:43:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:43:40,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004947469] [2019-12-18 19:43:40,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:43:40,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:43:40,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182796241] [2019-12-18 19:43:40,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:43:40,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:43:40,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:43:40,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:43:40,048 INFO L87 Difference]: Start difference. First operand 355 states. Second operand 3 states. [2019-12-18 19:43:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:43:40,094 INFO L93 Difference]: Finished difference Result 272 states and 612 transitions. [2019-12-18 19:43:40,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:43:40,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 19:43:40,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:43:40,103 INFO L225 Difference]: With dead ends: 272 [2019-12-18 19:43:40,104 INFO L226 Difference]: Without dead ends: 272 [2019-12-18 19:43:40,104 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 [2019-12-18 19:43:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-12-18 19:43:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 252. [2019-12-18 19:43:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-12-18 19:43:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 565 transitions. [2019-12-18 19:43:40,144 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 565 transitions. Word has length 7 [2019-12-18 19:43:40,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:43:40,145 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 565 transitions. [2019-12-18 19:43:40,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:43:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 565 transitions. [2019-12-18 19:43:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:43:40,147 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:40,147 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-18 19:43:40,148 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:43:40,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:40,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1516626265, now seen corresponding path program 1 times [2019-12-18 19:43:40,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:40,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435437318] [2019-12-18 19:43:40,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:40,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:43:40,208 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:43:40,208 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:43:40,208 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 19:43:40,223 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,223 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,224 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,225 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,225 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,226 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,226 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,226 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,226 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,227 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,227 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,227 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,228 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,228 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,228 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,229 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,229 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,230 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,230 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,230 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,230 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,232 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,233 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,233 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,233 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,235 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,235 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,236 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:40,239 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 19:43:40,239 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:43:40,239 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:43:40,240 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:43:40,240 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:43:40,240 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:43:40,240 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:43:40,240 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:43:40,240 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:43:40,243 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 51 transitions [2019-12-18 19:43:40,243 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions [2019-12-18 19:43:40,275 INFO L126 PetriNetUnfolder]: 7/77 cut-off events. [2019-12-18 19:43:40,275 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:40,278 INFO L76 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 77 events. 7/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 195 event pairs. 27/90 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2019-12-18 19:43:40,282 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions [2019-12-18 19:43:40,297 INFO L126 PetriNetUnfolder]: 7/77 cut-off events. [2019-12-18 19:43:40,297 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:40,301 INFO L76 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 77 events. 7/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 195 event pairs. 27/90 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2019-12-18 19:43:40,305 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2019-12-18 19:43:40,305 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:43:40,667 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4682 [2019-12-18 19:43:40,667 INFO L214 etLargeBlockEncoding]: Total number of compositions: 23 [2019-12-18 19:43:40,669 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 32 transitions [2019-12-18 19:43:40,835 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3127 states. [2019-12-18 19:43:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states. [2019-12-18 19:43:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 19:43:40,836 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:40,836 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:43:40,836 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:43:40,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:40,837 INFO L82 PathProgramCache]: Analyzing trace with hash 451810027, now seen corresponding path program 1 times [2019-12-18 19:43:40,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:40,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664448129] [2019-12-18 19:43:40,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:43:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:43:40,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664448129] [2019-12-18 19:43:40,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:43:40,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:43:40,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446473208] [2019-12-18 19:43:40,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:43:40,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:43:40,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:43:40,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:43:40,886 INFO L87 Difference]: Start difference. First operand 3127 states. Second operand 3 states. [2019-12-18 19:43:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:43:41,009 INFO L93 Difference]: Finished difference Result 2842 states and 8458 transitions. [2019-12-18 19:43:41,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:43:41,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 19:43:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:43:41,044 INFO L225 Difference]: With dead ends: 2842 [2019-12-18 19:43:41,045 INFO L226 Difference]: Without dead ends: 2842 [2019-12-18 19:43:41,045 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 [2019-12-18 19:43:41,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2019-12-18 19:43:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2479. [2019-12-18 19:43:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2019-12-18 19:43:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 7382 transitions. [2019-12-18 19:43:41,200 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 7382 transitions. Word has length 7 [2019-12-18 19:43:41,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:43:41,200 INFO L462 AbstractCegarLoop]: Abstraction has 2479 states and 7382 transitions. [2019-12-18 19:43:41,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:43:41,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 7382 transitions. [2019-12-18 19:43:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 19:43:41,204 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:41,204 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-18 19:43:41,204 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:43:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:41,205 INFO L82 PathProgramCache]: Analyzing trace with hash 566632274, now seen corresponding path program 1 times [2019-12-18 19:43:41,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:41,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776674918] [2019-12-18 19:43:41,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:41,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:43:41,280 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:43:41,280 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:43:41,281 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 19:43:41,288 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,288 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,288 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,289 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,290 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,290 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,291 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,291 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,291 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,300 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,302 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,304 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,304 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,304 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,306 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,306 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,306 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,306 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,307 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,307 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,307 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,308 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,308 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,308 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,310 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,310 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,310 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,310 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,312 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,312 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,312 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,313 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,314 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,314 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,314 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,315 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:41,316 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 19:43:41,316 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:43:41,316 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:43:41,316 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:43:41,317 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:43:41,317 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:43:41,317 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:43:41,317 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:43:41,317 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:43:41,318 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 62 transitions [2019-12-18 19:43:41,318 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions [2019-12-18 19:43:41,339 INFO L126 PetriNetUnfolder]: 9/97 cut-off events. [2019-12-18 19:43:41,339 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:41,343 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 97 events. 9/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs. 44/123 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2019-12-18 19:43:41,348 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions [2019-12-18 19:43:41,362 INFO L126 PetriNetUnfolder]: 9/97 cut-off events. [2019-12-18 19:43:41,363 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:41,364 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 97 events. 9/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 227 event pairs. 44/123 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2019-12-18 19:43:41,368 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2120 [2019-12-18 19:43:41,369 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:43:41,719 INFO L206 etLargeBlockEncoding]: Checked pairs total: 7962 [2019-12-18 19:43:41,719 INFO L214 etLargeBlockEncoding]: Total number of compositions: 27 [2019-12-18 19:43:41,719 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 39 transitions [2019-12-18 19:43:43,781 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21893 states. [2019-12-18 19:43:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 21893 states. [2019-12-18 19:43:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 19:43:43,781 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:43,782 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:43:43,782 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:43:43,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash 788957760, now seen corresponding path program 1 times [2019-12-18 19:43:43,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:43,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285532677] [2019-12-18 19:43:43,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:43:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:43:43,813 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285532677] [2019-12-18 19:43:43,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:43:43,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:43:43,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731611664] [2019-12-18 19:43:43,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:43:43,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:43:43,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:43:43,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:43:43,815 INFO L87 Difference]: Start difference. First operand 21893 states. Second operand 3 states. [2019-12-18 19:43:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:43:44,133 INFO L93 Difference]: Finished difference Result 22773 states and 85150 transitions. [2019-12-18 19:43:44,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:43:44,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 19:43:44,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:43:44,303 INFO L225 Difference]: With dead ends: 22773 [2019-12-18 19:43:44,304 INFO L226 Difference]: Without dead ends: 22773 [2019-12-18 19:43:44,304 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 [2019-12-18 19:43:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22773 states. [2019-12-18 19:43:45,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22773 to 19259. [2019-12-18 19:43:45,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19259 states. [2019-12-18 19:43:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19259 states to 19259 states and 72627 transitions. [2019-12-18 19:43:46,014 INFO L78 Accepts]: Start accepts. Automaton has 19259 states and 72627 transitions. Word has length 7 [2019-12-18 19:43:46,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:43:46,015 INFO L462 AbstractCegarLoop]: Abstraction has 19259 states and 72627 transitions. [2019-12-18 19:43:46,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:43:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 19259 states and 72627 transitions. [2019-12-18 19:43:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 19:43:46,016 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:46,016 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:43:46,017 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:43:46,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:46,017 INFO L82 PathProgramCache]: Analyzing trace with hash -960502913, now seen corresponding path program 1 times [2019-12-18 19:43:46,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:46,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543929978] [2019-12-18 19:43:46,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:43:46,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:43:46,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543929978] [2019-12-18 19:43:46,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:43:46,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:43:46,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125683690] [2019-12-18 19:43:46,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:43:46,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:43:46,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:43:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:43:46,069 INFO L87 Difference]: Start difference. First operand 19259 states and 72627 transitions. Second operand 3 states. [2019-12-18 19:43:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:43:46,119 INFO L93 Difference]: Finished difference Result 1431 states and 3371 transitions. [2019-12-18 19:43:46,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:43:46,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 19:43:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:43:46,124 INFO L225 Difference]: With dead ends: 1431 [2019-12-18 19:43:46,124 INFO L226 Difference]: Without dead ends: 1431 [2019-12-18 19:43:46,125 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:43:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2019-12-18 19:43:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1431. [2019-12-18 19:43:46,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2019-12-18 19:43:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 3371 transitions. [2019-12-18 19:43:46,161 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 3371 transitions. Word has length 12 [2019-12-18 19:43:46,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:43:46,161 INFO L462 AbstractCegarLoop]: Abstraction has 1431 states and 3371 transitions. [2019-12-18 19:43:46,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:43:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 3371 transitions. [2019-12-18 19:43:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-18 19:43:46,163 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:43:46,163 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-18 19:43:46,163 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:43:46,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:43:46,163 INFO L82 PathProgramCache]: Analyzing trace with hash -293050852, now seen corresponding path program 1 times [2019-12-18 19:43:46,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:43:46,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818059840] [2019-12-18 19:43:46,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:43:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:43:46,187 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:43:46,188 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:43:46,188 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:43:46,188 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 19:43:46,195 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,196 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,196 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,196 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,196 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,196 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,197 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,197 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,197 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,197 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,197 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,197 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,198 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,198 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,198 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,198 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,198 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,199 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,199 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,199 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,199 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,199 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,200 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,200 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,201 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,201 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,201 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,201 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,202 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,202 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,204 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,204 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,204 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,206 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,206 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,206 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,206 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,208 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,209 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,209 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,209 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,211 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,211 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,211 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,212 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:43:46,215 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 19:43:46,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:43:46,215 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:43:46,215 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:43:46,216 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:43:46,216 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:43:46,216 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:43:46,216 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:43:46,216 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:43:46,217 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 73 transitions [2019-12-18 19:43:46,218 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions [2019-12-18 19:43:46,232 INFO L126 PetriNetUnfolder]: 11/117 cut-off events. [2019-12-18 19:43:46,233 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:46,235 INFO L76 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 117 events. 11/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 293 event pairs. 65/160 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2019-12-18 19:43:46,244 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions [2019-12-18 19:43:46,259 INFO L126 PetriNetUnfolder]: 11/117 cut-off events. [2019-12-18 19:43:46,259 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:43:46,262 INFO L76 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 117 events. 11/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 293 event pairs. 65/160 useless extension candidates. Maximal degree in co-relation 113. Up to 12 conditions per place. [2019-12-18 19:43:46,270 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3200 [2019-12-18 19:43:46,270 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:43:46,639 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10349 [2019-12-18 19:43:46,640 INFO L214 etLargeBlockEncoding]: Total number of compositions: 31 [2019-12-18 19:43:46,640 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 46 transitions [2019-12-18 19:44:52,572 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 156839 states. [2019-12-18 19:44:52,572 INFO L276 IsEmpty]: Start isEmpty. Operand 156839 states. [2019-12-18 19:44:52,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 19:44:52,573 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:44:52,573 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:44:52,573 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]=== [2019-12-18 19:44:52,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:44:52,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1867680734, now seen corresponding path program 1 times [2019-12-18 19:44:52,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:44:52,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660802463] [2019-12-18 19:44:52,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:44:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:44:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:44:52,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660802463] [2019-12-18 19:44:52,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:44:52,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:44:52,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645801220] [2019-12-18 19:44:52,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:44:52,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:44:52,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:44:52,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:44:52,597 INFO L87 Difference]: Start difference. First operand 156839 states. Second operand 3 states. [2019-12-18 19:44:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:44:57,003 INFO L93 Difference]: Finished difference Result 178219 states and 802942 transitions. [2019-12-18 19:44:57,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:44:57,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 19:44:57,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:44:57,888 INFO L225 Difference]: With dead ends: 178219 [2019-12-18 19:44:57,888 INFO L226 Difference]: Without dead ends: 178219 [2019-12-18 19:44:57,888 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 [2019-12-18 19:45:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178219 states. [2019-12-18 19:45:09,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178219 to 149404. [2019-12-18 19:45:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149404 states. [2019-12-18 19:45:09,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149404 states to 149404 states and 682448 transitions. [2019-12-18 19:45:09,776 INFO L78 Accepts]: Start accepts. Automaton has 149404 states and 682448 transitions. Word has length 7 [2019-12-18 19:45:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:09,777 INFO L462 AbstractCegarLoop]: Abstraction has 149404 states and 682448 transitions. [2019-12-18 19:45:09,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:09,777 INFO L276 IsEmpty]: Start isEmpty. Operand 149404 states and 682448 transitions. [2019-12-18 19:45:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 19:45:09,778 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:09,778 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:09,778 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]=== [2019-12-18 19:45:09,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:09,778 INFO L82 PathProgramCache]: Analyzing trace with hash -812101254, now seen corresponding path program 1 times [2019-12-18 19:45:09,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:09,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348668198] [2019-12-18 19:45:09,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:09,807 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348668198] [2019-12-18 19:45:09,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:09,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:45:09,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838254844] [2019-12-18 19:45:09,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:45:09,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:09,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:45:09,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:09,809 INFO L87 Difference]: Start difference. First operand 149404 states and 682448 transitions. Second operand 3 states. [2019-12-18 19:45:09,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:09,859 INFO L93 Difference]: Finished difference Result 3939 states and 9727 transitions. [2019-12-18 19:45:09,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:45:09,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 19:45:09,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:09,865 INFO L225 Difference]: With dead ends: 3939 [2019-12-18 19:45:09,866 INFO L226 Difference]: Without dead ends: 3939 [2019-12-18 19:45:09,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:09,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2019-12-18 19:45:09,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3939. [2019-12-18 19:45:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3939 states. [2019-12-18 19:45:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 9727 transitions. [2019-12-18 19:45:09,919 INFO L78 Accepts]: Start accepts. Automaton has 3939 states and 9727 transitions. Word has length 12 [2019-12-18 19:45:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:09,919 INFO L462 AbstractCegarLoop]: Abstraction has 3939 states and 9727 transitions. [2019-12-18 19:45:09,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:09,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3939 states and 9727 transitions. [2019-12-18 19:45:09,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-18 19:45:09,920 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:09,920 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:09,921 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]=== [2019-12-18 19:45:09,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:09,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1754824207, now seen corresponding path program 1 times [2019-12-18 19:45:09,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:09,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418932741] [2019-12-18 19:45:09,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:09,942 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:45:09,942 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:45:09,943 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:45:09,943 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-18 19:45:09,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,950 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,950 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,950 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,951 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,951 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,951 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,951 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,952 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,952 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,952 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,953 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,953 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,953 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,954 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,954 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,955 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,955 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,955 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,956 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,956 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,956 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,957 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,957 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,959 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,959 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,959 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,962 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,962 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,963 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,964 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,965 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,966 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:09,968 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-18 19:45:09,968 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:45:09,968 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:45:09,968 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:45:09,968 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:45:09,968 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:45:09,969 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:45:09,969 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:45:09,969 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:45:09,970 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 84 transitions [2019-12-18 19:45:09,970 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions [2019-12-18 19:45:09,985 INFO L126 PetriNetUnfolder]: 13/137 cut-off events. [2019-12-18 19:45:09,985 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:09,988 INFO L76 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 137 events. 13/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 347 event pairs. 90/201 useless extension candidates. Maximal degree in co-relation 141. Up to 14 conditions per place. [2019-12-18 19:45:09,995 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions [2019-12-18 19:45:10,010 INFO L126 PetriNetUnfolder]: 13/137 cut-off events. [2019-12-18 19:45:10,010 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:10,013 INFO L76 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 137 events. 13/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 347 event pairs. 90/201 useless extension candidates. Maximal degree in co-relation 141. Up to 14 conditions per place. [2019-12-18 19:45:10,021 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4500 [2019-12-18 19:45:10,021 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:45:10,411 INFO L206 etLargeBlockEncoding]: Checked pairs total: 14422 [2019-12-18 19:45:10,411 INFO L214 etLargeBlockEncoding]: Total number of compositions: 35 [2019-12-18 19:45:10,412 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions Received shutdown request... [2019-12-18 19:48:01,959 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 19:48:01,962 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 19:48:01,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:48:01 BasicIcfg [2019-12-18 19:48:01,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:48:01,966 INFO L168 Benchmark]: Toolchain (without parser) took 264620.38 ms. Allocated memory was 147.3 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 102.4 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2019-12-18 19:48:01,967 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 19:48:01,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.31 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.2 MB in the beginning and 162.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:48:01,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.38 ms. Allocated memory is still 203.4 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-12-18 19:48:01,970 INFO L168 Benchmark]: Boogie Preprocessor took 25.59 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:48:01,970 INFO L168 Benchmark]: RCFGBuilder took 362.97 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 143.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-12-18 19:48:01,971 INFO L168 Benchmark]: TraceAbstraction took 263501.89 ms. Allocated memory was 203.4 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 142.7 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2019-12-18 19:48:01,976 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 670.31 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.2 MB in the beginning and 162.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.38 ms. Allocated memory is still 203.4 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.59 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 362.97 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 143.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263501.89 ms. Allocated memory was 203.4 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 142.7 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.3 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: 0.4s, 42 ProgramPointsBefore, 23 ProgramPointsAfterwards, 40 TransitionsBefore, 22 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 262 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1633 CheckedPairsTotal, 20 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.4s, 54 ProgramPointsBefore, 33 ProgramPointsAfterwards, 51 TransitionsBefore, 32 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 521 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4682 CheckedPairsTotal, 23 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.4s, 66 ProgramPointsBefore, 41 ProgramPointsAfterwards, 62 TransitionsBefore, 39 TransitionsAfterwards, 2120 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 749 VarBasedMoverChecksPositive, 48 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 7962 CheckedPairsTotal, 27 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.4s, 78 ProgramPointsBefore, 49 ProgramPointsAfterwards, 73 TransitionsBefore, 46 TransitionsAfterwards, 3200 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 1162 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 10349 CheckedPairsTotal, 31 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.4s, 90 ProgramPointsBefore, 57 ProgramPointsAfterwards, 84 TransitionsBefore, 53 TransitionsAfterwards, 4500 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 5 ChoiceCompositions, 1484 VarBasedMoverChecksPositive, 50 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 14422 CheckedPairsTotal, 35 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 57 places, 53 transitions. Already constructed 287595 states. Currently 65403 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Result: TIMEOUT, OverallTime: 171.9s, 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