/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/46_monabsex2_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 23:14:54,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 23:14:54,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 23:14:54,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 23:14:54,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 23:14:54,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 23:14:54,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 23:14:54,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 23:14:54,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 23:14:54,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 23:14:54,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 23:14:54,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 23:14:54,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 23:14:54,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 23:14:54,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 23:14:54,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 23:14:54,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 23:14:54,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 23:14:54,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 23:14:54,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 23:14:54,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 23:14:54,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 23:14:54,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 23:14:54,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 23:14:54,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 23:14:54,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 23:14:54,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 23:14:54,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 23:14:54,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 23:14:54,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 23:14:54,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 23:14:54,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 23:14:54,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 23:14:54,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 23:14:54,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 23:14:54,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 23:14:54,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 23:14:54,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 23:14:54,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 23:14:54,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 23:14:54,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 23:14:54,985 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 [2020-04-17 23:14:54,999 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 23:14:54,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 23:14:55,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 23:14:55,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 23:14:55,001 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 23:14:55,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 23:14:55,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 23:14:55,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 23:14:55,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 23:14:55,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 23:14:55,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 23:14:55,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 23:14:55,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 23:14:55,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 23:14:55,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 23:14:55,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 23:14:55,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 23:14:55,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 23:14:55,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 23:14:55,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 23:14:55,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 23:14:55,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 23:14:55,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 23:14:55,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 23:14:55,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 23:14:55,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 23:14:55,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 23:14:55,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-17 23:14:55,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 23:14:55,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 23:14:55,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 23:14:55,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 23:14:55,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 23:14:55,292 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 23:14:55,293 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 23:14:55,294 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2020-04-17 23:14:55,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98e053e4/6977200ded67482fb71a39bc3da67074/FLAGc0523d361 [2020-04-17 23:14:55,950 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 23:14:55,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2020-04-17 23:14:55,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98e053e4/6977200ded67482fb71a39bc3da67074/FLAGc0523d361 [2020-04-17 23:14:56,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98e053e4/6977200ded67482fb71a39bc3da67074 [2020-04-17 23:14:56,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 23:14:56,321 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 23:14:56,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 23:14:56,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 23:14:56,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 23:14:56,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:56,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ab297e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56, skipping insertion in model container [2020-04-17 23:14:56,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:56,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 23:14:56,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 23:14:56,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 23:14:56,863 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 23:14:56,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 23:14:56,974 INFO L208 MainTranslator]: Completed translation [2020-04-17 23:14:56,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56 WrapperNode [2020-04-17 23:14:56,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 23:14:56,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 23:14:56,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 23:14:56,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 23:14:56,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 23:14:57,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 23:14:57,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 23:14:57,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 23:14:57,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (1/1) ... [2020-04-17 23:14:57,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 23:14:57,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 23:14:57,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 23:14:57,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 23:14:57,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (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 [2020-04-17 23:14:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-17 23:14:57,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-17 23:14:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 23:14:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 23:14:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 23:14:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 23:14:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 23:14:57,135 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 23:14:57,489 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 23:14:57,490 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-04-17 23:14:57,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 11:14:57 BoogieIcfgContainer [2020-04-17 23:14:57,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 23:14:57,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 23:14:57,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 23:14:57,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 23:14:57,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 11:14:56" (1/3) ... [2020-04-17 23:14:57,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50deb60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 11:14:57, skipping insertion in model container [2020-04-17 23:14:57,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 11:14:56" (2/3) ... [2020-04-17 23:14:57,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50deb60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 11:14:57, skipping insertion in model container [2020-04-17 23:14:57,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 11:14:57" (3/3) ... [2020-04-17 23:14:57,502 INFO L109 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2020-04-17 23:14:57,513 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 23:14:57,514 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 23:14:57,521 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 23:14:57,522 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 23:14:57,543 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,544 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,544 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,545 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,545 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,546 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,551 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,551 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,551 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,552 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:57,584 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-17 23:14:57,604 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 23:14:57,604 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 23:14:57,604 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 23:14:57,604 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 23:14:57,605 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 23:14:57,605 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 23:14:57,605 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 23:14:57,605 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 23:14:57,621 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 28 transitions, 61 flow [2020-04-17 23:14:57,623 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 61 flow [2020-04-17 23:14:57,659 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2020-04-17 23:14:57,659 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 23:14:57,665 INFO L80 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 18. Up to 4 conditions per place. [2020-04-17 23:14:57,667 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 61 flow [2020-04-17 23:14:57,678 INFO L129 PetriNetUnfolder]: 3/36 cut-off events. [2020-04-17 23:14:57,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 23:14:57,680 INFO L80 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 36 events. 3/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 18. Up to 4 conditions per place. [2020-04-17 23:14:57,681 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 180 [2020-04-17 23:14:57,682 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-17 23:14:58,419 INFO L206 etLargeBlockEncoding]: Checked pairs total: 114 [2020-04-17 23:14:58,420 INFO L214 etLargeBlockEncoding]: Total number of compositions: 22 [2020-04-17 23:14:58,424 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-04-17 23:14:58,442 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-04-17 23:14:58,444 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-04-17 23:14:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-17 23:14:58,456 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:14:58,456 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-17 23:14:58,457 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 23:14:58,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:14:58,466 INFO L82 PathProgramCache]: Analyzing trace with hash 4107967, now seen corresponding path program 1 times [2020-04-17 23:14:58,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:14:58,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852211985] [2020-04-17 23:14:58,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:14:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:14:58,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:14:58,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852211985] [2020-04-17 23:14:58,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:14:58,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 23:14:58,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231051435] [2020-04-17 23:14:58,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:14:58,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:14:58,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:14:58,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:14:58,698 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-04-17 23:14:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:14:58,718 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-04-17 23:14:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:14:58,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-17 23:14:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:14:58,734 INFO L225 Difference]: With dead ends: 11 [2020-04-17 23:14:58,734 INFO L226 Difference]: Without dead ends: 11 [2020-04-17 23:14:58,736 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:14:58,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-04-17 23:14:58,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-04-17 23:14:58,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-04-17 23:14:58,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-04-17 23:14:58,777 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-04-17 23:14:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:14:58,778 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-04-17 23:14:58,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:14:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-04-17 23:14:58,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-17 23:14:58,779 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:14:58,779 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-04-17 23:14:58,779 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 23:14:58,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:14:58,780 INFO L82 PathProgramCache]: Analyzing trace with hash -347254361, now seen corresponding path program 1 times [2020-04-17 23:14:58,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:14:58,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851561104] [2020-04-17 23:14:58,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:14:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:14:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:14:58,874 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 23:14:58,875 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 23:14:58,877 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-17 23:14:58,879 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-17 23:14:58,888 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,889 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,890 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,890 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,891 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,891 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,891 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,892 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,892 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,892 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,892 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,894 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,894 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,897 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,897 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,897 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,898 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:58,900 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 23:14:58,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 23:14:58,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 23:14:58,900 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 23:14:58,901 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 23:14:58,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 23:14:58,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 23:14:58,903 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 23:14:58,903 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 23:14:58,905 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 38 transitions, 88 flow [2020-04-17 23:14:58,906 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions, 88 flow [2020-04-17 23:14:58,935 INFO L129 PetriNetUnfolder]: 5/55 cut-off events. [2020-04-17 23:14:58,936 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-04-17 23:14:58,940 INFO L80 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 5/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2020-04-17 23:14:58,942 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions, 88 flow [2020-04-17 23:14:58,964 INFO L129 PetriNetUnfolder]: 5/55 cut-off events. [2020-04-17 23:14:58,965 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-04-17 23:14:58,968 INFO L80 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 5/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2020-04-17 23:14:58,970 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 540 [2020-04-17 23:14:58,970 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-17 23:14:59,449 INFO L206 etLargeBlockEncoding]: Checked pairs total: 836 [2020-04-17 23:14:59,449 INFO L214 etLargeBlockEncoding]: Total number of compositions: 28 [2020-04-17 23:14:59,450 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 16 transitions, 44 flow [2020-04-17 23:14:59,466 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 149 states. [2020-04-17 23:14:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-04-17 23:14:59,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-17 23:14:59,467 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:14:59,468 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-17 23:14:59,468 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:14:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:14:59,469 INFO L82 PathProgramCache]: Analyzing trace with hash 6502175, now seen corresponding path program 1 times [2020-04-17 23:14:59,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:14:59,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204902944] [2020-04-17 23:14:59,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:14:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:14:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:14:59,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204902944] [2020-04-17 23:14:59,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:14:59,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 23:14:59,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650372057] [2020-04-17 23:14:59,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:14:59,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:14:59,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:14:59,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:14:59,538 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 3 states. [2020-04-17 23:14:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:14:59,562 INFO L93 Difference]: Finished difference Result 87 states and 182 transitions. [2020-04-17 23:14:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:14:59,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-17 23:14:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:14:59,565 INFO L225 Difference]: With dead ends: 87 [2020-04-17 23:14:59,565 INFO L226 Difference]: Without dead ends: 87 [2020-04-17 23:14:59,566 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:14:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-04-17 23:14:59,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-04-17 23:14:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-04-17 23:14:59,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 182 transitions. [2020-04-17 23:14:59,582 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 182 transitions. Word has length 4 [2020-04-17 23:14:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:14:59,582 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 182 transitions. [2020-04-17 23:14:59,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:14:59,582 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 182 transitions. [2020-04-17 23:14:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 23:14:59,583 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:14:59,583 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-04-17 23:14:59,584 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:14:59,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:14:59,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1890616172, now seen corresponding path program 1 times [2020-04-17 23:14:59,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:14:59,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238562428] [2020-04-17 23:14:59,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:14:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:14:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:14:59,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 23:14:59,642 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 23:14:59,643 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-17 23:14:59,645 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-17 23:14:59,655 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,655 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,655 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,655 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,656 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,657 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,658 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,658 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,659 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,659 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,659 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,660 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,660 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,660 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,660 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,661 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,661 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,661 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,662 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,662 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,666 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,666 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,666 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,667 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,668 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,669 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,669 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,669 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:14:59,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 23:14:59,671 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 23:14:59,671 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 23:14:59,671 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 23:14:59,671 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 23:14:59,672 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 23:14:59,672 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 23:14:59,672 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 23:14:59,672 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 23:14:59,674 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions, 117 flow [2020-04-17 23:14:59,674 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 117 flow [2020-04-17 23:14:59,704 INFO L129 PetriNetUnfolder]: 7/74 cut-off events. [2020-04-17 23:14:59,706 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-04-17 23:14:59,707 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 74 events. 7/74 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 170 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2020-04-17 23:14:59,712 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 117 flow [2020-04-17 23:14:59,737 INFO L129 PetriNetUnfolder]: 7/74 cut-off events. [2020-04-17 23:14:59,737 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-04-17 23:14:59,740 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 74 events. 7/74 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 170 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2020-04-17 23:14:59,742 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1080 [2020-04-17 23:14:59,742 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-17 23:15:00,237 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1735 [2020-04-17 23:15:00,238 INFO L214 etLargeBlockEncoding]: Total number of compositions: 36 [2020-04-17 23:15:00,238 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 22 transitions, 65 flow [2020-04-17 23:15:00,275 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 749 states. [2020-04-17 23:15:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states. [2020-04-17 23:15:00,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-17 23:15:00,276 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:00,277 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-17 23:15:00,277 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:15:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:00,278 INFO L82 PathProgramCache]: Analyzing trace with hash 9425446, now seen corresponding path program 1 times [2020-04-17 23:15:00,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:00,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301431479] [2020-04-17 23:15:00,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:15:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:15:00,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301431479] [2020-04-17 23:15:00,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:15:00,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 23:15:00,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111352378] [2020-04-17 23:15:00,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:15:00,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:15:00,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:15:00,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:00,349 INFO L87 Difference]: Start difference. First operand 749 states. Second operand 3 states. [2020-04-17 23:15:00,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:15:00,395 INFO L93 Difference]: Finished difference Result 421 states and 1176 transitions. [2020-04-17 23:15:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:15:00,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-17 23:15:00,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:15:00,412 INFO L225 Difference]: With dead ends: 421 [2020-04-17 23:15:00,413 INFO L226 Difference]: Without dead ends: 421 [2020-04-17 23:15:00,417 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:00,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-04-17 23:15:00,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-04-17 23:15:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-04-17 23:15:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 1176 transitions. [2020-04-17 23:15:00,494 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 1176 transitions. Word has length 4 [2020-04-17 23:15:00,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:15:00,494 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 1176 transitions. [2020-04-17 23:15:00,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:15:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 1176 transitions. [2020-04-17 23:15:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 23:15:00,498 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:00,498 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:15:00,498 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:15:00,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:00,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1692799425, now seen corresponding path program 1 times [2020-04-17 23:15:00,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:00,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854888556] [2020-04-17 23:15:00,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:15:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:15:00,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854888556] [2020-04-17 23:15:00,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:15:00,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 23:15:00,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127659698] [2020-04-17 23:15:00,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:15:00,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:15:00,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:15:00,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:00,568 INFO L87 Difference]: Start difference. First operand 421 states and 1176 transitions. Second operand 3 states. [2020-04-17 23:15:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:15:00,599 INFO L93 Difference]: Finished difference Result 319 states and 912 transitions. [2020-04-17 23:15:00,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:15:00,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 23:15:00,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:15:00,606 INFO L225 Difference]: With dead ends: 319 [2020-04-17 23:15:00,607 INFO L226 Difference]: Without dead ends: 319 [2020-04-17 23:15:00,608 INFO L678 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 [2020-04-17 23:15:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-04-17 23:15:00,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2020-04-17 23:15:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-04-17 23:15:00,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 912 transitions. [2020-04-17 23:15:00,643 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 912 transitions. Word has length 10 [2020-04-17 23:15:00,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:15:00,644 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 912 transitions. [2020-04-17 23:15:00,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:15:00,648 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 912 transitions. [2020-04-17 23:15:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 23:15:00,649 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:00,649 INFO L425 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-04-17 23:15:00,650 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:15:00,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:00,651 INFO L82 PathProgramCache]: Analyzing trace with hash 790757285, now seen corresponding path program 1 times [2020-04-17 23:15:00,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:00,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122503247] [2020-04-17 23:15:00,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:15:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:15:00,698 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 23:15:00,699 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 23:15:00,699 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-17 23:15:00,699 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-17 23:15:00,706 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,706 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,706 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,706 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,707 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,707 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,707 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,707 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,707 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,708 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,708 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,708 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,708 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,708 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,709 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,709 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,709 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,709 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,709 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,710 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,710 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,710 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,710 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,710 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,711 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,711 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,711 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,711 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,713 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,713 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,713 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,713 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,715 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,715 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,715 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,715 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,722 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,722 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,722 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,722 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:00,725 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-17 23:15:00,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 23:15:00,725 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 23:15:00,725 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 23:15:00,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 23:15:00,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 23:15:00,726 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 23:15:00,726 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 23:15:00,726 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 23:15:00,731 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 58 transitions, 148 flow [2020-04-17 23:15:00,731 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 148 flow [2020-04-17 23:15:00,755 INFO L129 PetriNetUnfolder]: 9/93 cut-off events. [2020-04-17 23:15:00,755 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-04-17 23:15:00,756 INFO L80 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 93 events. 9/93 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 217 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 83. Up to 10 conditions per place. [2020-04-17 23:15:00,759 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 148 flow [2020-04-17 23:15:00,774 INFO L129 PetriNetUnfolder]: 9/93 cut-off events. [2020-04-17 23:15:00,774 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-04-17 23:15:00,775 INFO L80 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 93 events. 9/93 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 217 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 83. Up to 10 conditions per place. [2020-04-17 23:15:00,777 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1800 [2020-04-17 23:15:00,777 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-17 23:15:01,332 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3606 [2020-04-17 23:15:01,332 INFO L214 etLargeBlockEncoding]: Total number of compositions: 37 [2020-04-17 23:15:01,332 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 31 transitions, 94 flow [2020-04-17 23:15:01,956 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7269 states. [2020-04-17 23:15:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7269 states. [2020-04-17 23:15:01,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-17 23:15:01,957 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:01,957 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-17 23:15:01,957 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 23:15:01,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:01,958 INFO L82 PathProgramCache]: Analyzing trace with hash 12782696, now seen corresponding path program 1 times [2020-04-17 23:15:01,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:01,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815425802] [2020-04-17 23:15:01,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:15:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:15:01,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815425802] [2020-04-17 23:15:01,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:15:01,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 23:15:01,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407735653] [2020-04-17 23:15:01,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:15:01,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:15:01,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:15:01,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:01,980 INFO L87 Difference]: Start difference. First operand 7269 states. Second operand 3 states. [2020-04-17 23:15:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:15:02,094 INFO L93 Difference]: Finished difference Result 4227 states and 15765 transitions. [2020-04-17 23:15:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:15:02,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-17 23:15:02,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:15:02,140 INFO L225 Difference]: With dead ends: 4227 [2020-04-17 23:15:02,140 INFO L226 Difference]: Without dead ends: 4227 [2020-04-17 23:15:02,140 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2020-04-17 23:15:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 4227. [2020-04-17 23:15:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4227 states. [2020-04-17 23:15:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 15765 transitions. [2020-04-17 23:15:02,422 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 15765 transitions. Word has length 4 [2020-04-17 23:15:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:15:02,423 INFO L479 AbstractCegarLoop]: Abstraction has 4227 states and 15765 transitions. [2020-04-17 23:15:02,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:15:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 15765 transitions. [2020-04-17 23:15:02,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 23:15:02,425 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:02,425 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:15:02,425 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 23:15:02,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:02,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1357463974, now seen corresponding path program 1 times [2020-04-17 23:15:02,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:02,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934372975] [2020-04-17 23:15:02,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:15:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-17 23:15:02,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934372975] [2020-04-17 23:15:02,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:15:02,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 23:15:02,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984182653] [2020-04-17 23:15:02,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:15:02,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:15:02,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:15:02,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:02,499 INFO L87 Difference]: Start difference. First operand 4227 states and 15765 transitions. Second operand 3 states. [2020-04-17 23:15:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:15:02,577 INFO L93 Difference]: Finished difference Result 1975 states and 7342 transitions. [2020-04-17 23:15:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:15:02,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 23:15:02,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:15:02,602 INFO L225 Difference]: With dead ends: 1975 [2020-04-17 23:15:02,603 INFO L226 Difference]: Without dead ends: 1975 [2020-04-17 23:15:02,604 INFO L678 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 [2020-04-17 23:15:02,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2020-04-17 23:15:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1975. [2020-04-17 23:15:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2020-04-17 23:15:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 7342 transitions. [2020-04-17 23:15:02,844 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 7342 transitions. Word has length 10 [2020-04-17 23:15:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:15:02,845 INFO L479 AbstractCegarLoop]: Abstraction has 1975 states and 7342 transitions. [2020-04-17 23:15:02,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:15:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 7342 transitions. [2020-04-17 23:15:02,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 23:15:02,853 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:02,853 INFO L425 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-04-17 23:15:02,853 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 23:15:02,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:02,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1886547670, now seen corresponding path program 1 times [2020-04-17 23:15:02,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:02,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986532502] [2020-04-17 23:15:02,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:15:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:15:02,905 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 23:15:02,905 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 23:15:02,906 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-17 23:15:02,906 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-04-17 23:15:02,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,916 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,917 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,917 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,917 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,919 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,919 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,920 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,920 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,922 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,922 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,922 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,922 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,923 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,923 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,924 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,924 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,924 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,924 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,925 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,925 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,926 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,926 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,926 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,928 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,928 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,928 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,928 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,930 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,931 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,932 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,933 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,933 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,933 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,935 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,935 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:02,937 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-17 23:15:02,937 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 23:15:02,937 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 23:15:02,937 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 23:15:02,937 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 23:15:02,937 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 23:15:02,938 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 23:15:02,938 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 23:15:02,938 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 23:15:02,939 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 68 transitions, 181 flow [2020-04-17 23:15:02,939 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 181 flow [2020-04-17 23:15:02,953 INFO L129 PetriNetUnfolder]: 11/112 cut-off events. [2020-04-17 23:15:02,953 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-04-17 23:15:02,954 INFO L80 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 112 events. 11/112 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 264 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 109. Up to 12 conditions per place. [2020-04-17 23:15:02,957 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 181 flow [2020-04-17 23:15:02,970 INFO L129 PetriNetUnfolder]: 11/112 cut-off events. [2020-04-17 23:15:02,970 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-04-17 23:15:02,971 INFO L80 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 112 events. 11/112 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 264 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 109. Up to 12 conditions per place. [2020-04-17 23:15:02,975 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2700 [2020-04-17 23:15:02,975 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-17 23:15:03,579 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5637 [2020-04-17 23:15:03,579 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2020-04-17 23:15:03,579 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 37 transitions, 119 flow [2020-04-17 23:15:09,457 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36397 states. [2020-04-17 23:15:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand 36397 states. [2020-04-17 23:15:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-17 23:15:09,458 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:09,458 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-17 23:15:09,458 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:15:09,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:09,459 INFO L82 PathProgramCache]: Analyzing trace with hash 16657360, now seen corresponding path program 1 times [2020-04-17 23:15:09,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:09,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641186493] [2020-04-17 23:15:09,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:15:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 23:15:09,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641186493] [2020-04-17 23:15:09,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:15:09,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 23:15:09,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046726960] [2020-04-17 23:15:09,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:15:09,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:15:09,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:15:09,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:09,479 INFO L87 Difference]: Start difference. First operand 36397 states. Second operand 3 states. [2020-04-17 23:15:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:15:10,081 INFO L93 Difference]: Finished difference Result 22246 states and 100423 transitions. [2020-04-17 23:15:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:15:10,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-17 23:15:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:15:10,265 INFO L225 Difference]: With dead ends: 22246 [2020-04-17 23:15:10,265 INFO L226 Difference]: Without dead ends: 22246 [2020-04-17 23:15:10,266 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:11,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22246 states. [2020-04-17 23:15:12,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22246 to 22246. [2020-04-17 23:15:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22246 states. [2020-04-17 23:15:12,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22246 states to 22246 states and 100423 transitions. [2020-04-17 23:15:12,799 INFO L78 Accepts]: Start accepts. Automaton has 22246 states and 100423 transitions. Word has length 4 [2020-04-17 23:15:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:15:12,799 INFO L479 AbstractCegarLoop]: Abstraction has 22246 states and 100423 transitions. [2020-04-17 23:15:12,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:15:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand 22246 states and 100423 transitions. [2020-04-17 23:15:12,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 23:15:12,800 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:12,800 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:15:12,800 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:15:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash -667162749, now seen corresponding path program 1 times [2020-04-17 23:15:12,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:12,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289189206] [2020-04-17 23:15:12,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 23:15:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-17 23:15:12,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289189206] [2020-04-17 23:15:12,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 23:15:12,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 23:15:12,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607688549] [2020-04-17 23:15:12,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 23:15:12,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 23:15:12,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 23:15:12,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 23:15:12,847 INFO L87 Difference]: Start difference. First operand 22246 states and 100423 transitions. Second operand 3 states. [2020-04-17 23:15:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 23:15:13,009 INFO L93 Difference]: Finished difference Result 7918 states and 35335 transitions. [2020-04-17 23:15:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 23:15:13,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 23:15:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 23:15:13,049 INFO L225 Difference]: With dead ends: 7918 [2020-04-17 23:15:13,049 INFO L226 Difference]: Without dead ends: 7918 [2020-04-17 23:15:13,049 INFO L678 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 [2020-04-17 23:15:13,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7918 states. [2020-04-17 23:15:13,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7918 to 7918. [2020-04-17 23:15:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7918 states. [2020-04-17 23:15:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7918 states to 7918 states and 35335 transitions. [2020-04-17 23:15:13,365 INFO L78 Accepts]: Start accepts. Automaton has 7918 states and 35335 transitions. Word has length 10 [2020-04-17 23:15:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 23:15:13,365 INFO L479 AbstractCegarLoop]: Abstraction has 7918 states and 35335 transitions. [2020-04-17 23:15:13,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 23:15:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7918 states and 35335 transitions. [2020-04-17 23:15:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 23:15:13,368 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 23:15:13,368 INFO L425 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 23:15:13,369 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 23:15:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 23:15:13,369 INFO L82 PathProgramCache]: Analyzing trace with hash 369573413, now seen corresponding path program 1 times [2020-04-17 23:15:13,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 23:15:13,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113974503] [2020-04-17 23:15:13,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 23:15:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:15:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 23:15:13,407 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 23:15:13,408 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 23:15:13,409 WARN L363 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-17 23:15:13,409 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-04-17 23:15:13,424 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,428 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,428 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,428 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,428 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,432 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,433 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,437 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,438 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,440 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,440 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,440 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,440 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,442 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,443 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,443 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,443 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,445 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,448 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,449 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 23:15:13,450 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-04-17 23:15:13,451 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 23:15:13,451 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 23:15:13,451 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 23:15:13,451 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 23:15:13,451 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 23:15:13,451 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 23:15:13,451 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 23:15:13,452 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 23:15:13,453 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 78 transitions, 216 flow [2020-04-17 23:15:13,453 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 78 transitions, 216 flow [2020-04-17 23:15:13,474 INFO L129 PetriNetUnfolder]: 13/131 cut-off events. [2020-04-17 23:15:13,474 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-04-17 23:15:13,476 INFO L80 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 131 events. 13/131 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 136. Up to 14 conditions per place. [2020-04-17 23:15:13,482 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 78 transitions, 216 flow [2020-04-17 23:15:13,508 INFO L129 PetriNetUnfolder]: 13/131 cut-off events. [2020-04-17 23:15:13,508 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-04-17 23:15:13,510 INFO L80 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 131 events. 13/131 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 136. Up to 14 conditions per place. [2020-04-17 23:15:13,518 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3780 [2020-04-17 23:15:13,518 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-17 23:15:14,214 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9546 [2020-04-17 23:15:14,215 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2020-04-17 23:15:14,216 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 48 transitions, 156 flow Received shutdown request... [2020-04-17 23:19:21,506 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-17 23:19:21,508 WARN L228 ceAbstractionStarter]: Timeout [2020-04-17 23:19:21,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 11:19:21 BasicIcfg [2020-04-17 23:19:21,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 23:19:21,512 INFO L168 Benchmark]: Toolchain (without parser) took 265205.79 ms. Allocated memory was 144.7 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 100.2 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-04-17 23:19:21,512 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-17 23:19:21,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.76 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 98.2 MB in the beginning and 163.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-04-17 23:19:21,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.26 ms. Allocated memory is still 202.9 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 23:19:21,515 INFO L168 Benchmark]: Boogie Preprocessor took 27.63 ms. Allocated memory is still 202.9 MB. Free memory was 161.1 MB in the beginning and 159.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 23:19:21,516 INFO L168 Benchmark]: RCFGBuilder took 441.13 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 144.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-04-17 23:19:21,516 INFO L168 Benchmark]: TraceAbstraction took 264014.26 ms. Allocated memory was 202.9 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 143.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-04-17 23:19:21,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.76 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 98.2 MB in the beginning and 163.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.26 ms. Allocated memory is still 202.9 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.63 ms. Allocated memory is still 202.9 MB. Free memory was 161.1 MB in the beginning and 159.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.13 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 144.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 264014.26 ms. Allocated memory was 202.9 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 143.6 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 29 ProgramPointsBefore, 11 ProgramPointsAfterwards, 28 TransitionsBefore, 8 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 83 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 114 CheckedPairsTotal, 22 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 40 ProgramPointsBefore, 20 ProgramPointsAfterwards, 38 TransitionsBefore, 16 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 279 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 836 CheckedPairsTotal, 28 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 51 ProgramPointsBefore, 27 ProgramPointsAfterwards, 48 TransitionsBefore, 22 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 520 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1735 CheckedPairsTotal, 36 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 62 ProgramPointsBefore, 38 ProgramPointsAfterwards, 58 TransitionsBefore, 31 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 781 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3606 CheckedPairsTotal, 37 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 73 ProgramPointsBefore, 45 ProgramPointsAfterwards, 68 TransitionsBefore, 37 TransitionsAfterwards, 2700 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 1219 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5637 CheckedPairsTotal, 45 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 84 ProgramPointsBefore, 56 ProgramPointsAfterwards, 78 TransitionsBefore, 48 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 1655 VarBasedMoverChecksPositive, 78 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 9546 CheckedPairsTotal, 50 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 677]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 677). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 56 places, 48 transitions, 156 flow. Already constructed 285420 states. Currently 33411 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 263.7s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 257.8s, HoareTripleCheckerStatistics: 179 SDtfs, 87 SDslu, 64 SDs, 0 SdLazy, 89 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36397occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown