/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-array-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:20:21,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:20:21,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:20:21,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:20:21,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:20:21,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:20:21,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:20:21,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:20:21,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:20:21,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:20:21,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:20:21,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:20:21,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:20:21,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:20:21,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:20:21,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:20:21,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:20:21,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:20:21,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:20:21,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:20:21,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:20:21,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:20:21,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:20:21,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:20:21,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:20:21,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:20:21,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:20:21,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:20:21,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:20:21,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:20:21,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:20:21,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:20:21,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:20:21,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:20:21,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:20:21,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:20:21,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:20:21,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:20:21,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:20:21,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:20:21,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:20:21,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 20:20:21,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:20:21,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:20:21,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:20:21,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:20:21,531 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:20:21,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:20:21,532 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:20:21,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:20:21,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:20:21,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:20:21,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:20:21,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:20:21,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:20:21,533 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:20:21,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:20:21,533 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:20:21,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:20:21,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:20:21,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:20:21,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:20:21,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:20:21,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:20:21,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:20:21,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:20:21,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:20:21,535 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:20:21,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:20:21,536 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:20:21,536 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:20:21,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:20:21,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:20:21,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:20:21,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:20:21,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:20:21,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:20:21,829 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:20:21,830 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2020-04-18 20:20:21,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6957c4058/b736c9e0e5324236bda728c1988c86cc/FLAGd24721a9c [2020-04-18 20:20:22,403 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:20:22,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2020-04-18 20:20:22,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6957c4058/b736c9e0e5324236bda728c1988c86cc/FLAGd24721a9c [2020-04-18 20:20:22,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6957c4058/b736c9e0e5324236bda728c1988c86cc [2020-04-18 20:20:22,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:20:22,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:20:22,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:20:22,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:20:22,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:20:22,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:20:22" (1/1) ... [2020-04-18 20:20:22,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bba74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:22, skipping insertion in model container [2020-04-18 20:20:22,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:20:22" (1/1) ... [2020-04-18 20:20:22,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:20:22,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:20:23,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:20:23,451 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:20:23,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:20:23,587 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:20:23,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23 WrapperNode [2020-04-18 20:20:23,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:20:23,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:20:23,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:20:23,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:20:23,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:20:23,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:20:23,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:20:23,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:20:23,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (1/1) ... [2020-04-18 20:20:23,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:20:23,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:20:23,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:20:23,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:20:23,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (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 [2020-04-18 20:20:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-04-18 20:20:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 20:20:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:20:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-04-18 20:20:23,769 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-04-18 20:20:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:20:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:20:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:20:23,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:20:23,772 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 20:20:24,198 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:20:24,198 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-04-18 20:20:24,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:20:24 BoogieIcfgContainer [2020-04-18 20:20:24,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:20:24,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:20:24,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:20:24,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:20:24,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:20:22" (1/3) ... [2020-04-18 20:20:24,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c529758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:20:24, skipping insertion in model container [2020-04-18 20:20:24,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:23" (2/3) ... [2020-04-18 20:20:24,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c529758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:20:24, skipping insertion in model container [2020-04-18 20:20:24,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:20:24" (3/3) ... [2020-04-18 20:20:24,215 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-2.i [2020-04-18 20:20:24,226 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:20:24,226 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:20:24,232 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:20:24,234 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:20:24,260 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,260 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,261 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,261 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,261 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,262 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,262 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,267 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,268 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,268 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,268 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,268 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,307 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:20:24,333 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:20:24,333 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:20:24,333 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:20:24,333 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:20:24,334 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:20:24,334 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:20:24,334 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:20:24,334 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:20:24,356 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 71 transitions, 150 flow [2020-04-18 20:20:24,377 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 252 states. [2020-04-18 20:20:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states. [2020-04-18 20:20:24,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:20:24,390 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:24,391 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:24,392 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:24,398 INFO L82 PathProgramCache]: Analyzing trace with hash -820867433, now seen corresponding path program 1 times [2020-04-18 20:20:24,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:24,405 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1050623154] [2020-04-18 20:20:24,421 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:24,436 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:20:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:20:24,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:20:24,442 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:24,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:24,444 INFO L82 PathProgramCache]: Analyzing trace with hash -820867433, now seen corresponding path program 2 times [2020-04-18 20:20:24,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:24,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323799412] [2020-04-18 20:20:24,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:24,697 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:20:24,698 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:20:24,698 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:20:24,699 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:20:24,699 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 20:20:24,707 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,708 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,708 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,708 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,709 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,709 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,709 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,709 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,710 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,710 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,710 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,710 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,711 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,711 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,711 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,712 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,712 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,712 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,712 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,715 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,715 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,715 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,716 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,716 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:24,729 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:20:24,730 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:20:24,730 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:20:24,730 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:20:24,730 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:20:24,730 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:20:24,731 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:20:24,731 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:20:24,731 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:20:24,734 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 78 transitions, 174 flow [2020-04-18 20:20:24,799 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1626 states. [2020-04-18 20:20:24,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states. [2020-04-18 20:20:24,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:24,802 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:24,802 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:24,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:24,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:24,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1563104110, now seen corresponding path program 1 times [2020-04-18 20:20:24,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:24,804 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1748389305] [2020-04-18 20:20:24,805 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:24,806 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:20:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:24,808 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:24,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1563104110, now seen corresponding path program 2 times [2020-04-18 20:20:24,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:24,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108403496] [2020-04-18 20:20:24,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:24,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108403496] [2020-04-18 20:20:24,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:24,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 20:20:24,936 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:24,941 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:24,953 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:24,954 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:24,958 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:24,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:20:24,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:24,965 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-04-18 20:20:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:24,969 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:20:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:20:24,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:24,970 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1748389305] [2020-04-18 20:20:24,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:24,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 20:20:24,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1748389305] [2020-04-18 20:20:24,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 20:20:24,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:24,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:20:24,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:24,979 INFO L87 Difference]: Start difference. First operand 1626 states. Second operand 2 states. [2020-04-18 20:20:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:25,016 INFO L93 Difference]: Finished difference Result 1626 states and 3947 transitions. [2020-04-18 20:20:25,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 20:20:25,023 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2020-04-18 20:20:25,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:25,058 INFO L225 Difference]: With dead ends: 1626 [2020-04-18 20:20:25,058 INFO L226 Difference]: Without dead ends: 1329 [2020-04-18 20:20:25,061 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2020-04-18 20:20:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1329. [2020-04-18 20:20:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2020-04-18 20:20:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 3230 transitions. [2020-04-18 20:20:25,210 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 3230 transitions. Word has length 32 [2020-04-18 20:20:25,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:25,210 INFO L479 AbstractCegarLoop]: Abstraction has 1329 states and 3230 transitions. [2020-04-18 20:20:25,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 20:20:25,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 3230 transitions. [2020-04-18 20:20:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:25,212 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:25,212 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:25,213 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:25,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:25,213 INFO L82 PathProgramCache]: Analyzing trace with hash -843913485, now seen corresponding path program 1 times [2020-04-18 20:20:25,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:25,214 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [236263656] [2020-04-18 20:20:25,215 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:25,215 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:20:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:25,217 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:25,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:25,217 INFO L82 PathProgramCache]: Analyzing trace with hash -843913485, now seen corresponding path program 2 times [2020-04-18 20:20:25,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:25,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143634588] [2020-04-18 20:20:25,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:25,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143634588] [2020-04-18 20:20:25,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:25,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:20:25,375 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:25,377 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:25,380 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:25,381 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:25,403 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:25,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:25,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:25,404 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-04-18 20:20:25,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:25,435 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:20:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:20:25,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:25,436 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [236263656] [2020-04-18 20:20:25,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:25,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:20:25,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [236263656] [2020-04-18 20:20:25,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:20:25,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:25,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:25,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:20:25,438 INFO L87 Difference]: Start difference. First operand 1329 states and 3230 transitions. Second operand 5 states. [2020-04-18 20:20:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:25,486 INFO L93 Difference]: Finished difference Result 1672 states and 4063 transitions. [2020-04-18 20:20:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 20:20:25,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-04-18 20:20:25,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:25,499 INFO L225 Difference]: With dead ends: 1672 [2020-04-18 20:20:25,500 INFO L226 Difference]: Without dead ends: 1476 [2020-04-18 20:20:25,501 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:20:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2020-04-18 20:20:25,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1378. [2020-04-18 20:20:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-04-18 20:20:25,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 3349 transitions. [2020-04-18 20:20:25,560 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 3349 transitions. Word has length 32 [2020-04-18 20:20:25,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:25,561 INFO L479 AbstractCegarLoop]: Abstraction has 1378 states and 3349 transitions. [2020-04-18 20:20:25,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:20:25,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 3349 transitions. [2020-04-18 20:20:25,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:20:25,566 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:25,567 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:25,567 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:25,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1947211095, now seen corresponding path program 1 times [2020-04-18 20:20:25,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:25,568 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1308746424] [2020-04-18 20:20:25,569 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:25,571 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 38 transitions. [2020-04-18 20:20:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-04-18 20:20:25,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:20:25,574 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:25,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:25,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1947211095, now seen corresponding path program 2 times [2020-04-18 20:20:25,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:25,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966563634] [2020-04-18 20:20:25,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:25,712 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:20:25,712 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:20:25,712 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:20:25,713 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:20:25,714 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 20:20:25,731 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,734 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,735 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,735 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,736 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,743 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,744 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,744 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,744 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,744 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,744 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,745 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,745 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,745 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,745 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,745 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,746 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,746 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,746 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,746 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,746 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,747 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,747 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,747 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,747 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,749 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,751 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,751 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,751 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,752 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,752 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,754 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,755 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,755 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,755 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,755 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:25,764 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:20:25,765 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:20:25,765 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:20:25,765 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:20:25,765 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:20:25,765 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:20:25,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:20:25,766 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:20:25,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:20:25,770 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 85 transitions, 200 flow [2020-04-18 20:20:26,514 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11046 states. [2020-04-18 20:20:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 11046 states. [2020-04-18 20:20:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:26,515 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:26,516 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:26,516 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:26,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:26,516 INFO L82 PathProgramCache]: Analyzing trace with hash 463947155, now seen corresponding path program 1 times [2020-04-18 20:20:26,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:26,517 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1711993199] [2020-04-18 20:20:26,518 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:26,518 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:26,518 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:20:26,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:26,519 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:26,519 INFO L82 PathProgramCache]: Analyzing trace with hash 463947155, now seen corresponding path program 2 times [2020-04-18 20:20:26,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:26,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906027973] [2020-04-18 20:20:26,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:26,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906027973] [2020-04-18 20:20:26,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:26,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 20:20:26,578 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:26,580 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:26,582 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:26,582 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:26,583 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:26,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:20:26,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:26,584 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-04-18 20:20:26,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:26,587 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:20:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:20:26,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:26,588 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1711993199] [2020-04-18 20:20:26,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:26,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 20:20:26,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1711993199] [2020-04-18 20:20:26,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 20:20:26,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:26,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:20:26,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:26,591 INFO L87 Difference]: Start difference. First operand 11046 states. Second operand 2 states. [2020-04-18 20:20:26,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:26,727 INFO L93 Difference]: Finished difference Result 11046 states and 35036 transitions. [2020-04-18 20:20:26,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 20:20:26,727 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2020-04-18 20:20:26,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:26,901 INFO L225 Difference]: With dead ends: 11046 [2020-04-18 20:20:26,902 INFO L226 Difference]: Without dead ends: 8985 [2020-04-18 20:20:26,902 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:26,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8985 states. [2020-04-18 20:20:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8985 to 8985. [2020-04-18 20:20:27,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8985 states. [2020-04-18 20:20:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 28565 transitions. [2020-04-18 20:20:27,319 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 28565 transitions. Word has length 32 [2020-04-18 20:20:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:27,319 INFO L479 AbstractCegarLoop]: Abstraction has 8985 states and 28565 transitions. [2020-04-18 20:20:27,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 20:20:27,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 28565 transitions. [2020-04-18 20:20:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:27,320 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:27,320 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:27,321 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:27,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1304375053, now seen corresponding path program 1 times [2020-04-18 20:20:27,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:27,322 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [778290442] [2020-04-18 20:20:27,323 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:27,323 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:27,324 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:20:27,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:27,325 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:27,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:27,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1304375053, now seen corresponding path program 2 times [2020-04-18 20:20:27,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:27,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675841198] [2020-04-18 20:20:27,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:27,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675841198] [2020-04-18 20:20:27,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:27,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:20:27,517 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:27,522 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:27,525 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:27,525 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:27,542 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:27,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:27,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:27,543 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-04-18 20:20:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:27,568 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:20:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:20:27,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:27,569 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [778290442] [2020-04-18 20:20:27,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:27,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:20:27,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [778290442] [2020-04-18 20:20:27,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:20:27,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:27,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:27,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:20:27,571 INFO L87 Difference]: Start difference. First operand 8985 states and 28565 transitions. Second operand 5 states. [2020-04-18 20:20:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:27,709 INFO L93 Difference]: Finished difference Result 11386 states and 36111 transitions. [2020-04-18 20:20:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 20:20:27,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-04-18 20:20:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:27,772 INFO L225 Difference]: With dead ends: 11386 [2020-04-18 20:20:27,773 INFO L226 Difference]: Without dead ends: 10014 [2020-04-18 20:20:27,773 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:20:27,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10014 states. [2020-04-18 20:20:28,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10014 to 9328. [2020-04-18 20:20:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9328 states. [2020-04-18 20:20:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9328 states to 9328 states and 29643 transitions. [2020-04-18 20:20:28,191 INFO L78 Accepts]: Start accepts. Automaton has 9328 states and 29643 transitions. Word has length 32 [2020-04-18 20:20:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:28,191 INFO L479 AbstractCegarLoop]: Abstraction has 9328 states and 29643 transitions. [2020-04-18 20:20:28,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:20:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 9328 states and 29643 transitions. [2020-04-18 20:20:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:20:28,193 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:28,193 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:28,193 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:28,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:28,194 INFO L82 PathProgramCache]: Analyzing trace with hash -2089246312, now seen corresponding path program 1 times [2020-04-18 20:20:28,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:28,194 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [531888409] [2020-04-18 20:20:28,195 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:28,196 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 39 transitions. [2020-04-18 20:20:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-04-18 20:20:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:20:28,197 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:28,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:28,197 INFO L82 PathProgramCache]: Analyzing trace with hash -2089246312, now seen corresponding path program 2 times [2020-04-18 20:20:28,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:28,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259750360] [2020-04-18 20:20:28,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:28,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:28,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259750360] [2020-04-18 20:20:28,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:28,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:20:28,375 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:28,378 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:28,383 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 39 transitions. [2020-04-18 20:20:28,383 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:28,401 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:28,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:28,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:28,402 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2020-04-18 20:20:28,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:28,418 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2020-04-18 20:20:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2020-04-18 20:20:28,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:28,419 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [531888409] [2020-04-18 20:20:28,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:28,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:20:28,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [531888409] [2020-04-18 20:20:28,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:20:28,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:28,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:28,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:28,421 INFO L87 Difference]: Start difference. First operand 9328 states and 29643 transitions. Second operand 5 states. [2020-04-18 20:20:28,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:28,565 INFO L93 Difference]: Finished difference Result 7450 states and 21894 transitions. [2020-04-18 20:20:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 20:20:28,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-04-18 20:20:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:28,591 INFO L225 Difference]: With dead ends: 7450 [2020-04-18 20:20:28,591 INFO L226 Difference]: Without dead ends: 6671 [2020-04-18 20:20:28,592 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2020-04-18 20:20:28,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 5913. [2020-04-18 20:20:28,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5913 states. [2020-04-18 20:20:28,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 17436 transitions. [2020-04-18 20:20:28,797 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 17436 transitions. Word has length 39 [2020-04-18 20:20:28,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:28,797 INFO L479 AbstractCegarLoop]: Abstraction has 5913 states and 17436 transitions. [2020-04-18 20:20:28,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:20:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 17436 transitions. [2020-04-18 20:20:28,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:20:28,802 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:28,802 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:28,802 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:28,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:28,802 INFO L82 PathProgramCache]: Analyzing trace with hash -720133895, now seen corresponding path program 1 times [2020-04-18 20:20:28,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:28,803 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1501893606] [2020-04-18 20:20:28,805 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:28,807 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 45 transitions. [2020-04-18 20:20:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-04-18 20:20:28,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:20:28,809 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:28,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:28,809 INFO L82 PathProgramCache]: Analyzing trace with hash -720133895, now seen corresponding path program 2 times [2020-04-18 20:20:28,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:28,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796786587] [2020-04-18 20:20:28,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:28,875 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:20:28,876 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:20:28,876 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:20:28,876 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:20:28,876 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 20:20:28,895 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,895 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,895 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,895 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,895 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,896 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,896 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,896 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,897 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,897 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,897 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,897 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,897 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,897 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,898 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,898 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,898 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,898 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,898 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,898 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,899 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,899 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,899 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,899 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,900 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,900 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,900 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,904 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,905 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,905 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,905 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,905 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,906 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,907 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,908 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,908 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,908 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,908 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,910 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,910 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,910 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,910 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,910 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,912 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,912 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,913 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,913 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,913 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:28,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:20:28,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:20:28,920 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:20:28,920 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:20:28,920 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:20:28,920 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:20:28,920 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:20:28,920 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:20:28,920 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:20:28,923 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 92 transitions, 228 flow [2020-04-18 20:20:39,507 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 75798 states. [2020-04-18 20:20:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 75798 states. [2020-04-18 20:20:39,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:39,508 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:39,508 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:39,508 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:39,509 INFO L82 PathProgramCache]: Analyzing trace with hash -674273487, now seen corresponding path program 1 times [2020-04-18 20:20:39,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:39,509 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1662706292] [2020-04-18 20:20:39,509 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:39,510 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:20:39,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:39,510 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:39,511 INFO L82 PathProgramCache]: Analyzing trace with hash -674273487, now seen corresponding path program 2 times [2020-04-18 20:20:39,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:39,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270760126] [2020-04-18 20:20:39,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:39,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270760126] [2020-04-18 20:20:39,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:39,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 20:20:39,529 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:39,531 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:39,533 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:39,533 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:39,534 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:39,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:20:39,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:39,535 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-04-18 20:20:39,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:39,535 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:20:39,536 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:20:39,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:39,536 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1662706292] [2020-04-18 20:20:39,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:39,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 20:20:39,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1662706292] [2020-04-18 20:20:39,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 20:20:39,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:39,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:20:39,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:39,538 INFO L87 Difference]: Start difference. First operand 75798 states. Second operand 2 states. [2020-04-18 20:20:40,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:40,169 INFO L93 Difference]: Finished difference Result 75798 states and 295949 transitions. [2020-04-18 20:20:40,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 20:20:40,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2020-04-18 20:20:40,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:40,575 INFO L225 Difference]: With dead ends: 75798 [2020-04-18 20:20:40,576 INFO L226 Difference]: Without dead ends: 61389 [2020-04-18 20:20:40,576 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:20:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61389 states. [2020-04-18 20:20:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61389 to 61389. [2020-04-18 20:20:44,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61389 states. [2020-04-18 20:20:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61389 states to 61389 states and 240380 transitions. [2020-04-18 20:20:44,609 INFO L78 Accepts]: Start accepts. Automaton has 61389 states and 240380 transitions. Word has length 32 [2020-04-18 20:20:44,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:44,610 INFO L479 AbstractCegarLoop]: Abstraction has 61389 states and 240380 transitions. [2020-04-18 20:20:44,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 20:20:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 61389 states and 240380 transitions. [2020-04-18 20:20:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:44,611 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:44,611 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:44,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:44,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:44,611 INFO L82 PathProgramCache]: Analyzing trace with hash 16287987, now seen corresponding path program 1 times [2020-04-18 20:20:44,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:44,612 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [815531337] [2020-04-18 20:20:44,613 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:44,613 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:44,613 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:20:44,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:20:44,614 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:44,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:44,614 INFO L82 PathProgramCache]: Analyzing trace with hash 16287987, now seen corresponding path program 2 times [2020-04-18 20:20:44,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:44,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61585330] [2020-04-18 20:20:44,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:44,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61585330] [2020-04-18 20:20:44,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:44,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:20:44,655 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:44,658 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:44,661 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:20:44,661 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:44,680 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:44,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:44,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:44,681 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-04-18 20:20:44,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:44,707 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:20:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:20:44,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:44,709 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [815531337] [2020-04-18 20:20:44,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:44,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:20:44,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [815531337] [2020-04-18 20:20:44,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:20:44,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:44,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:44,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:20:44,712 INFO L87 Difference]: Start difference. First operand 61389 states and 240380 transitions. Second operand 5 states. [2020-04-18 20:20:47,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:47,236 INFO L93 Difference]: Finished difference Result 78196 states and 305207 transitions. [2020-04-18 20:20:47,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 20:20:47,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-04-18 20:20:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:47,499 INFO L225 Difference]: With dead ends: 78196 [2020-04-18 20:20:47,499 INFO L226 Difference]: Without dead ends: 68592 [2020-04-18 20:20:47,499 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:20:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68592 states. [2020-04-18 20:20:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68592 to 63790. [2020-04-18 20:20:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63790 states. [2020-04-18 20:20:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63790 states to 63790 states and 249641 transitions. [2020-04-18 20:20:49,349 INFO L78 Accepts]: Start accepts. Automaton has 63790 states and 249641 transitions. Word has length 32 [2020-04-18 20:20:49,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:49,350 INFO L479 AbstractCegarLoop]: Abstraction has 63790 states and 249641 transitions. [2020-04-18 20:20:49,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:20:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 63790 states and 249641 transitions. [2020-04-18 20:20:49,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:20:49,351 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:49,351 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:49,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:49,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:49,352 INFO L82 PathProgramCache]: Analyzing trace with hash 102283124, now seen corresponding path program 1 times [2020-04-18 20:20:49,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:49,352 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [464484032] [2020-04-18 20:20:49,353 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:49,353 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 39 transitions. [2020-04-18 20:20:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-04-18 20:20:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:20:49,354 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:49,354 INFO L82 PathProgramCache]: Analyzing trace with hash 102283124, now seen corresponding path program 2 times [2020-04-18 20:20:49,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:49,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073179697] [2020-04-18 20:20:49,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:20:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:20:49,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073179697] [2020-04-18 20:20:49,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:20:49,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:20:49,411 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:20:49,414 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:49,418 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 39 transitions. [2020-04-18 20:20:49,418 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:20:51,930 WARN L192 SmtUtils]: Spent 2.50 s on a formula simplification that was a NOOP. DAG size: 6 [2020-04-18 20:20:51,931 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:20:51,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:51,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:51,931 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2020-04-18 20:20:51,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:51,950 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2020-04-18 20:20:51,950 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2020-04-18 20:20:51,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:20:51,950 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [464484032] [2020-04-18 20:20:51,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:20:51,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:20:51,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [464484032] [2020-04-18 20:20:51,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:20:51,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:20:51,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:20:51,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:51,953 INFO L87 Difference]: Start difference. First operand 63790 states and 249641 transitions. Second operand 5 states. [2020-04-18 20:20:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:20:52,359 INFO L93 Difference]: Finished difference Result 54382 states and 199539 transitions. [2020-04-18 20:20:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 20:20:52,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-04-18 20:20:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:20:52,493 INFO L225 Difference]: With dead ends: 54382 [2020-04-18 20:20:52,493 INFO L226 Difference]: Without dead ends: 49715 [2020-04-18 20:20:52,493 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:20:52,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49715 states. [2020-04-18 20:20:53,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49715 to 43311. [2020-04-18 20:20:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43311 states. [2020-04-18 20:20:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43311 states to 43311 states and 159350 transitions. [2020-04-18 20:20:53,903 INFO L78 Accepts]: Start accepts. Automaton has 43311 states and 159350 transitions. Word has length 39 [2020-04-18 20:20:53,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:20:53,903 INFO L479 AbstractCegarLoop]: Abstraction has 43311 states and 159350 transitions. [2020-04-18 20:20:53,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:20:53,903 INFO L276 IsEmpty]: Start isEmpty. Operand 43311 states and 159350 transitions. [2020-04-18 20:20:53,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 20:20:53,915 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:20:53,915 INFO L425 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:20:53,915 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:20:53,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:53,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1051494560, now seen corresponding path program 1 times [2020-04-18 20:20:53,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:20:53,916 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1478585788] [2020-04-18 20:20:53,917 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:20:53,921 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 52 transitions. [2020-04-18 20:20:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-04-18 20:20:53,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 20:20:53,922 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:20:53,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:20:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1051494560, now seen corresponding path program 2 times [2020-04-18 20:20:53,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:20:53,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925368388] [2020-04-18 20:20:53,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:20:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:20:53,968 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:20:53,968 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:20:53,969 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:20:53,969 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:20:53,970 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-04-18 20:20:53,980 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,981 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,981 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,981 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,981 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,981 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,982 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,982 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,982 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,982 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,982 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,982 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,982 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,984 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,984 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,984 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,984 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,984 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,985 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,985 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,985 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,986 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,986 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,986 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,986 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,986 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,986 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,987 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,987 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,987 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,987 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,987 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,987 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,988 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,988 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,988 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,988 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,988 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,989 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,989 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,998 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,998 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:53,998 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,000 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,000 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,000 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,001 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,001 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,003 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,003 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,003 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,003 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,003 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,006 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,006 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,006 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,006 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,006 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:20:54,012 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:20:54,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:20:54,013 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:20:54,013 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:20:54,013 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:20:54,013 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:20:54,013 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:20:54,014 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:20:54,014 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:20:54,017 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 99 transitions, 258 flow Received shutdown request... [2020-04-18 20:24:41,809 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 20:24:41,819 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 20:24:41,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:24:41 BasicIcfg [2020-04-18 20:24:41,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:24:41,821 INFO L168 Benchmark]: Toolchain (without parser) took 259067.92 ms. Allocated memory was 145.2 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 101.0 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-04-18 20:24:41,828 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 20:24:41,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.07 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.0 MB in the beginning and 160.0 MB in the end (delta: -61.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:24:41,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.06 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:24:41,834 INFO L168 Benchmark]: Boogie Preprocessor took 39.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:24:41,836 INFO L168 Benchmark]: RCFGBuilder took 502.15 ms. Allocated memory is still 203.4 MB. Free memory was 156.0 MB in the beginning and 133.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:24:41,836 INFO L168 Benchmark]: TraceAbstraction took 257616.84 ms. Allocated memory was 203.4 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 133.8 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2020-04-18 20:24:41,844 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 816.07 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.0 MB in the beginning and 160.0 MB in the end (delta: -61.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.06 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 502.15 ms. Allocated memory is still 203.4 MB. Free memory was 156.0 MB in the beginning and 133.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257616.84 ms. Allocated memory was 203.4 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 133.8 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 678]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 678). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 99 places, 99 transitions, 258 flow. Already constructed 348349 states. Currently 19095 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 5 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 257.3s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 239.2s, HoareTripleCheckerStatistics: 776 SDtfs, 288 SDslu, 1073 SDs, 0 SdLazy, 150 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 274 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75798occurred 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: 8.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 12748 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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