/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-ext/46_monabsex2_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:25:22,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:25:22,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:25:22,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:25:22,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:25:22,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:25:22,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:25:22,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:25:22,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:25:22,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:25:22,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:25:22,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:25:22,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:25:22,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:25:22,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:25:22,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:25:22,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:25:22,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:25:22,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:25:22,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:25:22,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:25:22,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:25:22,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:25:22,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:25:22,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:25:22,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:25:22,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:25:22,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:25:22,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:25:22,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:25:22,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:25:22,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:25:22,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:25:22,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:25:22,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:25:22,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:25:22,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:25:22,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:25:22,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:25:22,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:25:22,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:25:22,337 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 16:25:22,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:25:22,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:25:22,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:25:22,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:25:22,353 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:25:22,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:25:22,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:25:22,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:25:22,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:25:22,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:25:22,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:25:22,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:25:22,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:25:22,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:25:22,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:25:22,355 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:25:22,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:25:22,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:25:22,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:25:22,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:25:22,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:25:22,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:25:22,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:25:22,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:25:22,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:25:22,357 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:25:22,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:25:22,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:25:22,358 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:25:22,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:25:22,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:25:22,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:25:22,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:25:22,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:25:22,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:25:22,663 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:25:22,664 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2020-04-18 16:25:22,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00783e2b/c98e314524284da6ad29c3c3cc66ce87/FLAGd0d5ba79d [2020-04-18 16:25:23,308 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:25:23,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2020-04-18 16:25:23,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00783e2b/c98e314524284da6ad29c3c3cc66ce87/FLAGd0d5ba79d [2020-04-18 16:25:23,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00783e2b/c98e314524284da6ad29c3c3cc66ce87 [2020-04-18 16:25:23,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:25:23,628 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:25:23,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:25:23,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:25:23,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:25:23,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:25:23" (1/1) ... [2020-04-18 16:25:23,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105268d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:23, skipping insertion in model container [2020-04-18 16:25:23,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:25:23" (1/1) ... [2020-04-18 16:25:23,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:25:23,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:25:24,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:25:24,237 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:25:24,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:25:24,398 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:25:24,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24 WrapperNode [2020-04-18 16:25:24,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:25:24,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:25:24,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:25:24,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:25:24,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:25:24,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:25:24,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:25:24,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:25:24,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (1/1) ... [2020-04-18 16:25:24,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:25:24,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:25:24,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:25:24,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:25:24,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (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 16:25:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 16:25:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 16:25:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:25:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:25:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:25:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:25:24,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:25:24,543 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 16:25:24,855 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:25:24,855 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-04-18 16:25:24,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:25:24 BoogieIcfgContainer [2020-04-18 16:25:24,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:25:24,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:25:24,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:25:24,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:25:24,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:25:23" (1/3) ... [2020-04-18 16:25:24,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9a9352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:25:24, skipping insertion in model container [2020-04-18 16:25:24,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:25:24" (2/3) ... [2020-04-18 16:25:24,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9a9352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:25:24, skipping insertion in model container [2020-04-18 16:25:24,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:25:24" (3/3) ... [2020-04-18 16:25:24,868 INFO L109 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2020-04-18 16:25:24,879 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:25:24,879 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:25:24,887 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 16:25:24,888 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:25:24,909 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,910 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,910 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,911 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,912 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,912 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,916 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,917 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,917 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:24,938 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 16:25:24,959 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:25:24,960 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:25:24,960 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:25:24,960 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:25:24,960 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:25:24,961 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:25:24,961 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:25:24,961 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:25:24,972 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 28 transitions, 61 flow [2020-04-18 16:25:24,989 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 106 states. [2020-04-18 16:25:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-04-18 16:25:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:25,000 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:25,001 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:25,002 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 16:25:25,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,008 INFO L82 PathProgramCache]: Analyzing trace with hash -395364706, now seen corresponding path program 1 times [2020-04-18 16:25:25,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:25,015 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [398851120] [2020-04-18 16:25:25,027 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:25,039 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-04-18 16:25:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:25,042 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:25,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,043 INFO L82 PathProgramCache]: Analyzing trace with hash -395364706, now seen corresponding path program 2 times [2020-04-18 16:25:25,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:25,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747512328] [2020-04-18 16:25:25,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:25,313 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 16:25:25,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747512328] [2020-04-18 16:25:25,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:25,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:25,317 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:25,318 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:25,322 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:25,322 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:25,330 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:25:25,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:25,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:25,336 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-04-18 16:25:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:25,341 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-04-18 16:25:25,342 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-04-18 16:25:25,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:25:25,343 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [398851120] [2020-04-18 16:25:25,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:25:25,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:25:25,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [398851120] [2020-04-18 16:25:25,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:25:25,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:25:25,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:25,352 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2020-04-18 16:25:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:25,365 INFO L93 Difference]: Finished difference Result 46 states and 69 transitions. [2020-04-18 16:25:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:25:25,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-04-18 16:25:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:25:25,376 INFO L225 Difference]: With dead ends: 46 [2020-04-18 16:25:25,377 INFO L226 Difference]: Without dead ends: 46 [2020-04-18 16:25:25,379 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-04-18 16:25:25,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-04-18 16:25:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-04-18 16:25:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2020-04-18 16:25:25,414 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 14 [2020-04-18 16:25:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:25:25,415 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2020-04-18 16:25:25,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:25:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2020-04-18 16:25:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 16:25:25,416 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:25,416 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:25,417 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 16:25:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,417 INFO L82 PathProgramCache]: Analyzing trace with hash 627905184, now seen corresponding path program 1 times [2020-04-18 16:25:25,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:25,418 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1035060022] [2020-04-18 16:25:25,418 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:25,419 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-04-18 16:25:25,420 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 16:25:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 16:25:25,420 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,421 INFO L82 PathProgramCache]: Analyzing trace with hash 627905184, now seen corresponding path program 2 times [2020-04-18 16:25:25,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:25,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127076143] [2020-04-18 16:25:25,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:25,484 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 16:25:25,484 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 16:25:25,484 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 16:25:25,486 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 16:25:25,486 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 16:25:25,494 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,495 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,495 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,495 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,496 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,496 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,496 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,497 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,497 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,497 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,498 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,498 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,499 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,499 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,509 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 16:25:25,510 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:25:25,510 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:25:25,510 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:25:25,510 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:25:25,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:25:25,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:25:25,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:25:25,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:25:25,513 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 88 flow [2020-04-18 16:25:25,573 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 907 states. [2020-04-18 16:25:25,574 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2020-04-18 16:25:25,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:25,575 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:25,575 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:25,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:25:25,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,576 INFO L82 PathProgramCache]: Analyzing trace with hash -489840098, now seen corresponding path program 1 times [2020-04-18 16:25:25,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:25,576 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1546877427] [2020-04-18 16:25:25,577 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:25,578 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-04-18 16:25:25,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:25,579 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:25,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,580 INFO L82 PathProgramCache]: Analyzing trace with hash -489840098, now seen corresponding path program 2 times [2020-04-18 16:25:25,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:25,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594753697] [2020-04-18 16:25:25,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:25,651 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 16:25:25,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594753697] [2020-04-18 16:25:25,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:25,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:25,652 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:25,654 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:25,656 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:25,656 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:25,668 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:25:25,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:25,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:25,669 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-04-18 16:25:25,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:25,671 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-04-18 16:25:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-04-18 16:25:25,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:25:25,675 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1546877427] [2020-04-18 16:25:25,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:25:25,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:25:25,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1546877427] [2020-04-18 16:25:25,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:25:25,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:25:25,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:25,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:25,678 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2020-04-18 16:25:25,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:25,721 INFO L93 Difference]: Finished difference Result 344 states and 827 transitions. [2020-04-18 16:25:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:25:25,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-04-18 16:25:25,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:25:25,731 INFO L225 Difference]: With dead ends: 344 [2020-04-18 16:25:25,731 INFO L226 Difference]: Without dead ends: 344 [2020-04-18 16:25:25,732 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:25,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-04-18 16:25:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2020-04-18 16:25:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-04-18 16:25:25,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 827 transitions. [2020-04-18 16:25:25,815 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 827 transitions. Word has length 14 [2020-04-18 16:25:25,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:25:25,816 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 827 transitions. [2020-04-18 16:25:25,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:25:25,816 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 827 transitions. [2020-04-18 16:25:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 16:25:25,818 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:25,818 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:25,818 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:25:25,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1597502585, now seen corresponding path program 1 times [2020-04-18 16:25:25,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:25,819 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [373073098] [2020-04-18 16:25:25,820 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:25,821 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-04-18 16:25:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-04-18 16:25:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 16:25:25,822 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:25,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:25,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1597502585, now seen corresponding path program 2 times [2020-04-18 16:25:25,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:25,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074853495] [2020-04-18 16:25:25,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:25,883 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 16:25:25,883 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 16:25:25,884 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 16:25:25,884 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 16:25:25,886 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 16:25:25,896 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,896 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,896 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,896 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,897 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,897 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,898 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,898 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,898 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,900 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,901 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,901 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,901 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,902 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,902 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,902 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,902 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,902 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,903 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,903 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,903 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,903 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,905 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,906 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,906 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,906 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:25,918 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 16:25:25,918 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:25:25,918 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:25:25,918 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:25:25,919 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:25:25,919 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:25:25,919 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:25:25,919 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:25:25,919 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:25:25,922 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 48 transitions, 117 flow [2020-04-18 16:25:26,557 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8116 states. [2020-04-18 16:25:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 8116 states. [2020-04-18 16:25:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:26,564 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:26,564 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:26,564 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:25:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:26,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1513462923, now seen corresponding path program 1 times [2020-04-18 16:25:26,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:26,565 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1125678703] [2020-04-18 16:25:26,566 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:26,567 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:26,567 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-04-18 16:25:26,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:26,568 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:26,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:26,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1513462923, now seen corresponding path program 2 times [2020-04-18 16:25:26,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:26,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417296209] [2020-04-18 16:25:26,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:26,641 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 16:25:26,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417296209] [2020-04-18 16:25:26,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:26,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:26,643 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:26,644 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:26,647 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:26,647 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:26,653 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:25:26,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:26,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:26,701 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-04-18 16:25:26,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:26,702 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-04-18 16:25:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-04-18 16:25:26,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:25:26,703 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1125678703] [2020-04-18 16:25:26,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:25:26,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:25:26,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1125678703] [2020-04-18 16:25:26,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:25:26,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:25:26,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:26,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:26,705 INFO L87 Difference]: Start difference. First operand 8116 states. Second operand 3 states. [2020-04-18 16:25:26,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:26,807 INFO L93 Difference]: Finished difference Result 3168 states and 10471 transitions. [2020-04-18 16:25:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:25:26,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-04-18 16:25:26,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:25:26,851 INFO L225 Difference]: With dead ends: 3168 [2020-04-18 16:25:26,851 INFO L226 Difference]: Without dead ends: 3168 [2020-04-18 16:25:26,852 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2020-04-18 16:25:27,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 3168. [2020-04-18 16:25:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3168 states. [2020-04-18 16:25:27,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 10471 transitions. [2020-04-18 16:25:27,050 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 10471 transitions. Word has length 14 [2020-04-18 16:25:27,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:25:27,051 INFO L479 AbstractCegarLoop]: Abstraction has 3168 states and 10471 transitions. [2020-04-18 16:25:27,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:25:27,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 10471 transitions. [2020-04-18 16:25:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:25:27,055 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:27,055 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] [2020-04-18 16:25:27,056 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:25:27,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:27,056 INFO L82 PathProgramCache]: Analyzing trace with hash 876305141, now seen corresponding path program 1 times [2020-04-18 16:25:27,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:27,057 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [167931113] [2020-04-18 16:25:27,058 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:27,059 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 78 transitions. [2020-04-18 16:25:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-04-18 16:25:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:25:27,063 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:27,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:27,064 INFO L82 PathProgramCache]: Analyzing trace with hash 876305141, now seen corresponding path program 2 times [2020-04-18 16:25:27,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:27,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821058241] [2020-04-18 16:25:27,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 16:25:27,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821058241] [2020-04-18 16:25:27,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:27,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:27,152 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:27,153 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:27,157 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 62 transitions. [2020-04-18 16:25:27,157 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:27,182 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:25:27,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:27,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:27,183 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2020-04-18 16:25:27,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:27,196 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions. [2020-04-18 16:25:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2020-04-18 16:25:27,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:25:27,197 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:25:27,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:27,198 INFO L82 PathProgramCache]: Analyzing trace with hash 880121111, now seen corresponding path program 3 times [2020-04-18 16:25:27,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:27,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757955762] [2020-04-18 16:25:27,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:27,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:25:27,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757955762] [2020-04-18 16:25:27,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:27,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:27,247 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:27,249 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:27,254 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-04-18 16:25:27,254 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:27,283 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 16:25:27,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:25:27,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:25:27,284 INFO L87 Difference]: Start difference. First operand 55 states and 82 transitions. Second operand 4 states. [2020-04-18 16:25:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:27,303 INFO L93 Difference]: Finished difference Result 57 states and 83 transitions. [2020-04-18 16:25:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2020-04-18 16:25:27,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:25:27,304 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [167931113] [2020-04-18 16:25:27,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:25:27,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:25:27,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [167931113] [2020-04-18 16:25:27,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 16:25:27,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:25:27,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 16:25:27,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:25:27,306 INFO L87 Difference]: Start difference. First operand 3168 states and 10471 transitions. Second operand 5 states. [2020-04-18 16:25:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:27,392 INFO L93 Difference]: Finished difference Result 1950 states and 6377 transitions. [2020-04-18 16:25:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 16:25:27,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-04-18 16:25:27,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:25:27,411 INFO L225 Difference]: With dead ends: 1950 [2020-04-18 16:25:27,412 INFO L226 Difference]: Without dead ends: 1950 [2020-04-18 16:25:27,412 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:25:27,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2020-04-18 16:25:27,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1950. [2020-04-18 16:25:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2020-04-18 16:25:27,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 6377 transitions. [2020-04-18 16:25:27,561 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 6377 transitions. Word has length 22 [2020-04-18 16:25:27,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:25:27,562 INFO L479 AbstractCegarLoop]: Abstraction has 1950 states and 6377 transitions. [2020-04-18 16:25:27,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 16:25:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 6377 transitions. [2020-04-18 16:25:27,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 16:25:27,563 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:27,563 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:27,564 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:25:27,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:27,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1520303663, now seen corresponding path program 1 times [2020-04-18 16:25:27,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:27,565 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [395879915] [2020-04-18 16:25:27,565 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:27,566 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-04-18 16:25:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-04-18 16:25:27,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-04-18 16:25:27,567 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:27,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:27,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1520303663, now seen corresponding path program 2 times [2020-04-18 16:25:27,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:27,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178606931] [2020-04-18 16:25:27,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:27,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 16:25:27,616 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 16:25:27,616 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 16:25:27,617 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 16:25:27,617 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 16:25:27,630 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,630 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,630 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,630 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,631 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,633 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,633 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,633 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,634 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,634 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,635 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,635 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,637 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,637 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,637 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,637 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,638 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,639 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,640 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,640 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,640 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,640 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,641 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,641 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,642 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,642 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,643 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,643 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,645 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,646 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,646 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,646 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,654 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,654 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,654 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,654 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,657 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,657 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,657 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,658 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:27,659 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 16:25:27,660 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:25:27,660 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:25:27,660 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:25:27,660 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:25:27,660 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:25:27,660 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:25:27,660 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:25:27,661 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:25:27,664 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 58 transitions, 148 flow [2020-04-18 16:25:46,586 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 72997 states. [2020-04-18 16:25:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 72997 states. [2020-04-18 16:25:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:46,587 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:46,587 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:46,588 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 16:25:46,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:46,588 INFO L82 PathProgramCache]: Analyzing trace with hash 828751989, now seen corresponding path program 1 times [2020-04-18 16:25:46,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:46,589 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [655002043] [2020-04-18 16:25:46,589 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:46,590 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:46,590 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-04-18 16:25:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 16:25:46,591 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:46,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:46,591 INFO L82 PathProgramCache]: Analyzing trace with hash 828751989, now seen corresponding path program 2 times [2020-04-18 16:25:46,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:46,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627290151] [2020-04-18 16:25:46,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:46,625 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 16:25:46,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627290151] [2020-04-18 16:25:46,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:46,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:46,626 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:46,627 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:46,628 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 16:25:46,628 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:46,632 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:25:46,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:46,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:46,633 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-04-18 16:25:46,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:46,635 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-04-18 16:25:46,635 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-04-18 16:25:46,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:25:46,635 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [655002043] [2020-04-18 16:25:46,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:25:46,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:25:46,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [655002043] [2020-04-18 16:25:46,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:25:46,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:25:46,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:46,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:46,637 INFO L87 Difference]: Start difference. First operand 72997 states. Second operand 3 states. [2020-04-18 16:25:47,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:47,972 INFO L93 Difference]: Finished difference Result 30196 states and 126907 transitions. [2020-04-18 16:25:47,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:25:47,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-04-18 16:25:47,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:25:48,201 INFO L225 Difference]: With dead ends: 30196 [2020-04-18 16:25:48,202 INFO L226 Difference]: Without dead ends: 30196 [2020-04-18 16:25:48,202 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:48,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30196 states. [2020-04-18 16:25:49,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30196 to 30196. [2020-04-18 16:25:49,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30196 states. [2020-04-18 16:25:49,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30196 states to 30196 states and 126907 transitions. [2020-04-18 16:25:49,913 INFO L78 Accepts]: Start accepts. Automaton has 30196 states and 126907 transitions. Word has length 14 [2020-04-18 16:25:49,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:25:49,913 INFO L479 AbstractCegarLoop]: Abstraction has 30196 states and 126907 transitions. [2020-04-18 16:25:49,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:25:49,914 INFO L276 IsEmpty]: Start isEmpty. Operand 30196 states and 126907 transitions. [2020-04-18 16:25:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:25:49,914 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:49,914 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] [2020-04-18 16:25:49,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 16:25:49,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:49,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1408900856, now seen corresponding path program 1 times [2020-04-18 16:25:49,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:49,916 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1136387151] [2020-04-18 16:25:49,917 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:49,918 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 78 transitions. [2020-04-18 16:25:49,918 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-04-18 16:25:49,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:25:49,919 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:49,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:49,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1408900856, now seen corresponding path program 2 times [2020-04-18 16:25:49,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:49,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847656494] [2020-04-18 16:25:49,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:25:49,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847656494] [2020-04-18 16:25:49,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:49,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:49,951 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:49,952 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:49,955 INFO L259 McrAutomatonBuilder]: Finished intersection with 43 states and 62 transitions. [2020-04-18 16:25:49,955 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:49,959 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:25:49,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:25:49,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:25:49,960 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2020-04-18 16:25:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:49,964 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions. [2020-04-18 16:25:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2020-04-18 16:25:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:25:49,965 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:25:49,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:49,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1459108714, now seen corresponding path program 3 times [2020-04-18 16:25:49,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:49,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401929305] [2020-04-18 16:25:49,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:25:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:25:50,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401929305] [2020-04-18 16:25:50,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:25:50,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:25:50,010 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:25:50,011 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:50,016 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-04-18 16:25:50,016 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:25:50,041 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 16:25:50,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:25:50,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:25:50,042 INFO L87 Difference]: Start difference. First operand 55 states and 82 transitions. Second operand 4 states. [2020-04-18 16:25:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:50,056 INFO L93 Difference]: Finished difference Result 57 states and 83 transitions. [2020-04-18 16:25:50,057 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2020-04-18 16:25:50,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:25:50,057 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1136387151] [2020-04-18 16:25:50,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:25:50,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:25:50,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1136387151] [2020-04-18 16:25:50,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 16:25:50,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:25:50,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 16:25:50,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:25:50,059 INFO L87 Difference]: Start difference. First operand 30196 states and 126907 transitions. Second operand 5 states. [2020-04-18 16:25:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:25:50,365 INFO L93 Difference]: Finished difference Result 13612 states and 56259 transitions. [2020-04-18 16:25:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 16:25:50,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-04-18 16:25:50,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:25:50,447 INFO L225 Difference]: With dead ends: 13612 [2020-04-18 16:25:50,447 INFO L226 Difference]: Without dead ends: 13612 [2020-04-18 16:25:50,447 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:25:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13612 states. [2020-04-18 16:25:50,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13612 to 13612. [2020-04-18 16:25:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13612 states. [2020-04-18 16:25:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13612 states to 13612 states and 56259 transitions. [2020-04-18 16:25:50,920 INFO L78 Accepts]: Start accepts. Automaton has 13612 states and 56259 transitions. Word has length 22 [2020-04-18 16:25:50,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:25:50,920 INFO L479 AbstractCegarLoop]: Abstraction has 13612 states and 56259 transitions. [2020-04-18 16:25:50,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 16:25:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 13612 states and 56259 transitions. [2020-04-18 16:25:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 16:25:50,924 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:25:50,924 INFO L425 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:25:50,925 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 16:25:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1372194238, now seen corresponding path program 1 times [2020-04-18 16:25:50,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:25:50,926 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1126063318] [2020-04-18 16:25:50,926 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:25:50,928 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 27 transitions. [2020-04-18 16:25:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-04-18 16:25:50,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 16:25:50,929 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:25:50,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:25:50,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1372194238, now seen corresponding path program 2 times [2020-04-18 16:25:50,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:25:50,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994949899] [2020-04-18 16:25:50,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:25:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:25:50,952 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 16:25:50,952 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 16:25:50,952 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 16:25:50,953 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 16:25:50,953 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-04-18 16:25:50,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,963 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,963 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,964 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,964 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,965 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,965 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,965 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,966 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,966 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,966 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,967 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,967 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,968 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,968 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,968 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,968 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,968 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,968 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,969 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,969 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,969 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,969 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,970 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,970 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,976 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,976 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,976 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,976 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,978 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,978 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,978 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,979 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,985 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,985 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,985 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,985 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,992 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,992 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,992 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,992 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:25:50,994 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-18 16:25:50,994 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:25:50,995 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:25:50,995 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:25:50,995 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:25:50,995 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:25:50,995 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:25:50,995 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:25:50,995 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:25:50,997 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 68 transitions, 181 flow Received shutdown request... [2020-04-18 16:29:53,864 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 16:29:53,869 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 16:29:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:29:53 BasicIcfg [2020-04-18 16:29:53,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:29:53,872 INFO L168 Benchmark]: Toolchain (without parser) took 270258.98 ms. Allocated memory was 145.2 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 99.8 MB in the beginning and 705.1 MB in the end (delta: -605.2 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2020-04-18 16:29:53,873 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 16:29:53,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.68 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 98.1 MB in the beginning and 162.4 MB in the end (delta: -64.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:29:53,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.72 ms. Allocated memory is still 203.4 MB. Free memory was 162.4 MB in the beginning and 160.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 16:29:53,875 INFO L168 Benchmark]: Boogie Preprocessor took 28.84 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 159.5 MB in the end (delta: 962.7 kB). Peak memory consumption was 962.7 kB. Max. memory is 7.1 GB. [2020-04-18 16:29:53,875 INFO L168 Benchmark]: RCFGBuilder took 376.22 ms. Allocated memory is still 203.4 MB. Free memory was 159.5 MB in the beginning and 143.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2020-04-18 16:29:53,877 INFO L168 Benchmark]: TraceAbstraction took 269009.14 ms. Allocated memory was 203.4 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 143.5 MB in the beginning and 705.1 MB in the end (delta: -561.6 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-04-18 16:29:53,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.68 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 98.1 MB in the beginning and 162.4 MB in the end (delta: -64.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.72 ms. Allocated memory is still 203.4 MB. Free memory was 162.4 MB in the beginning and 160.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.84 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 159.5 MB in the end (delta: 962.7 kB). Peak memory consumption was 962.7 kB. Max. memory is 7.1 GB. * RCFGBuilder took 376.22 ms. Allocated memory is still 203.4 MB. Free memory was 159.5 MB in the beginning and 143.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269009.14 ms. Allocated memory was 203.4 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 143.5 MB in the beginning and 705.1 MB in the end (delta: -561.6 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 677]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 677). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 73 places, 68 transitions, 181 flow. Already constructed 297519 states. Currently 53713 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 5 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 268.7s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 262.5s, HoareTripleCheckerStatistics: 219 SDtfs, 101 SDslu, 195 SDs, 0 SdLazy, 102 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72997occurred 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: 2.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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