/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix051_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:33:42,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:33:42,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:33:42,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:33:42,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:33:42,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:33:42,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:33:42,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:33:42,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:33:42,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:33:42,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:33:42,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:33:42,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:33:42,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:33:42,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:33:42,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:33:42,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:33:42,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:33:42,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:33:42,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:33:42,746 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-PN-NoLbe.epf [2022-09-16 11:33:42,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:33:42,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:33:42,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:33:42,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:33:42,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:33:42,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:33:42,789 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:33:42,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:33:42,789 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:33:42,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:33:42,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:33:42,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:33:42,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:33:42,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:33:42,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:33:42,791 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:33:42,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:33:42,791 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:33:42,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:33:42,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:33:42,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:33:42,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:33:42,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:33:42,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:42,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:33:42,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:33:42,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:33:42,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:33:42,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:33:42,794 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:33:42,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:33:42,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:33:43,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:33:43,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:33:43,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:33:43,050 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:33:43,051 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:33:43,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix051_tso.oepc.i [2022-09-16 11:33:43,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8b3a1c4/355e0a9152c54d43b5366ad33cc4a66b/FLAGa0ad28ac3 [2022-09-16 11:33:43,532 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:33:43,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_tso.oepc.i [2022-09-16 11:33:43,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8b3a1c4/355e0a9152c54d43b5366ad33cc4a66b/FLAGa0ad28ac3 [2022-09-16 11:33:43,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8b3a1c4/355e0a9152c54d43b5366ad33cc4a66b [2022-09-16 11:33:43,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:33:43,566 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:33:43,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:43,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:33:43,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:33:43,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:43" (1/1) ... [2022-09-16 11:33:43,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7d0b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:43, skipping insertion in model container [2022-09-16 11:33:43,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:43" (1/1) ... [2022-09-16 11:33:43,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:33:43,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:33:43,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_tso.oepc.i[949,962] [2022-09-16 11:33:44,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:44,057 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:33:44,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_tso.oepc.i[949,962] [2022-09-16 11:33:44,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:44,173 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:33:44,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44 WrapperNode [2022-09-16 11:33:44,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:44,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:44,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:33:44,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:33:44,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,240 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 293 [2022-09-16 11:33:44,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:44,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:33:44,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:33:44,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:33:44,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:33:44,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:33:44,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:33:44,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:33:44,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (1/1) ... [2022-09-16 11:33:44,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:44,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:33:44,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:33:44,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:33:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:33:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:33:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:33:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:33:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:33:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:33:44,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:33:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:33:44,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:33:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:33:44,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:33:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:33:44,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:33:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:33:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:33:44,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:33:44,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:33:44,343 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:33:44,465 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:33:44,467 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:33:45,009 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:33:45,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:33:45,409 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:33:45,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:45 BoogieIcfgContainer [2022-09-16 11:33:45,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:33:45,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:33:45,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:33:45,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:33:45,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:33:43" (1/3) ... [2022-09-16 11:33:45,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef70e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:45, skipping insertion in model container [2022-09-16 11:33:45,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:44" (2/3) ... [2022-09-16 11:33:45,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef70e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:45, skipping insertion in model container [2022-09-16 11:33:45,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:45" (3/3) ... [2022-09-16 11:33:45,419 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_tso.oepc.i [2022-09-16 11:33:45,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:33:45,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:33:45,439 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:33:45,508 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:33:45,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 142 transitions, 304 flow [2022-09-16 11:33:45,622 INFO L130 PetriNetUnfolder]: 2/138 cut-off events. [2022-09-16 11:33:45,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:45,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 2/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-09-16 11:33:45,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 142 transitions, 304 flow [2022-09-16 11:33:45,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 138 transitions, 288 flow [2022-09-16 11:33:45,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:33:45,658 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14d6d95f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:33:45,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:33:45,704 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-09-16 11:33:45,704 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:45,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:45,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:45,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:45,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:45,714 INFO L85 PathProgramCache]: Analyzing trace with hash -107603527, now seen corresponding path program 1 times [2022-09-16 11:33:45,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:45,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085958105] [2022-09-16 11:33:45,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:45,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:46,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:46,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085958105] [2022-09-16 11:33:46,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085958105] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:46,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:46,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:33:46,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035470587] [2022-09-16 11:33:46,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:46,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:33:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:46,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:33:46,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:33:46,093 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 142 [2022-09-16 11:33:46,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 138 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:46,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:46,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 142 [2022-09-16 11:33:46,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:48,512 INFO L130 PetriNetUnfolder]: 4695/15353 cut-off events. [2022-09-16 11:33:48,512 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-09-16 11:33:48,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22176 conditions, 15353 events. 4695/15353 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 179079 event pairs, 3128 based on Foata normal form. 537/12818 useless extension candidates. Maximal degree in co-relation 22119. Up to 6284 conditions per place. [2022-09-16 11:33:48,712 INFO L137 encePairwiseOnDemand]: 127/142 looper letters, 35 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2022-09-16 11:33:48,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 150 transitions, 401 flow [2022-09-16 11:33:48,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:33:48,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:33:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-09-16 11:33:48,726 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9248826291079812 [2022-09-16 11:33:48,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-09-16 11:33:48,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-09-16 11:33:48,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:48,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-09-16 11:33:48,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:48,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:48,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:48,742 INFO L175 Difference]: Start difference. First operand has 149 places, 138 transitions, 288 flow. Second operand 3 states and 394 transitions. [2022-09-16 11:33:48,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 150 transitions, 401 flow [2022-09-16 11:33:48,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 150 transitions, 394 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:33:48,750 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 325 flow [2022-09-16 11:33:48,752 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2022-09-16 11:33:48,755 INFO L287 CegarLoopForPetriNet]: 149 programPoint places, -2 predicate places. [2022-09-16 11:33:48,756 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 325 flow [2022-09-16 11:33:48,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:48,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:48,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:48,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:33:48,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:48,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:48,758 INFO L85 PathProgramCache]: Analyzing trace with hash 485002720, now seen corresponding path program 1 times [2022-09-16 11:33:48,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:48,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072832101] [2022-09-16 11:33:48,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:48,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:48,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:48,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072832101] [2022-09-16 11:33:48,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072832101] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:48,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:48,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:48,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64777595] [2022-09-16 11:33:48,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:48,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:48,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:48,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:48,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:48,877 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 142 [2022-09-16 11:33:48,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 325 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:48,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:48,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 142 [2022-09-16 11:33:48,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:50,368 INFO L130 PetriNetUnfolder]: 2895/9149 cut-off events. [2022-09-16 11:33:50,368 INFO L131 PetriNetUnfolder]: For 428/428 co-relation queries the response was YES. [2022-09-16 11:33:50,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15838 conditions, 9149 events. 2895/9149 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 96832 event pairs, 1118 based on Foata normal form. 0/7656 useless extension candidates. Maximal degree in co-relation 15782. Up to 2292 conditions per place. [2022-09-16 11:33:50,447 INFO L137 encePairwiseOnDemand]: 129/142 looper letters, 45 selfloop transitions, 13 changer transitions 0/168 dead transitions. [2022-09-16 11:33:50,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 168 transitions, 525 flow [2022-09-16 11:33:50,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 518 transitions. [2022-09-16 11:33:50,452 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9119718309859155 [2022-09-16 11:33:50,453 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 518 transitions. [2022-09-16 11:33:50,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 518 transitions. [2022-09-16 11:33:50,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:50,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 518 transitions. [2022-09-16 11:33:50,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:50,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:50,460 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:50,460 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 325 flow. Second operand 4 states and 518 transitions. [2022-09-16 11:33:50,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 168 transitions, 525 flow [2022-09-16 11:33:50,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 168 transitions, 520 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:33:50,468 INFO L231 Difference]: Finished difference. Result has 151 places, 147 transitions, 423 flow [2022-09-16 11:33:50,469 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=423, PETRI_PLACES=151, PETRI_TRANSITIONS=147} [2022-09-16 11:33:50,470 INFO L287 CegarLoopForPetriNet]: 149 programPoint places, 2 predicate places. [2022-09-16 11:33:50,470 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 147 transitions, 423 flow [2022-09-16 11:33:50,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:50,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:50,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:50,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:33:50,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 485002721, now seen corresponding path program 1 times [2022-09-16 11:33:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:50,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53424449] [2022-09-16 11:33:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:50,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:50,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:50,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53424449] [2022-09-16 11:33:50,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53424449] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:50,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:50,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:50,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105534366] [2022-09-16 11:33:50,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:50,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:50,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:50,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:50,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:50,577 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 142 [2022-09-16 11:33:50,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 147 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:50,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:50,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 142 [2022-09-16 11:33:50,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:51,455 INFO L130 PetriNetUnfolder]: 1421/5426 cut-off events. [2022-09-16 11:33:51,455 INFO L131 PetriNetUnfolder]: For 3303/3303 co-relation queries the response was YES. [2022-09-16 11:33:51,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9464 conditions, 5426 events. 1421/5426 cut-off events. For 3303/3303 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 54148 event pairs, 771 based on Foata normal form. 431/5398 useless extension candidates. Maximal degree in co-relation 9405. Up to 1726 conditions per place. [2022-09-16 11:33:51,502 INFO L137 encePairwiseOnDemand]: 133/142 looper letters, 35 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2022-09-16 11:33:51,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 150 transitions, 475 flow [2022-09-16 11:33:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:51,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2022-09-16 11:33:51,505 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8732394366197183 [2022-09-16 11:33:51,506 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 496 transitions. [2022-09-16 11:33:51,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 496 transitions. [2022-09-16 11:33:51,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:51,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 496 transitions. [2022-09-16 11:33:51,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:51,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:51,512 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:51,512 INFO L175 Difference]: Start difference. First operand has 151 places, 147 transitions, 423 flow. Second operand 4 states and 496 transitions. [2022-09-16 11:33:51,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 150 transitions, 475 flow [2022-09-16 11:33:51,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 452 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-09-16 11:33:51,529 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 354 flow [2022-09-16 11:33:51,530 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=354, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2022-09-16 11:33:51,532 INFO L287 CegarLoopForPetriNet]: 149 programPoint places, -2 predicate places. [2022-09-16 11:33:51,532 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 354 flow [2022-09-16 11:33:51,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:51,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:51,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:51,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:33:51,533 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1019894649, now seen corresponding path program 1 times [2022-09-16 11:33:51,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485585770] [2022-09-16 11:33:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:51,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:51,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485585770] [2022-09-16 11:33:51,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485585770] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:51,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:51,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:33:51,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930637457] [2022-09-16 11:33:51,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:51,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:33:51,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:51,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:33:51,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:33:51,678 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 142 [2022-09-16 11:33:51,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:51,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:51,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 142 [2022-09-16 11:33:51,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:52,255 INFO L130 PetriNetUnfolder]: 1187/3056 cut-off events. [2022-09-16 11:33:52,256 INFO L131 PetriNetUnfolder]: For 1155/1155 co-relation queries the response was YES. [2022-09-16 11:33:52,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5990 conditions, 3056 events. 1187/3056 cut-off events. For 1155/1155 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 24404 event pairs, 213 based on Foata normal form. 0/2941 useless extension candidates. Maximal degree in co-relation 5932. Up to 661 conditions per place. [2022-09-16 11:33:52,274 INFO L137 encePairwiseOnDemand]: 133/142 looper letters, 46 selfloop transitions, 13 changer transitions 4/173 dead transitions. [2022-09-16 11:33:52,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 173 transitions, 576 flow [2022-09-16 11:33:52,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:33:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:33:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2022-09-16 11:33:52,277 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8971830985915493 [2022-09-16 11:33:52,277 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2022-09-16 11:33:52,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2022-09-16 11:33:52,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:52,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2022-09-16 11:33:52,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:52,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:52,281 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:52,281 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 354 flow. Second operand 5 states and 637 transitions. [2022-09-16 11:33:52,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 173 transitions, 576 flow [2022-09-16 11:33:52,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 173 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:33:52,286 INFO L231 Difference]: Finished difference. Result has 150 places, 139 transitions, 390 flow [2022-09-16 11:33:52,286 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=390, PETRI_PLACES=150, PETRI_TRANSITIONS=139} [2022-09-16 11:33:52,287 INFO L287 CegarLoopForPetriNet]: 149 programPoint places, 1 predicate places. [2022-09-16 11:33:52,287 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 139 transitions, 390 flow [2022-09-16 11:33:52,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:52,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:52,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:52,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:33:52,288 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash -948675558, now seen corresponding path program 1 times [2022-09-16 11:33:52,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:52,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815914081] [2022-09-16 11:33:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:52,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:52,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:52,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815914081] [2022-09-16 11:33:52,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815914081] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:52,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:52,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:33:52,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14212189] [2022-09-16 11:33:52,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:52,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:33:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:33:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:33:52,422 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 142 [2022-09-16 11:33:52,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 139 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:52,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:52,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 142 [2022-09-16 11:33:52,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:52,975 INFO L130 PetriNetUnfolder]: 1160/3622 cut-off events. [2022-09-16 11:33:52,976 INFO L131 PetriNetUnfolder]: For 2228/2228 co-relation queries the response was YES. [2022-09-16 11:33:52,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7122 conditions, 3622 events. 1160/3622 cut-off events. For 2228/2228 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 31265 event pairs, 301 based on Foata normal form. 16/3498 useless extension candidates. Maximal degree in co-relation 7063. Up to 661 conditions per place. [2022-09-16 11:33:52,997 INFO L137 encePairwiseOnDemand]: 133/142 looper letters, 0 selfloop transitions, 0 changer transitions 165/165 dead transitions. [2022-09-16 11:33:52,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 165 transitions, 540 flow [2022-09-16 11:33:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:33:52,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:33:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 743 transitions. [2022-09-16 11:33:53,000 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8720657276995305 [2022-09-16 11:33:53,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 743 transitions. [2022-09-16 11:33:53,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 743 transitions. [2022-09-16 11:33:53,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:53,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 743 transitions. [2022-09-16 11:33:53,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:53,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:53,005 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:53,005 INFO L175 Difference]: Start difference. First operand has 150 places, 139 transitions, 390 flow. Second operand 6 states and 743 transitions. [2022-09-16 11:33:53,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 165 transitions, 540 flow [2022-09-16 11:33:53,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 165 transitions, 485 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:33:53,015 INFO L231 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2022-09-16 11:33:53,015 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2022-09-16 11:33:53,015 INFO L287 CegarLoopForPetriNet]: 149 programPoint places, -4 predicate places. [2022-09-16 11:33:53,016 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2022-09-16 11:33:53,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:53,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:33:53,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:33:53,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:33:53,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:33:53,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:33:53,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:33:53,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:33:53,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:33:53,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:33:53,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:33:53,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:33:53,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:33:53,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:33:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:33:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:33:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:33:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:33:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:33:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:33:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:33:53,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:33:53,023 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:33:53,030 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:33:53,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:33:53,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:33:53 BasicIcfg [2022-09-16 11:33:53,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:33:53,036 INFO L158 Benchmark]: Toolchain (without parser) took 9469.97ms. Allocated memory was 164.6MB in the beginning and 1.1GB in the end (delta: 893.4MB). Free memory was 109.7MB in the beginning and 474.3MB in the end (delta: -364.5MB). Peak memory consumption was 530.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:53,038 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 164.6MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:33:53,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.40ms. Allocated memory is still 164.6MB. Free memory was 109.6MB in the beginning and 127.8MB in the end (delta: -18.2MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. [2022-09-16 11:33:53,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.29ms. Allocated memory is still 164.6MB. Free memory was 127.8MB in the beginning and 125.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:53,040 INFO L158 Benchmark]: Boogie Preprocessor took 42.70ms. Allocated memory is still 164.6MB. Free memory was 125.1MB in the beginning and 122.6MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:53,040 INFO L158 Benchmark]: RCFGBuilder took 1126.60ms. Allocated memory is still 164.6MB. Free memory was 122.6MB in the beginning and 74.3MB in the end (delta: 48.3MB). Peak memory consumption was 53.9MB. Max. memory is 8.0GB. [2022-09-16 11:33:53,040 INFO L158 Benchmark]: TraceAbstraction took 7622.30ms. Allocated memory was 164.6MB in the beginning and 1.1GB in the end (delta: 893.4MB). Free memory was 73.3MB in the beginning and 474.3MB in the end (delta: -401.0MB). Peak memory consumption was 492.9MB. Max. memory is 8.0GB. [2022-09-16 11:33:53,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 164.6MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 607.40ms. Allocated memory is still 164.6MB. Free memory was 109.6MB in the beginning and 127.8MB in the end (delta: -18.2MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.29ms. Allocated memory is still 164.6MB. Free memory was 127.8MB in the beginning and 125.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.70ms. Allocated memory is still 164.6MB. Free memory was 125.1MB in the beginning and 122.6MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1126.60ms. Allocated memory is still 164.6MB. Free memory was 122.6MB in the beginning and 74.3MB in the end (delta: 48.3MB). Peak memory consumption was 53.9MB. Max. memory is 8.0GB. * TraceAbstraction took 7622.30ms. Allocated memory was 164.6MB in the beginning and 1.1GB in the end (delta: 893.4MB). Free memory was 73.3MB in the beginning and 474.3MB in the end (delta: -401.0MB). Peak memory consumption was 492.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 17 mSDtfsCounter, 299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=423occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:33:53,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...