/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 03:56:21,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 03:56:21,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 03:56:21,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 03:56:21,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 03:56:21,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 03:56:21,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 03:56:21,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 03:56:21,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 03:56:21,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 03:56:21,502 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 03:56:21,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 03:56:21,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 03:56:21,504 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 03:56:21,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 03:56:21,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 03:56:21,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 03:56:21,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 03:56:21,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 03:56:21,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 03:56:21,505 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 03:56:21,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 03:56:21,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 03:56:21,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 03:56:21,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 03:56:21,507 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 03:56:21,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 03:56:21,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:56:21,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 03:56:21,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 03:56:21,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 03:56:21,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 03:56:21,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 03:56:21,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 03:56:21,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 03:56:21,510 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 03:56:21,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 03:56:21,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 03:56:21,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 03:56:21,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 03:56:21,832 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 03:56:21,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 03:56:22,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 03:56:23,264 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 03:56:23,265 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 03:56:23,285 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118b83c5c/de67d14b6bd840049e8d735adcbd9517/FLAG6e44856cf [2023-08-27 03:56:23,300 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118b83c5c/de67d14b6bd840049e8d735adcbd9517 [2023-08-27 03:56:23,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 03:56:23,306 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 03:56:23,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 03:56:23,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 03:56:23,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 03:56:23,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476a887e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23, skipping insertion in model container [2023-08-27 03:56:23,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,366 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 03:56:23,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:56:23,680 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 03:56:23,697 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:56:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 03:56:23,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:56:23,742 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:56:23,742 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:56:23,749 INFO L206 MainTranslator]: Completed translation [2023-08-27 03:56:23,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23 WrapperNode [2023-08-27 03:56:23,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 03:56:23,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 03:56:23,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 03:56:23,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 03:56:23,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,812 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-08-27 03:56:23,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 03:56:23,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 03:56:23,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 03:56:23,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 03:56:23,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 03:56:23,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 03:56:23,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 03:56:23,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 03:56:23,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (1/1) ... [2023-08-27 03:56:23,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:56:23,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 03:56:23,878 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) [2023-08-27 03:56:23,881 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 [2023-08-27 03:56:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 03:56:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 03:56:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 03:56:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 03:56:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 03:56:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 03:56:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 03:56:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 03:56:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 03:56:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 03:56:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 03:56:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 03:56:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 03:56:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 03:56:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 03:56:23,912 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 03:56:24,018 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 03:56:24,019 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 03:56:24,158 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 03:56:24,180 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 03:56:24,181 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 03:56:24,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:56:24 BoogieIcfgContainer [2023-08-27 03:56:24,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 03:56:24,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 03:56:24,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 03:56:24,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 03:56:24,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:56:23" (1/3) ... [2023-08-27 03:56:24,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f24669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:56:24, skipping insertion in model container [2023-08-27 03:56:24,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:56:23" (2/3) ... [2023-08-27 03:56:24,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f24669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:56:24, skipping insertion in model container [2023-08-27 03:56:24,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:56:24" (3/3) ... [2023-08-27 03:56:24,192 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 03:56:24,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 03:56:24,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 03:56:24,209 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 03:56:24,300 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:56:24,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 93 transitions, 201 flow [2023-08-27 03:56:24,404 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-27 03:56:24,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:56:24,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-27 03:56:24,409 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 93 transitions, 201 flow [2023-08-27 03:56:24,413 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 90 transitions, 189 flow [2023-08-27 03:56:24,417 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:56:24,428 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 90 transitions, 189 flow [2023-08-27 03:56:24,431 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 90 transitions, 189 flow [2023-08-27 03:56:24,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 90 transitions, 189 flow [2023-08-27 03:56:24,463 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2023-08-27 03:56:24,463 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:56:24,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-27 03:56:24,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 2146 [2023-08-27 03:56:26,945 INFO L134 LiptonReduction]: Checked pairs total: 6040 [2023-08-27 03:56:26,945 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-08-27 03:56:26,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 03:56:26,962 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;@59c0791b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:56:26,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-27 03:56:26,964 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:56:26,965 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 03:56:26,965 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:56:26,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:26,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 03:56:26,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:26,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:26,970 INFO L85 PathProgramCache]: Analyzing trace with hash 335180553, now seen corresponding path program 1 times [2023-08-27 03:56:26,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:26,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508118413] [2023-08-27 03:56:26,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:26,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:27,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:27,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508118413] [2023-08-27 03:56:27,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508118413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:27,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:27,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:56:27,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779234754] [2023-08-27 03:56:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:27,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:56:27,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:56:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:56:27,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 180 [2023-08-27 03:56:27,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-08-27 03:56:27,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:27,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 180 [2023-08-27 03:56:27,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:27,485 INFO L124 PetriNetUnfolderBase]: 496/811 cut-off events. [2023-08-27 03:56:27,486 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 03:56:27,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 811 events. 496/811 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 3764 event pairs, 127 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 1644. Up to 710 conditions per place. [2023-08-27 03:56:27,500 INFO L140 encePairwiseOnDemand]: 169/180 looper letters, 30 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-27 03:56:27,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 155 flow [2023-08-27 03:56:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:56:27,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:56:27,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-27 03:56:27,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49444444444444446 [2023-08-27 03:56:27,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-27 03:56:27,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-27 03:56:27,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:27,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-27 03:56:27,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2023-08-27 03:56:27,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-08-27 03:56:27,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-08-27 03:56:27,525 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 3 states and 267 transitions. [2023-08-27 03:56:27,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 155 flow [2023-08-27 03:56:27,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 150 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 03:56:27,529 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 88 flow [2023-08-27 03:56:27,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-27 03:56:27,533 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-27 03:56:27,533 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 88 flow [2023-08-27 03:56:27,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-08-27 03:56:27,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:27,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:27,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 03:56:27,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:27,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash 278889120, now seen corresponding path program 1 times [2023-08-27 03:56:27,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:27,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391512040] [2023-08-27 03:56:27,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:27,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:27,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:27,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:27,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391512040] [2023-08-27 03:56:27,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391512040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:27,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:27,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:56:27,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611321214] [2023-08-27 03:56:27,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:27,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:56:27,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:56:27,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:56:27,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 180 [2023-08-27 03:56:27,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-27 03:56:27,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:27,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 180 [2023-08-27 03:56:27,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:28,037 INFO L124 PetriNetUnfolderBase]: 865/1488 cut-off events. [2023-08-27 03:56:28,037 INFO L125 PetriNetUnfolderBase]: For 211/252 co-relation queries the response was YES. [2023-08-27 03:56:28,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 1488 events. 865/1488 cut-off events. For 211/252 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 8355 event pairs, 326 based on Foata normal form. 0/1164 useless extension candidates. Maximal degree in co-relation 3744. Up to 765 conditions per place. [2023-08-27 03:56:28,048 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 37 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2023-08-27 03:56:28,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 46 transitions, 239 flow [2023-08-27 03:56:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:56:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:56:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-27 03:56:28,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4703703703703704 [2023-08-27 03:56:28,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-27 03:56:28,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-27 03:56:28,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:28,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-27 03:56:28,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2023-08-27 03:56:28,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-08-27 03:56:28,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-08-27 03:56:28,060 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 88 flow. Second operand 3 states and 254 transitions. [2023-08-27 03:56:28,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 46 transitions, 239 flow [2023-08-27 03:56:28,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 46 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 03:56:28,063 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 130 flow [2023-08-27 03:56:28,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2023-08-27 03:56:28,064 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-08-27 03:56:28,065 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 130 flow [2023-08-27 03:56:28,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-27 03:56:28,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:28,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:28,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 03:56:28,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:28,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:28,073 INFO L85 PathProgramCache]: Analyzing trace with hash 29003999, now seen corresponding path program 1 times [2023-08-27 03:56:28,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:28,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717607967] [2023-08-27 03:56:28,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:28,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:28,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:28,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717607967] [2023-08-27 03:56:28,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717607967] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:28,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:28,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:56:28,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602908560] [2023-08-27 03:56:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:28,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:56:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:28,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:56:28,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:56:28,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 180 [2023-08-27 03:56:28,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2023-08-27 03:56:28,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:28,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 180 [2023-08-27 03:56:28,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:28,260 INFO L124 PetriNetUnfolderBase]: 643/1064 cut-off events. [2023-08-27 03:56:28,260 INFO L125 PetriNetUnfolderBase]: For 616/672 co-relation queries the response was YES. [2023-08-27 03:56:28,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3149 conditions, 1064 events. 643/1064 cut-off events. For 616/672 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5570 event pairs, 131 based on Foata normal form. 33/854 useless extension candidates. Maximal degree in co-relation 3135. Up to 850 conditions per place. [2023-08-27 03:56:28,268 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 33 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-08-27 03:56:28,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 242 flow [2023-08-27 03:56:28,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:56:28,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:56:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-27 03:56:28,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4638888888888889 [2023-08-27 03:56:28,270 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-27 03:56:28,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-27 03:56:28,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:28,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-27 03:56:28,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2023-08-27 03:56:28,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:28,275 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:28,275 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 130 flow. Second operand 4 states and 334 transitions. [2023-08-27 03:56:28,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 242 flow [2023-08-27 03:56:28,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:56:28,279 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 114 flow [2023-08-27 03:56:28,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-08-27 03:56:28,281 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-27 03:56:28,281 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 114 flow [2023-08-27 03:56:28,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2023-08-27 03:56:28,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:28,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:28,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 03:56:28,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:28,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:28,286 INFO L85 PathProgramCache]: Analyzing trace with hash 999594780, now seen corresponding path program 1 times [2023-08-27 03:56:28,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:28,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556320835] [2023-08-27 03:56:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:28,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:28,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:28,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:28,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556320835] [2023-08-27 03:56:28,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556320835] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:28,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:28,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:56:28,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376382794] [2023-08-27 03:56:28,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:28,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:56:28,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:28,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:56:28,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:56:28,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 180 [2023-08-27 03:56:28,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2023-08-27 03:56:28,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:28,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 180 [2023-08-27 03:56:28,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:28,469 INFO L124 PetriNetUnfolderBase]: 423/720 cut-off events. [2023-08-27 03:56:28,469 INFO L125 PetriNetUnfolderBase]: For 471/527 co-relation queries the response was YES. [2023-08-27 03:56:28,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2081 conditions, 720 events. 423/720 cut-off events. For 471/527 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3497 event pairs, 69 based on Foata normal form. 33/647 useless extension candidates. Maximal degree in co-relation 2067. Up to 270 conditions per place. [2023-08-27 03:56:28,474 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 43 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2023-08-27 03:56:28,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 54 transitions, 304 flow [2023-08-27 03:56:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:56:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:56:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2023-08-27 03:56:28,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2023-08-27 03:56:28,476 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2023-08-27 03:56:28,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2023-08-27 03:56:28,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:28,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2023-08-27 03:56:28,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2023-08-27 03:56:28,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:28,479 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:28,479 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 114 flow. Second operand 4 states and 345 transitions. [2023-08-27 03:56:28,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 54 transitions, 304 flow [2023-08-27 03:56:28,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 54 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:56:28,482 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 153 flow [2023-08-27 03:56:28,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2023-08-27 03:56:28,483 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-08-27 03:56:28,483 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 153 flow [2023-08-27 03:56:28,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2023-08-27 03:56:28,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:28,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:28,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 03:56:28,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:28,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1000509902, now seen corresponding path program 1 times [2023-08-27 03:56:28,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:28,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540209120] [2023-08-27 03:56:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:28,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:28,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540209120] [2023-08-27 03:56:28,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540209120] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:28,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:28,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:56:28,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409761481] [2023-08-27 03:56:28,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:28,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:56:28,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:28,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:56:28,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:56:28,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2023-08-27 03:56:28,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-27 03:56:28,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:28,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2023-08-27 03:56:28,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:28,741 INFO L124 PetriNetUnfolderBase]: 398/713 cut-off events. [2023-08-27 03:56:28,741 INFO L125 PetriNetUnfolderBase]: For 869/893 co-relation queries the response was YES. [2023-08-27 03:56:28,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 713 events. 398/713 cut-off events. For 869/893 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3448 event pairs, 98 based on Foata normal form. 6/648 useless extension candidates. Maximal degree in co-relation 2343. Up to 479 conditions per place. [2023-08-27 03:56:28,746 INFO L140 encePairwiseOnDemand]: 177/180 looper letters, 33 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2023-08-27 03:56:28,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 271 flow [2023-08-27 03:56:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:56:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:56:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-27 03:56:28,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740740740740741 [2023-08-27 03:56:28,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-27 03:56:28,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-27 03:56:28,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:28,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-27 03:56:28,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-08-27 03:56:28,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-08-27 03:56:28,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-08-27 03:56:28,751 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 153 flow. Second operand 3 states and 256 transitions. [2023-08-27 03:56:28,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 271 flow [2023-08-27 03:56:28,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 249 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-27 03:56:28,756 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 150 flow [2023-08-27 03:56:28,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2023-08-27 03:56:28,758 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-08-27 03:56:28,758 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 150 flow [2023-08-27 03:56:28,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-27 03:56:28,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:28,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:28,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 03:56:28,759 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:28,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:28,759 INFO L85 PathProgramCache]: Analyzing trace with hash 55626213, now seen corresponding path program 1 times [2023-08-27 03:56:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176323392] [2023-08-27 03:56:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:28,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:28,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176323392] [2023-08-27 03:56:28,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176323392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:28,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:28,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:56:28,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108223834] [2023-08-27 03:56:28,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:28,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:56:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:56:28,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:56:28,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 180 [2023-08-27 03:56:28,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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) [2023-08-27 03:56:28,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:28,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 180 [2023-08-27 03:56:28,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:29,018 INFO L124 PetriNetUnfolderBase]: 499/820 cut-off events. [2023-08-27 03:56:29,018 INFO L125 PetriNetUnfolderBase]: For 553/553 co-relation queries the response was YES. [2023-08-27 03:56:29,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2726 conditions, 820 events. 499/820 cut-off events. For 553/553 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3529 event pairs, 52 based on Foata normal form. 3/799 useless extension candidates. Maximal degree in co-relation 2710. Up to 463 conditions per place. [2023-08-27 03:56:29,024 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 48 selfloop transitions, 10 changer transitions 0/58 dead transitions. [2023-08-27 03:56:29,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 58 transitions, 389 flow [2023-08-27 03:56:29,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:56:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:56:29,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-08-27 03:56:29,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46111111111111114 [2023-08-27 03:56:29,026 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-08-27 03:56:29,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-08-27 03:56:29,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:29,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-08-27 03:56:29,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-08-27 03:56:29,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:29,029 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:29,029 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 150 flow. Second operand 4 states and 332 transitions. [2023-08-27 03:56:29,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 58 transitions, 389 flow [2023-08-27 03:56:29,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 58 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:56:29,031 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 213 flow [2023-08-27 03:56:29,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=213, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2023-08-27 03:56:29,032 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-08-27 03:56:29,032 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 213 flow [2023-08-27 03:56:29,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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) [2023-08-27 03:56:29,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:29,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:29,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 03:56:29,033 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:29,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:29,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1724438557, now seen corresponding path program 1 times [2023-08-27 03:56:29,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:29,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062226896] [2023-08-27 03:56:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:29,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:29,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:29,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062226896] [2023-08-27 03:56:29,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062226896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:29,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:29,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:56:29,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90151331] [2023-08-27 03:56:29,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:29,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:56:29,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:29,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:56:29,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:56:29,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 180 [2023-08-27 03:56:29,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2023-08-27 03:56:29,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:29,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 180 [2023-08-27 03:56:29,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:29,246 INFO L124 PetriNetUnfolderBase]: 580/1004 cut-off events. [2023-08-27 03:56:29,247 INFO L125 PetriNetUnfolderBase]: For 1726/1738 co-relation queries the response was YES. [2023-08-27 03:56:29,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3749 conditions, 1004 events. 580/1004 cut-off events. For 1726/1738 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5057 event pairs, 72 based on Foata normal form. 39/1000 useless extension candidates. Maximal degree in co-relation 3730. Up to 435 conditions per place. [2023-08-27 03:56:29,255 INFO L140 encePairwiseOnDemand]: 176/180 looper letters, 63 selfloop transitions, 5 changer transitions 3/75 dead transitions. [2023-08-27 03:56:29,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 75 transitions, 585 flow [2023-08-27 03:56:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 03:56:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 03:56:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2023-08-27 03:56:29,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-08-27 03:56:29,257 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2023-08-27 03:56:29,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2023-08-27 03:56:29,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:29,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2023-08-27 03:56:29,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2023-08-27 03:56:29,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:29,259 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 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) [2023-08-27 03:56:29,260 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 213 flow. Second operand 4 states and 336 transitions. [2023-08-27 03:56:29,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 75 transitions, 585 flow [2023-08-27 03:56:29,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 75 transitions, 585 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 03:56:29,265 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 260 flow [2023-08-27 03:56:29,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-08-27 03:56:29,265 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2023-08-27 03:56:29,266 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 260 flow [2023-08-27 03:56:29,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2023-08-27 03:56:29,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:29,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:29,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 03:56:29,266 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:29,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:29,267 INFO L85 PathProgramCache]: Analyzing trace with hash -582692854, now seen corresponding path program 1 times [2023-08-27 03:56:29,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:29,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883605140] [2023-08-27 03:56:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:29,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:29,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:29,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883605140] [2023-08-27 03:56:29,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883605140] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:29,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:29,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 03:56:29,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142289087] [2023-08-27 03:56:29,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:29,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 03:56:29,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:29,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 03:56:29,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 03:56:29,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 180 [2023-08-27 03:56:29,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2023-08-27 03:56:29,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:29,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 180 [2023-08-27 03:56:29,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:29,502 INFO L124 PetriNetUnfolderBase]: 410/795 cut-off events. [2023-08-27 03:56:29,502 INFO L125 PetriNetUnfolderBase]: For 2235/2436 co-relation queries the response was YES. [2023-08-27 03:56:29,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3073 conditions, 795 events. 410/795 cut-off events. For 2235/2436 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 4570 event pairs, 87 based on Foata normal form. 221/927 useless extension candidates. Maximal degree in co-relation 3050. Up to 527 conditions per place. [2023-08-27 03:56:29,508 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 61 selfloop transitions, 8 changer transitions 3/78 dead transitions. [2023-08-27 03:56:29,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 78 transitions, 661 flow [2023-08-27 03:56:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:56:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:56:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-27 03:56:29,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588888888888889 [2023-08-27 03:56:29,511 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-27 03:56:29,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-27 03:56:29,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:29,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-27 03:56:29,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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) [2023-08-27 03:56:29,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-08-27 03:56:29,514 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-08-27 03:56:29,514 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 260 flow. Second operand 5 states and 413 transitions. [2023-08-27 03:56:29,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 78 transitions, 661 flow [2023-08-27 03:56:29,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 78 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:56:29,518 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 323 flow [2023-08-27 03:56:29,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2023-08-27 03:56:29,519 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2023-08-27 03:56:29,519 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 323 flow [2023-08-27 03:56:29,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2023-08-27 03:56:29,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:29,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:29,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 03:56:29,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:29,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:29,520 INFO L85 PathProgramCache]: Analyzing trace with hash -371730204, now seen corresponding path program 1 times [2023-08-27 03:56:29,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:29,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498230574] [2023-08-27 03:56:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:29,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:29,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498230574] [2023-08-27 03:56:29,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498230574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:29,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:29,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:56:29,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085960991] [2023-08-27 03:56:29,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:29,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:56:29,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:29,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:56:29,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:56:29,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 180 [2023-08-27 03:56:29,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 323 flow. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2023-08-27 03:56:29,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:29,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 180 [2023-08-27 03:56:29,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:29,877 INFO L124 PetriNetUnfolderBase]: 710/1360 cut-off events. [2023-08-27 03:56:29,877 INFO L125 PetriNetUnfolderBase]: For 3780/3780 co-relation queries the response was YES. [2023-08-27 03:56:29,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5895 conditions, 1360 events. 710/1360 cut-off events. For 3780/3780 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 8310 event pairs, 92 based on Foata normal form. 13/1282 useless extension candidates. Maximal degree in co-relation 5869. Up to 528 conditions per place. [2023-08-27 03:56:29,888 INFO L140 encePairwiseOnDemand]: 172/180 looper letters, 96 selfloop transitions, 21 changer transitions 3/120 dead transitions. [2023-08-27 03:56:29,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 120 transitions, 1090 flow [2023-08-27 03:56:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 03:56:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 03:56:29,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 490 transitions. [2023-08-27 03:56:29,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2023-08-27 03:56:29,890 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 490 transitions. [2023-08-27 03:56:29,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 490 transitions. [2023-08-27 03:56:29,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:29,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 490 transitions. [2023-08-27 03:56:29,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 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) [2023-08-27 03:56:29,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2023-08-27 03:56:29,894 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2023-08-27 03:56:29,894 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 323 flow. Second operand 6 states and 490 transitions. [2023-08-27 03:56:29,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 120 transitions, 1090 flow [2023-08-27 03:56:29,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 120 transitions, 1049 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:56:29,903 INFO L231 Difference]: Finished difference. Result has 57 places, 54 transitions, 478 flow [2023-08-27 03:56:29,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=478, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2023-08-27 03:56:29,904 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 24 predicate places. [2023-08-27 03:56:29,904 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 478 flow [2023-08-27 03:56:29,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2023-08-27 03:56:29,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:29,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:29,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 03:56:29,905 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:29,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:29,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1301436717, now seen corresponding path program 1 times [2023-08-27 03:56:29,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:29,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962681264] [2023-08-27 03:56:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:29,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:29,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:29,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962681264] [2023-08-27 03:56:29,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962681264] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:29,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:29,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:56:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881523172] [2023-08-27 03:56:29,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:29,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:56:29,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:29,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:56:29,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:56:29,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 180 [2023-08-27 03:56:29,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 478 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-08-27 03:56:29,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:29,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 180 [2023-08-27 03:56:29,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:30,158 INFO L124 PetriNetUnfolderBase]: 413/929 cut-off events. [2023-08-27 03:56:30,158 INFO L125 PetriNetUnfolderBase]: For 5004/5263 co-relation queries the response was YES. [2023-08-27 03:56:30,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 929 events. 413/929 cut-off events. For 5004/5263 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6396 event pairs, 56 based on Foata normal form. 292/1101 useless extension candidates. Maximal degree in co-relation 4120. Up to 395 conditions per place. [2023-08-27 03:56:30,166 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 75 selfloop transitions, 15 changer transitions 4/104 dead transitions. [2023-08-27 03:56:30,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 104 transitions, 1047 flow [2023-08-27 03:56:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 03:56:30,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 03:56:30,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 574 transitions. [2023-08-27 03:56:30,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45555555555555555 [2023-08-27 03:56:30,169 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 574 transitions. [2023-08-27 03:56:30,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 574 transitions. [2023-08-27 03:56:30,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:30,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 574 transitions. [2023-08-27 03:56:30,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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) [2023-08-27 03:56:30,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 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) [2023-08-27 03:56:30,173 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 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) [2023-08-27 03:56:30,173 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 478 flow. Second operand 7 states and 574 transitions. [2023-08-27 03:56:30,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 104 transitions, 1047 flow [2023-08-27 03:56:30,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 104 transitions, 1012 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-27 03:56:30,182 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 504 flow [2023-08-27 03:56:30,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=504, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2023-08-27 03:56:30,182 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 32 predicate places. [2023-08-27 03:56:30,182 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 504 flow [2023-08-27 03:56:30,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-08-27 03:56:30,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:30,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:30,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 03:56:30,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:30,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1772666350, now seen corresponding path program 1 times [2023-08-27 03:56:30,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:30,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207179736] [2023-08-27 03:56:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:30,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:30,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:30,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207179736] [2023-08-27 03:56:30,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207179736] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:30,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:30,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 03:56:30,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350044415] [2023-08-27 03:56:30,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:30,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 03:56:30,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:30,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 03:56:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 03:56:30,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 180 [2023-08-27 03:56:30,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 504 flow. Second operand has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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) [2023-08-27 03:56:30,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:30,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 180 [2023-08-27 03:56:30,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:30,348 INFO L124 PetriNetUnfolderBase]: 340/769 cut-off events. [2023-08-27 03:56:30,348 INFO L125 PetriNetUnfolderBase]: For 4168/4406 co-relation queries the response was YES. [2023-08-27 03:56:30,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4161 conditions, 769 events. 340/769 cut-off events. For 4168/4406 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5108 event pairs, 34 based on Foata normal form. 144/892 useless extension candidates. Maximal degree in co-relation 4128. Up to 294 conditions per place. [2023-08-27 03:56:30,353 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 25 selfloop transitions, 9 changer transitions 36/74 dead transitions. [2023-08-27 03:56:30,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 74 transitions, 801 flow [2023-08-27 03:56:30,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 03:56:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 03:56:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 414 transitions. [2023-08-27 03:56:30,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46 [2023-08-27 03:56:30,355 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 414 transitions. [2023-08-27 03:56:30,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 414 transitions. [2023-08-27 03:56:30,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:30,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 414 transitions. [2023-08-27 03:56:30,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 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) [2023-08-27 03:56:30,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-08-27 03:56:30,359 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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) [2023-08-27 03:56:30,359 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 504 flow. Second operand 5 states and 414 transitions. [2023-08-27 03:56:30,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 74 transitions, 801 flow [2023-08-27 03:56:30,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 74 transitions, 774 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-27 03:56:30,374 INFO L231 Difference]: Finished difference. Result has 62 places, 26 transitions, 223 flow [2023-08-27 03:56:30,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=62, PETRI_TRANSITIONS=26} [2023-08-27 03:56:30,375 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 29 predicate places. [2023-08-27 03:56:30,375 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 26 transitions, 223 flow [2023-08-27 03:56:30,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 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) [2023-08-27 03:56:30,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:56:30,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:30,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 03:56:30,376 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 03:56:30,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:56:30,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1541731947, now seen corresponding path program 1 times [2023-08-27 03:56:30,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:56:30,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756561635] [2023-08-27 03:56:30,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:56:30,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:56:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:56:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:56:30,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:56:30,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756561635] [2023-08-27 03:56:30,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756561635] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:56:30,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:56:30,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 03:56:30,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8665337] [2023-08-27 03:56:30,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:56:30,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 03:56:30,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:56:30,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 03:56:30,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-27 03:56:30,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 180 [2023-08-27 03:56:30,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 26 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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) [2023-08-27 03:56:30,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:56:30,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 180 [2023-08-27 03:56:30,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:56:30,534 INFO L124 PetriNetUnfolderBase]: 65/164 cut-off events. [2023-08-27 03:56:30,535 INFO L125 PetriNetUnfolderBase]: For 663/686 co-relation queries the response was YES. [2023-08-27 03:56:30,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 164 events. 65/164 cut-off events. For 663/686 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 675 event pairs, 11 based on Foata normal form. 15/173 useless extension candidates. Maximal degree in co-relation 818. Up to 56 conditions per place. [2023-08-27 03:56:30,536 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-08-27 03:56:30,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 42 transitions, 392 flow [2023-08-27 03:56:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 03:56:30,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 03:56:30,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 546 transitions. [2023-08-27 03:56:30,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-27 03:56:30,538 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 546 transitions. [2023-08-27 03:56:30,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 546 transitions. [2023-08-27 03:56:30,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:56:30,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 546 transitions. [2023-08-27 03:56:30,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2023-08-27 03:56:30,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 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) [2023-08-27 03:56:30,542 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 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) [2023-08-27 03:56:30,542 INFO L175 Difference]: Start difference. First operand has 62 places, 26 transitions, 223 flow. Second operand 7 states and 546 transitions. [2023-08-27 03:56:30,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 42 transitions, 392 flow [2023-08-27 03:56:30,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 298 flow, removed 10 selfloop flow, removed 13 redundant places. [2023-08-27 03:56:30,544 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2023-08-27 03:56:30,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2023-08-27 03:56:30,545 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2023-08-27 03:56:30,545 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2023-08-27 03:56:30,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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) [2023-08-27 03:56:30,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-27 03:56:30,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-27 03:56:30,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-27 03:56:30,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-27 03:56:30,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-27 03:56:30,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-27 03:56:30,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-27 03:56:30,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-27 03:56:30,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-27 03:56:30,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 03:56:30,550 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:56:30,554 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 03:56:30,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 03:56:30,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:56:30 BasicIcfg [2023-08-27 03:56:30,556 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 03:56:30,557 INFO L158 Benchmark]: Toolchain (without parser) took 7251.01ms. Allocated memory was 367.0MB in the beginning and 490.7MB in the end (delta: 123.7MB). Free memory was 341.4MB in the beginning and 216.8MB in the end (delta: 124.6MB). Peak memory consumption was 248.4MB. Max. memory is 16.0GB. [2023-08-27 03:56:30,557 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory is still 344.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:56:30,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.69ms. Allocated memory is still 367.0MB. Free memory was 341.4MB in the beginning and 321.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-27 03:56:30,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.85ms. Allocated memory is still 367.0MB. Free memory was 321.1MB in the beginning and 319.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:56:30,557 INFO L158 Benchmark]: Boogie Preprocessor took 28.62ms. Allocated memory is still 367.0MB. Free memory was 319.0MB in the beginning and 317.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:56:30,558 INFO L158 Benchmark]: RCFGBuilder took 337.24ms. Allocated memory is still 367.0MB. Free memory was 317.4MB in the beginning and 301.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-27 03:56:30,558 INFO L158 Benchmark]: TraceAbstraction took 6371.54ms. Allocated memory was 367.0MB in the beginning and 490.7MB in the end (delta: 123.7MB). Free memory was 301.2MB in the beginning and 216.8MB in the end (delta: 84.4MB). Peak memory consumption was 208.6MB. Max. memory is 16.0GB. [2023-08-27 03:56:30,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory is still 344.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 441.69ms. Allocated memory is still 367.0MB. Free memory was 341.4MB in the beginning and 321.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.85ms. Allocated memory is still 367.0MB. Free memory was 321.1MB in the beginning and 319.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.62ms. Allocated memory is still 367.0MB. Free memory was 319.0MB in the beginning and 317.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 337.24ms. Allocated memory is still 367.0MB. Free memory was 317.4MB in the beginning and 301.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6371.54ms. Allocated memory was 367.0MB in the beginning and 490.7MB in the end (delta: 123.7MB). Free memory was 301.2MB in the beginning and 216.8MB in the end (delta: 84.4MB). Peak memory consumption was 208.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 97 PlacesBefore, 33 PlacesAfterwards, 90 TransitionsBefore, 24 TransitionsAfterwards, 2146 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 87 TotalNumberOfCompositions, 6040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2960, independent: 2783, independent conditional: 0, independent unconditional: 2783, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1229, independent: 1186, independent conditional: 0, independent unconditional: 1186, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2960, independent: 1597, independent conditional: 0, independent unconditional: 1597, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 1229, unknown conditional: 0, unknown unconditional: 1229] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 84, Positive conditional cache size: 0, Positive unconditional cache size: 84, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 120 locations, 16 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: 6.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 670 IncrementalHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 15 mSDtfsCounter, 670 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=504occurred in iteration=10, InterpolantAutomatonStates: 55, 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 03:56:30,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...