/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/weaver/chl-exp-term-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:15:36,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:15:36,281 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 06:15:36,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:15:36,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:15:36,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:15:36,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:15:36,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:15:36,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:15:36,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:15:36,320 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:15:36,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:15:36,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:15:36,321 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:15:36,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:15:36,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:15:36,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:15:36,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:15:36,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:15:36,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:15:36,322 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:15:36,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:15:36,322 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:15:36,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:15:36,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:15:36,323 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:15:36,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:15:36,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:15:36,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:15:36,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:15:36,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:15:36,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:15:36,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:15:36,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:15:36,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:15:36,325 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:15:36,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:15:36,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:15:36,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:15:36,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:15:36,583 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:15:36,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2023-08-27 06:15:37,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:15:37,643 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:15:37,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2023-08-27 06:15:37,649 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0025c4fb0/b0146356ac9a4c0ea4e9c561542a5dda/FLAG67fcd8e77 [2023-08-27 06:15:37,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0025c4fb0/b0146356ac9a4c0ea4e9c561542a5dda [2023-08-27 06:15:37,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:15:37,659 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:15:37,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:15:37,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:15:37,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:15:37,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d0d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37, skipping insertion in model container [2023-08-27 06:15:37,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,678 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:15:37,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:15:37,826 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:15:37,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:15:37,868 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:15:37,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37 WrapperNode [2023-08-27 06:15:37,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:15:37,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:15:37,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:15:37,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:15:37,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,918 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 226 [2023-08-27 06:15:37,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:15:37,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:15:37,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:15:37,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:15:37,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:15:37,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:15:37,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:15:37,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:15:37,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (1/1) ... [2023-08-27 06:15:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:15:37,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:15:37,974 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 06:15:37,994 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 06:15:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:15:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:15:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:15:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:15:38,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:15:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 06:15:38,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 06:15:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:15:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:15:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:15:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:15:38,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:15:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:15:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:15:38,005 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 06:15:38,092 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:15:38,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:15:38,373 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:15:38,380 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:15:38,380 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 06:15:38,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:38 BoogieIcfgContainer [2023-08-27 06:15:38,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:15:38,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:15:38,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:15:38,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:15:38,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:15:37" (1/3) ... [2023-08-27 06:15:38,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47841fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:38, skipping insertion in model container [2023-08-27 06:15:38,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:37" (2/3) ... [2023-08-27 06:15:38,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47841fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:38, skipping insertion in model container [2023-08-27 06:15:38,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:38" (3/3) ... [2023-08-27 06:15:38,387 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2023-08-27 06:15:38,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:15:38,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-27 06:15:38,400 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:15:38,520 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 06:15:38,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 280 transitions, 584 flow [2023-08-27 06:15:38,652 INFO L124 PetriNetUnfolderBase]: 23/277 cut-off events. [2023-08-27 06:15:38,653 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:15:38,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 277 events. 23/277 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 753 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-27 06:15:38,661 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 280 transitions, 584 flow [2023-08-27 06:15:38,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 266 transitions, 550 flow [2023-08-27 06:15:38,673 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:15:38,681 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 266 transitions, 550 flow [2023-08-27 06:15:38,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 266 transitions, 550 flow [2023-08-27 06:15:38,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 266 transitions, 550 flow [2023-08-27 06:15:38,728 INFO L124 PetriNetUnfolderBase]: 23/266 cut-off events. [2023-08-27 06:15:38,728 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 06:15:38,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 266 events. 23/266 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 751 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-27 06:15:38,740 INFO L119 LiptonReduction]: Number of co-enabled transitions 26718 [2023-08-27 06:15:50,730 INFO L134 LiptonReduction]: Checked pairs total: 25801 [2023-08-27 06:15:50,730 INFO L136 LiptonReduction]: Total number of compositions: 349 [2023-08-27 06:15:50,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:15:50,743 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;@241f2480, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:15:50,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-27 06:15:50,745 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:15:50,745 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 06:15:50,745 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:15:50,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:50,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:50,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:50,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:50,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1189974, now seen corresponding path program 1 times [2023-08-27 06:15:50,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:50,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581470982] [2023-08-27 06:15:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:50,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:50,932 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 06:15:50,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:50,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581470982] [2023-08-27 06:15:50,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581470982] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:50,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:50,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:50,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912075680] [2023-08-27 06:15:50,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:50,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:50,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:50,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:50,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 629 [2023-08-27 06:15:50,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:50,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:50,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 629 [2023-08-27 06:15:50,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:51,134 INFO L124 PetriNetUnfolderBase]: 793/1236 cut-off events. [2023-08-27 06:15:51,134 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-08-27 06:15:51,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 1236 events. 793/1236 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 5571 event pairs, 793 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 2182. Up to 1236 conditions per place. [2023-08-27 06:15:51,140 INFO L140 encePairwiseOnDemand]: 620/629 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-27 06:15:51,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 122 flow [2023-08-27 06:15:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2023-08-27 06:15:51,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4266030736618972 [2023-08-27 06:15:51,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2023-08-27 06:15:51,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2023-08-27 06:15:51,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:51,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2023-08-27 06:15:51,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 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 06:15:51,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,165 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 86 flow. Second operand 3 states and 805 transitions. [2023-08-27 06:15:51,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 122 flow [2023-08-27 06:15:51,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 06:15:51,170 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 60 flow [2023-08-27 06:15:51,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-27 06:15:51,173 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2023-08-27 06:15:51,173 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 60 flow [2023-08-27 06:15:51,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:51,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:51,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:51,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:15:51,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:51,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:51,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1190024, now seen corresponding path program 1 times [2023-08-27 06:15:51,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:51,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075042242] [2023-08-27 06:15:51,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:51,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:51,229 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 06:15:51,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:51,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075042242] [2023-08-27 06:15:51,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075042242] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:51,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:51,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:51,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067840521] [2023-08-27 06:15:51,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:51,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:51,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:51,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:51,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:51,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 629 [2023-08-27 06:15:51,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:51,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:51,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 629 [2023-08-27 06:15:51,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:51,363 INFO L124 PetriNetUnfolderBase]: 517/824 cut-off events. [2023-08-27 06:15:51,363 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-27 06:15:51,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 824 events. 517/824 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 3434 event pairs, 517 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 1675. Up to 824 conditions per place. [2023-08-27 06:15:51,366 INFO L140 encePairwiseOnDemand]: 626/629 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 06:15:51,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 24 transitions, 104 flow [2023-08-27 06:15:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2023-08-27 06:15:51,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42236354001059884 [2023-08-27 06:15:51,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2023-08-27 06:15:51,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2023-08-27 06:15:51,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:51,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2023-08-27 06:15:51,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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 06:15:51,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,373 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,373 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 60 flow. Second operand 3 states and 797 transitions. [2023-08-27 06:15:51,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 24 transitions, 104 flow [2023-08-27 06:15:51,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:51,374 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 57 flow [2023-08-27 06:15:51,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-27 06:15:51,375 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2023-08-27 06:15:51,375 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 57 flow [2023-08-27 06:15:51,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:51,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:51,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:51,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 06:15:51,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:51,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:51,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1190025, now seen corresponding path program 1 times [2023-08-27 06:15:51,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:51,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219688395] [2023-08-27 06:15:51,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:51,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:51,431 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 06:15:51,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219688395] [2023-08-27 06:15:51,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219688395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:51,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:51,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:51,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122083327] [2023-08-27 06:15:51,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:51,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:51,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:51,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:51,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:51,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 629 [2023-08-27 06:15:51,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:51,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:51,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 629 [2023-08-27 06:15:51,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:51,518 INFO L124 PetriNetUnfolderBase]: 323/530 cut-off events. [2023-08-27 06:15:51,518 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-27 06:15:51,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 530 events. 323/530 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2000 event pairs, 323 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 1077. Up to 530 conditions per place. [2023-08-27 06:15:51,520 INFO L140 encePairwiseOnDemand]: 626/629 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-27 06:15:51,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 97 flow [2023-08-27 06:15:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:51,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2023-08-27 06:15:51,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42130365659777425 [2023-08-27 06:15:51,522 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2023-08-27 06:15:51,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2023-08-27 06:15:51,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:51,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2023-08-27 06:15:51,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 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 06:15:51,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,528 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 57 flow. Second operand 3 states and 795 transitions. [2023-08-27 06:15:51,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 97 flow [2023-08-27 06:15:51,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:51,529 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 54 flow [2023-08-27 06:15:51,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-27 06:15:51,530 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -14 predicate places. [2023-08-27 06:15:51,530 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 54 flow [2023-08-27 06:15:51,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:51,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:51,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:15:51,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:15:51,533 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:51,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1190023, now seen corresponding path program 1 times [2023-08-27 06:15:51,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:51,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134713606] [2023-08-27 06:15:51,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:51,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:51,585 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 06:15:51,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:51,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134713606] [2023-08-27 06:15:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134713606] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:51,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:51,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:51,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911781103] [2023-08-27 06:15:51,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:51,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:51,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:51,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:51,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 629 [2023-08-27 06:15:51,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:51,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:51,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 629 [2023-08-27 06:15:51,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:51,648 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-27 06:15:51,648 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 06:15:51,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 300 events. 173/300 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 990 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 609. Up to 300 conditions per place. [2023-08-27 06:15:51,650 INFO L140 encePairwiseOnDemand]: 626/629 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-27 06:15:51,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 90 flow [2023-08-27 06:15:51,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 793 transitions. [2023-08-27 06:15:51,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42024377318494965 [2023-08-27 06:15:51,652 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 793 transitions. [2023-08-27 06:15:51,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 793 transitions. [2023-08-27 06:15:51,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:51,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 793 transitions. [2023-08-27 06:15:51,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 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 06:15:51,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,657 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 54 flow. Second operand 3 states and 793 transitions. [2023-08-27 06:15:51,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 90 flow [2023-08-27 06:15:51,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:51,658 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 51 flow [2023-08-27 06:15:51,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-27 06:15:51,659 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -15 predicate places. [2023-08-27 06:15:51,659 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 51 flow [2023-08-27 06:15:51,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 06:15:51,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:51,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:15:51,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 06:15:51,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:51,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:51,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1143557521, now seen corresponding path program 1 times [2023-08-27 06:15:51,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:51,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599455934] [2023-08-27 06:15:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:51,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:51,705 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 06:15:51,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:51,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599455934] [2023-08-27 06:15:51,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599455934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:51,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:51,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:51,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672278659] [2023-08-27 06:15:51,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:51,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:51,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:51,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:51,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:51,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 629 [2023-08-27 06:15:51,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 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 06:15:51,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:51,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 629 [2023-08-27 06:15:51,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:51,756 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-27 06:15:51,757 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:15:51,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 172 events. 93/172 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 463 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 351. Up to 172 conditions per place. [2023-08-27 06:15:51,758 INFO L140 encePairwiseOnDemand]: 626/629 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-27 06:15:51,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 83 flow [2023-08-27 06:15:51,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:51,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2023-08-27 06:15:51,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41918388977212506 [2023-08-27 06:15:51,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 791 transitions. [2023-08-27 06:15:51,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 791 transitions. [2023-08-27 06:15:51,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:51,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 791 transitions. [2023-08-27 06:15:51,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.6666666666667) internal successors, (791), 3 states have internal predecessors, (791), 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 06:15:51,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,770 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 51 flow. Second operand 3 states and 791 transitions. [2023-08-27 06:15:51,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 83 flow [2023-08-27 06:15:51,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:51,771 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 48 flow [2023-08-27 06:15:51,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-27 06:15:51,773 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-27 06:15:51,773 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 48 flow [2023-08-27 06:15:51,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 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 06:15:51,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:51,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 06:15:51,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:15:51,774 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:51,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:51,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1143557465, now seen corresponding path program 1 times [2023-08-27 06:15:51,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:51,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505365340] [2023-08-27 06:15:51,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:51,801 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 06:15:51,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:51,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505365340] [2023-08-27 06:15:51,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505365340] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:51,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:51,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:15:51,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39232386] [2023-08-27 06:15:51,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:51,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:15:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:15:51,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:15:51,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 629 [2023-08-27 06:15:51,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 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 06:15:51,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:51,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 629 [2023-08-27 06:15:51,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:51,841 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-27 06:15:51,841 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:15:51,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 80 events. 37/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 165. Up to 80 conditions per place. [2023-08-27 06:15:51,841 INFO L140 encePairwiseOnDemand]: 626/629 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-27 06:15:51,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 76 flow [2023-08-27 06:15:51,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:15:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:15:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 789 transitions. [2023-08-27 06:15:51,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41812400635930047 [2023-08-27 06:15:51,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 789 transitions. [2023-08-27 06:15:51,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 789 transitions. [2023-08-27 06:15:51,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:51,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 789 transitions. [2023-08-27 06:15:51,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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 06:15:51,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 06:15:51,849 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 48 flow. Second operand 3 states and 789 transitions. [2023-08-27 06:15:51,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 76 flow [2023-08-27 06:15:51,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:51,850 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 45 flow [2023-08-27 06:15:51,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2023-08-27 06:15:51,852 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -17 predicate places. [2023-08-27 06:15:51,852 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 45 flow [2023-08-27 06:15:51,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 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 06:15:51,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:51,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:15:51,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 06:15:51,853 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:51,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:51,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1040478243, now seen corresponding path program 1 times [2023-08-27 06:15:51,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:51,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140432298] [2023-08-27 06:15:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:51,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:53,714 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 06:15:53,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:53,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140432298] [2023-08-27 06:15:53,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140432298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:53,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:53,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:15:53,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214982550] [2023-08-27 06:15:53,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:53,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:15:53,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:53,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:15:53,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:15:53,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 629 [2023-08-27 06:15:53,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:15:53,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:53,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 629 [2023-08-27 06:15:53,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:53,954 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-27 06:15:53,954 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 06:15:53,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 106 events. 40/106 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 322 event pairs, 6 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 218. Up to 48 conditions per place. [2023-08-27 06:15:53,955 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 30 selfloop transitions, 6 changer transitions 9/45 dead transitions. [2023-08-27 06:15:53,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 45 transitions, 203 flow [2023-08-27 06:15:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:15:53,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:15:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1390 transitions. [2023-08-27 06:15:53,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3683094859565448 [2023-08-27 06:15:53,958 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1390 transitions. [2023-08-27 06:15:53,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1390 transitions. [2023-08-27 06:15:53,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:53,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1390 transitions. [2023-08-27 06:15:53,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.66666666666666) internal successors, (1390), 6 states have internal predecessors, (1390), 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 06:15:53,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:15:53,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:15:53,965 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 45 flow. Second operand 6 states and 1390 transitions. [2023-08-27 06:15:53,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 45 transitions, 203 flow [2023-08-27 06:15:53,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 45 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:53,966 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 77 flow [2023-08-27 06:15:53,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2023-08-27 06:15:53,966 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -10 predicate places. [2023-08-27 06:15:53,966 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 77 flow [2023-08-27 06:15:53,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:15:53,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:53,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:15:53,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 06:15:53,967 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:53,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:53,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1189350119, now seen corresponding path program 2 times [2023-08-27 06:15:53,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:53,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303087317] [2023-08-27 06:15:53,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:53,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:55,638 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 06:15:55,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:55,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303087317] [2023-08-27 06:15:55,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303087317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:55,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:55,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-27 06:15:55,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863576363] [2023-08-27 06:15:55,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:55,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 06:15:55,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:55,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 06:15:55,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 06:15:55,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 629 [2023-08-27 06:15:55,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 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 06:15:55,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:55,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 629 [2023-08-27 06:15:55,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:55,916 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-27 06:15:55,916 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-08-27 06:15:55,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 114 events. 36/114 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 399 event pairs, 4 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 309. Up to 62 conditions per place. [2023-08-27 06:15:55,916 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 28 selfloop transitions, 5 changer transitions 10/43 dead transitions. [2023-08-27 06:15:55,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 227 flow [2023-08-27 06:15:55,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 06:15:55,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 06:15:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1577 transitions. [2023-08-27 06:15:55,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35816488757665227 [2023-08-27 06:15:55,920 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1577 transitions. [2023-08-27 06:15:55,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1577 transitions. [2023-08-27 06:15:55,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:55,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1577 transitions. [2023-08-27 06:15:55,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 225.28571428571428) internal successors, (1577), 7 states have internal predecessors, (1577), 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 06:15:55,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 629.0) internal successors, (5032), 8 states have internal predecessors, (5032), 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 06:15:55,929 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 629.0) internal successors, (5032), 8 states have internal predecessors, (5032), 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 06:15:55,929 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 77 flow. Second operand 7 states and 1577 transitions. [2023-08-27 06:15:55,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 227 flow [2023-08-27 06:15:55,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 223 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-27 06:15:55,931 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 95 flow [2023-08-27 06:15:55,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=95, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-08-27 06:15:55,933 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-27 06:15:55,933 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 95 flow [2023-08-27 06:15:55,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 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 06:15:55,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:55,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:15:55,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 06:15:55,934 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:55,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:55,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1442439499, now seen corresponding path program 3 times [2023-08-27 06:15:55,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:55,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026978651] [2023-08-27 06:15:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:55,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:57,447 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 06:15:57,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:57,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026978651] [2023-08-27 06:15:57,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026978651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:57,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:57,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:15:57,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762709098] [2023-08-27 06:15:57,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:57,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:15:57,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:15:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:15:57,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 629 [2023-08-27 06:15:57,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:15:57,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:57,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 629 [2023-08-27 06:15:57,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:57,909 INFO L124 PetriNetUnfolderBase]: 20/70 cut-off events. [2023-08-27 06:15:57,909 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2023-08-27 06:15:57,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 70 events. 20/70 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 187 event pairs, 0 based on Foata normal form. 1/71 useless extension candidates. Maximal degree in co-relation 223. Up to 23 conditions per place. [2023-08-27 06:15:57,909 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 27 selfloop transitions, 6 changer transitions 9/42 dead transitions. [2023-08-27 06:15:57,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 239 flow [2023-08-27 06:15:57,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:15:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:15:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1386 transitions. [2023-08-27 06:15:57,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3672496025437202 [2023-08-27 06:15:57,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1386 transitions. [2023-08-27 06:15:57,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1386 transitions. [2023-08-27 06:15:57,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:57,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1386 transitions. [2023-08-27 06:15:57,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 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 06:15:57,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:15:57,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:15:57,920 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 95 flow. Second operand 6 states and 1386 transitions. [2023-08-27 06:15:57,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 239 flow [2023-08-27 06:15:57,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 218 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-27 06:15:57,923 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 98 flow [2023-08-27 06:15:57,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-08-27 06:15:57,924 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-27 06:15:57,924 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 98 flow [2023-08-27 06:15:57,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:15:57,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:57,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:15:57,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 06:15:57,925 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:57,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:57,925 INFO L85 PathProgramCache]: Analyzing trace with hash -227249917, now seen corresponding path program 4 times [2023-08-27 06:15:57,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:57,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478169193] [2023-08-27 06:15:57,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:57,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:15:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:15:59,625 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 06:15:59,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:15:59,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478169193] [2023-08-27 06:15:59,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478169193] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:15:59,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:15:59,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:15:59,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940172544] [2023-08-27 06:15:59,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:15:59,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:15:59,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:15:59,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:15:59,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:15:59,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 629 [2023-08-27 06:15:59,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:15:59,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:15:59,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 629 [2023-08-27 06:15:59,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:15:59,934 INFO L124 PetriNetUnfolderBase]: 15/67 cut-off events. [2023-08-27 06:15:59,934 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2023-08-27 06:15:59,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 67 events. 15/67 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 175 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 220. Up to 41 conditions per place. [2023-08-27 06:15:59,934 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 18 selfloop transitions, 4 changer transitions 12/34 dead transitions. [2023-08-27 06:15:59,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 206 flow [2023-08-27 06:15:59,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:15:59,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:15:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1378 transitions. [2023-08-27 06:15:59,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.365129835718071 [2023-08-27 06:15:59,938 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1378 transitions. [2023-08-27 06:15:59,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1378 transitions. [2023-08-27 06:15:59,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:15:59,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1378 transitions. [2023-08-27 06:15:59,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.66666666666666) internal successors, (1378), 6 states have internal predecessors, (1378), 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 06:15:59,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:15:59,949 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:15:59,949 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 98 flow. Second operand 6 states and 1378 transitions. [2023-08-27 06:15:59,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 206 flow [2023-08-27 06:15:59,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 201 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-27 06:15:59,950 INFO L231 Difference]: Finished difference. Result has 44 places, 18 transitions, 91 flow [2023-08-27 06:15:59,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=91, PETRI_PLACES=44, PETRI_TRANSITIONS=18} [2023-08-27 06:15:59,951 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2023-08-27 06:15:59,951 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 18 transitions, 91 flow [2023-08-27 06:15:59,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:15:59,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:15:59,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:15:59,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 06:15:59,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:15:59,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:15:59,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1262155079, now seen corresponding path program 5 times [2023-08-27 06:15:59,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:15:59,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621898959] [2023-08-27 06:15:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:15:59,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:16:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:16:01,107 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 06:16:01,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:16:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621898959] [2023-08-27 06:16:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621898959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:16:01,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:16:01,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:16:01,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417826080] [2023-08-27 06:16:01,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:16:01,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:16:01,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:16:01,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:16:01,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:16:01,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 629 [2023-08-27 06:16:01,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 18 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:16:01,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:16:01,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 629 [2023-08-27 06:16:01,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:16:01,416 INFO L124 PetriNetUnfolderBase]: 7/37 cut-off events. [2023-08-27 06:16:01,416 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-27 06:16:01,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 37 events. 7/37 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2023-08-27 06:16:01,417 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 17 selfloop transitions, 3 changer transitions 8/28 dead transitions. [2023-08-27 06:16:01,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 28 transitions, 171 flow [2023-08-27 06:16:01,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:16:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:16:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1372 transitions. [2023-08-27 06:16:01,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3635400105988341 [2023-08-27 06:16:01,421 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1372 transitions. [2023-08-27 06:16:01,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1372 transitions. [2023-08-27 06:16:01,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:16:01,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1372 transitions. [2023-08-27 06:16:01,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.66666666666666) internal successors, (1372), 6 states have internal predecessors, (1372), 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 06:16:01,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:16:01,427 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:16:01,427 INFO L175 Difference]: Start difference. First operand has 44 places, 18 transitions, 91 flow. Second operand 6 states and 1372 transitions. [2023-08-27 06:16:01,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 28 transitions, 171 flow [2023-08-27 06:16:01,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 152 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-27 06:16:01,428 INFO L231 Difference]: Finished difference. Result has 40 places, 16 transitions, 65 flow [2023-08-27 06:16:01,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=65, PETRI_PLACES=40, PETRI_TRANSITIONS=16} [2023-08-27 06:16:01,429 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -4 predicate places. [2023-08-27 06:16:01,429 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 16 transitions, 65 flow [2023-08-27 06:16:01,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:16:01,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:16:01,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:16:01,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 06:16:01,430 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 06:16:01,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:16:01,430 INFO L85 PathProgramCache]: Analyzing trace with hash -444647621, now seen corresponding path program 6 times [2023-08-27 06:16:01,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:16:01,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435540183] [2023-08-27 06:16:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:16:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:16:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:16:03,042 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 06:16:03,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:16:03,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435540183] [2023-08-27 06:16:03,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435540183] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:16:03,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:16:03,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 06:16:03,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423281199] [2023-08-27 06:16:03,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:16:03,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 06:16:03,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:16:03,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 06:16:03,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 06:16:03,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 629 [2023-08-27 06:16:03,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 16 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:16:03,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:16:03,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 629 [2023-08-27 06:16:03,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:16:03,366 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2023-08-27 06:16:03,367 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-08-27 06:16:03,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 25 events. 5/25 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 87. Up to 10 conditions per place. [2023-08-27 06:16:03,367 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-27 06:16:03,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 20 transitions, 112 flow [2023-08-27 06:16:03,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 06:16:03,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 06:16:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1365 transitions. [2023-08-27 06:16:03,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3616852146263911 [2023-08-27 06:16:03,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1365 transitions. [2023-08-27 06:16:03,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1365 transitions. [2023-08-27 06:16:03,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:16:03,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1365 transitions. [2023-08-27 06:16:03,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.5) internal successors, (1365), 6 states have internal predecessors, (1365), 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 06:16:03,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:16:03,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 06:16:03,375 INFO L175 Difference]: Start difference. First operand has 40 places, 16 transitions, 65 flow. Second operand 6 states and 1365 transitions. [2023-08-27 06:16:03,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 20 transitions, 112 flow [2023-08-27 06:16:03,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 20 transitions, 96 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-27 06:16:03,376 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-27 06:16:03,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-27 06:16:03,376 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -9 predicate places. [2023-08-27 06:16:03,376 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-27 06:16:03,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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 06:16:03,378 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 40 remaining) [2023-08-27 06:16:03,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (21 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 40 remaining) [2023-08-27 06:16:03,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 40 remaining) [2023-08-27 06:16:03,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 40 remaining) [2023-08-27 06:16:03,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 40 remaining) [2023-08-27 06:16:03,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 40 remaining) [2023-08-27 06:16:03,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 40 remaining) [2023-08-27 06:16:03,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 40 remaining) [2023-08-27 06:16:03,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 40 remaining) [2023-08-27 06:16:03,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 06:16:03,382 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2023-08-27 06:16:03,385 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:16:03,386 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:16:03,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:16:03 BasicIcfg [2023-08-27 06:16:03,389 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:16:03,389 INFO L158 Benchmark]: Toolchain (without parser) took 25729.97ms. Allocated memory was 375.4MB in the beginning and 830.5MB in the end (delta: 455.1MB). Free memory was 350.8MB in the beginning and 733.0MB in the end (delta: -382.2MB). Peak memory consumption was 76.9MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,389 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 352.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:16:03,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.49ms. Allocated memory is still 375.4MB. Free memory was 350.8MB in the beginning and 339.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.62ms. Allocated memory is still 375.4MB. Free memory was 339.1MB in the beginning and 337.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,389 INFO L158 Benchmark]: Boogie Preprocessor took 33.04ms. Allocated memory is still 375.4MB. Free memory was 337.0MB in the beginning and 335.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,390 INFO L158 Benchmark]: RCFGBuilder took 429.38ms. Allocated memory is still 375.4MB. Free memory was 335.4MB in the beginning and 312.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,390 INFO L158 Benchmark]: TraceAbstraction took 25005.44ms. Allocated memory was 375.4MB in the beginning and 830.5MB in the end (delta: 455.1MB). Free memory was 311.4MB in the beginning and 733.0MB in the end (delta: -421.6MB). Peak memory consumption was 37.0MB. Max. memory is 16.0GB. [2023-08-27 06:16:03,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 352.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 209.49ms. Allocated memory is still 375.4MB. Free memory was 350.8MB in the beginning and 339.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.62ms. Allocated memory is still 375.4MB. Free memory was 339.1MB in the beginning and 337.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.04ms. Allocated memory is still 375.4MB. Free memory was 337.0MB in the beginning and 335.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 429.38ms. Allocated memory is still 375.4MB. Free memory was 335.4MB in the beginning and 312.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 25005.44ms. Allocated memory was 375.4MB in the beginning and 830.5MB in the end (delta: 455.1MB). Free memory was 311.4MB in the beginning and 733.0MB in the end (delta: -421.6MB). Peak memory consumption was 37.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0s, 253 PlacesBefore, 44 PlacesAfterwards, 266 TransitionsBefore, 34 TransitionsAfterwards, 26718 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 212 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 53 ConcurrentYvCompositions, 23 ChoiceCompositions, 349 TotalNumberOfCompositions, 25801 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25801, independent: 25801, independent conditional: 0, independent unconditional: 25801, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15808, independent: 15808, independent conditional: 0, independent unconditional: 15808, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25801, independent: 9993, independent conditional: 0, independent unconditional: 9993, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 15808, unknown conditional: 0, unknown unconditional: 15808] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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, 426 locations, 40 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: 24.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 305 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 305 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 534 IncrementalHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 0 mSDtfsCounter, 534 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=9, 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, 0.4s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 4040 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 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 06:16:03,409 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...