./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:38:20,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:38:20,137 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:38:20,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:38:20,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:38:20,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:38:20,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:38:20,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:38:20,202 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:38:20,202 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:38:20,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:38:20,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:38:20,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:38:20,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:38:20,204 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:38:20,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:38:20,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:38:20,211 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:38:20,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:38:20,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:38:20,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:38:20,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:38:20,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:38:20,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:38:20,213 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:38:20,214 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:38:20,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:38:20,217 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:38:20,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:38:20,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:38:20,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:38:20,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:38:20,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:38:20,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:38:20,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:38:20,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:38:20,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:38:20,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:38:20,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:38:20,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:38:20,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:38:20,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:38:20,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:38:20,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:38:20,222 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f [2024-10-24 23:38:20,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:38:20,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:38:20,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:38:20,492 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:38:20,492 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:38:20,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-10-24 23:38:21,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:38:22,154 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:38:22,155 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-10-24 23:38:22,163 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340216d1b/46ac14a3b563428985c397cbcb0f6b3a/FLAG4c13bbc4b [2024-10-24 23:38:22,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340216d1b/46ac14a3b563428985c397cbcb0f6b3a [2024-10-24 23:38:22,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:38:22,189 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:38:22,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:38:22,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:38:22,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:38:22,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3985d8bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22, skipping insertion in model container [2024-10-24 23:38:22,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:38:22,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:38:22,467 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:38:22,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:38:22,518 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:38:22,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22 WrapperNode [2024-10-24 23:38:22,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:38:22,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:38:22,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:38:22,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:38:22,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,573 INFO L138 Inliner]: procedures = 21, calls = 18, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 201 [2024-10-24 23:38:22,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:38:22,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:38:22,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:38:22,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:38:22,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,618 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 23:38:22,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:38:22,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:38:22,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:38:22,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:38:22,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (1/1) ... [2024-10-24 23:38:22,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:38:22,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:38:22,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 23:38:22,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 23:38:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:38:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 23:38:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 23:38:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 23:38:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 23:38:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:38:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:38:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:38:22,754 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:38:22,859 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:38:22,862 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:38:23,328 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:38:23,328 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:38:23,592 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:38:23,593 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 23:38:23,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:38:23 BoogieIcfgContainer [2024-10-24 23:38:23,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:38:23,596 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:38:23,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:38:23,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:38:23,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:38:22" (1/3) ... [2024-10-24 23:38:23,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74be3a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:38:23, skipping insertion in model container [2024-10-24 23:38:23,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:22" (2/3) ... [2024-10-24 23:38:23,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74be3a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:38:23, skipping insertion in model container [2024-10-24 23:38:23,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:38:23" (3/3) ... [2024-10-24 23:38:23,603 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2024-10-24 23:38:23,620 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:38:23,621 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-24 23:38:23,621 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:38:23,684 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 23:38:23,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 182 flow [2024-10-24 23:38:23,776 INFO L124 PetriNetUnfolderBase]: 8/82 cut-off events. [2024-10-24 23:38:23,778 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 23:38:23,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 82 events. 8/82 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 246 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2024-10-24 23:38:23,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 84 transitions, 182 flow [2024-10-24 23:38:23,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 169 flow [2024-10-24 23:38:23,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:38:23,815 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@575b3783, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:38:23,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-10-24 23:38:23,821 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:38:23,821 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-10-24 23:38:23,822 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:38:23,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:23,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 23:38:23,823 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:23,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash 639002098, now seen corresponding path program 1 times [2024-10-24 23:38:23,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:23,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83736052] [2024-10-24 23:38:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:23,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:24,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:24,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:24,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83736052] [2024-10-24 23:38:24,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83736052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:24,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:24,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:24,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359328657] [2024-10-24 23:38:24,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:24,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:24,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:24,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:24,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:24,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-24 23:38:24,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2024-10-24 23:38:24,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:24,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-24 23:38:24,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:24,650 INFO L124 PetriNetUnfolderBase]: 728/1568 cut-off events. [2024-10-24 23:38:24,650 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-24 23:38:24,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2745 conditions, 1568 events. 728/1568 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 10615 event pairs, 256 based on Foata normal form. 52/1258 useless extension candidates. Maximal degree in co-relation 2669. Up to 573 conditions per place. [2024-10-24 23:38:24,674 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 43 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2024-10-24 23:38:24,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 92 transitions, 292 flow [2024-10-24 23:38:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 234 transitions. [2024-10-24 23:38:24,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2024-10-24 23:38:24,693 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 169 flow. Second operand 4 states and 234 transitions. [2024-10-24 23:38:24,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 92 transitions, 292 flow [2024-10-24 23:38:24,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 92 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:24,703 INFO L231 Difference]: Finished difference. Result has 77 places, 78 transitions, 170 flow [2024-10-24 23:38:24,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2024-10-24 23:38:24,711 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2024-10-24 23:38:24,711 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 170 flow [2024-10-24 23:38:24,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2024-10-24 23:38:24,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:24,712 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 23:38:24,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:38:24,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:24,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1665770728, now seen corresponding path program 1 times [2024-10-24 23:38:24,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:24,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085897027] [2024-10-24 23:38:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:24,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:24,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:24,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085897027] [2024-10-24 23:38:24,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085897027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:24,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:24,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:24,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694176192] [2024-10-24 23:38:24,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:24,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:24,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:24,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:24,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:24,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-24 23:38:24,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-10-24 23:38:24,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:24,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-24 23:38:24,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:25,145 INFO L124 PetriNetUnfolderBase]: 648/1626 cut-off events. [2024-10-24 23:38:25,146 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-10-24 23:38:25,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2725 conditions, 1626 events. 648/1626 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 11628 event pairs, 213 based on Foata normal form. 0/1349 useless extension candidates. Maximal degree in co-relation 2089. Up to 549 conditions per place. [2024-10-24 23:38:25,157 INFO L140 encePairwiseOnDemand]: 76/84 looper letters, 40 selfloop transitions, 7 changer transitions 0/93 dead transitions. [2024-10-24 23:38:25,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 93 transitions, 296 flow [2024-10-24 23:38:25,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-10-24 23:38:25,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-10-24 23:38:25,161 INFO L175 Difference]: Start difference. First operand has 77 places, 78 transitions, 170 flow. Second operand 4 states and 240 transitions. [2024-10-24 23:38:25,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 93 transitions, 296 flow [2024-10-24 23:38:25,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 93 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:25,166 INFO L231 Difference]: Finished difference. Result has 77 places, 78 transitions, 182 flow [2024-10-24 23:38:25,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2024-10-24 23:38:25,167 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2024-10-24 23:38:25,167 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 182 flow [2024-10-24 23:38:25,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-10-24 23:38:25,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:25,168 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:25,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:38:25,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:25,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:25,170 INFO L85 PathProgramCache]: Analyzing trace with hash -170899942, now seen corresponding path program 1 times [2024-10-24 23:38:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:25,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459923984] [2024-10-24 23:38:25,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:25,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:25,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:25,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459923984] [2024-10-24 23:38:25,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459923984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:25,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:25,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:25,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908729097] [2024-10-24 23:38:25,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:25,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:25,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:25,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:25,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:25,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-10-24 23:38:25,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-10-24 23:38:25,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:25,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-10-24 23:38:25,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:25,675 INFO L124 PetriNetUnfolderBase]: 1307/2614 cut-off events. [2024-10-24 23:38:25,675 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-10-24 23:38:25,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5025 conditions, 2614 events. 1307/2614 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 18454 event pairs, 327 based on Foata normal form. 108/2259 useless extension candidates. Maximal degree in co-relation 1777. Up to 930 conditions per place. [2024-10-24 23:38:25,696 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 65 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2024-10-24 23:38:25,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 112 transitions, 430 flow [2024-10-24 23:38:25,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-10-24 23:38:25,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2024-10-24 23:38:25,702 INFO L175 Difference]: Start difference. First operand has 77 places, 78 transitions, 182 flow. Second operand 4 states and 246 transitions. [2024-10-24 23:38:25,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 112 transitions, 430 flow [2024-10-24 23:38:25,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 112 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:25,708 INFO L231 Difference]: Finished difference. Result has 79 places, 82 transitions, 240 flow [2024-10-24 23:38:25,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=79, PETRI_TRANSITIONS=82} [2024-10-24 23:38:25,709 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2024-10-24 23:38:25,710 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 82 transitions, 240 flow [2024-10-24 23:38:25,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-10-24 23:38:25,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:25,710 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:25,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:38:25,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:25,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:25,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1216168698, now seen corresponding path program 1 times [2024-10-24 23:38:25,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:25,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839884069] [2024-10-24 23:38:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:25,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:25,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839884069] [2024-10-24 23:38:25,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839884069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:25,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:25,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:25,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944229087] [2024-10-24 23:38:25,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:25,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:25,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:25,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:25,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:25,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-24 23:38:25,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 82 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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) [2024-10-24 23:38:25,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:25,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-24 23:38:25,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:26,375 INFO L124 PetriNetUnfolderBase]: 1703/3642 cut-off events. [2024-10-24 23:38:26,376 INFO L125 PetriNetUnfolderBase]: For 1412/1580 co-relation queries the response was YES. [2024-10-24 23:38:26,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7724 conditions, 3642 events. 1703/3642 cut-off events. For 1412/1580 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 27640 event pairs, 475 based on Foata normal form. 92/3364 useless extension candidates. Maximal degree in co-relation 6351. Up to 1296 conditions per place. [2024-10-24 23:38:26,402 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 73 selfloop transitions, 10 changer transitions 0/122 dead transitions. [2024-10-24 23:38:26,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 122 transitions, 560 flow [2024-10-24 23:38:26,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:38:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:38:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 292 transitions. [2024-10-24 23:38:26,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2024-10-24 23:38:26,404 INFO L175 Difference]: Start difference. First operand has 79 places, 82 transitions, 240 flow. Second operand 5 states and 292 transitions. [2024-10-24 23:38:26,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 122 transitions, 560 flow [2024-10-24 23:38:26,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 122 transitions, 560 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:38:26,414 INFO L231 Difference]: Finished difference. Result has 85 places, 84 transitions, 291 flow [2024-10-24 23:38:26,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=291, PETRI_PLACES=85, PETRI_TRANSITIONS=84} [2024-10-24 23:38:26,415 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2024-10-24 23:38:26,416 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 84 transitions, 291 flow [2024-10-24 23:38:26,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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) [2024-10-24 23:38:26,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:26,416 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:26,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:38:26,417 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:26,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:26,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1216169723, now seen corresponding path program 1 times [2024-10-24 23:38:26,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:26,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075035041] [2024-10-24 23:38:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:26,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:26,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:26,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075035041] [2024-10-24 23:38:26,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075035041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:26,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:26,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:26,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330049528] [2024-10-24 23:38:26,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:26,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:26,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:26,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:26,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:26,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-10-24 23:38:26,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-10-24 23:38:26,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:26,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-10-24 23:38:26,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:26,997 INFO L124 PetriNetUnfolderBase]: 1735/4080 cut-off events. [2024-10-24 23:38:26,997 INFO L125 PetriNetUnfolderBase]: For 2604/2747 co-relation queries the response was YES. [2024-10-24 23:38:27,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9267 conditions, 4080 events. 1735/4080 cut-off events. For 2604/2747 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 33786 event pairs, 463 based on Foata normal form. 112/3795 useless extension candidates. Maximal degree in co-relation 8285. Up to 1228 conditions per place. [2024-10-24 23:38:27,032 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 74 selfloop transitions, 13 changer transitions 0/127 dead transitions. [2024-10-24 23:38:27,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 127 transitions, 639 flow [2024-10-24 23:38:27,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:27,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-10-24 23:38:27,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7261904761904762 [2024-10-24 23:38:27,035 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 291 flow. Second operand 4 states and 244 transitions. [2024-10-24 23:38:27,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 127 transitions, 639 flow [2024-10-24 23:38:27,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 127 transitions, 629 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:27,050 INFO L231 Difference]: Finished difference. Result has 88 places, 89 transitions, 363 flow [2024-10-24 23:38:27,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=363, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2024-10-24 23:38:27,053 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 9 predicate places. [2024-10-24 23:38:27,054 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 363 flow [2024-10-24 23:38:27,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-10-24 23:38:27,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:27,055 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:27,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:38:27,056 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:27,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1002930155, now seen corresponding path program 1 times [2024-10-24 23:38:27,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:27,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891040209] [2024-10-24 23:38:27,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:27,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:27,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891040209] [2024-10-24 23:38:27,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891040209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:27,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:27,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110532992] [2024-10-24 23:38:27,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:27,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:27,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:27,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-24 23:38:27,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-10-24 23:38:27,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:27,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-24 23:38:27,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:27,622 INFO L124 PetriNetUnfolderBase]: 1495/3792 cut-off events. [2024-10-24 23:38:27,622 INFO L125 PetriNetUnfolderBase]: For 4048/4242 co-relation queries the response was YES. [2024-10-24 23:38:27,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9030 conditions, 3792 events. 1495/3792 cut-off events. For 4048/4242 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 32453 event pairs, 500 based on Foata normal form. 107/3451 useless extension candidates. Maximal degree in co-relation 3357. Up to 1105 conditions per place. [2024-10-24 23:38:27,661 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 57 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2024-10-24 23:38:27,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 618 flow [2024-10-24 23:38:27,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:27,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:27,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2024-10-24 23:38:27,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2024-10-24 23:38:27,663 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 363 flow. Second operand 4 states and 239 transitions. [2024-10-24 23:38:27,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 618 flow [2024-10-24 23:38:27,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 110 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:38:27,680 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 379 flow [2024-10-24 23:38:27,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-10-24 23:38:27,681 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-10-24 23:38:27,681 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 379 flow [2024-10-24 23:38:27,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-10-24 23:38:27,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:27,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:27,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:38:27,682 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:27,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:27,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1026094754, now seen corresponding path program 1 times [2024-10-24 23:38:27,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:27,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964106762] [2024-10-24 23:38:27,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:27,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:27,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:27,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964106762] [2024-10-24 23:38:27,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964106762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:27,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:27,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:27,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740203787] [2024-10-24 23:38:27,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:27,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:27,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:27,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-24 23:38:27,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-10-24 23:38:27,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:27,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-24 23:38:27,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:28,160 INFO L124 PetriNetUnfolderBase]: 1578/3866 cut-off events. [2024-10-24 23:38:28,161 INFO L125 PetriNetUnfolderBase]: For 5291/5485 co-relation queries the response was YES. [2024-10-24 23:38:28,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9650 conditions, 3866 events. 1578/3866 cut-off events. For 5291/5485 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 32692 event pairs, 612 based on Foata normal form. 148/3549 useless extension candidates. Maximal degree in co-relation 3427. Up to 1315 conditions per place. [2024-10-24 23:38:28,236 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 59 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-10-24 23:38:28,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 108 transitions, 625 flow [2024-10-24 23:38:28,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 230 transitions. [2024-10-24 23:38:28,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2024-10-24 23:38:28,238 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 379 flow. Second operand 4 states and 230 transitions. [2024-10-24 23:38:28,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 108 transitions, 625 flow [2024-10-24 23:38:28,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 108 transitions, 617 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:28,253 INFO L231 Difference]: Finished difference. Result has 90 places, 88 transitions, 381 flow [2024-10-24 23:38:28,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=381, PETRI_PLACES=90, PETRI_TRANSITIONS=88} [2024-10-24 23:38:28,254 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-10-24 23:38:28,254 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 88 transitions, 381 flow [2024-10-24 23:38:28,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-10-24 23:38:28,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:28,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:28,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 23:38:28,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:28,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:28,256 INFO L85 PathProgramCache]: Analyzing trace with hash -953475303, now seen corresponding path program 1 times [2024-10-24 23:38:28,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:28,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128025014] [2024-10-24 23:38:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:28,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:28,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128025014] [2024-10-24 23:38:28,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128025014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:28,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:28,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:38:28,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934441627] [2024-10-24 23:38:28,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:28,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:38:28,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:28,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:38:28,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:38:28,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-24 23:38:28,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 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) [2024-10-24 23:38:28,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:28,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-24 23:38:28,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:29,042 INFO L124 PetriNetUnfolderBase]: 2386/4746 cut-off events. [2024-10-24 23:38:29,043 INFO L125 PetriNetUnfolderBase]: For 6379/6583 co-relation queries the response was YES. [2024-10-24 23:38:29,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12761 conditions, 4746 events. 2386/4746 cut-off events. For 6379/6583 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 36465 event pairs, 681 based on Foata normal form. 263/4665 useless extension candidates. Maximal degree in co-relation 5173. Up to 1411 conditions per place. [2024-10-24 23:38:29,079 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 137 selfloop transitions, 13 changer transitions 0/185 dead transitions. [2024-10-24 23:38:29,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 185 transitions, 1157 flow [2024-10-24 23:38:29,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 23:38:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 23:38:29,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 419 transitions. [2024-10-24 23:38:29,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6235119047619048 [2024-10-24 23:38:29,082 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 381 flow. Second operand 8 states and 419 transitions. [2024-10-24 23:38:29,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 185 transitions, 1157 flow [2024-10-24 23:38:29,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 185 transitions, 1113 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:29,104 INFO L231 Difference]: Finished difference. Result has 97 places, 90 transitions, 424 flow [2024-10-24 23:38:29,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=424, PETRI_PLACES=97, PETRI_TRANSITIONS=90} [2024-10-24 23:38:29,105 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2024-10-24 23:38:29,105 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 90 transitions, 424 flow [2024-10-24 23:38:29,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 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) [2024-10-24 23:38:29,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:29,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:29,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 23:38:29,109 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:29,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:29,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1744166569, now seen corresponding path program 1 times [2024-10-24 23:38:29,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:29,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323080258] [2024-10-24 23:38:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:29,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:29,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:29,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323080258] [2024-10-24 23:38:29,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323080258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:29,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:29,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:29,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658406937] [2024-10-24 23:38:29,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:29,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:29,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:29,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:29,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:29,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-24 23:38:29,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 90 transitions, 424 flow. Second operand has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:29,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:29,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-24 23:38:29,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:29,794 INFO L124 PetriNetUnfolderBase]: 2329/4465 cut-off events. [2024-10-24 23:38:29,795 INFO L125 PetriNetUnfolderBase]: For 10286/11003 co-relation queries the response was YES. [2024-10-24 23:38:29,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13466 conditions, 4465 events. 2329/4465 cut-off events. For 10286/11003 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 32847 event pairs, 558 based on Foata normal form. 418/4625 useless extension candidates. Maximal degree in co-relation 11599. Up to 1824 conditions per place. [2024-10-24 23:38:29,833 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 85 selfloop transitions, 12 changer transitions 0/135 dead transitions. [2024-10-24 23:38:29,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 135 transitions, 924 flow [2024-10-24 23:38:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:38:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:38:29,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-10-24 23:38:29,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880952380952381 [2024-10-24 23:38:29,835 INFO L175 Difference]: Start difference. First operand has 97 places, 90 transitions, 424 flow. Second operand 5 states and 289 transitions. [2024-10-24 23:38:29,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 135 transitions, 924 flow [2024-10-24 23:38:29,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 135 transitions, 903 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:29,925 INFO L231 Difference]: Finished difference. Result has 99 places, 90 transitions, 461 flow [2024-10-24 23:38:29,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=461, PETRI_PLACES=99, PETRI_TRANSITIONS=90} [2024-10-24 23:38:29,926 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-10-24 23:38:29,926 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 90 transitions, 461 flow [2024-10-24 23:38:29,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:29,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:29,926 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:29,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 23:38:29,926 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:29,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:29,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1454354496, now seen corresponding path program 1 times [2024-10-24 23:38:29,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:29,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495442013] [2024-10-24 23:38:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:29,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:29,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:29,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495442013] [2024-10-24 23:38:29,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495442013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:29,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:29,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:38:29,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536015820] [2024-10-24 23:38:29,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:29,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:29,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:29,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:29,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:30,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-24 23:38:30,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 461 flow. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2024-10-24 23:38:30,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:30,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-24 23:38:30,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:30,687 INFO L124 PetriNetUnfolderBase]: 1830/4024 cut-off events. [2024-10-24 23:38:30,688 INFO L125 PetriNetUnfolderBase]: For 8273/8393 co-relation queries the response was YES. [2024-10-24 23:38:30,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12141 conditions, 4024 events. 1830/4024 cut-off events. For 8273/8393 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 31586 event pairs, 634 based on Foata normal form. 186/4084 useless extension candidates. Maximal degree in co-relation 11028. Up to 1247 conditions per place. [2024-10-24 23:38:30,720 INFO L140 encePairwiseOnDemand]: 70/84 looper letters, 114 selfloop transitions, 16 changer transitions 0/164 dead transitions. [2024-10-24 23:38:30,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 164 transitions, 1165 flow [2024-10-24 23:38:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:38:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:38:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 335 transitions. [2024-10-24 23:38:30,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6646825396825397 [2024-10-24 23:38:30,723 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 461 flow. Second operand 6 states and 335 transitions. [2024-10-24 23:38:30,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 164 transitions, 1165 flow [2024-10-24 23:38:30,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 164 transitions, 1121 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:30,754 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 474 flow [2024-10-24 23:38:30,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=474, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2024-10-24 23:38:30,756 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-10-24 23:38:30,757 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 474 flow [2024-10-24 23:38:30,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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) [2024-10-24 23:38:30,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:30,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:30,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 23:38:30,758 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:30,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:30,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1744165544, now seen corresponding path program 1 times [2024-10-24 23:38:30,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:30,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384907732] [2024-10-24 23:38:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:30,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:30,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:30,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384907732] [2024-10-24 23:38:30,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384907732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:30,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:30,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:30,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191285] [2024-10-24 23:38:30,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:30,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:30,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:30,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:30,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:30,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-10-24 23:38:30,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 474 flow. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2024-10-24 23:38:30,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:30,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-10-24 23:38:30,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:31,357 INFO L124 PetriNetUnfolderBase]: 1538/3401 cut-off events. [2024-10-24 23:38:31,357 INFO L125 PetriNetUnfolderBase]: For 10634/10925 co-relation queries the response was YES. [2024-10-24 23:38:31,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10944 conditions, 3401 events. 1538/3401 cut-off events. For 10634/10925 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 26460 event pairs, 498 based on Foata normal form. 300/3512 useless extension candidates. Maximal degree in co-relation 9850. Up to 1042 conditions per place. [2024-10-24 23:38:31,384 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 87 selfloop transitions, 9 changer transitions 0/132 dead transitions. [2024-10-24 23:38:31,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 132 transitions, 1000 flow [2024-10-24 23:38:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-10-24 23:38:31,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-10-24 23:38:31,385 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 474 flow. Second operand 4 states and 238 transitions. [2024-10-24 23:38:31,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 132 transitions, 1000 flow [2024-10-24 23:38:31,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 132 transitions, 943 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:31,412 INFO L231 Difference]: Finished difference. Result has 101 places, 86 transitions, 459 flow [2024-10-24 23:38:31,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=459, PETRI_PLACES=101, PETRI_TRANSITIONS=86} [2024-10-24 23:38:31,413 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-10-24 23:38:31,413 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 86 transitions, 459 flow [2024-10-24 23:38:31,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2024-10-24 23:38:31,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:31,414 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 23:38:31,414 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1765411969, now seen corresponding path program 1 times [2024-10-24 23:38:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:31,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224528074] [2024-10-24 23:38:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:31,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:31,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:31,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224528074] [2024-10-24 23:38:31,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224528074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:31,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:31,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:38:31,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203323641] [2024-10-24 23:38:31,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:31,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:38:31,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:31,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:38:31,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:38:31,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-24 23:38:31,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 86 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 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) [2024-10-24 23:38:31,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:31,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-24 23:38:31,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:32,135 INFO L124 PetriNetUnfolderBase]: 2060/3846 cut-off events. [2024-10-24 23:38:32,135 INFO L125 PetriNetUnfolderBase]: For 12628/13050 co-relation queries the response was YES. [2024-10-24 23:38:32,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12924 conditions, 3846 events. 2060/3846 cut-off events. For 12628/13050 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 27124 event pairs, 648 based on Foata normal form. 432/4104 useless extension candidates. Maximal degree in co-relation 11707. Up to 1355 conditions per place. [2024-10-24 23:38:32,171 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 152 selfloop transitions, 13 changer transitions 0/198 dead transitions. [2024-10-24 23:38:32,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 198 transitions, 1560 flow [2024-10-24 23:38:32,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 23:38:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 23:38:32,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 413 transitions. [2024-10-24 23:38:32,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2024-10-24 23:38:32,174 INFO L175 Difference]: Start difference. First operand has 101 places, 86 transitions, 459 flow. Second operand 8 states and 413 transitions. [2024-10-24 23:38:32,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 198 transitions, 1560 flow [2024-10-24 23:38:32,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 198 transitions, 1553 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:38:32,196 INFO L231 Difference]: Finished difference. Result has 110 places, 88 transitions, 509 flow [2024-10-24 23:38:32,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=509, PETRI_PLACES=110, PETRI_TRANSITIONS=88} [2024-10-24 23:38:32,199 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 31 predicate places. [2024-10-24 23:38:32,199 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 509 flow [2024-10-24 23:38:32,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 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) [2024-10-24 23:38:32,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:32,200 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:32,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 23:38:32,200 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:32,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1931664096, now seen corresponding path program 1 times [2024-10-24 23:38:32,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:32,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960506153] [2024-10-24 23:38:32,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:32,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:32,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:32,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960506153] [2024-10-24 23:38:32,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960506153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:32,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:32,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:32,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709163504] [2024-10-24 23:38:32,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:32,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:32,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:32,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-24 23:38:32,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 88 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-10-24 23:38:32,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:32,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-24 23:38:32,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:32,652 INFO L124 PetriNetUnfolderBase]: 1250/2975 cut-off events. [2024-10-24 23:38:32,652 INFO L125 PetriNetUnfolderBase]: For 11214/11526 co-relation queries the response was YES. [2024-10-24 23:38:32,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10553 conditions, 2975 events. 1250/2975 cut-off events. For 11214/11526 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 23397 event pairs, 389 based on Foata normal form. 226/3172 useless extension candidates. Maximal degree in co-relation 9520. Up to 1117 conditions per place. [2024-10-24 23:38:32,678 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 60 selfloop transitions, 7 changer transitions 0/109 dead transitions. [2024-10-24 23:38:32,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 109 transitions, 807 flow [2024-10-24 23:38:32,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-10-24 23:38:32,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-10-24 23:38:32,680 INFO L175 Difference]: Start difference. First operand has 110 places, 88 transitions, 509 flow. Second operand 4 states and 238 transitions. [2024-10-24 23:38:32,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 109 transitions, 807 flow [2024-10-24 23:38:32,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 109 transitions, 788 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:32,715 INFO L231 Difference]: Finished difference. Result has 110 places, 88 transitions, 532 flow [2024-10-24 23:38:32,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=532, PETRI_PLACES=110, PETRI_TRANSITIONS=88} [2024-10-24 23:38:32,717 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 31 predicate places. [2024-10-24 23:38:32,717 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 532 flow [2024-10-24 23:38:32,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2024-10-24 23:38:32,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:32,718 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:32,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 23:38:32,719 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:32,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash -159485955, now seen corresponding path program 1 times [2024-10-24 23:38:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007901730] [2024-10-24 23:38:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:32,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:32,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:32,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007901730] [2024-10-24 23:38:32,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007901730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:32,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:32,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:38:32,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020287153] [2024-10-24 23:38:32,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:32,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:32,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:32,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:32,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:32,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-24 23:38:32,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 88 transitions, 532 flow. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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) [2024-10-24 23:38:32,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:32,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-24 23:38:32,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:33,359 INFO L124 PetriNetUnfolderBase]: 1923/3611 cut-off events. [2024-10-24 23:38:33,359 INFO L125 PetriNetUnfolderBase]: For 16688/17041 co-relation queries the response was YES. [2024-10-24 23:38:33,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13824 conditions, 3611 events. 1923/3611 cut-off events. For 16688/17041 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 25189 event pairs, 634 based on Foata normal form. 358/3908 useless extension candidates. Maximal degree in co-relation 12637. Up to 1331 conditions per place. [2024-10-24 23:38:33,388 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 135 selfloop transitions, 16 changer transitions 0/182 dead transitions. [2024-10-24 23:38:33,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 182 transitions, 1582 flow [2024-10-24 23:38:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:38:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:38:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 330 transitions. [2024-10-24 23:38:33,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-10-24 23:38:33,391 INFO L175 Difference]: Start difference. First operand has 110 places, 88 transitions, 532 flow. Second operand 6 states and 330 transitions. [2024-10-24 23:38:33,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 182 transitions, 1582 flow [2024-10-24 23:38:33,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 182 transitions, 1540 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:33,438 INFO L231 Difference]: Finished difference. Result has 112 places, 90 transitions, 571 flow [2024-10-24 23:38:33,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=571, PETRI_PLACES=112, PETRI_TRANSITIONS=90} [2024-10-24 23:38:33,439 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 33 predicate places. [2024-10-24 23:38:33,439 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 90 transitions, 571 flow [2024-10-24 23:38:33,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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) [2024-10-24 23:38:33,440 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:33,440 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:33,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 23:38:33,440 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:33,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash -247986208, now seen corresponding path program 1 times [2024-10-24 23:38:33,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:33,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532429311] [2024-10-24 23:38:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:33,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:33,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532429311] [2024-10-24 23:38:33,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532429311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:33,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:33,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:33,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149035397] [2024-10-24 23:38:33,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:33,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:33,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:33,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:33,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:33,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-24 23:38:33,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 90 transitions, 571 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2024-10-24 23:38:33,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:33,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-24 23:38:33,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:33,845 INFO L124 PetriNetUnfolderBase]: 1191/2838 cut-off events. [2024-10-24 23:38:33,845 INFO L125 PetriNetUnfolderBase]: For 12859/13070 co-relation queries the response was YES. [2024-10-24 23:38:33,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10833 conditions, 2838 events. 1191/2838 cut-off events. For 12859/13070 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22076 event pairs, 491 based on Foata normal form. 213/3006 useless extension candidates. Maximal degree in co-relation 9817. Up to 1025 conditions per place. [2024-10-24 23:38:33,872 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 63 selfloop transitions, 7 changer transitions 0/112 dead transitions. [2024-10-24 23:38:33,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 886 flow [2024-10-24 23:38:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:33,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 227 transitions. [2024-10-24 23:38:33,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755952380952381 [2024-10-24 23:38:33,874 INFO L175 Difference]: Start difference. First operand has 112 places, 90 transitions, 571 flow. Second operand 4 states and 227 transitions. [2024-10-24 23:38:33,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 886 flow [2024-10-24 23:38:33,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 112 transitions, 813 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-10-24 23:38:33,909 INFO L231 Difference]: Finished difference. Result has 108 places, 89 transitions, 540 flow [2024-10-24 23:38:33,910 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=540, PETRI_PLACES=108, PETRI_TRANSITIONS=89} [2024-10-24 23:38:33,911 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 29 predicate places. [2024-10-24 23:38:33,911 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 89 transitions, 540 flow [2024-10-24 23:38:33,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2024-10-24 23:38:33,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:33,912 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:33,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 23:38:33,912 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:33,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:33,913 INFO L85 PathProgramCache]: Analyzing trace with hash 902361858, now seen corresponding path program 1 times [2024-10-24 23:38:33,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:33,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772491834] [2024-10-24 23:38:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:33,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:33,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:33,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772491834] [2024-10-24 23:38:33,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772491834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:33,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:33,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:33,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589053992] [2024-10-24 23:38:33,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:33,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:33,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:33,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:33,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:34,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-24 23:38:34,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 89 transitions, 540 flow. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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) [2024-10-24 23:38:34,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:34,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-24 23:38:34,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:34,516 INFO L124 PetriNetUnfolderBase]: 1899/3586 cut-off events. [2024-10-24 23:38:34,516 INFO L125 PetriNetUnfolderBase]: For 13043/13369 co-relation queries the response was YES. [2024-10-24 23:38:34,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13305 conditions, 3586 events. 1899/3586 cut-off events. For 13043/13369 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 24895 event pairs, 389 based on Foata normal form. 320/3885 useless extension candidates. Maximal degree in co-relation 12035. Up to 1615 conditions per place. [2024-10-24 23:38:34,539 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 90 selfloop transitions, 12 changer transitions 0/134 dead transitions. [2024-10-24 23:38:34,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 134 transitions, 1026 flow [2024-10-24 23:38:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:38:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:38:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2024-10-24 23:38:34,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-10-24 23:38:34,541 INFO L175 Difference]: Start difference. First operand has 108 places, 89 transitions, 540 flow. Second operand 5 states and 288 transitions. [2024-10-24 23:38:34,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 134 transitions, 1026 flow [2024-10-24 23:38:34,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 134 transitions, 982 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-24 23:38:34,574 INFO L231 Difference]: Finished difference. Result has 105 places, 88 transitions, 516 flow [2024-10-24 23:38:34,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=516, PETRI_PLACES=105, PETRI_TRANSITIONS=88} [2024-10-24 23:38:34,575 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 26 predicate places. [2024-10-24 23:38:34,575 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 88 transitions, 516 flow [2024-10-24 23:38:34,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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) [2024-10-24 23:38:34,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:34,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:34,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 23:38:34,576 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:34,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:34,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1514185725, now seen corresponding path program 1 times [2024-10-24 23:38:34,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:34,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023870045] [2024-10-24 23:38:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:34,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:34,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:34,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023870045] [2024-10-24 23:38:34,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023870045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:34,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:34,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:34,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124307853] [2024-10-24 23:38:34,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:34,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:34,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:34,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:34,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:34,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-24 23:38:34,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 88 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2024-10-24 23:38:34,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:34,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-24 23:38:34,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:34,946 INFO L124 PetriNetUnfolderBase]: 1313/2965 cut-off events. [2024-10-24 23:38:34,947 INFO L125 PetriNetUnfolderBase]: For 11460/11691 co-relation queries the response was YES. [2024-10-24 23:38:34,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10665 conditions, 2965 events. 1313/2965 cut-off events. For 11460/11691 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 22685 event pairs, 422 based on Foata normal form. 209/3134 useless extension candidates. Maximal degree in co-relation 9817. Up to 1152 conditions per place. [2024-10-24 23:38:34,967 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 65 selfloop transitions, 7 changer transitions 0/111 dead transitions. [2024-10-24 23:38:34,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 111 transitions, 846 flow [2024-10-24 23:38:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:34,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:34,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-10-24 23:38:34,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2024-10-24 23:38:34,969 INFO L175 Difference]: Start difference. First operand has 105 places, 88 transitions, 516 flow. Second operand 4 states and 237 transitions. [2024-10-24 23:38:34,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 111 transitions, 846 flow [2024-10-24 23:38:34,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 111 transitions, 827 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:34,995 INFO L231 Difference]: Finished difference. Result has 106 places, 88 transitions, 539 flow [2024-10-24 23:38:34,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=539, PETRI_PLACES=106, PETRI_TRANSITIONS=88} [2024-10-24 23:38:34,996 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 27 predicate places. [2024-10-24 23:38:34,996 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 88 transitions, 539 flow [2024-10-24 23:38:34,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2024-10-24 23:38:34,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:34,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:34,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 23:38:34,997 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:34,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:34,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2091552733, now seen corresponding path program 1 times [2024-10-24 23:38:34,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:34,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464092215] [2024-10-24 23:38:34,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:34,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:35,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:35,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464092215] [2024-10-24 23:38:35,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464092215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:35,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:35,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:38:35,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102371677] [2024-10-24 23:38:35,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:35,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:38:35,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:35,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:38:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:38:35,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-24 23:38:35,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 88 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-10-24 23:38:35,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:35,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-24 23:38:35,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:35,721 INFO L124 PetriNetUnfolderBase]: 1624/3248 cut-off events. [2024-10-24 23:38:35,721 INFO L125 PetriNetUnfolderBase]: For 13864/14123 co-relation queries the response was YES. [2024-10-24 23:38:35,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12366 conditions, 3248 events. 1624/3248 cut-off events. For 13864/14123 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 23213 event pairs, 520 based on Foata normal form. 281/3472 useless extension candidates. Maximal degree in co-relation 11595. Up to 1079 conditions per place. [2024-10-24 23:38:35,745 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 142 selfloop transitions, 14 changer transitions 18/207 dead transitions. [2024-10-24 23:38:35,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 207 transitions, 1783 flow [2024-10-24 23:38:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 23:38:35,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 23:38:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 410 transitions. [2024-10-24 23:38:35,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6101190476190477 [2024-10-24 23:38:35,749 INFO L175 Difference]: Start difference. First operand has 106 places, 88 transitions, 539 flow. Second operand 8 states and 410 transitions. [2024-10-24 23:38:35,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 207 transitions, 1783 flow [2024-10-24 23:38:35,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 207 transitions, 1744 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:35,782 INFO L231 Difference]: Finished difference. Result has 109 places, 84 transitions, 518 flow [2024-10-24 23:38:35,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=518, PETRI_PLACES=109, PETRI_TRANSITIONS=84} [2024-10-24 23:38:35,782 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2024-10-24 23:38:35,783 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 84 transitions, 518 flow [2024-10-24 23:38:35,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-10-24 23:38:35,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:35,783 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:35,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 23:38:35,784 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:35,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:35,785 INFO L85 PathProgramCache]: Analyzing trace with hash -304913784, now seen corresponding path program 1 times [2024-10-24 23:38:35,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:35,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992733154] [2024-10-24 23:38:35,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:35,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:35,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992733154] [2024-10-24 23:38:35,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992733154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:35,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:35,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:35,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217993788] [2024-10-24 23:38:35,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:35,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:35,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-24 23:38:35,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 84 transitions, 518 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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) [2024-10-24 23:38:35,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:35,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-24 23:38:35,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:36,218 INFO L124 PetriNetUnfolderBase]: 1117/2675 cut-off events. [2024-10-24 23:38:36,219 INFO L125 PetriNetUnfolderBase]: For 11297/11480 co-relation queries the response was YES. [2024-10-24 23:38:36,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9738 conditions, 2675 events. 1117/2675 cut-off events. For 11297/11480 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 20852 event pairs, 475 based on Foata normal form. 204/2839 useless extension candidates. Maximal degree in co-relation 8866. Up to 925 conditions per place. [2024-10-24 23:38:36,238 INFO L140 encePairwiseOnDemand]: 81/84 looper letters, 64 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2024-10-24 23:38:36,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 106 transitions, 835 flow [2024-10-24 23:38:36,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:36,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:36,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-10-24 23:38:36,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-10-24 23:38:36,241 INFO L175 Difference]: Start difference. First operand has 109 places, 84 transitions, 518 flow. Second operand 4 states and 225 transitions. [2024-10-24 23:38:36,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 106 transitions, 835 flow [2024-10-24 23:38:36,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 106 transitions, 758 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-10-24 23:38:36,268 INFO L231 Difference]: Finished difference. Result has 101 places, 83 transitions, 474 flow [2024-10-24 23:38:36,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=474, PETRI_PLACES=101, PETRI_TRANSITIONS=83} [2024-10-24 23:38:36,268 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-10-24 23:38:36,269 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 83 transitions, 474 flow [2024-10-24 23:38:36,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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) [2024-10-24 23:38:36,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:36,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:36,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 23:38:36,269 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:36,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:36,270 INFO L85 PathProgramCache]: Analyzing trace with hash -862392961, now seen corresponding path program 1 times [2024-10-24 23:38:36,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:36,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276046598] [2024-10-24 23:38:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:36,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:36,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:36,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276046598] [2024-10-24 23:38:36,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276046598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:36,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:36,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:36,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463129241] [2024-10-24 23:38:36,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:36,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:36,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:36,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:36,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:36,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-24 23:38:36,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 83 transitions, 474 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-10-24 23:38:36,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:36,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-24 23:38:36,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:36,799 INFO L124 PetriNetUnfolderBase]: 1849/3394 cut-off events. [2024-10-24 23:38:36,799 INFO L125 PetriNetUnfolderBase]: For 11160/11439 co-relation queries the response was YES. [2024-10-24 23:38:36,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12109 conditions, 3394 events. 1849/3394 cut-off events. For 11160/11439 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 22969 event pairs, 369 based on Foata normal form. 315/3684 useless extension candidates. Maximal degree in co-relation 10733. Up to 1666 conditions per place. [2024-10-24 23:38:36,817 INFO L140 encePairwiseOnDemand]: 76/84 looper letters, 89 selfloop transitions, 9 changer transitions 2/128 dead transitions. [2024-10-24 23:38:36,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 128 transitions, 974 flow [2024-10-24 23:38:36,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:38:36,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:38:36,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 285 transitions. [2024-10-24 23:38:36,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-10-24 23:38:36,819 INFO L175 Difference]: Start difference. First operand has 101 places, 83 transitions, 474 flow. Second operand 5 states and 285 transitions. [2024-10-24 23:38:36,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 128 transitions, 974 flow [2024-10-24 23:38:36,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 128 transitions, 950 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 23:38:36,839 INFO L231 Difference]: Finished difference. Result has 100 places, 80 transitions, 454 flow [2024-10-24 23:38:36,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=100, PETRI_TRANSITIONS=80} [2024-10-24 23:38:36,840 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-10-24 23:38:36,840 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 80 transitions, 454 flow [2024-10-24 23:38:36,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2024-10-24 23:38:36,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:36,840 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:36,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 23:38:36,840 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-24 23:38:36,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:36,841 INFO L85 PathProgramCache]: Analyzing trace with hash -964377237, now seen corresponding path program 1 times [2024-10-24 23:38:36,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:36,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397892510] [2024-10-24 23:38:36,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:36,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:36,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:36,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:36,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397892510] [2024-10-24 23:38:36,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397892510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:36,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:36,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:38:36,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655097306] [2024-10-24 23:38:36,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:36,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:38:36,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:36,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:38:36,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:38:36,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-24 23:38:36,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 80 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 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) [2024-10-24 23:38:36,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:36,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-24 23:38:36,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:37,421 INFO L124 PetriNetUnfolderBase]: 1361/2709 cut-off events. [2024-10-24 23:38:37,422 INFO L125 PetriNetUnfolderBase]: For 8457/8660 co-relation queries the response was YES. [2024-10-24 23:38:37,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9806 conditions, 2709 events. 1361/2709 cut-off events. For 8457/8660 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 18833 event pairs, 475 based on Foata normal form. 255/2937 useless extension candidates. Maximal degree in co-relation 9787. Up to 925 conditions per place. [2024-10-24 23:38:37,434 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 0 selfloop transitions, 0 changer transitions 194/194 dead transitions. [2024-10-24 23:38:37,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 194 transitions, 1558 flow [2024-10-24 23:38:37,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 23:38:37,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 23:38:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 402 transitions. [2024-10-24 23:38:37,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-10-24 23:38:37,436 INFO L175 Difference]: Start difference. First operand has 100 places, 80 transitions, 454 flow. Second operand 8 states and 402 transitions. [2024-10-24 23:38:37,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 194 transitions, 1558 flow [2024-10-24 23:38:37,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 194 transitions, 1550 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:37,455 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2024-10-24 23:38:37,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2024-10-24 23:38:37,455 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2024-10-24 23:38:37,456 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2024-10-24 23:38:37,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 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) [2024-10-24 23:38:37,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-10-24 23:38:37,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-10-24 23:38:37,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-10-24 23:38:37,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-10-24 23:38:37,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-10-24 23:38:37,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-10-24 23:38:37,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-10-24 23:38:37,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-10-24 23:38:37,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-10-24 23:38:37,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-10-24 23:38:37,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-10-24 23:38:37,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-10-24 23:38:37,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 23:38:37,465 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:37,471 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:38:37,472 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:38:37,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:38:37 BasicIcfg [2024-10-24 23:38:37,477 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:38:37,477 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:38:37,477 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:38:37,477 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:38:37,478 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:38:23" (3/4) ... [2024-10-24 23:38:37,479 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:38:37,482 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-24 23:38:37,482 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-24 23:38:37,487 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2024-10-24 23:38:37,487 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-24 23:38:37,487 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 23:38:37,487 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 23:38:37,575 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:38:37,575 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:38:37,575 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:38:37,576 INFO L158 Benchmark]: Toolchain (without parser) took 15387.12ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 870.3MB). Free memory was 114.8MB in the beginning and 867.7MB in the end (delta: -752.8MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. [2024-10-24 23:38:37,576 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 81.2MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:38:37,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.29ms. Allocated memory is still 182.5MB. Free memory was 114.6MB in the beginning and 101.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 23:38:37,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.54ms. Allocated memory is still 182.5MB. Free memory was 101.5MB in the beginning and 99.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:38:37,577 INFO L158 Benchmark]: Boogie Preprocessor took 82.77ms. Allocated memory is still 182.5MB. Free memory was 99.3MB in the beginning and 96.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:38:37,577 INFO L158 Benchmark]: RCFGBuilder took 935.98ms. Allocated memory is still 182.5MB. Free memory was 96.8MB in the beginning and 107.8MB in the end (delta: -11.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 23:38:37,578 INFO L158 Benchmark]: TraceAbstraction took 13880.33ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 870.3MB). Free memory was 107.0MB in the beginning and 872.9MB in the end (delta: -765.9MB). Peak memory consumption was 620.4MB. Max. memory is 16.1GB. [2024-10-24 23:38:37,578 INFO L158 Benchmark]: Witness Printer took 98.21ms. Allocated memory is still 1.1GB. Free memory was 871.9MB in the beginning and 867.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:38:37,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 81.2MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.29ms. Allocated memory is still 182.5MB. Free memory was 114.6MB in the beginning and 101.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.54ms. Allocated memory is still 182.5MB. Free memory was 101.5MB in the beginning and 99.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.77ms. Allocated memory is still 182.5MB. Free memory was 99.3MB in the beginning and 96.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 935.98ms. Allocated memory is still 182.5MB. Free memory was 96.8MB in the beginning and 107.8MB in the end (delta: -11.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13880.33ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 870.3MB). Free memory was 107.0MB in the beginning and 872.9MB in the end (delta: -765.9MB). Peak memory consumption was 620.4MB. Max. memory is 16.1GB. * Witness Printer took 98.21ms. Allocated memory is still 1.1GB. Free memory was 871.9MB in the beginning and 867.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 147 locations, 50 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: 13.7s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2547 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1951 mSDsluCounter, 467 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 288 mSDsCounter, 274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3917 IncrementalHoareTripleChecker+Invalid, 4191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 274 mSolverCounterUnsat, 179 mSDtfsCounter, 3917 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=14, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 23:38:37,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE