./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/weaver/parallel-bakery-2.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 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:09:59,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:09:59,268 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:09:59,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:09:59,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:09:59,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:09:59,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:09:59,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:09:59,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:09:59,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:09:59,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:09:59,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:09:59,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:09:59,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:09:59,308 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:09:59,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:09:59,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:09:59,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:09:59,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:09:59,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:09:59,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:09:59,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:09:59,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:09:59,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:09:59,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:09:59,314 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:09:59,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:09:59,315 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:09:59,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:09:59,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:09:59,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:09:59,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:09:59,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:09:59,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:09:59,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:09:59,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:09:59,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:09:59,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:09:59,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:09:59,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:09:59,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:09:59,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:09:59,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:09:59,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:09:59,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b [2024-11-09 15:09:59,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:09:59,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:09:59,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:09:59,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:09:59,611 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:09:59,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-09 15:10:01,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:10:01,237 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:10:01,238 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-09 15:10:01,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c748b51dc/acb1a41f5e4c448593403083bb2cc93b/FLAGa4cd74883 [2024-11-09 15:10:01,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c748b51dc/acb1a41f5e4c448593403083bb2cc93b [2024-11-09 15:10:01,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:10:01,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:10:01,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:10:01,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:10:01,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:10:01,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3deb87f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01, skipping insertion in model container [2024-11-09 15:10:01,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:10:01,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:10:01,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:10:01,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:10:01,580 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:10:01,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01 WrapperNode [2024-11-09 15:10:01,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:10:01,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:10:01,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:10:01,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:10:01,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,624 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 149 [2024-11-09 15:10:01,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:10:01,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:10:01,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:10:01,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:10:01,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,637 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,647 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]. [2024-11-09 15:10:01,647 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:10:01,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:10:01,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:10:01,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:10:01,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (1/1) ... [2024-11-09 15:10:01,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:10:01,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:10:01,689 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) [2024-11-09 15:10:01,693 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 [2024-11-09 15:10:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:10:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:10:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:10:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:10:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:10:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:10:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:10:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:10:01,738 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:10:01,814 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:10:01,816 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:10:02,089 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:10:02,090 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:10:02,252 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:10:02,252 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 15:10:02,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:02 BoogieIcfgContainer [2024-11-09 15:10:02,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:10:02,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:10:02,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:10:02,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:10:02,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:10:01" (1/3) ... [2024-11-09 15:10:02,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e51f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:02, skipping insertion in model container [2024-11-09 15:10:02,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:01" (2/3) ... [2024-11-09 15:10:02,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e51f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:02, skipping insertion in model container [2024-11-09 15:10:02,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:02" (3/3) ... [2024-11-09 15:10:02,259 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-11-09 15:10:02,271 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:10:02,271 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-09 15:10:02,271 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:10:02,333 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:10:02,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 64 transitions, 142 flow [2024-11-09 15:10:02,411 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2024-11-09 15:10:02,412 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:10:02,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 62 events. 2/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-09 15:10:02,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 64 transitions, 142 flow [2024-11-09 15:10:02,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 60 transitions, 129 flow [2024-11-09 15:10:02,430 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:10:02,437 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;@5c730bf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:10:02,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 15:10:02,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:10:02,446 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-09 15:10:02,446 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:10:02,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:02,449 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:02,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:02,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash -850074253, now seen corresponding path program 1 times [2024-11-09 15:10:02,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:02,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124228167] [2024-11-09 15:10:02,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:02,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:02,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:02,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124228167] [2024-11-09 15:10:02,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124228167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:02,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:02,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:10:02,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509697427] [2024-11-09 15:10:02,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:02,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:10:02,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:10:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:10:02,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-09 15:10:02,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:10:02,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:02,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-09 15:10:02,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:03,088 INFO L124 PetriNetUnfolderBase]: 260/688 cut-off events. [2024-11-09 15:10:03,091 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 15:10:03,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 688 events. 260/688 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4267 event pairs, 138 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 1104. Up to 293 conditions per place. [2024-11-09 15:10:03,100 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 35 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-11-09 15:10:03,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 73 transitions, 240 flow [2024-11-09 15:10:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:10:03,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:10:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2024-11-09 15:10:03,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-09 15:10:03,117 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 129 flow. Second operand 3 states and 144 transitions. [2024-11-09 15:10:03,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 73 transitions, 240 flow [2024-11-09 15:10:03,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 73 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:10:03,128 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 158 flow [2024-11-09 15:10:03,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2024-11-09 15:10:03,134 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 1 predicate places. [2024-11-09 15:10:03,135 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 158 flow [2024-11-09 15:10:03,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:10:03,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:03,137 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:03,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:10:03,138 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:03,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -582498681, now seen corresponding path program 1 times [2024-11-09 15:10:03,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:03,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464046478] [2024-11-09 15:10:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:03,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:03,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464046478] [2024-11-09 15:10:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464046478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:03,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:03,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:10:03,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685268960] [2024-11-09 15:10:03,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:03,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:03,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:03,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:03,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:03,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-09 15:10:03,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-09 15:10:03,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:03,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-09 15:10:03,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:03,563 INFO L124 PetriNetUnfolderBase]: 464/1144 cut-off events. [2024-11-09 15:10:03,564 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-09 15:10:03,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2122 conditions, 1144 events. 464/1144 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7311 event pairs, 54 based on Foata normal form. 0/908 useless extension candidates. Maximal degree in co-relation 1847. Up to 357 conditions per place. [2024-11-09 15:10:03,578 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 55 selfloop transitions, 13 changer transitions 0/94 dead transitions. [2024-11-09 15:10:03,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 94 transitions, 368 flow [2024-11-09 15:10:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:10:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:10:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-11-09 15:10:03,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-09 15:10:03,583 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 158 flow. Second operand 5 states and 208 transitions. [2024-11-09 15:10:03,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 94 transitions, 368 flow [2024-11-09 15:10:03,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:03,590 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 238 flow [2024-11-09 15:10:03,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2024-11-09 15:10:03,592 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2024-11-09 15:10:03,592 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 238 flow [2024-11-09 15:10:03,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-09 15:10:03,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:03,593 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:03,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:10:03,594 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:03,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:03,595 INFO L85 PathProgramCache]: Analyzing trace with hash -850074252, now seen corresponding path program 1 times [2024-11-09 15:10:03,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:03,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090844627] [2024-11-09 15:10:03,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:03,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:03,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:03,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090844627] [2024-11-09 15:10:03,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090844627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:03,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:10:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322030958] [2024-11-09 15:10:03,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:03,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:10:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:03,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:10:03,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:10:03,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-09 15:10:03,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:10:03,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:03,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-09 15:10:03,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:03,848 INFO L124 PetriNetUnfolderBase]: 305/885 cut-off events. [2024-11-09 15:10:03,849 INFO L125 PetriNetUnfolderBase]: For 513/536 co-relation queries the response was YES. [2024-11-09 15:10:03,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1790 conditions, 885 events. 305/885 cut-off events. For 513/536 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5987 event pairs, 98 based on Foata normal form. 26/723 useless extension candidates. Maximal degree in co-relation 1451. Up to 262 conditions per place. [2024-11-09 15:10:03,856 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 35 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2024-11-09 15:10:03,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 356 flow [2024-11-09 15:10:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:10:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:10:03,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-11-09 15:10:03,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.734375 [2024-11-09 15:10:03,860 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 238 flow. Second operand 3 states and 141 transitions. [2024-11-09 15:10:03,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 356 flow [2024-11-09 15:10:03,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 354 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-09 15:10:03,866 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 266 flow [2024-11-09 15:10:03,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2024-11-09 15:10:03,867 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2024-11-09 15:10:03,867 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 266 flow [2024-11-09 15:10:03,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:10:03,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:03,868 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:03,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:10:03,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:03,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:03,870 INFO L85 PathProgramCache]: Analyzing trace with hash -195996117, now seen corresponding path program 1 times [2024-11-09 15:10:03,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:03,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436017846] [2024-11-09 15:10:03,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:03,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:03,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:03,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436017846] [2024-11-09 15:10:03,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436017846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:03,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:03,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:10:03,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410485854] [2024-11-09 15:10:03,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:03,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:10:03,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:03,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:10:03,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:10:03,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-09 15:10:03,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-09 15:10:03,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:03,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-09 15:10:03,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:04,108 INFO L124 PetriNetUnfolderBase]: 346/1064 cut-off events. [2024-11-09 15:10:04,108 INFO L125 PetriNetUnfolderBase]: For 551/590 co-relation queries the response was YES. [2024-11-09 15:10:04,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 1064 events. 346/1064 cut-off events. For 551/590 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7989 event pairs, 196 based on Foata normal form. 3/835 useless extension candidates. Maximal degree in co-relation 1220. Up to 375 conditions per place. [2024-11-09 15:10:04,117 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 39 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2024-11-09 15:10:04,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 407 flow [2024-11-09 15:10:04,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:10:04,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:10:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-09 15:10:04,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7447916666666666 [2024-11-09 15:10:04,120 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 266 flow. Second operand 3 states and 143 transitions. [2024-11-09 15:10:04,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 407 flow [2024-11-09 15:10:04,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:10:04,127 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 298 flow [2024-11-09 15:10:04,127 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-09 15:10:04,128 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2024-11-09 15:10:04,129 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 298 flow [2024-11-09 15:10:04,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-09 15:10:04,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:04,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:04,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:10:04,131 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:04,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash -195996116, now seen corresponding path program 1 times [2024-11-09 15:10:04,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:04,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322306342] [2024-11-09 15:10:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:04,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:04,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:04,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:04,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322306342] [2024-11-09 15:10:04,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322306342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:04,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:04,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:10:04,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110884387] [2024-11-09 15:10:04,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:04,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:10:04,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:04,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:10:04,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:10:04,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-09 15:10:04,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-09 15:10:04,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:04,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-09 15:10:04,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:04,374 INFO L124 PetriNetUnfolderBase]: 329/1055 cut-off events. [2024-11-09 15:10:04,374 INFO L125 PetriNetUnfolderBase]: For 716/751 co-relation queries the response was YES. [2024-11-09 15:10:04,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2260 conditions, 1055 events. 329/1055 cut-off events. For 716/751 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8031 event pairs, 130 based on Foata normal form. 8/873 useless extension candidates. Maximal degree in co-relation 1248. Up to 319 conditions per place. [2024-11-09 15:10:04,384 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 33 selfloop transitions, 12 changer transitions 0/82 dead transitions. [2024-11-09 15:10:04,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 82 transitions, 423 flow [2024-11-09 15:10:04,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:10:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:10:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-11-09 15:10:04,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-09 15:10:04,387 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 298 flow. Second operand 3 states and 140 transitions. [2024-11-09 15:10:04,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 82 transitions, 423 flow [2024-11-09 15:10:04,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:04,392 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 322 flow [2024-11-09 15:10:04,392 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-11-09 15:10:04,393 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2024-11-09 15:10:04,394 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 322 flow [2024-11-09 15:10:04,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-09 15:10:04,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:04,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:04,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:10:04,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:04,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:04,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1780912926, now seen corresponding path program 1 times [2024-11-09 15:10:04,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:04,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749560347] [2024-11-09 15:10:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:04,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:04,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:04,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749560347] [2024-11-09 15:10:04,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749560347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:04,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:04,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:10:04,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920003933] [2024-11-09 15:10:04,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:04,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:04,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:04,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-09 15:10:04,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-11-09 15:10:04,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:04,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-09 15:10:04,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:04,702 INFO L124 PetriNetUnfolderBase]: 341/1014 cut-off events. [2024-11-09 15:10:04,703 INFO L125 PetriNetUnfolderBase]: For 1255/1279 co-relation queries the response was YES. [2024-11-09 15:10:04,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2334 conditions, 1014 events. 341/1014 cut-off events. For 1255/1279 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7118 event pairs, 47 based on Foata normal form. 8/888 useless extension candidates. Maximal degree in co-relation 2083. Up to 337 conditions per place. [2024-11-09 15:10:04,710 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 60 selfloop transitions, 13 changer transitions 0/101 dead transitions. [2024-11-09 15:10:04,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 101 transitions, 585 flow [2024-11-09 15:10:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:10:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:10:04,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 201 transitions. [2024-11-09 15:10:04,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.628125 [2024-11-09 15:10:04,712 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 322 flow. Second operand 5 states and 201 transitions. [2024-11-09 15:10:04,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 101 transitions, 585 flow [2024-11-09 15:10:04,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 101 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:10:04,718 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 404 flow [2024-11-09 15:10:04,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-09 15:10:04,719 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 21 predicate places. [2024-11-09 15:10:04,719 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 404 flow [2024-11-09 15:10:04,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-11-09 15:10:04,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:04,720 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:04,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:10:04,720 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:04,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:04,721 INFO L85 PathProgramCache]: Analyzing trace with hash 171383401, now seen corresponding path program 1 times [2024-11-09 15:10:04,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:04,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843958564] [2024-11-09 15:10:04,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:04,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:04,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:04,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843958564] [2024-11-09 15:10:04,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843958564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:04,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:04,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313312753] [2024-11-09 15:10:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:04,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:04,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:04,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-09 15:10:04,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 404 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-09 15:10:04,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:04,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-09 15:10:04,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:05,039 INFO L124 PetriNetUnfolderBase]: 633/1499 cut-off events. [2024-11-09 15:10:05,039 INFO L125 PetriNetUnfolderBase]: For 1640/1670 co-relation queries the response was YES. [2024-11-09 15:10:05,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3790 conditions, 1499 events. 633/1499 cut-off events. For 1640/1670 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 10547 event pairs, 106 based on Foata normal form. 65/1467 useless extension candidates. Maximal degree in co-relation 2338. Up to 415 conditions per place. [2024-11-09 15:10:05,049 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 57 selfloop transitions, 9 changer transitions 3/109 dead transitions. [2024-11-09 15:10:05,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 644 flow [2024-11-09 15:10:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:10:05,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:10:05,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-09 15:10:05,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.659375 [2024-11-09 15:10:05,051 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 404 flow. Second operand 5 states and 211 transitions. [2024-11-09 15:10:05,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 109 transitions, 644 flow [2024-11-09 15:10:05,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 109 transitions, 642 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-09 15:10:05,059 INFO L231 Difference]: Finished difference. Result has 94 places, 84 transitions, 456 flow [2024-11-09 15:10:05,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=456, PETRI_PLACES=94, PETRI_TRANSITIONS=84} [2024-11-09 15:10:05,060 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 29 predicate places. [2024-11-09 15:10:05,061 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 84 transitions, 456 flow [2024-11-09 15:10:05,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-09 15:10:05,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:05,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:05,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:10:05,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:05,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:05,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1017918552, now seen corresponding path program 1 times [2024-11-09 15:10:05,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:05,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166335763] [2024-11-09 15:10:05,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:05,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:05,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:05,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166335763] [2024-11-09 15:10:05,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166335763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:05,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:05,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:05,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472460355] [2024-11-09 15:10:05,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:05,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:05,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:05,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:05,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:05,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-09 15:10:05,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 84 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-09 15:10:05,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:05,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-09 15:10:05,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:05,354 INFO L124 PetriNetUnfolderBase]: 539/1357 cut-off events. [2024-11-09 15:10:05,354 INFO L125 PetriNetUnfolderBase]: For 2046/2096 co-relation queries the response was YES. [2024-11-09 15:10:05,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3860 conditions, 1357 events. 539/1357 cut-off events. For 2046/2096 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 9574 event pairs, 127 based on Foata normal form. 79/1352 useless extension candidates. Maximal degree in co-relation 2583. Up to 356 conditions per place. [2024-11-09 15:10:05,365 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 63 selfloop transitions, 8 changer transitions 2/113 dead transitions. [2024-11-09 15:10:05,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 113 transitions, 731 flow [2024-11-09 15:10:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:10:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:10:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 214 transitions. [2024-11-09 15:10:05,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66875 [2024-11-09 15:10:05,368 INFO L175 Difference]: Start difference. First operand has 94 places, 84 transitions, 456 flow. Second operand 5 states and 214 transitions. [2024-11-09 15:10:05,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 113 transitions, 731 flow [2024-11-09 15:10:05,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 113 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:10:05,377 INFO L231 Difference]: Finished difference. Result has 98 places, 83 transitions, 469 flow [2024-11-09 15:10:05,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=469, PETRI_PLACES=98, PETRI_TRANSITIONS=83} [2024-11-09 15:10:05,380 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 33 predicate places. [2024-11-09 15:10:05,380 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 83 transitions, 469 flow [2024-11-09 15:10:05,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-09 15:10:05,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:05,381 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:05,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:10:05,381 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:05,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash 983537605, now seen corresponding path program 1 times [2024-11-09 15:10:05,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:05,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887653039] [2024-11-09 15:10:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:05,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:05,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:05,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887653039] [2024-11-09 15:10:05,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887653039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:05,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:05,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:05,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074984771] [2024-11-09 15:10:05,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:05,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:05,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:05,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:05,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:05,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-09 15:10:05,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 83 transitions, 469 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-09 15:10:05,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:05,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-09 15:10:05,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:05,702 INFO L124 PetriNetUnfolderBase]: 645/1564 cut-off events. [2024-11-09 15:10:05,702 INFO L125 PetriNetUnfolderBase]: For 2486/2568 co-relation queries the response was YES. [2024-11-09 15:10:05,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4493 conditions, 1564 events. 645/1564 cut-off events. For 2486/2568 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 11181 event pairs, 115 based on Foata normal form. 114/1612 useless extension candidates. Maximal degree in co-relation 2927. Up to 382 conditions per place. [2024-11-09 15:10:05,715 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 57 selfloop transitions, 10 changer transitions 3/111 dead transitions. [2024-11-09 15:10:05,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 111 transitions, 720 flow [2024-11-09 15:10:05,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:10:05,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:10:05,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-09 15:10:05,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.659375 [2024-11-09 15:10:05,717 INFO L175 Difference]: Start difference. First operand has 98 places, 83 transitions, 469 flow. Second operand 5 states and 211 transitions. [2024-11-09 15:10:05,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 111 transitions, 720 flow [2024-11-09 15:10:05,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 111 transitions, 692 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-09 15:10:05,729 INFO L231 Difference]: Finished difference. Result has 102 places, 87 transitions, 510 flow [2024-11-09 15:10:05,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=510, PETRI_PLACES=102, PETRI_TRANSITIONS=87} [2024-11-09 15:10:05,730 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 37 predicate places. [2024-11-09 15:10:05,730 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 87 transitions, 510 flow [2024-11-09 15:10:05,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-09 15:10:05,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:05,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:05,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:10:05,731 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:05,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1093917847, now seen corresponding path program 1 times [2024-11-09 15:10:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139903993] [2024-11-09 15:10:05,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:05,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:05,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:05,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139903993] [2024-11-09 15:10:05,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139903993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:05,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:05,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:05,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684263411] [2024-11-09 15:10:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:05,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:05,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:05,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:05,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:05,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-09 15:10:05,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 87 transitions, 510 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:05,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:05,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-09 15:10:05,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:06,182 INFO L124 PetriNetUnfolderBase]: 506/1452 cut-off events. [2024-11-09 15:10:06,183 INFO L125 PetriNetUnfolderBase]: For 2997/3055 co-relation queries the response was YES. [2024-11-09 15:10:06,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4320 conditions, 1452 events. 506/1452 cut-off events. For 2997/3055 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10623 event pairs, 60 based on Foata normal form. 47/1454 useless extension candidates. Maximal degree in co-relation 3961. Up to 252 conditions per place. [2024-11-09 15:10:06,192 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 69 selfloop transitions, 41 changer transitions 3/148 dead transitions. [2024-11-09 15:10:06,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 148 transitions, 1019 flow [2024-11-09 15:10:06,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 15:10:06,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 15:10:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 433 transitions. [2024-11-09 15:10:06,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5638020833333334 [2024-11-09 15:10:06,195 INFO L175 Difference]: Start difference. First operand has 102 places, 87 transitions, 510 flow. Second operand 12 states and 433 transitions. [2024-11-09 15:10:06,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 148 transitions, 1019 flow [2024-11-09 15:10:06,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 148 transitions, 1012 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-09 15:10:06,210 INFO L231 Difference]: Finished difference. Result has 112 places, 103 transitions, 716 flow [2024-11-09 15:10:06,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=716, PETRI_PLACES=112, PETRI_TRANSITIONS=103} [2024-11-09 15:10:06,211 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 47 predicate places. [2024-11-09 15:10:06,212 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 103 transitions, 716 flow [2024-11-09 15:10:06,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:06,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:06,212 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:06,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:10:06,213 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:06,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash -973449390, now seen corresponding path program 1 times [2024-11-09 15:10:06,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:06,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762252841] [2024-11-09 15:10:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:06,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:06,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:06,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762252841] [2024-11-09 15:10:06,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762252841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:06,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:06,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:06,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633370559] [2024-11-09 15:10:06,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:06,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:06,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:06,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:06,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:06,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-09 15:10:06,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 103 transitions, 716 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:06,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:06,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-09 15:10:06,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:06,710 INFO L124 PetriNetUnfolderBase]: 590/1887 cut-off events. [2024-11-09 15:10:06,710 INFO L125 PetriNetUnfolderBase]: For 5333/5548 co-relation queries the response was YES. [2024-11-09 15:10:06,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5901 conditions, 1887 events. 590/1887 cut-off events. For 5333/5548 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 15672 event pairs, 208 based on Foata normal form. 111/1957 useless extension candidates. Maximal degree in co-relation 5238. Up to 410 conditions per place. [2024-11-09 15:10:06,722 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 82 selfloop transitions, 34 changer transitions 10/161 dead transitions. [2024-11-09 15:10:06,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 161 transitions, 1351 flow [2024-11-09 15:10:06,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:10:06,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:10:06,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 336 transitions. [2024-11-09 15:10:06,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-09 15:10:06,724 INFO L175 Difference]: Start difference. First operand has 112 places, 103 transitions, 716 flow. Second operand 9 states and 336 transitions. [2024-11-09 15:10:06,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 161 transitions, 1351 flow [2024-11-09 15:10:06,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 161 transitions, 1269 flow, removed 22 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:06,739 INFO L231 Difference]: Finished difference. Result has 123 places, 116 transitions, 899 flow [2024-11-09 15:10:06,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=899, PETRI_PLACES=123, PETRI_TRANSITIONS=116} [2024-11-09 15:10:06,740 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 58 predicate places. [2024-11-09 15:10:06,741 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 116 transitions, 899 flow [2024-11-09 15:10:06,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:06,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:06,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:06,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 15:10:06,742 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:06,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:06,742 INFO L85 PathProgramCache]: Analyzing trace with hash -3906924, now seen corresponding path program 1 times [2024-11-09 15:10:06,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:06,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727141556] [2024-11-09 15:10:06,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:06,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:06,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:06,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727141556] [2024-11-09 15:10:06,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727141556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:06,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:06,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:06,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695747680] [2024-11-09 15:10:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:06,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:06,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:06,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:06,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-09 15:10:06,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 116 transitions, 899 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:06,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:06,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-09 15:10:06,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:07,326 INFO L124 PetriNetUnfolderBase]: 637/2364 cut-off events. [2024-11-09 15:10:07,327 INFO L125 PetriNetUnfolderBase]: For 7348/7706 co-relation queries the response was YES. [2024-11-09 15:10:07,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7131 conditions, 2364 events. 637/2364 cut-off events. For 7348/7706 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 22482 event pairs, 167 based on Foata normal form. 142/2461 useless extension candidates. Maximal degree in co-relation 6250. Up to 371 conditions per place. [2024-11-09 15:10:07,351 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 89 selfloop transitions, 36 changer transitions 6/169 dead transitions. [2024-11-09 15:10:07,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 169 transitions, 1510 flow [2024-11-09 15:10:07,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:10:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:10:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 334 transitions. [2024-11-09 15:10:07,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5798611111111112 [2024-11-09 15:10:07,353 INFO L175 Difference]: Start difference. First operand has 123 places, 116 transitions, 899 flow. Second operand 9 states and 334 transitions. [2024-11-09 15:10:07,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 169 transitions, 1510 flow [2024-11-09 15:10:07,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 169 transitions, 1488 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:07,381 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 1118 flow [2024-11-09 15:10:07,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1118, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-11-09 15:10:07,383 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 69 predicate places. [2024-11-09 15:10:07,383 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 1118 flow [2024-11-09 15:10:07,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:07,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:07,384 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:07,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 15:10:07,384 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:07,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:07,385 INFO L85 PathProgramCache]: Analyzing trace with hash 428818033, now seen corresponding path program 1 times [2024-11-09 15:10:07,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:07,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645856215] [2024-11-09 15:10:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:07,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:07,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:07,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:07,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645856215] [2024-11-09 15:10:07,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645856215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:07,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:07,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:07,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546196295] [2024-11-09 15:10:07,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:07,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:07,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:07,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:07,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:07,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-09 15:10:07,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:07,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:07,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-09 15:10:07,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:07,900 INFO L124 PetriNetUnfolderBase]: 490/2090 cut-off events. [2024-11-09 15:10:07,900 INFO L125 PetriNetUnfolderBase]: For 8481/8888 co-relation queries the response was YES. [2024-11-09 15:10:07,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6698 conditions, 2090 events. 490/2090 cut-off events. For 8481/8888 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 20515 event pairs, 58 based on Foata normal form. 210/2285 useless extension candidates. Maximal degree in co-relation 6348. Up to 294 conditions per place. [2024-11-09 15:10:07,916 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 74 selfloop transitions, 58 changer transitions 0/170 dead transitions. [2024-11-09 15:10:07,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 170 transitions, 1627 flow [2024-11-09 15:10:07,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 15:10:07,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 15:10:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 423 transitions. [2024-11-09 15:10:07,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55078125 [2024-11-09 15:10:07,918 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 1118 flow. Second operand 12 states and 423 transitions. [2024-11-09 15:10:07,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 170 transitions, 1627 flow [2024-11-09 15:10:07,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 170 transitions, 1520 flow, removed 17 selfloop flow, removed 6 redundant places. [2024-11-09 15:10:07,947 INFO L231 Difference]: Finished difference. Result has 139 places, 131 transitions, 1203 flow [2024-11-09 15:10:07,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1203, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2024-11-09 15:10:07,949 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 74 predicate places. [2024-11-09 15:10:07,949 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 1203 flow [2024-11-09 15:10:07,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-09 15:10:07,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:07,950 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:07,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:10:07,950 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:07,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:07,951 INFO L85 PathProgramCache]: Analyzing trace with hash 424895120, now seen corresponding path program 1 times [2024-11-09 15:10:07,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:07,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73835295] [2024-11-09 15:10:07,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:07,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:08,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:08,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:08,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73835295] [2024-11-09 15:10:08,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73835295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:08,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:08,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:10:08,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224888434] [2024-11-09 15:10:08,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:08,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:10:08,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:08,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:10:08,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:10:08,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-09 15:10:08,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 1203 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-09 15:10:08,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:08,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-09 15:10:08,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:08,412 INFO L124 PetriNetUnfolderBase]: 918/2705 cut-off events. [2024-11-09 15:10:08,412 INFO L125 PetriNetUnfolderBase]: For 9280/9395 co-relation queries the response was YES. [2024-11-09 15:10:08,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8664 conditions, 2705 events. 918/2705 cut-off events. For 9280/9395 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 24924 event pairs, 313 based on Foata normal form. 168/2781 useless extension candidates. Maximal degree in co-relation 8265. Up to 808 conditions per place. [2024-11-09 15:10:08,430 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 68 selfloop transitions, 8 changer transitions 3/156 dead transitions. [2024-11-09 15:10:08,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 156 transitions, 1542 flow [2024-11-09 15:10:08,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:10:08,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:10:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2024-11-09 15:10:08,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6375 [2024-11-09 15:10:08,432 INFO L175 Difference]: Start difference. First operand has 139 places, 131 transitions, 1203 flow. Second operand 5 states and 204 transitions. [2024-11-09 15:10:08,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 156 transitions, 1542 flow [2024-11-09 15:10:08,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 1500 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-11-09 15:10:08,462 INFO L231 Difference]: Finished difference. Result has 140 places, 128 transitions, 1166 flow [2024-11-09 15:10:08,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1166, PETRI_PLACES=140, PETRI_TRANSITIONS=128} [2024-11-09 15:10:08,463 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 75 predicate places. [2024-11-09 15:10:08,463 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 128 transitions, 1166 flow [2024-11-09 15:10:08,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-09 15:10:08,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:08,463 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:08,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 15:10:08,464 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:08,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:08,464 INFO L85 PathProgramCache]: Analyzing trace with hash 591457429, now seen corresponding path program 1 times [2024-11-09 15:10:08,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334001429] [2024-11-09 15:10:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:08,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:08,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:08,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334001429] [2024-11-09 15:10:08,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334001429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:08,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:08,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:08,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245278070] [2024-11-09 15:10:08,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:08,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:10:08,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:08,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:10:08,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:10:08,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 64 [2024-11-09 15:10:08,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 128 transitions, 1166 flow. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-09 15:10:08,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:08,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 64 [2024-11-09 15:10:08,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:08,859 INFO L124 PetriNetUnfolderBase]: 397/1799 cut-off events. [2024-11-09 15:10:08,859 INFO L125 PetriNetUnfolderBase]: For 7205/7563 co-relation queries the response was YES. [2024-11-09 15:10:08,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5736 conditions, 1799 events. 397/1799 cut-off events. For 7205/7563 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17281 event pairs, 84 based on Foata normal form. 128/1910 useless extension candidates. Maximal degree in co-relation 5462. Up to 222 conditions per place. [2024-11-09 15:10:08,871 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 79 selfloop transitions, 34 changer transitions 0/152 dead transitions. [2024-11-09 15:10:08,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 1514 flow [2024-11-09 15:10:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:10:08,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:10:08,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 240 transitions. [2024-11-09 15:10:08,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-09 15:10:08,873 INFO L175 Difference]: Start difference. First operand has 140 places, 128 transitions, 1166 flow. Second operand 6 states and 240 transitions. [2024-11-09 15:10:08,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 1514 flow [2024-11-09 15:10:08,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 152 transitions, 1483 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-09 15:10:08,903 INFO L231 Difference]: Finished difference. Result has 140 places, 127 transitions, 1226 flow [2024-11-09 15:10:08,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1226, PETRI_PLACES=140, PETRI_TRANSITIONS=127} [2024-11-09 15:10:08,904 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 75 predicate places. [2024-11-09 15:10:08,904 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 1226 flow [2024-11-09 15:10:08,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-09 15:10:08,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:08,905 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:08,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 15:10:08,905 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:08,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:08,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1557673871, now seen corresponding path program 1 times [2024-11-09 15:10:08,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:08,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153595366] [2024-11-09 15:10:08,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:08,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:08,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:08,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153595366] [2024-11-09 15:10:08,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153595366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:08,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:08,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:08,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045515779] [2024-11-09 15:10:08,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:08,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:10:08,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:10:08,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:10:09,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 64 [2024-11-09 15:10:09,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 1226 flow. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-09 15:10:09,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:09,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 64 [2024-11-09 15:10:09,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:09,268 INFO L124 PetriNetUnfolderBase]: 381/1709 cut-off events. [2024-11-09 15:10:09,268 INFO L125 PetriNetUnfolderBase]: For 7842/8193 co-relation queries the response was YES. [2024-11-09 15:10:09,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5384 conditions, 1709 events. 381/1709 cut-off events. For 7842/8193 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 16116 event pairs, 81 based on Foata normal form. 120/1816 useless extension candidates. Maximal degree in co-relation 5126. Up to 233 conditions per place. [2024-11-09 15:10:09,280 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 81 selfloop transitions, 32 changer transitions 0/152 dead transitions. [2024-11-09 15:10:09,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 1598 flow [2024-11-09 15:10:09,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:10:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:10:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2024-11-09 15:10:09,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6223958333333334 [2024-11-09 15:10:09,281 INFO L175 Difference]: Start difference. First operand has 140 places, 127 transitions, 1226 flow. Second operand 6 states and 239 transitions. [2024-11-09 15:10:09,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 1598 flow [2024-11-09 15:10:09,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 1574 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-09 15:10:09,319 INFO L231 Difference]: Finished difference. Result has 143 places, 126 transitions, 1286 flow [2024-11-09 15:10:09,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1179, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1286, PETRI_PLACES=143, PETRI_TRANSITIONS=126} [2024-11-09 15:10:09,320 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 78 predicate places. [2024-11-09 15:10:09,320 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 126 transitions, 1286 flow [2024-11-09 15:10:09,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-09 15:10:09,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:09,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:09,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 15:10:09,321 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:09,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1214213649, now seen corresponding path program 1 times [2024-11-09 15:10:09,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:09,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481957663] [2024-11-09 15:10:09,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:09,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:09,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:09,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481957663] [2024-11-09 15:10:09,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481957663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:09,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:09,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:09,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486920359] [2024-11-09 15:10:09,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:09,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:09,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:09,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:09,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:09,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-09 15:10:09,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 126 transitions, 1286 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:09,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:09,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-09 15:10:09,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:09,883 INFO L124 PetriNetUnfolderBase]: 973/2682 cut-off events. [2024-11-09 15:10:09,884 INFO L125 PetriNetUnfolderBase]: For 9523/9618 co-relation queries the response was YES. [2024-11-09 15:10:09,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8420 conditions, 2682 events. 973/2682 cut-off events. For 9523/9618 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 23356 event pairs, 242 based on Foata normal form. 138/2764 useless extension candidates. Maximal degree in co-relation 5947. Up to 627 conditions per place. [2024-11-09 15:10:09,903 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 76 selfloop transitions, 9 changer transitions 4/159 dead transitions. [2024-11-09 15:10:09,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 159 transitions, 1683 flow [2024-11-09 15:10:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:10:09,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:10:09,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2024-11-09 15:10:09,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5424107142857143 [2024-11-09 15:10:09,905 INFO L175 Difference]: Start difference. First operand has 143 places, 126 transitions, 1286 flow. Second operand 7 states and 243 transitions. [2024-11-09 15:10:09,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 159 transitions, 1683 flow [2024-11-09 15:10:09,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 159 transitions, 1672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:10:09,927 INFO L231 Difference]: Finished difference. Result has 146 places, 125 transitions, 1290 flow [2024-11-09 15:10:09,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1290, PETRI_PLACES=146, PETRI_TRANSITIONS=125} [2024-11-09 15:10:09,928 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 81 predicate places. [2024-11-09 15:10:09,928 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 125 transitions, 1290 flow [2024-11-09 15:10:09,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:09,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:09,929 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:09,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 15:10:09,929 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:09,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:09,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1609585059, now seen corresponding path program 1 times [2024-11-09 15:10:09,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:09,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214084703] [2024-11-09 15:10:09,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:09,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:10,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214084703] [2024-11-09 15:10:10,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214084703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:10,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:10,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:10,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066479146] [2024-11-09 15:10:10,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:10,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:10,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:10,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:10,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:10,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-09 15:10:10,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 125 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:10,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:10,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-09 15:10:10,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:10,408 INFO L124 PetriNetUnfolderBase]: 914/2561 cut-off events. [2024-11-09 15:10:10,408 INFO L125 PetriNetUnfolderBase]: For 10178/10241 co-relation queries the response was YES. [2024-11-09 15:10:10,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8429 conditions, 2561 events. 914/2561 cut-off events. For 10178/10241 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 22141 event pairs, 244 based on Foata normal form. 92/2599 useless extension candidates. Maximal degree in co-relation 6040. Up to 599 conditions per place. [2024-11-09 15:10:10,427 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 73 selfloop transitions, 9 changer transitions 4/156 dead transitions. [2024-11-09 15:10:10,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 156 transitions, 1675 flow [2024-11-09 15:10:10,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:10:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:10:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-11-09 15:10:10,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-09 15:10:10,429 INFO L175 Difference]: Start difference. First operand has 146 places, 125 transitions, 1290 flow. Second operand 7 states and 240 transitions. [2024-11-09 15:10:10,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 156 transitions, 1675 flow [2024-11-09 15:10:10,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 1649 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-09 15:10:10,452 INFO L231 Difference]: Finished difference. Result has 145 places, 124 transitions, 1281 flow [2024-11-09 15:10:10,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1281, PETRI_PLACES=145, PETRI_TRANSITIONS=124} [2024-11-09 15:10:10,453 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 80 predicate places. [2024-11-09 15:10:10,454 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 124 transitions, 1281 flow [2024-11-09 15:10:10,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:10,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:10,455 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:10,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 15:10:10,455 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:10,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:10,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1107292166, now seen corresponding path program 1 times [2024-11-09 15:10:10,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:10,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87086584] [2024-11-09 15:10:10,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:10,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:10,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:10,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87086584] [2024-11-09 15:10:10,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87086584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:10,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:10,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941896199] [2024-11-09 15:10:10,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:10,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:10,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:10,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:10,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:10,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-09 15:10:10,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 124 transitions, 1281 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:10,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:10,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-09 15:10:10,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:10,939 INFO L124 PetriNetUnfolderBase]: 841/2424 cut-off events. [2024-11-09 15:10:10,940 INFO L125 PetriNetUnfolderBase]: For 10040/10109 co-relation queries the response was YES. [2024-11-09 15:10:10,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7948 conditions, 2424 events. 841/2424 cut-off events. For 10040/10109 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 21053 event pairs, 193 based on Foata normal form. 112/2488 useless extension candidates. Maximal degree in co-relation 5634. Up to 625 conditions per place. [2024-11-09 15:10:10,953 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 50 selfloop transitions, 7 changer transitions 59/167 dead transitions. [2024-11-09 15:10:10,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 167 transitions, 1765 flow [2024-11-09 15:10:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:10:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:10:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2024-11-09 15:10:10,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.509375 [2024-11-09 15:10:10,955 INFO L175 Difference]: Start difference. First operand has 145 places, 124 transitions, 1281 flow. Second operand 10 states and 326 transitions. [2024-11-09 15:10:10,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 167 transitions, 1765 flow [2024-11-09 15:10:10,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 167 transitions, 1740 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-09 15:10:10,974 INFO L231 Difference]: Finished difference. Result has 147 places, 94 transitions, 912 flow [2024-11-09 15:10:10,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=912, PETRI_PLACES=147, PETRI_TRANSITIONS=94} [2024-11-09 15:10:10,975 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 82 predicate places. [2024-11-09 15:10:10,975 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 94 transitions, 912 flow [2024-11-09 15:10:10,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:10,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:10,975 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:10,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 15:10:10,976 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 15:10:10,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1896133424, now seen corresponding path program 1 times [2024-11-09 15:10:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:10,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246933609] [2024-11-09 15:10:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:10,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:11,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:11,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246933609] [2024-11-09 15:10:11,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246933609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:11,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:11,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:11,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271786103] [2024-11-09 15:10:11,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:11,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:10:11,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:11,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:10:11,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:10:11,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-09 15:10:11,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 94 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:11,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:11,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-09 15:10:11,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:11,277 INFO L124 PetriNetUnfolderBase]: 378/1128 cut-off events. [2024-11-09 15:10:11,277 INFO L125 PetriNetUnfolderBase]: For 5096/5117 co-relation queries the response was YES. [2024-11-09 15:10:11,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3873 conditions, 1128 events. 378/1128 cut-off events. For 5096/5117 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 8094 event pairs, 91 based on Foata normal form. 63/1156 useless extension candidates. Maximal degree in co-relation 3451. Up to 228 conditions per place. [2024-11-09 15:10:11,282 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2024-11-09 15:10:11,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 111 transitions, 1157 flow [2024-11-09 15:10:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:10:11,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:10:11,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 273 transitions. [2024-11-09 15:10:11,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4739583333333333 [2024-11-09 15:10:11,284 INFO L175 Difference]: Start difference. First operand has 147 places, 94 transitions, 912 flow. Second operand 9 states and 273 transitions. [2024-11-09 15:10:11,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 111 transitions, 1157 flow [2024-11-09 15:10:11,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 111 transitions, 1051 flow, removed 2 selfloop flow, removed 23 redundant places. [2024-11-09 15:10:11,296 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2024-11-09 15:10:11,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2024-11-09 15:10:11,296 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 55 predicate places. [2024-11-09 15:10:11,297 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2024-11-09 15:10:11,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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) [2024-11-09 15:10:11,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-09 15:10:11,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-09 15:10:11,300 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-09 15:10:11,301 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-09 15:10:11,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-09 15:10:11,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-09 15:10:11,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-09 15:10:11,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-09 15:10:11,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 15:10:11,302 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] [2024-11-09 15:10:11,308 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:10:11,308 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:10:11,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:10:11 BasicIcfg [2024-11-09 15:10:11,313 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:10:11,313 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:10:11,313 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:10:11,313 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:10:11,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:02" (3/4) ... [2024-11-09 15:10:11,315 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:10:11,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:10:11,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:10:11,324 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-09 15:10:11,324 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-09 15:10:11,325 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 15:10:11,325 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:10:11,410 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:10:11,413 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:10:11,413 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:10:11,414 INFO L158 Benchmark]: Toolchain (without parser) took 10152.57ms. Allocated memory was 174.1MB in the beginning and 367.0MB in the end (delta: 192.9MB). Free memory was 108.2MB in the beginning and 167.3MB in the end (delta: -59.2MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. [2024-11-09 15:10:11,414 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:10:11,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.62ms. Allocated memory is still 174.1MB. Free memory was 108.0MB in the beginning and 145.2MB in the end (delta: -37.2MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-11-09 15:10:11,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.10ms. Allocated memory is still 174.1MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:10:11,414 INFO L158 Benchmark]: Boogie Preprocessor took 32.28ms. Allocated memory is still 174.1MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:10:11,415 INFO L158 Benchmark]: RCFGBuilder took 594.09ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 111.5MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 15:10:11,415 INFO L158 Benchmark]: TraceAbstraction took 9058.84ms. Allocated memory was 174.1MB in the beginning and 367.0MB in the end (delta: 192.9MB). Free memory was 111.0MB in the beginning and 171.5MB in the end (delta: -60.6MB). Peak memory consumption was 134.5MB. Max. memory is 16.1GB. [2024-11-09 15:10:11,415 INFO L158 Benchmark]: Witness Printer took 99.83ms. Allocated memory is still 367.0MB. Free memory was 171.5MB in the beginning and 167.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:10:11,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.62ms. Allocated memory is still 174.1MB. Free memory was 108.0MB in the beginning and 145.2MB in the end (delta: -37.2MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.10ms. Allocated memory is still 174.1MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.28ms. Allocated memory is still 174.1MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.09ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 111.5MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9058.84ms. Allocated memory was 174.1MB in the beginning and 367.0MB in the end (delta: 192.9MB). Free memory was 111.0MB in the beginning and 171.5MB in the end (delta: -60.6MB). Peak memory consumption was 134.5MB. Max. memory is 16.1GB. * Witness Printer took 99.83ms. Allocated memory is still 367.0MB. Free memory was 171.5MB in the beginning and 167.3MB 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: 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, 105 locations, 18 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: 8.9s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1385 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1119 mSDsluCounter, 557 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 386 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2435 IncrementalHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 171 mSDtfsCounter, 2435 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1290occurred in iteration=17, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 1176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 15:10:11,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE