./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 23:58:40,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 23:58:41,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 23:58:41,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 23:58:41,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 23:58:41,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 23:58:41,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 23:58:41,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 23:58:41,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 23:58:41,128 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 23:58:41,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 23:58:41,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 23:58:41,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 23:58:41,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 23:58:41,130 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 23:58:41,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 23:58:41,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 23:58:41,131 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 23:58:41,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 23:58:41,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 23:58:41,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 23:58:41,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 23:58:41,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 23:58:41,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 23:58:41,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 23:58:41,135 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 23:58:41,135 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 23:58:41,135 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 23:58:41,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 23:58:41,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 23:58:41,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 23:58:41,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 23:58:41,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 23:58:41,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 23:58:41,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:58:41,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 23:58:41,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 23:58:41,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 23:58:41,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 23:58:41,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 23:58:41,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 23:58:41,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 23:58:41,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 23:58:41,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 23:58:41,141 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77faa562cc80dab159af187984ab1ce484b13225711253aedc5512d7a84dfd3f [2024-10-14 23:58:41,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 23:58:41,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 23:58:41,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 23:58:41,447 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 23:58:41,448 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 23:58:41,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-10-14 23:58:42,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 23:58:43,098 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 23:58:43,099 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-symm.wvr.c [2024-10-14 23:58:43,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708766157/700e147bea1d4589b558e6808e74ed2a/FLAGfa071374d [2024-10-14 23:58:43,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708766157/700e147bea1d4589b558e6808e74ed2a [2024-10-14 23:58:43,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 23:58:43,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 23:58:43,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 23:58:43,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 23:58:43,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 23:58:43,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e23acd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43, skipping insertion in model container [2024-10-14 23:58:43,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 23:58:43,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:58:43,376 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 23:58:43,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 23:58:43,420 INFO L204 MainTranslator]: Completed translation [2024-10-14 23:58:43,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43 WrapperNode [2024-10-14 23:58:43,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 23:58:43,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 23:58:43,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 23:58:43,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 23:58:43,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,464 INFO L138 Inliner]: procedures = 21, calls = 18, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 201 [2024-10-14 23:58:43,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 23:58:43,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 23:58:43,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 23:58:43,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 23:58:43,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,508 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 23:58:43,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 23:58:43,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 23:58:43,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 23:58:43,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 23:58:43,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (1/1) ... [2024-10-14 23:58:43,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 23:58:43,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 23:58:43,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 23:58:43,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 23:58:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 23:58:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 23:58:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 23:58:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 23:58:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 23:58:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 23:58:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 23:58:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 23:58:43,610 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 23:58:43,693 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 23:58:43,696 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 23:58:44,148 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 23:58:44,149 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 23:58:44,426 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 23:58:44,426 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 23:58:44,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:44 BoogieIcfgContainer [2024-10-14 23:58:44,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 23:58:44,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 23:58:44,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 23:58:44,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 23:58:44,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:58:43" (1/3) ... [2024-10-14 23:58:44,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4987e3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:58:44, skipping insertion in model container [2024-10-14 23:58:44,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:43" (2/3) ... [2024-10-14 23:58:44,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4987e3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:58:44, skipping insertion in model container [2024-10-14 23:58:44,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:44" (3/3) ... [2024-10-14 23:58:44,441 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2024-10-14 23:58:44,462 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 23:58:44,462 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-14 23:58:44,462 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 23:58:44,546 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 23:58:44,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 84 transitions, 182 flow [2024-10-14 23:58:44,632 INFO L124 PetriNetUnfolderBase]: 8/82 cut-off events. [2024-10-14 23:58:44,633 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 23:58:44,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 82 events. 8/82 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 246 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2024-10-14 23:58:44,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 84 transitions, 182 flow [2024-10-14 23:58:44,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 169 flow [2024-10-14 23:58:44,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 23:58:44,659 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;@5d1f854d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 23:58:44,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-10-14 23:58:44,671 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 23:58:44,672 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-10-14 23:58:44,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 23:58:44,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:44,673 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 23:58:44,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:44,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:44,681 INFO L85 PathProgramCache]: Analyzing trace with hash 639002098, now seen corresponding path program 1 times [2024-10-14 23:58:44,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:44,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922181737] [2024-10-14 23:58:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:45,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:45,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922181737] [2024-10-14 23:58:45,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922181737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:45,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:45,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:45,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926056157] [2024-10-14 23:58:45,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:45,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:45,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:45,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:45,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-14 23:58:45,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:45,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:45,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-14 23:58:45,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:45,440 INFO L124 PetriNetUnfolderBase]: 728/1568 cut-off events. [2024-10-14 23:58:45,440 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-14 23:58:45,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2745 conditions, 1568 events. 728/1568 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 10615 event pairs, 256 based on Foata normal form. 52/1258 useless extension candidates. Maximal degree in co-relation 2669. Up to 573 conditions per place. [2024-10-14 23:58:45,459 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 43 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2024-10-14 23:58:45,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 92 transitions, 292 flow [2024-10-14 23:58:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:45,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:45,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 234 transitions. [2024-10-14 23:58:45,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2024-10-14 23:58:45,475 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 169 flow. Second operand 4 states and 234 transitions. [2024-10-14 23:58:45,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 92 transitions, 292 flow [2024-10-14 23:58:45,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 92 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:45,491 INFO L231 Difference]: Finished difference. Result has 77 places, 78 transitions, 170 flow [2024-10-14 23:58:45,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2024-10-14 23:58:45,498 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2024-10-14 23:58:45,500 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 170 flow [2024-10-14 23:58:45,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:45,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:45,501 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 23:58:45,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 23:58:45,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:45,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1665770728, now seen corresponding path program 1 times [2024-10-14 23:58:45,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:45,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036798464] [2024-10-14 23:58:45,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:45,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:45,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036798464] [2024-10-14 23:58:45,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036798464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:45,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:45,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:45,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870135940] [2024-10-14 23:58:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:45,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:45,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:45,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:45,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:45,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-14 23:58:45,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:45,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:45,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-14 23:58:45,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:45,955 INFO L124 PetriNetUnfolderBase]: 648/1626 cut-off events. [2024-10-14 23:58:45,955 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-10-14 23:58:45,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2725 conditions, 1626 events. 648/1626 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 11628 event pairs, 213 based on Foata normal form. 0/1349 useless extension candidates. Maximal degree in co-relation 2089. Up to 549 conditions per place. [2024-10-14 23:58:45,971 INFO L140 encePairwiseOnDemand]: 76/84 looper letters, 40 selfloop transitions, 7 changer transitions 0/93 dead transitions. [2024-10-14 23:58:45,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 93 transitions, 296 flow [2024-10-14 23:58:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-10-14 23:58:45,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-10-14 23:58:45,974 INFO L175 Difference]: Start difference. First operand has 77 places, 78 transitions, 170 flow. Second operand 4 states and 240 transitions. [2024-10-14 23:58:45,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 93 transitions, 296 flow [2024-10-14 23:58:45,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 93 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:45,979 INFO L231 Difference]: Finished difference. Result has 77 places, 78 transitions, 182 flow [2024-10-14 23:58:45,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2024-10-14 23:58:45,981 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places. [2024-10-14 23:58:45,981 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 182 flow [2024-10-14 23:58:45,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:45,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:45,982 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:45,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 23:58:45,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:45,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash -170899942, now seen corresponding path program 1 times [2024-10-14 23:58:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524977924] [2024-10-14 23:58:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:46,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:46,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524977924] [2024-10-14 23:58:46,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524977924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:46,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:46,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:46,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035620100] [2024-10-14 23:58:46,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:46,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:46,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:46,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-10-14 23:58:46,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:46,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:46,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-10-14 23:58:46,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:46,506 INFO L124 PetriNetUnfolderBase]: 1307/2614 cut-off events. [2024-10-14 23:58:46,507 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-10-14 23:58:46,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5025 conditions, 2614 events. 1307/2614 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 18454 event pairs, 327 based on Foata normal form. 108/2259 useless extension candidates. Maximal degree in co-relation 1777. Up to 930 conditions per place. [2024-10-14 23:58:46,526 INFO L140 encePairwiseOnDemand]: 69/84 looper letters, 65 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2024-10-14 23:58:46,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 112 transitions, 430 flow [2024-10-14 23:58:46,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-10-14 23:58:46,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7321428571428571 [2024-10-14 23:58:46,530 INFO L175 Difference]: Start difference. First operand has 77 places, 78 transitions, 182 flow. Second operand 4 states and 246 transitions. [2024-10-14 23:58:46,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 112 transitions, 430 flow [2024-10-14 23:58:46,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 112 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:46,535 INFO L231 Difference]: Finished difference. Result has 79 places, 82 transitions, 240 flow [2024-10-14 23:58:46,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=79, PETRI_TRANSITIONS=82} [2024-10-14 23:58:46,537 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2024-10-14 23:58:46,537 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 82 transitions, 240 flow [2024-10-14 23:58:46,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:46,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:46,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:46,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 23:58:46,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:46,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:46,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1216168698, now seen corresponding path program 1 times [2024-10-14 23:58:46,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:46,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708235325] [2024-10-14 23:58:46,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:46,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:46,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:46,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708235325] [2024-10-14 23:58:46,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708235325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:46,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:46,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:46,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361754938] [2024-10-14 23:58:46,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:46,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:46,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:46,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:46,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:46,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-14 23:58:46,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 82 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:46,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:46,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-14 23:58:46,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:47,184 INFO L124 PetriNetUnfolderBase]: 1703/3642 cut-off events. [2024-10-14 23:58:47,185 INFO L125 PetriNetUnfolderBase]: For 1412/1580 co-relation queries the response was YES. [2024-10-14 23:58:47,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7724 conditions, 3642 events. 1703/3642 cut-off events. For 1412/1580 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 27640 event pairs, 475 based on Foata normal form. 92/3364 useless extension candidates. Maximal degree in co-relation 6351. Up to 1296 conditions per place. [2024-10-14 23:58:47,215 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 73 selfloop transitions, 10 changer transitions 0/122 dead transitions. [2024-10-14 23:58:47,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 122 transitions, 560 flow [2024-10-14 23:58:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:58:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:58:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 292 transitions. [2024-10-14 23:58:47,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2024-10-14 23:58:47,218 INFO L175 Difference]: Start difference. First operand has 79 places, 82 transitions, 240 flow. Second operand 5 states and 292 transitions. [2024-10-14 23:58:47,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 122 transitions, 560 flow [2024-10-14 23:58:47,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 122 transitions, 560 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 23:58:47,231 INFO L231 Difference]: Finished difference. Result has 85 places, 84 transitions, 291 flow [2024-10-14 23:58:47,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=291, PETRI_PLACES=85, PETRI_TRANSITIONS=84} [2024-10-14 23:58:47,234 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2024-10-14 23:58:47,235 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 84 transitions, 291 flow [2024-10-14 23:58:47,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:47,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:47,235 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:47,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 23:58:47,236 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:47,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1216169723, now seen corresponding path program 1 times [2024-10-14 23:58:47,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:47,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237598345] [2024-10-14 23:58:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:47,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:47,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:47,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237598345] [2024-10-14 23:58:47,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237598345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:47,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:47,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:47,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706244422] [2024-10-14 23:58:47,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:47,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:47,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:47,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:47,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:47,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-10-14 23:58:47,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:47,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:47,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-10-14 23:58:47,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:47,815 INFO L124 PetriNetUnfolderBase]: 1735/4080 cut-off events. [2024-10-14 23:58:47,815 INFO L125 PetriNetUnfolderBase]: For 2604/2747 co-relation queries the response was YES. [2024-10-14 23:58:47,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9267 conditions, 4080 events. 1735/4080 cut-off events. For 2604/2747 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 33786 event pairs, 463 based on Foata normal form. 112/3795 useless extension candidates. Maximal degree in co-relation 8285. Up to 1228 conditions per place. [2024-10-14 23:58:47,858 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 74 selfloop transitions, 13 changer transitions 0/127 dead transitions. [2024-10-14 23:58:47,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 127 transitions, 639 flow [2024-10-14 23:58:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-10-14 23:58:47,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7261904761904762 [2024-10-14 23:58:47,863 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 291 flow. Second operand 4 states and 244 transitions. [2024-10-14 23:58:47,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 127 transitions, 639 flow [2024-10-14 23:58:47,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 127 transitions, 629 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:47,881 INFO L231 Difference]: Finished difference. Result has 88 places, 89 transitions, 363 flow [2024-10-14 23:58:47,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=363, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2024-10-14 23:58:47,883 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 9 predicate places. [2024-10-14 23:58:47,883 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 363 flow [2024-10-14 23:58:47,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:47,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:47,883 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:47,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 23:58:47,884 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:47,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:47,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1002930155, now seen corresponding path program 1 times [2024-10-14 23:58:47,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:47,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312183284] [2024-10-14 23:58:47,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:47,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:47,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:47,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312183284] [2024-10-14 23:58:47,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312183284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:47,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:47,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:47,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502965385] [2024-10-14 23:58:47,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:47,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:47,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:47,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:47,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:47,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-14 23:58:47,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:47,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:47,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-14 23:58:47,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:48,379 INFO L124 PetriNetUnfolderBase]: 1495/3792 cut-off events. [2024-10-14 23:58:48,380 INFO L125 PetriNetUnfolderBase]: For 4048/4242 co-relation queries the response was YES. [2024-10-14 23:58:48,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9030 conditions, 3792 events. 1495/3792 cut-off events. For 4048/4242 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 32453 event pairs, 500 based on Foata normal form. 107/3451 useless extension candidates. Maximal degree in co-relation 3357. Up to 1105 conditions per place. [2024-10-14 23:58:48,416 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 57 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2024-10-14 23:58:48,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 618 flow [2024-10-14 23:58:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2024-10-14 23:58:48,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7113095238095238 [2024-10-14 23:58:48,418 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 363 flow. Second operand 4 states and 239 transitions. [2024-10-14 23:58:48,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 618 flow [2024-10-14 23:58:48,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 110 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:58:48,433 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 379 flow [2024-10-14 23:58:48,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-10-14 23:58:48,434 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-10-14 23:58:48,434 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 379 flow [2024-10-14 23:58:48,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:48,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:48,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:48,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 23:58:48,435 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:48,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:48,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1026094754, now seen corresponding path program 1 times [2024-10-14 23:58:48,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:48,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912331173] [2024-10-14 23:58:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:48,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:48,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:48,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912331173] [2024-10-14 23:58:48,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912331173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:48,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:48,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:48,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408868261] [2024-10-14 23:58:48,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:48,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:48,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:48,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:48,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-14 23:58:48,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:48,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:48,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-14 23:58:48,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:48,932 INFO L124 PetriNetUnfolderBase]: 1578/3866 cut-off events. [2024-10-14 23:58:48,933 INFO L125 PetriNetUnfolderBase]: For 5291/5485 co-relation queries the response was YES. [2024-10-14 23:58:48,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9650 conditions, 3866 events. 1578/3866 cut-off events. For 5291/5485 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 32692 event pairs, 612 based on Foata normal form. 148/3549 useless extension candidates. Maximal degree in co-relation 3427. Up to 1315 conditions per place. [2024-10-14 23:58:48,963 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 59 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-10-14 23:58:48,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 108 transitions, 625 flow [2024-10-14 23:58:48,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 230 transitions. [2024-10-14 23:58:48,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2024-10-14 23:58:48,965 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 379 flow. Second operand 4 states and 230 transitions. [2024-10-14 23:58:48,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 108 transitions, 625 flow [2024-10-14 23:58:48,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 108 transitions, 617 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:48,979 INFO L231 Difference]: Finished difference. Result has 90 places, 88 transitions, 381 flow [2024-10-14 23:58:48,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=381, PETRI_PLACES=90, PETRI_TRANSITIONS=88} [2024-10-14 23:58:48,981 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-10-14 23:58:48,981 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 88 transitions, 381 flow [2024-10-14 23:58:48,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:48,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:48,982 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:48,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 23:58:48,982 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:48,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash -953475303, now seen corresponding path program 1 times [2024-10-14 23:58:48,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:48,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546843508] [2024-10-14 23:58:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:49,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:49,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:49,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546843508] [2024-10-14 23:58:49,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546843508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:49,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:49,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:58:49,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823558519] [2024-10-14 23:58:49,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:49,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:58:49,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:58:49,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:58:49,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-14 23:58:49,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:49,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:49,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-14 23:58:49,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:49,831 INFO L124 PetriNetUnfolderBase]: 2386/4746 cut-off events. [2024-10-14 23:58:49,831 INFO L125 PetriNetUnfolderBase]: For 6379/6583 co-relation queries the response was YES. [2024-10-14 23:58:49,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12761 conditions, 4746 events. 2386/4746 cut-off events. For 6379/6583 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 36465 event pairs, 681 based on Foata normal form. 263/4665 useless extension candidates. Maximal degree in co-relation 5173. Up to 1411 conditions per place. [2024-10-14 23:58:49,873 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 137 selfloop transitions, 13 changer transitions 0/185 dead transitions. [2024-10-14 23:58:49,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 185 transitions, 1157 flow [2024-10-14 23:58:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:58:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:58:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 419 transitions. [2024-10-14 23:58:49,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6235119047619048 [2024-10-14 23:58:49,876 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 381 flow. Second operand 8 states and 419 transitions. [2024-10-14 23:58:49,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 185 transitions, 1157 flow [2024-10-14 23:58:49,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 185 transitions, 1113 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:49,895 INFO L231 Difference]: Finished difference. Result has 97 places, 90 transitions, 424 flow [2024-10-14 23:58:49,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=424, PETRI_PLACES=97, PETRI_TRANSITIONS=90} [2024-10-14 23:58:49,897 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2024-10-14 23:58:49,897 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 90 transitions, 424 flow [2024-10-14 23:58:49,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:49,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:49,897 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:49,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 23:58:49,898 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:49,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1744166569, now seen corresponding path program 1 times [2024-10-14 23:58:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:49,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970678588] [2024-10-14 23:58:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:49,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:49,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970678588] [2024-10-14 23:58:49,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970678588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:49,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:49,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:49,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322576450] [2024-10-14 23:58:49,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:49,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:49,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:49,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:49,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:50,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-14 23:58:50,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 90 transitions, 424 flow. Second operand has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:50,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:50,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-14 23:58:50,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:50,591 INFO L124 PetriNetUnfolderBase]: 2329/4465 cut-off events. [2024-10-14 23:58:50,591 INFO L125 PetriNetUnfolderBase]: For 10286/11003 co-relation queries the response was YES. [2024-10-14 23:58:50,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13466 conditions, 4465 events. 2329/4465 cut-off events. For 10286/11003 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 32847 event pairs, 558 based on Foata normal form. 418/4625 useless extension candidates. Maximal degree in co-relation 11599. Up to 1824 conditions per place. [2024-10-14 23:58:50,628 INFO L140 encePairwiseOnDemand]: 73/84 looper letters, 85 selfloop transitions, 12 changer transitions 0/135 dead transitions. [2024-10-14 23:58:50,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 135 transitions, 924 flow [2024-10-14 23:58:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:58:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:58:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-10-14 23:58:50,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880952380952381 [2024-10-14 23:58:50,630 INFO L175 Difference]: Start difference. First operand has 97 places, 90 transitions, 424 flow. Second operand 5 states and 289 transitions. [2024-10-14 23:58:50,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 135 transitions, 924 flow [2024-10-14 23:58:50,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 135 transitions, 903 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:50,649 INFO L231 Difference]: Finished difference. Result has 99 places, 90 transitions, 461 flow [2024-10-14 23:58:50,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=461, PETRI_PLACES=99, PETRI_TRANSITIONS=90} [2024-10-14 23:58:50,650 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2024-10-14 23:58:50,651 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 90 transitions, 461 flow [2024-10-14 23:58:50,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:50,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:50,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:50,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 23:58:50,652 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:50,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1454354496, now seen corresponding path program 1 times [2024-10-14 23:58:50,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:50,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765657347] [2024-10-14 23:58:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:50,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:50,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:50,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:50,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765657347] [2024-10-14 23:58:50,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765657347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:50,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:50,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:58:50,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210791709] [2024-10-14 23:58:50,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:50,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:50,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:50,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:50,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-14 23:58:50,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 461 flow. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:50,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:50,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-14 23:58:50,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:51,297 INFO L124 PetriNetUnfolderBase]: 1830/4024 cut-off events. [2024-10-14 23:58:51,297 INFO L125 PetriNetUnfolderBase]: For 8273/8393 co-relation queries the response was YES. [2024-10-14 23:58:51,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12141 conditions, 4024 events. 1830/4024 cut-off events. For 8273/8393 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 31586 event pairs, 634 based on Foata normal form. 186/4084 useless extension candidates. Maximal degree in co-relation 11028. Up to 1247 conditions per place. [2024-10-14 23:58:51,330 INFO L140 encePairwiseOnDemand]: 70/84 looper letters, 114 selfloop transitions, 16 changer transitions 0/164 dead transitions. [2024-10-14 23:58:51,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 164 transitions, 1165 flow [2024-10-14 23:58:51,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:58:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:58:51,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 335 transitions. [2024-10-14 23:58:51,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6646825396825397 [2024-10-14 23:58:51,332 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 461 flow. Second operand 6 states and 335 transitions. [2024-10-14 23:58:51,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 164 transitions, 1165 flow [2024-10-14 23:58:51,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 164 transitions, 1121 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:51,356 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 474 flow [2024-10-14 23:58:51,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=474, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2024-10-14 23:58:51,357 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-10-14 23:58:51,357 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 474 flow [2024-10-14 23:58:51,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:51,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:51,358 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:51,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 23:58:51,358 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:51,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1744165544, now seen corresponding path program 1 times [2024-10-14 23:58:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:51,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965377685] [2024-10-14 23:58:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:51,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:51,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965377685] [2024-10-14 23:58:51,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965377685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:51,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:51,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:51,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331648744] [2024-10-14 23:58:51,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:51,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:51,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 84 [2024-10-14 23:58:51,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 474 flow. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:51,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:51,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 84 [2024-10-14 23:58:51,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:51,805 INFO L124 PetriNetUnfolderBase]: 1538/3401 cut-off events. [2024-10-14 23:58:51,806 INFO L125 PetriNetUnfolderBase]: For 10634/10925 co-relation queries the response was YES. [2024-10-14 23:58:51,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10944 conditions, 3401 events. 1538/3401 cut-off events. For 10634/10925 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 26460 event pairs, 498 based on Foata normal form. 300/3512 useless extension candidates. Maximal degree in co-relation 9850. Up to 1042 conditions per place. [2024-10-14 23:58:51,835 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 87 selfloop transitions, 9 changer transitions 0/132 dead transitions. [2024-10-14 23:58:51,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 132 transitions, 1000 flow [2024-10-14 23:58:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:51,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-10-14 23:58:51,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-10-14 23:58:51,837 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 474 flow. Second operand 4 states and 238 transitions. [2024-10-14 23:58:51,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 132 transitions, 1000 flow [2024-10-14 23:58:51,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 132 transitions, 943 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:51,857 INFO L231 Difference]: Finished difference. Result has 101 places, 86 transitions, 459 flow [2024-10-14 23:58:51,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=459, PETRI_PLACES=101, PETRI_TRANSITIONS=86} [2024-10-14 23:58:51,860 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-10-14 23:58:51,860 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 86 transitions, 459 flow [2024-10-14 23:58:51,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:51,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:51,861 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:51,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 23:58:51,862 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:51,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1765411969, now seen corresponding path program 1 times [2024-10-14 23:58:51,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:51,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097436199] [2024-10-14 23:58:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:51,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:51,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097436199] [2024-10-14 23:58:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097436199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:51,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:51,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:58:51,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442092870] [2024-10-14 23:58:51,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:51,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:58:51,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:58:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:58:52,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-14 23:58:52,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 86 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:52,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:52,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-14 23:58:52,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:52,593 INFO L124 PetriNetUnfolderBase]: 2060/3846 cut-off events. [2024-10-14 23:58:52,594 INFO L125 PetriNetUnfolderBase]: For 12628/13050 co-relation queries the response was YES. [2024-10-14 23:58:52,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12924 conditions, 3846 events. 2060/3846 cut-off events. For 12628/13050 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 27124 event pairs, 648 based on Foata normal form. 432/4104 useless extension candidates. Maximal degree in co-relation 11707. Up to 1355 conditions per place. [2024-10-14 23:58:52,625 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 152 selfloop transitions, 13 changer transitions 0/198 dead transitions. [2024-10-14 23:58:52,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 198 transitions, 1560 flow [2024-10-14 23:58:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:58:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:58:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 413 transitions. [2024-10-14 23:58:52,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2024-10-14 23:58:52,630 INFO L175 Difference]: Start difference. First operand has 101 places, 86 transitions, 459 flow. Second operand 8 states and 413 transitions. [2024-10-14 23:58:52,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 198 transitions, 1560 flow [2024-10-14 23:58:52,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 198 transitions, 1553 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 23:58:52,648 INFO L231 Difference]: Finished difference. Result has 110 places, 88 transitions, 509 flow [2024-10-14 23:58:52,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=509, PETRI_PLACES=110, PETRI_TRANSITIONS=88} [2024-10-14 23:58:52,649 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 31 predicate places. [2024-10-14 23:58:52,650 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 509 flow [2024-10-14 23:58:52,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:52,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:52,651 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:52,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 23:58:52,651 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:52,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:52,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1931664096, now seen corresponding path program 1 times [2024-10-14 23:58:52,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:52,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309181946] [2024-10-14 23:58:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:52,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:52,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:52,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309181946] [2024-10-14 23:58:52,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309181946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:52,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:52,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:52,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625318174] [2024-10-14 23:58:52,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:52,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:52,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:52,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:52,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:52,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-14 23:58:52,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 88 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:52,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:52,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-14 23:58:52,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:53,092 INFO L124 PetriNetUnfolderBase]: 1250/2975 cut-off events. [2024-10-14 23:58:53,093 INFO L125 PetriNetUnfolderBase]: For 11214/11526 co-relation queries the response was YES. [2024-10-14 23:58:53,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10553 conditions, 2975 events. 1250/2975 cut-off events. For 11214/11526 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 23397 event pairs, 389 based on Foata normal form. 226/3172 useless extension candidates. Maximal degree in co-relation 9520. Up to 1117 conditions per place. [2024-10-14 23:58:53,114 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 60 selfloop transitions, 7 changer transitions 0/109 dead transitions. [2024-10-14 23:58:53,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 109 transitions, 807 flow [2024-10-14 23:58:53,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:53,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:53,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-10-14 23:58:53,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-10-14 23:58:53,116 INFO L175 Difference]: Start difference. First operand has 110 places, 88 transitions, 509 flow. Second operand 4 states and 238 transitions. [2024-10-14 23:58:53,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 109 transitions, 807 flow [2024-10-14 23:58:53,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 109 transitions, 788 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:53,140 INFO L231 Difference]: Finished difference. Result has 110 places, 88 transitions, 532 flow [2024-10-14 23:58:53,140 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=532, PETRI_PLACES=110, PETRI_TRANSITIONS=88} [2024-10-14 23:58:53,141 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 31 predicate places. [2024-10-14 23:58:53,141 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 532 flow [2024-10-14 23:58:53,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:53,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:53,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:53,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 23:58:53,143 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:53,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:53,144 INFO L85 PathProgramCache]: Analyzing trace with hash -159485955, now seen corresponding path program 1 times [2024-10-14 23:58:53,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:53,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968843593] [2024-10-14 23:58:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:53,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:53,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:53,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968843593] [2024-10-14 23:58:53,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968843593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:53,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:53,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 23:58:53,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80890334] [2024-10-14 23:58:53,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:53,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:53,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:53,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:53,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:53,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-14 23:58:53,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 88 transitions, 532 flow. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:53,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:53,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-14 23:58:53,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:53,752 INFO L124 PetriNetUnfolderBase]: 1923/3611 cut-off events. [2024-10-14 23:58:53,752 INFO L125 PetriNetUnfolderBase]: For 16688/17041 co-relation queries the response was YES. [2024-10-14 23:58:53,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13824 conditions, 3611 events. 1923/3611 cut-off events. For 16688/17041 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 25189 event pairs, 634 based on Foata normal form. 358/3908 useless extension candidates. Maximal degree in co-relation 12637. Up to 1331 conditions per place. [2024-10-14 23:58:53,782 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 135 selfloop transitions, 16 changer transitions 0/182 dead transitions. [2024-10-14 23:58:53,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 182 transitions, 1582 flow [2024-10-14 23:58:53,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 23:58:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 23:58:53,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 330 transitions. [2024-10-14 23:58:53,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-10-14 23:58:53,784 INFO L175 Difference]: Start difference. First operand has 110 places, 88 transitions, 532 flow. Second operand 6 states and 330 transitions. [2024-10-14 23:58:53,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 182 transitions, 1582 flow [2024-10-14 23:58:53,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 182 transitions, 1540 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:53,823 INFO L231 Difference]: Finished difference. Result has 112 places, 90 transitions, 571 flow [2024-10-14 23:58:53,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=571, PETRI_PLACES=112, PETRI_TRANSITIONS=90} [2024-10-14 23:58:53,824 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 33 predicate places. [2024-10-14 23:58:53,824 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 90 transitions, 571 flow [2024-10-14 23:58:53,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:53,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:53,824 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:53,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 23:58:53,825 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:53,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash -247986208, now seen corresponding path program 1 times [2024-10-14 23:58:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014876666] [2024-10-14 23:58:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:53,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:53,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:53,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014876666] [2024-10-14 23:58:53,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014876666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:53,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:53,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:53,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169072210] [2024-10-14 23:58:53,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:53,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:53,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:53,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:53,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:53,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-14 23:58:53,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 90 transitions, 571 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:53,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:53,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-14 23:58:53,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:54,205 INFO L124 PetriNetUnfolderBase]: 1191/2838 cut-off events. [2024-10-14 23:58:54,206 INFO L125 PetriNetUnfolderBase]: For 12859/13070 co-relation queries the response was YES. [2024-10-14 23:58:54,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10833 conditions, 2838 events. 1191/2838 cut-off events. For 12859/13070 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22076 event pairs, 491 based on Foata normal form. 213/3006 useless extension candidates. Maximal degree in co-relation 9817. Up to 1025 conditions per place. [2024-10-14 23:58:54,231 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 63 selfloop transitions, 7 changer transitions 0/112 dead transitions. [2024-10-14 23:58:54,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 886 flow [2024-10-14 23:58:54,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 227 transitions. [2024-10-14 23:58:54,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755952380952381 [2024-10-14 23:58:54,233 INFO L175 Difference]: Start difference. First operand has 112 places, 90 transitions, 571 flow. Second operand 4 states and 227 transitions. [2024-10-14 23:58:54,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 886 flow [2024-10-14 23:58:54,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 112 transitions, 813 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-10-14 23:58:54,261 INFO L231 Difference]: Finished difference. Result has 108 places, 89 transitions, 540 flow [2024-10-14 23:58:54,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=540, PETRI_PLACES=108, PETRI_TRANSITIONS=89} [2024-10-14 23:58:54,262 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 29 predicate places. [2024-10-14 23:58:54,263 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 89 transitions, 540 flow [2024-10-14 23:58:54,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:54,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:54,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:54,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 23:58:54,263 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:54,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash 902361858, now seen corresponding path program 1 times [2024-10-14 23:58:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:54,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167520768] [2024-10-14 23:58:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:54,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:54,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:54,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167520768] [2024-10-14 23:58:54,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167520768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:54,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:54,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:54,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288781612] [2024-10-14 23:58:54,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:54,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:54,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:54,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:54,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:54,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-14 23:58:54,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 89 transitions, 540 flow. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:54,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:54,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-14 23:58:54,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:54,748 INFO L124 PetriNetUnfolderBase]: 1899/3586 cut-off events. [2024-10-14 23:58:54,748 INFO L125 PetriNetUnfolderBase]: For 13043/13369 co-relation queries the response was YES. [2024-10-14 23:58:54,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13305 conditions, 3586 events. 1899/3586 cut-off events. For 13043/13369 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 24895 event pairs, 389 based on Foata normal form. 320/3885 useless extension candidates. Maximal degree in co-relation 12035. Up to 1615 conditions per place. [2024-10-14 23:58:54,770 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 90 selfloop transitions, 12 changer transitions 0/134 dead transitions. [2024-10-14 23:58:54,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 134 transitions, 1026 flow [2024-10-14 23:58:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:58:54,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:58:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2024-10-14 23:58:54,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-10-14 23:58:54,773 INFO L175 Difference]: Start difference. First operand has 108 places, 89 transitions, 540 flow. Second operand 5 states and 288 transitions. [2024-10-14 23:58:54,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 134 transitions, 1026 flow [2024-10-14 23:58:54,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 134 transitions, 982 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-14 23:58:54,807 INFO L231 Difference]: Finished difference. Result has 105 places, 88 transitions, 516 flow [2024-10-14 23:58:54,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=516, PETRI_PLACES=105, PETRI_TRANSITIONS=88} [2024-10-14 23:58:54,809 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 26 predicate places. [2024-10-14 23:58:54,809 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 88 transitions, 516 flow [2024-10-14 23:58:54,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:54,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:54,810 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:54,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 23:58:54,810 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:54,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:54,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1514185725, now seen corresponding path program 1 times [2024-10-14 23:58:54,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:54,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446555389] [2024-10-14 23:58:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:54,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:54,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:54,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446555389] [2024-10-14 23:58:54,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446555389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:54,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:54,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:54,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406991796] [2024-10-14 23:58:54,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:54,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:54,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:54,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:54,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 84 [2024-10-14 23:58:54,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 88 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:54,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:54,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 84 [2024-10-14 23:58:54,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:55,222 INFO L124 PetriNetUnfolderBase]: 1313/2965 cut-off events. [2024-10-14 23:58:55,223 INFO L125 PetriNetUnfolderBase]: For 11460/11691 co-relation queries the response was YES. [2024-10-14 23:58:55,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10665 conditions, 2965 events. 1313/2965 cut-off events. For 11460/11691 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 22685 event pairs, 422 based on Foata normal form. 209/3134 useless extension candidates. Maximal degree in co-relation 9817. Up to 1152 conditions per place. [2024-10-14 23:58:55,250 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 65 selfloop transitions, 7 changer transitions 0/111 dead transitions. [2024-10-14 23:58:55,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 111 transitions, 846 flow [2024-10-14 23:58:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:55,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:55,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-10-14 23:58:55,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2024-10-14 23:58:55,252 INFO L175 Difference]: Start difference. First operand has 105 places, 88 transitions, 516 flow. Second operand 4 states and 237 transitions. [2024-10-14 23:58:55,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 111 transitions, 846 flow [2024-10-14 23:58:55,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 111 transitions, 827 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:55,277 INFO L231 Difference]: Finished difference. Result has 106 places, 88 transitions, 539 flow [2024-10-14 23:58:55,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=539, PETRI_PLACES=106, PETRI_TRANSITIONS=88} [2024-10-14 23:58:55,278 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 27 predicate places. [2024-10-14 23:58:55,278 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 88 transitions, 539 flow [2024-10-14 23:58:55,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:55,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:55,279 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:55,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 23:58:55,279 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:55,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2091552733, now seen corresponding path program 1 times [2024-10-14 23:58:55,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:55,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730179999] [2024-10-14 23:58:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:55,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:55,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:55,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730179999] [2024-10-14 23:58:55,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730179999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:55,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:55,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:58:55,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055351090] [2024-10-14 23:58:55,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:55,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:58:55,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:55,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:58:55,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:58:55,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-14 23:58:55,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 88 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:55,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:55,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-14 23:58:55,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:55,919 INFO L124 PetriNetUnfolderBase]: 1624/3248 cut-off events. [2024-10-14 23:58:55,919 INFO L125 PetriNetUnfolderBase]: For 13864/14123 co-relation queries the response was YES. [2024-10-14 23:58:55,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12366 conditions, 3248 events. 1624/3248 cut-off events. For 13864/14123 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 23213 event pairs, 520 based on Foata normal form. 281/3472 useless extension candidates. Maximal degree in co-relation 11595. Up to 1079 conditions per place. [2024-10-14 23:58:55,937 INFO L140 encePairwiseOnDemand]: 75/84 looper letters, 142 selfloop transitions, 14 changer transitions 18/207 dead transitions. [2024-10-14 23:58:55,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 207 transitions, 1783 flow [2024-10-14 23:58:55,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:58:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:58:55,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 410 transitions. [2024-10-14 23:58:55,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6101190476190477 [2024-10-14 23:58:55,940 INFO L175 Difference]: Start difference. First operand has 106 places, 88 transitions, 539 flow. Second operand 8 states and 410 transitions. [2024-10-14 23:58:55,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 207 transitions, 1783 flow [2024-10-14 23:58:55,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 207 transitions, 1744 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 23:58:55,965 INFO L231 Difference]: Finished difference. Result has 109 places, 84 transitions, 518 flow [2024-10-14 23:58:55,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=518, PETRI_PLACES=109, PETRI_TRANSITIONS=84} [2024-10-14 23:58:55,966 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2024-10-14 23:58:55,966 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 84 transitions, 518 flow [2024-10-14 23:58:55,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:55,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:55,967 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:55,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 23:58:55,967 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:55,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash -304913784, now seen corresponding path program 1 times [2024-10-14 23:58:55,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:55,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304384632] [2024-10-14 23:58:55,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:55,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:56,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:56,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304384632] [2024-10-14 23:58:56,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304384632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:56,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:56,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 23:58:56,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767440103] [2024-10-14 23:58:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:56,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 23:58:56,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:56,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 23:58:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 23:58:56,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 84 [2024-10-14 23:58:56,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 84 transitions, 518 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:56,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:56,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 84 [2024-10-14 23:58:56,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:56,371 INFO L124 PetriNetUnfolderBase]: 1117/2675 cut-off events. [2024-10-14 23:58:56,371 INFO L125 PetriNetUnfolderBase]: For 11297/11480 co-relation queries the response was YES. [2024-10-14 23:58:56,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9738 conditions, 2675 events. 1117/2675 cut-off events. For 11297/11480 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 20852 event pairs, 475 based on Foata normal form. 204/2839 useless extension candidates. Maximal degree in co-relation 8866. Up to 925 conditions per place. [2024-10-14 23:58:56,384 INFO L140 encePairwiseOnDemand]: 81/84 looper letters, 64 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2024-10-14 23:58:56,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 106 transitions, 835 flow [2024-10-14 23:58:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 23:58:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 23:58:56,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-10-14 23:58:56,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-10-14 23:58:56,385 INFO L175 Difference]: Start difference. First operand has 109 places, 84 transitions, 518 flow. Second operand 4 states and 225 transitions. [2024-10-14 23:58:56,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 106 transitions, 835 flow [2024-10-14 23:58:56,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 106 transitions, 758 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-10-14 23:58:56,401 INFO L231 Difference]: Finished difference. Result has 101 places, 83 transitions, 474 flow [2024-10-14 23:58:56,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=474, PETRI_PLACES=101, PETRI_TRANSITIONS=83} [2024-10-14 23:58:56,401 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-10-14 23:58:56,401 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 83 transitions, 474 flow [2024-10-14 23:58:56,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:56,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:56,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:56,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 23:58:56,402 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:56,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:56,402 INFO L85 PathProgramCache]: Analyzing trace with hash -862392961, now seen corresponding path program 1 times [2024-10-14 23:58:56,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:56,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070508124] [2024-10-14 23:58:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:56,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:56,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:56,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070508124] [2024-10-14 23:58:56,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070508124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:56,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:56,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 23:58:56,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483516514] [2024-10-14 23:58:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:56,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 23:58:56,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 23:58:56,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 23:58:56,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 84 [2024-10-14 23:58:56,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 83 transitions, 474 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:56,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:56,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 84 [2024-10-14 23:58:56,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:56,848 INFO L124 PetriNetUnfolderBase]: 1849/3394 cut-off events. [2024-10-14 23:58:56,848 INFO L125 PetriNetUnfolderBase]: For 11160/11439 co-relation queries the response was YES. [2024-10-14 23:58:56,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12109 conditions, 3394 events. 1849/3394 cut-off events. For 11160/11439 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 22969 event pairs, 369 based on Foata normal form. 315/3684 useless extension candidates. Maximal degree in co-relation 10733. Up to 1666 conditions per place. [2024-10-14 23:58:56,933 INFO L140 encePairwiseOnDemand]: 76/84 looper letters, 89 selfloop transitions, 9 changer transitions 2/128 dead transitions. [2024-10-14 23:58:56,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 128 transitions, 974 flow [2024-10-14 23:58:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 23:58:56,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 23:58:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 285 transitions. [2024-10-14 23:58:56,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-10-14 23:58:56,935 INFO L175 Difference]: Start difference. First operand has 101 places, 83 transitions, 474 flow. Second operand 5 states and 285 transitions. [2024-10-14 23:58:56,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 128 transitions, 974 flow [2024-10-14 23:58:56,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 128 transitions, 950 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 23:58:56,952 INFO L231 Difference]: Finished difference. Result has 100 places, 80 transitions, 454 flow [2024-10-14 23:58:56,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=100, PETRI_TRANSITIONS=80} [2024-10-14 23:58:56,953 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 21 predicate places. [2024-10-14 23:58:56,953 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 80 transitions, 454 flow [2024-10-14 23:58:56,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:56,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 23:58:56,954 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:56,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 23:58:56,954 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-10-14 23:58:56,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 23:58:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash -964377237, now seen corresponding path program 1 times [2024-10-14 23:58:56,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 23:58:56,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199943441] [2024-10-14 23:58:56,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 23:58:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 23:58:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 23:58:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 23:58:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 23:58:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199943441] [2024-10-14 23:58:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199943441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 23:58:57,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 23:58:57,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 23:58:57,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221199354] [2024-10-14 23:58:57,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 23:58:57,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 23:58:57,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 23:58:57,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 23:58:57,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 23:58:57,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 84 [2024-10-14 23:58:57,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 80 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:57,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 23:58:57,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 84 [2024-10-14 23:58:57,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 23:58:57,587 INFO L124 PetriNetUnfolderBase]: 1361/2709 cut-off events. [2024-10-14 23:58:57,587 INFO L125 PetriNetUnfolderBase]: For 8457/8660 co-relation queries the response was YES. [2024-10-14 23:58:57,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9806 conditions, 2709 events. 1361/2709 cut-off events. For 8457/8660 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 18833 event pairs, 475 based on Foata normal form. 255/2937 useless extension candidates. Maximal degree in co-relation 9787. Up to 925 conditions per place. [2024-10-14 23:58:57,598 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 0 selfloop transitions, 0 changer transitions 194/194 dead transitions. [2024-10-14 23:58:57,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 194 transitions, 1558 flow [2024-10-14 23:58:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 23:58:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 23:58:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 402 transitions. [2024-10-14 23:58:57,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-10-14 23:58:57,600 INFO L175 Difference]: Start difference. First operand has 100 places, 80 transitions, 454 flow. Second operand 8 states and 402 transitions. [2024-10-14 23:58:57,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 194 transitions, 1558 flow [2024-10-14 23:58:57,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 194 transitions, 1550 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 23:58:57,620 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2024-10-14 23:58:57,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2024-10-14 23:58:57,621 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2024-10-14 23:58:57,621 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2024-10-14 23:58:57,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 23:58:57,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-10-14 23:58:57,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-10-14 23:58:57,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-10-14 23:58:57,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-10-14 23:58:57,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-10-14 23:58:57,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-10-14 23:58:57,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-10-14 23:58:57,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-10-14 23:58:57,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-10-14 23:58:57,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-10-14 23:58:57,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-10-14 23:58:57,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-10-14 23:58:57,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-10-14 23:58:57,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-10-14 23:58:57,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-10-14 23:58:57,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-10-14 23:58:57,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-10-14 23:58:57,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-10-14 23:58:57,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-10-14 23:58:57,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-10-14 23:58:57,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-10-14 23:58:57,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-10-14 23:58:57,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-10-14 23:58:57,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-10-14 23:58:57,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 50 remaining) [2024-10-14 23:58:57,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 50 remaining) [2024-10-14 23:58:57,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-10-14 23:58:57,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-10-14 23:58:57,634 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-10-14 23:58:57,634 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-10-14 23:58:57,634 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-10-14 23:58:57,634 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-10-14 23:58:57,634 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-10-14 23:58:57,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-10-14 23:58:57,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-10-14 23:58:57,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-10-14 23:58:57,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-10-14 23:58:57,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-10-14 23:58:57,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-10-14 23:58:57,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-10-14 23:58:57,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-10-14 23:58:57,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-10-14 23:58:57,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-10-14 23:58:57,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-10-14 23:58:57,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-10-14 23:58:57,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-10-14 23:58:57,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-10-14 23:58:57,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-10-14 23:58:57,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-10-14 23:58:57,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-10-14 23:58:57,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 23:58:57,638 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 23:58:57,646 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 23:58:57,647 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 23:58:57,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:58:57 BasicIcfg [2024-10-14 23:58:57,655 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 23:58:57,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 23:58:57,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 23:58:57,656 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 23:58:57,657 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:44" (3/4) ... [2024-10-14 23:58:57,659 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 23:58:57,661 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-14 23:58:57,662 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-14 23:58:57,667 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2024-10-14 23:58:57,668 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-14 23:58:57,668 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-14 23:58:57,668 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 23:58:57,776 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 23:58:57,776 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 23:58:57,776 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 23:58:57,777 INFO L158 Benchmark]: Toolchain (without parser) took 14647.21ms. Allocated memory was 176.2MB in the beginning and 698.4MB in the end (delta: 522.2MB). Free memory was 118.7MB in the beginning and 450.9MB in the end (delta: -332.3MB). Peak memory consumption was 192.0MB. Max. memory is 16.1GB. [2024-10-14 23:58:57,777 INFO L158 Benchmark]: CDTParser took 1.12ms. Allocated memory is still 176.2MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 23:58:57,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.45ms. Allocated memory is still 176.2MB. Free memory was 118.7MB in the beginning and 106.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 23:58:57,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.77ms. Allocated memory is still 176.2MB. Free memory was 106.6MB in the beginning and 104.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:58:57,778 INFO L158 Benchmark]: Boogie Preprocessor took 57.92ms. Allocated memory is still 176.2MB. Free memory was 104.0MB in the beginning and 101.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:58:57,778 INFO L158 Benchmark]: RCFGBuilder took 903.07ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 101.9MB in the beginning and 188.6MB in the end (delta: -86.7MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-10-14 23:58:57,778 INFO L158 Benchmark]: TraceAbstraction took 13224.36ms. Allocated memory was 245.4MB in the beginning and 698.4MB in the end (delta: 453.0MB). Free memory was 188.6MB in the beginning and 455.1MB in the end (delta: -266.5MB). Peak memory consumption was 187.5MB. Max. memory is 16.1GB. [2024-10-14 23:58:57,778 INFO L158 Benchmark]: Witness Printer took 120.47ms. Allocated memory is still 698.4MB. Free memory was 455.1MB in the beginning and 450.9MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 23:58:57,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12ms. Allocated memory is still 176.2MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.45ms. Allocated memory is still 176.2MB. Free memory was 118.7MB in the beginning and 106.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.77ms. Allocated memory is still 176.2MB. Free memory was 106.6MB in the beginning and 104.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.92ms. Allocated memory is still 176.2MB. Free memory was 104.0MB in the beginning and 101.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 903.07ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 101.9MB in the beginning and 188.6MB in the end (delta: -86.7MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13224.36ms. Allocated memory was 245.4MB in the beginning and 698.4MB in the end (delta: 453.0MB). Free memory was 188.6MB in the beginning and 455.1MB in the end (delta: -266.5MB). Peak memory consumption was 187.5MB. Max. memory is 16.1GB. * Witness Printer took 120.47ms. Allocated memory is still 698.4MB. Free memory was 455.1MB in the beginning and 450.9MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 147 locations, 50 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.1s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2547 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1951 mSDsluCounter, 467 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 288 mSDsCounter, 274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3917 IncrementalHoareTripleChecker+Invalid, 4191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 274 mSolverCounterUnsat, 179 mSDtfsCounter, 3917 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=14, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 23:58:57,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE