./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:52:49,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:52:49,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:52:49,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:52:49,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:52:49,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:52:49,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:52:49,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:52:49,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:52:49,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:52:49,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:52:49,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:52:49,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:52:49,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:52:49,307 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:52:49,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:52:49,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:52:49,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:52:49,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:52:49,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:52:49,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:52:49,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:52:49,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:52:49,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:52:49,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:52:49,323 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:52:49,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:52:49,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:52:49,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:52:49,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:52:49,324 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:52:49,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:52:49,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:52:49,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:52:49,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:52:49,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:52:49,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:52:49,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:52:49,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:52:49,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:52:49,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:52:49,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:52:49,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:52:49,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:52:49,328 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b [2024-11-17 07:52:49,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:52:49,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:52:49,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:52:49,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:52:49,640 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:52:49,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-17 07:52:51,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:52:51,273 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:52:51,276 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-17 07:52:51,287 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a8aac581/d57c9ece54ed4e5a9a5cc154fca4d7a6/FLAG857b2016d [2024-11-17 07:52:51,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a8aac581/d57c9ece54ed4e5a9a5cc154fca4d7a6 [2024-11-17 07:52:51,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:52:51,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:52:51,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:52:51,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:52:51,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:52:51,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f5ea51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51, skipping insertion in model container [2024-11-17 07:52:51,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:52:51,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:52:51,601 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:52:51,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:52:51,639 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:52:51,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51 WrapperNode [2024-11-17 07:52:51,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:52:51,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:52:51,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:52:51,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:52:51,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,683 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 149 [2024-11-17 07:52:51,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:52:51,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:52:51,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:52:51,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:52:51,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,700 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,712 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 07:52:51,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,717 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:52:51,722 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:52:51,722 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:52:51,722 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:52:51,723 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (1/1) ... [2024-11-17 07:52:51,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:52:51,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:52:51,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:52:51,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:52:51,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:52:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:52:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:52:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:52:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:52:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:52:51,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:52:51,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:52:51,797 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:52:51,910 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:52:51,913 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:52:52,153 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:52:52,153 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:52:52,309 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:52:52,310 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:52:52,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:52:52 BoogieIcfgContainer [2024-11-17 07:52:52,311 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:52:52,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:52:52,314 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:52:52,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:52:52,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:52:51" (1/3) ... [2024-11-17 07:52:52,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad23e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:52:52, skipping insertion in model container [2024-11-17 07:52:52,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:51" (2/3) ... [2024-11-17 07:52:52,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad23e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:52:52, skipping insertion in model container [2024-11-17 07:52:52,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:52:52" (3/3) ... [2024-11-17 07:52:52,321 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-11-17 07:52:52,339 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:52:52,339 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-17 07:52:52,339 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:52:52,401 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:52:52,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 64 transitions, 142 flow [2024-11-17 07:52:52,474 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2024-11-17 07:52:52,475 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:52:52,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 62 events. 2/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-17 07:52:52,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 64 transitions, 142 flow [2024-11-17 07:52:52,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 60 transitions, 129 flow [2024-11-17 07:52:52,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:52:52,503 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;@74c1b90e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:52:52,503 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-17 07:52:52,511 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:52:52,511 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-17 07:52:52,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:52:52,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:52,512 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:52,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:52,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:52,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1291218319, now seen corresponding path program 1 times [2024-11-17 07:52:52,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:52,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037113900] [2024-11-17 07:52:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:52,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:52,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:52,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037113900] [2024-11-17 07:52:52,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037113900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:52,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:52,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:52:52,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467712980] [2024-11-17 07:52:52,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:52,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:52:52,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:52,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:52:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:52:52,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 64 [2024-11-17 07:52:52,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:52,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:52,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 64 [2024-11-17 07:52:52,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:53,329 INFO L124 PetriNetUnfolderBase]: 810/1674 cut-off events. [2024-11-17 07:52:53,331 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-17 07:52:53,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3059 conditions, 1674 events. 810/1674 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10304 event pairs, 408 based on Foata normal form. 0/1305 useless extension candidates. Maximal degree in co-relation 2952. Up to 812 conditions per place. [2024-11-17 07:52:53,351 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 60 selfloop transitions, 6 changer transitions 0/82 dead transitions. [2024-11-17 07:52:53,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 82 transitions, 308 flow [2024-11-17 07:52:53,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:52:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:52:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-11-17 07:52:53,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6302083333333334 [2024-11-17 07:52:53,368 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 129 flow. Second operand 3 states and 121 transitions. [2024-11-17 07:52:53,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 82 transitions, 308 flow [2024-11-17 07:52:53,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 82 transitions, 302 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:52:53,380 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 158 flow [2024-11-17 07:52:53,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2024-11-17 07:52:53,386 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 1 predicate places. [2024-11-17 07:52:53,388 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 158 flow [2024-11-17 07:52:53,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:53,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:53,388 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:53,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:52:53,389 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:53,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1291218318, now seen corresponding path program 1 times [2024-11-17 07:52:53,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:53,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919462911] [2024-11-17 07:52:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:53,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:53,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:53,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919462911] [2024-11-17 07:52:53,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919462911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:53,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:53,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:52:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984881468] [2024-11-17 07:52:53,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:53,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:52:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:52:53,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:52:53,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 64 [2024-11-17 07:52:53,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:53,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:53,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 64 [2024-11-17 07:52:53,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:53,795 INFO L124 PetriNetUnfolderBase]: 791/1672 cut-off events. [2024-11-17 07:52:53,795 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-11-17 07:52:53,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 1672 events. 791/1672 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10229 event pairs, 224 based on Foata normal form. 22/1411 useless extension candidates. Maximal degree in co-relation 2851. Up to 882 conditions per place. [2024-11-17 07:52:53,808 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 53 selfloop transitions, 8 changer transitions 0/77 dead transitions. [2024-11-17 07:52:53,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 77 transitions, 310 flow [2024-11-17 07:52:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:52:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:52:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-11-17 07:52:53,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5989583333333334 [2024-11-17 07:52:53,813 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 158 flow. Second operand 3 states and 115 transitions. [2024-11-17 07:52:53,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 77 transitions, 310 flow [2024-11-17 07:52:53,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 77 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:52:53,817 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 170 flow [2024-11-17 07:52:53,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2024-11-17 07:52:53,818 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2024-11-17 07:52:53,819 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 170 flow [2024-11-17 07:52:53,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:53,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:53,820 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:53,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:52:53,821 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:53,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:53,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1373062834, now seen corresponding path program 1 times [2024-11-17 07:52:53,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:53,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622204733] [2024-11-17 07:52:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:53,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:53,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:53,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622204733] [2024-11-17 07:52:53,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622204733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:53,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:53,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:52:53,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129481852] [2024-11-17 07:52:53,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:53,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:53,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:53,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:53,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:53,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2024-11-17 07:52:53,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:53,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:53,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2024-11-17 07:52:53,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:54,256 INFO L124 PetriNetUnfolderBase]: 932/1972 cut-off events. [2024-11-17 07:52:54,257 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2024-11-17 07:52:54,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3953 conditions, 1972 events. 932/1972 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 12295 event pairs, 167 based on Foata normal form. 0/1624 useless extension candidates. Maximal degree in co-relation 3608. Up to 748 conditions per place. [2024-11-17 07:52:54,271 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 78 selfloop transitions, 13 changer transitions 0/104 dead transitions. [2024-11-17 07:52:54,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 104 transitions, 453 flow [2024-11-17 07:52:54,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:52:54,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:52:54,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-11-17 07:52:54,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.51875 [2024-11-17 07:52:54,274 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 170 flow. Second operand 5 states and 166 transitions. [2024-11-17 07:52:54,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 104 transitions, 453 flow [2024-11-17 07:52:54,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 104 transitions, 442 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:52:54,283 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 258 flow [2024-11-17 07:52:54,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=74, PETRI_TRANSITIONS=71} [2024-11-17 07:52:54,284 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 9 predicate places. [2024-11-17 07:52:54,284 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 258 flow [2024-11-17 07:52:54,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:54,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:54,285 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:54,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:52:54,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:54,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:54,287 INFO L85 PathProgramCache]: Analyzing trace with hash 834312515, now seen corresponding path program 1 times [2024-11-17 07:52:54,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:54,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860335018] [2024-11-17 07:52:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:54,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:54,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:54,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:54,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860335018] [2024-11-17 07:52:54,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860335018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:54,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:54,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:52:54,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804971926] [2024-11-17 07:52:54,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:54,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:52:54,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:54,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:52:54,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:52:54,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 64 [2024-11-17 07:52:54,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:54,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:54,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 64 [2024-11-17 07:52:54,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:54,648 INFO L124 PetriNetUnfolderBase]: 1124/2460 cut-off events. [2024-11-17 07:52:54,648 INFO L125 PetriNetUnfolderBase]: For 1313/1351 co-relation queries the response was YES. [2024-11-17 07:52:54,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5388 conditions, 2460 events. 1124/2460 cut-off events. For 1313/1351 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 17292 event pairs, 712 based on Foata normal form. 6/2141 useless extension candidates. Maximal degree in co-relation 4979. Up to 1140 conditions per place. [2024-11-17 07:52:54,665 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 69 selfloop transitions, 8 changer transitions 0/95 dead transitions. [2024-11-17 07:52:54,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 95 transitions, 505 flow [2024-11-17 07:52:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:52:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:52:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-11-17 07:52:54,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-17 07:52:54,669 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 258 flow. Second operand 3 states and 120 transitions. [2024-11-17 07:52:54,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 95 transitions, 505 flow [2024-11-17 07:52:54,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 95 transitions, 503 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-17 07:52:54,678 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 298 flow [2024-11-17 07:52:54,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-17 07:52:54,681 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2024-11-17 07:52:54,681 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 298 flow [2024-11-17 07:52:54,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:54,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:54,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:54,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:52:54,683 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:54,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:54,683 INFO L85 PathProgramCache]: Analyzing trace with hash 834312516, now seen corresponding path program 1 times [2024-11-17 07:52:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024216694] [2024-11-17 07:52:54,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:54,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:54,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:54,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024216694] [2024-11-17 07:52:54,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024216694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:54,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:54,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:52:54,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997428086] [2024-11-17 07:52:54,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:54,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:52:54,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:54,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:52:54,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:52:54,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 64 [2024-11-17 07:52:54,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:54,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:54,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 64 [2024-11-17 07:52:54,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:55,024 INFO L124 PetriNetUnfolderBase]: 1095/2417 cut-off events. [2024-11-17 07:52:55,024 INFO L125 PetriNetUnfolderBase]: For 1684/1722 co-relation queries the response was YES. [2024-11-17 07:52:55,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5604 conditions, 2417 events. 1095/2417 cut-off events. For 1684/1722 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 16873 event pairs, 476 based on Foata normal form. 25/2168 useless extension candidates. Maximal degree in co-relation 5183. Up to 1312 conditions per place. [2024-11-17 07:52:55,039 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 60 selfloop transitions, 12 changer transitions 0/90 dead transitions. [2024-11-17 07:52:55,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 90 transitions, 519 flow [2024-11-17 07:52:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:52:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:52:55,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-17 07:52:55,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.59375 [2024-11-17 07:52:55,041 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 298 flow. Second operand 3 states and 114 transitions. [2024-11-17 07:52:55,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 90 transitions, 519 flow [2024-11-17 07:52:55,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 90 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:52:55,050 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 322 flow [2024-11-17 07:52:55,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-11-17 07:52:55,053 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2024-11-17 07:52:55,053 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 322 flow [2024-11-17 07:52:55,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:55,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:55,053 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:55,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:52:55,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:55,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash 93883600, now seen corresponding path program 1 times [2024-11-17 07:52:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:55,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303879740] [2024-11-17 07:52:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:55,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:55,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:55,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:55,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303879740] [2024-11-17 07:52:55,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303879740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:55,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:55,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:52:55,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813581192] [2024-11-17 07:52:55,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:55,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:55,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:55,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:55,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:55,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2024-11-17 07:52:55,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:55,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:55,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2024-11-17 07:52:55,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:55,455 INFO L124 PetriNetUnfolderBase]: 1009/2291 cut-off events. [2024-11-17 07:52:55,456 INFO L125 PetriNetUnfolderBase]: For 1624/1638 co-relation queries the response was YES. [2024-11-17 07:52:55,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5218 conditions, 2291 events. 1009/2291 cut-off events. For 1624/1638 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 15954 event pairs, 209 based on Foata normal form. 2/2017 useless extension candidates. Maximal degree in co-relation 4891. Up to 900 conditions per place. [2024-11-17 07:52:55,470 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 84 selfloop transitions, 13 changer transitions 0/112 dead transitions. [2024-11-17 07:52:55,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 112 transitions, 655 flow [2024-11-17 07:52:55,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:52:55,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:52:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-11-17 07:52:55,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-17 07:52:55,473 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 322 flow. Second operand 5 states and 160 transitions. [2024-11-17 07:52:55,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 112 transitions, 655 flow [2024-11-17 07:52:55,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 112 transitions, 641 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:52:55,482 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 404 flow [2024-11-17 07:52:55,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-17 07:52:55,484 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 21 predicate places. [2024-11-17 07:52:55,485 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 404 flow [2024-11-17 07:52:55,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:55,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:55,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:55,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:52:55,486 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:55,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash -934004046, now seen corresponding path program 1 times [2024-11-17 07:52:55,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:55,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401994947] [2024-11-17 07:52:55,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:55,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:55,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:55,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401994947] [2024-11-17 07:52:55,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401994947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:55,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:55,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:52:55,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372384504] [2024-11-17 07:52:55,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:55,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:55,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:55,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:55,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:55,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-17 07:52:55,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 404 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:55,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:55,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-17 07:52:55,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:55,915 INFO L124 PetriNetUnfolderBase]: 1270/2632 cut-off events. [2024-11-17 07:52:55,916 INFO L125 PetriNetUnfolderBase]: For 3178/3213 co-relation queries the response was YES. [2024-11-17 07:52:55,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6927 conditions, 2632 events. 1270/2632 cut-off events. For 3178/3213 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 17549 event pairs, 308 based on Foata normal form. 98/2634 useless extension candidates. Maximal degree in co-relation 6588. Up to 861 conditions per place. [2024-11-17 07:52:55,936 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 86 selfloop transitions, 8 changer transitions 16/128 dead transitions. [2024-11-17 07:52:55,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 128 transitions, 860 flow [2024-11-17 07:52:55,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:52:55,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:52:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2024-11-17 07:52:55,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.51875 [2024-11-17 07:52:55,940 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 404 flow. Second operand 5 states and 166 transitions. [2024-11-17 07:52:55,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 128 transitions, 860 flow [2024-11-17 07:52:55,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 128 transitions, 858 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-17 07:52:55,952 INFO L231 Difference]: Finished difference. Result has 94 places, 83 transitions, 450 flow [2024-11-17 07:52:55,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=450, PETRI_PLACES=94, PETRI_TRANSITIONS=83} [2024-11-17 07:52:55,952 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 29 predicate places. [2024-11-17 07:52:55,953 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 83 transitions, 450 flow [2024-11-17 07:52:55,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:55,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:55,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:55,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:52:55,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:55,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:55,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1110646008, now seen corresponding path program 1 times [2024-11-17 07:52:55,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:55,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823591120] [2024-11-17 07:52:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:55,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:56,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823591120] [2024-11-17 07:52:56,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823591120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:56,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:56,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:52:56,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228778293] [2024-11-17 07:52:56,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:56,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:56,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:56,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-17 07:52:56,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 83 transitions, 450 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:56,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:56,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-17 07:52:56,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:56,324 INFO L124 PetriNetUnfolderBase]: 1059/2300 cut-off events. [2024-11-17 07:52:56,324 INFO L125 PetriNetUnfolderBase]: For 3537/3596 co-relation queries the response was YES. [2024-11-17 07:52:56,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6592 conditions, 2300 events. 1059/2300 cut-off events. For 3537/3596 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15363 event pairs, 333 based on Foata normal form. 122/2326 useless extension candidates. Maximal degree in co-relation 6243. Up to 639 conditions per place. [2024-11-17 07:52:56,339 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 95 selfloop transitions, 8 changer transitions 8/129 dead transitions. [2024-11-17 07:52:56,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 907 flow [2024-11-17 07:52:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:52:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:52:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-17 07:52:56,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53125 [2024-11-17 07:52:56,341 INFO L175 Difference]: Start difference. First operand has 94 places, 83 transitions, 450 flow. Second operand 5 states and 170 transitions. [2024-11-17 07:52:56,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 129 transitions, 907 flow [2024-11-17 07:52:56,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 129 transitions, 897 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:52:56,351 INFO L231 Difference]: Finished difference. Result has 96 places, 81 transitions, 448 flow [2024-11-17 07:52:56,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=448, PETRI_PLACES=96, PETRI_TRANSITIONS=81} [2024-11-17 07:52:56,353 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 31 predicate places. [2024-11-17 07:52:56,353 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 81 transitions, 448 flow [2024-11-17 07:52:56,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:56,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:56,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:56,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:52:56,355 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:56,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:56,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1960043060, now seen corresponding path program 1 times [2024-11-17 07:52:56,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:56,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854886304] [2024-11-17 07:52:56,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:56,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:56,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:56,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:56,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854886304] [2024-11-17 07:52:56,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854886304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:56,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:56,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:52:56,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768726002] [2024-11-17 07:52:56,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:56,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:56,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:56,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:56,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:56,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-17 07:52:56,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 448 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:56,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:56,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-17 07:52:56,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:56,731 INFO L124 PetriNetUnfolderBase]: 1023/2261 cut-off events. [2024-11-17 07:52:56,732 INFO L125 PetriNetUnfolderBase]: For 3361/3396 co-relation queries the response was YES. [2024-11-17 07:52:56,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6350 conditions, 2261 events. 1023/2261 cut-off events. For 3361/3396 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15575 event pairs, 306 based on Foata normal form. 99/2328 useless extension candidates. Maximal degree in co-relation 5987. Up to 665 conditions per place. [2024-11-17 07:52:56,746 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 88 selfloop transitions, 8 changer transitions 0/114 dead transitions. [2024-11-17 07:52:56,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 114 transitions, 801 flow [2024-11-17 07:52:56,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:52:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:52:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2024-11-17 07:52:56,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.490625 [2024-11-17 07:52:56,748 INFO L175 Difference]: Start difference. First operand has 96 places, 81 transitions, 448 flow. Second operand 5 states and 157 transitions. [2024-11-17 07:52:56,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 114 transitions, 801 flow [2024-11-17 07:52:56,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 114 transitions, 773 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-17 07:52:56,765 INFO L231 Difference]: Finished difference. Result has 99 places, 84 transitions, 473 flow [2024-11-17 07:52:56,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=473, PETRI_PLACES=99, PETRI_TRANSITIONS=84} [2024-11-17 07:52:56,765 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 34 predicate places. [2024-11-17 07:52:56,766 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 84 transitions, 473 flow [2024-11-17 07:52:56,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:56,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:56,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:56,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:52:56,767 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:56,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:56,767 INFO L85 PathProgramCache]: Analyzing trace with hash 644825894, now seen corresponding path program 1 times [2024-11-17 07:52:56,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:56,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855203464] [2024-11-17 07:52:56,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:56,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:56,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:56,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855203464] [2024-11-17 07:52:56,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855203464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:56,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:56,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:52:56,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565290510] [2024-11-17 07:52:56,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:56,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:52:56,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:56,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:52:56,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:52:56,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2024-11-17 07:52:56,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 84 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:56,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:56,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2024-11-17 07:52:56,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:57,369 INFO L124 PetriNetUnfolderBase]: 1079/2641 cut-off events. [2024-11-17 07:52:57,370 INFO L125 PetriNetUnfolderBase]: For 3322/3338 co-relation queries the response was YES. [2024-11-17 07:52:57,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7430 conditions, 2641 events. 1079/2641 cut-off events. For 3322/3338 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 20137 event pairs, 310 based on Foata normal form. 23/2648 useless extension candidates. Maximal degree in co-relation 7050. Up to 426 conditions per place. [2024-11-17 07:52:57,386 INFO L140 encePairwiseOnDemand]: 50/64 looper letters, 126 selfloop transitions, 29 changer transitions 0/171 dead transitions. [2024-11-17 07:52:57,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 171 transitions, 1215 flow [2024-11-17 07:52:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 07:52:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 07:52:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 256 transitions. [2024-11-17 07:52:57,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-17 07:52:57,388 INFO L175 Difference]: Start difference. First operand has 99 places, 84 transitions, 473 flow. Second operand 9 states and 256 transitions. [2024-11-17 07:52:57,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 171 transitions, 1215 flow [2024-11-17 07:52:57,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 171 transitions, 1208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:52:57,400 INFO L231 Difference]: Finished difference. Result has 111 places, 98 transitions, 689 flow [2024-11-17 07:52:57,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=689, PETRI_PLACES=111, PETRI_TRANSITIONS=98} [2024-11-17 07:52:57,401 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 46 predicate places. [2024-11-17 07:52:57,401 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 98 transitions, 689 flow [2024-11-17 07:52:57,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:57,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:57,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:57,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:52:57,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:57,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 533261573, now seen corresponding path program 1 times [2024-11-17 07:52:57,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:57,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572325872] [2024-11-17 07:52:57,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:57,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:57,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:57,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572325872] [2024-11-17 07:52:57,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572325872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:57,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:57,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:52:57,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555603015] [2024-11-17 07:52:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:57,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:52:57,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:57,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:52:57,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:52:57,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2024-11-17 07:52:57,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 98 transitions, 689 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:57,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:57,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2024-11-17 07:52:57,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:58,044 INFO L124 PetriNetUnfolderBase]: 1077/2601 cut-off events. [2024-11-17 07:52:58,044 INFO L125 PetriNetUnfolderBase]: For 5414/5436 co-relation queries the response was YES. [2024-11-17 07:52:58,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7987 conditions, 2601 events. 1077/2601 cut-off events. For 5414/5436 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 19708 event pairs, 138 based on Foata normal form. 28/2615 useless extension candidates. Maximal degree in co-relation 7590. Up to 565 conditions per place. [2024-11-17 07:52:58,066 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 126 selfloop transitions, 49 changer transitions 0/191 dead transitions. [2024-11-17 07:52:58,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 191 transitions, 1496 flow [2024-11-17 07:52:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 07:52:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 07:52:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 316 transitions. [2024-11-17 07:52:58,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4114583333333333 [2024-11-17 07:52:58,069 INFO L175 Difference]: Start difference. First operand has 111 places, 98 transitions, 689 flow. Second operand 12 states and 316 transitions. [2024-11-17 07:52:58,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 191 transitions, 1496 flow [2024-11-17 07:52:58,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 191 transitions, 1412 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-17 07:52:58,089 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 868 flow [2024-11-17 07:52:58,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=868, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2024-11-17 07:52:58,091 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 53 predicate places. [2024-11-17 07:52:58,091 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 868 flow [2024-11-17 07:52:58,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:58,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:58,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:58,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:52:58,093 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:58,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1693903768, now seen corresponding path program 1 times [2024-11-17 07:52:58,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:58,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210218478] [2024-11-17 07:52:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:58,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:58,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:58,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210218478] [2024-11-17 07:52:58,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210218478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:58,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:58,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:52:58,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36119186] [2024-11-17 07:52:58,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:58,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:52:58,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:58,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:52:58,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:52:58,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2024-11-17 07:52:58,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 868 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:58,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:58,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2024-11-17 07:52:58,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:58,771 INFO L124 PetriNetUnfolderBase]: 1271/3403 cut-off events. [2024-11-17 07:52:58,771 INFO L125 PetriNetUnfolderBase]: For 6739/6761 co-relation queries the response was YES. [2024-11-17 07:52:58,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9919 conditions, 3403 events. 1271/3403 cut-off events. For 6739/6761 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 29301 event pairs, 358 based on Foata normal form. 26/3412 useless extension candidates. Maximal degree in co-relation 9518. Up to 545 conditions per place. [2024-11-17 07:52:58,791 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 140 selfloop transitions, 36 changer transitions 0/195 dead transitions. [2024-11-17 07:52:58,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 195 transitions, 1663 flow [2024-11-17 07:52:58,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 07:52:58,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 07:52:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 253 transitions. [2024-11-17 07:52:58,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4392361111111111 [2024-11-17 07:52:58,793 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 868 flow. Second operand 9 states and 253 transitions. [2024-11-17 07:52:58,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 195 transitions, 1663 flow [2024-11-17 07:52:58,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 195 transitions, 1648 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-17 07:52:58,817 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 1083 flow [2024-11-17 07:52:58,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1083, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2024-11-17 07:52:58,818 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 65 predicate places. [2024-11-17 07:52:58,818 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 1083 flow [2024-11-17 07:52:58,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:58,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:58,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:58,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 07:52:58,819 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:58,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:58,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1693903769, now seen corresponding path program 1 times [2024-11-17 07:52:58,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:58,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821840345] [2024-11-17 07:52:58,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:58,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:58,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821840345] [2024-11-17 07:52:58,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821840345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:58,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:58,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:52:58,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671690901] [2024-11-17 07:52:58,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:58,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:52:58,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:58,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:52:58,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:52:58,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2024-11-17 07:52:58,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 1083 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:58,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:58,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2024-11-17 07:52:58,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:59,442 INFO L124 PetriNetUnfolderBase]: 1261/3269 cut-off events. [2024-11-17 07:52:59,443 INFO L125 PetriNetUnfolderBase]: For 8996/9042 co-relation queries the response was YES. [2024-11-17 07:52:59,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10216 conditions, 3269 events. 1261/3269 cut-off events. For 8996/9042 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 27553 event pairs, 181 based on Foata normal form. 38/3292 useless extension candidates. Maximal degree in co-relation 9798. Up to 717 conditions per place. [2024-11-17 07:52:59,465 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 126 selfloop transitions, 58 changer transitions 0/203 dead transitions. [2024-11-17 07:52:59,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 203 transitions, 1848 flow [2024-11-17 07:52:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 07:52:59,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 07:52:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 308 transitions. [2024-11-17 07:52:59,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4010416666666667 [2024-11-17 07:52:59,467 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 1083 flow. Second operand 12 states and 308 transitions. [2024-11-17 07:52:59,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 203 transitions, 1848 flow [2024-11-17 07:52:59,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 203 transitions, 1744 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-11-17 07:52:59,500 INFO L231 Difference]: Finished difference. Result has 136 places, 128 transitions, 1169 flow [2024-11-17 07:52:59,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1169, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2024-11-17 07:52:59,501 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 71 predicate places. [2024-11-17 07:52:59,502 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 1169 flow [2024-11-17 07:52:59,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:59,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:59,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:59,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:52:59,502 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:52:59,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:59,503 INFO L85 PathProgramCache]: Analyzing trace with hash 631793098, now seen corresponding path program 1 times [2024-11-17 07:52:59,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:59,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711947512] [2024-11-17 07:52:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:59,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:59,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:59,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711947512] [2024-11-17 07:52:59,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711947512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:59,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:59,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:52:59,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567834341] [2024-11-17 07:52:59,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:59,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:59,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:59,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:59,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:59,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-17 07:52:59,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 1169 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:59,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:59,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-17 07:52:59,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:59,968 INFO L124 PetriNetUnfolderBase]: 1383/3514 cut-off events. [2024-11-17 07:52:59,968 INFO L125 PetriNetUnfolderBase]: For 11064/11122 co-relation queries the response was YES. [2024-11-17 07:52:59,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10959 conditions, 3514 events. 1383/3514 cut-off events. For 11064/11122 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 29823 event pairs, 507 based on Foata normal form. 172/3645 useless extension candidates. Maximal degree in co-relation 10559. Up to 959 conditions per place. [2024-11-17 07:52:59,992 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 139 selfloop transitions, 8 changer transitions 2/173 dead transitions. [2024-11-17 07:52:59,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 173 transitions, 1870 flow [2024-11-17 07:52:59,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:52:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:52:59,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-17 07:52:59,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4875 [2024-11-17 07:52:59,994 INFO L175 Difference]: Start difference. First operand has 136 places, 128 transitions, 1169 flow. Second operand 5 states and 156 transitions. [2024-11-17 07:52:59,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 173 transitions, 1870 flow [2024-11-17 07:53:00,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 173 transitions, 1825 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-11-17 07:53:00,027 INFO L231 Difference]: Finished difference. Result has 137 places, 126 transitions, 1141 flow [2024-11-17 07:53:00,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1131, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1141, PETRI_PLACES=137, PETRI_TRANSITIONS=126} [2024-11-17 07:53:00,028 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 72 predicate places. [2024-11-17 07:53:00,028 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 126 transitions, 1141 flow [2024-11-17 07:53:00,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:00,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:00,029 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:00,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 07:53:00,029 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:53:00,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2047800917, now seen corresponding path program 1 times [2024-11-17 07:53:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472935579] [2024-11-17 07:53:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:00,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:00,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:00,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:00,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472935579] [2024-11-17 07:53:00,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472935579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:00,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:00,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:53:00,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741262117] [2024-11-17 07:53:00,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:00,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:53:00,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:00,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:53:00,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:53:00,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-17 07:53:00,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 1141 flow. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:00,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:00,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-17 07:53:00,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:00,599 INFO L124 PetriNetUnfolderBase]: 1149/3099 cut-off events. [2024-11-17 07:53:00,599 INFO L125 PetriNetUnfolderBase]: For 8893/8919 co-relation queries the response was YES. [2024-11-17 07:53:00,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9695 conditions, 3099 events. 1149/3099 cut-off events. For 8893/8919 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 26396 event pairs, 334 based on Foata normal form. 9/3084 useless extension candidates. Maximal degree in co-relation 9387. Up to 720 conditions per place. [2024-11-17 07:53:00,624 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 118 selfloop transitions, 34 changer transitions 0/174 dead transitions. [2024-11-17 07:53:00,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 174 transitions, 1681 flow [2024-11-17 07:53:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:53:00,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:53:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 194 transitions. [2024-11-17 07:53:00,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5052083333333334 [2024-11-17 07:53:00,627 INFO L175 Difference]: Start difference. First operand has 137 places, 126 transitions, 1141 flow. Second operand 6 states and 194 transitions. [2024-11-17 07:53:00,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 174 transitions, 1681 flow [2024-11-17 07:53:00,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 174 transitions, 1641 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-17 07:53:00,666 INFO L231 Difference]: Finished difference. Result has 137 places, 125 transitions, 1206 flow [2024-11-17 07:53:00,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1206, PETRI_PLACES=137, PETRI_TRANSITIONS=125} [2024-11-17 07:53:00,667 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 72 predicate places. [2024-11-17 07:53:00,667 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 125 transitions, 1206 flow [2024-11-17 07:53:00,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:00,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:00,668 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:00,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 07:53:00,668 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:53:00,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:00,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1494511075, now seen corresponding path program 1 times [2024-11-17 07:53:00,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:00,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457905859] [2024-11-17 07:53:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:00,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:00,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:00,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457905859] [2024-11-17 07:53:00,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457905859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:00,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:00,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:53:00,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940025810] [2024-11-17 07:53:00,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:00,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:53:00,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:53:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:53:00,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-17 07:53:00,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 125 transitions, 1206 flow. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:00,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:00,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-17 07:53:00,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:01,186 INFO L124 PetriNetUnfolderBase]: 1125/3082 cut-off events. [2024-11-17 07:53:01,186 INFO L125 PetriNetUnfolderBase]: For 9797/9834 co-relation queries the response was YES. [2024-11-17 07:53:01,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9516 conditions, 3082 events. 1125/3082 cut-off events. For 9797/9834 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 26260 event pairs, 332 based on Foata normal form. 12/3077 useless extension candidates. Maximal degree in co-relation 9230. Up to 736 conditions per place. [2024-11-17 07:53:01,199 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 120 selfloop transitions, 32 changer transitions 0/174 dead transitions. [2024-11-17 07:53:01,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 174 transitions, 1756 flow [2024-11-17 07:53:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:53:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:53:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 193 transitions. [2024-11-17 07:53:01,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5026041666666666 [2024-11-17 07:53:01,202 INFO L175 Difference]: Start difference. First operand has 137 places, 125 transitions, 1206 flow. Second operand 6 states and 193 transitions. [2024-11-17 07:53:01,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 174 transitions, 1756 flow [2024-11-17 07:53:01,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 174 transitions, 1732 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-17 07:53:01,225 INFO L231 Difference]: Finished difference. Result has 140 places, 124 transitions, 1266 flow [2024-11-17 07:53:01,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1159, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1266, PETRI_PLACES=140, PETRI_TRANSITIONS=124} [2024-11-17 07:53:01,226 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 75 predicate places. [2024-11-17 07:53:01,227 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 124 transitions, 1266 flow [2024-11-17 07:53:01,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:01,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:01,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:01,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-17 07:53:01,227 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:53:01,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1272987996, now seen corresponding path program 1 times [2024-11-17 07:53:01,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:01,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042690498] [2024-11-17 07:53:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:01,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042690498] [2024-11-17 07:53:01,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042690498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:01,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:01,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:53:01,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702181479] [2024-11-17 07:53:01,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:01,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:53:01,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:01,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:53:01,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:53:01,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 64 [2024-11-17 07:53:01,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 124 transitions, 1266 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:01,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:01,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 64 [2024-11-17 07:53:01,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:01,801 INFO L124 PetriNetUnfolderBase]: 1361/3303 cut-off events. [2024-11-17 07:53:01,801 INFO L125 PetriNetUnfolderBase]: For 13836/13893 co-relation queries the response was YES. [2024-11-17 07:53:01,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10739 conditions, 3303 events. 1361/3303 cut-off events. For 13836/13893 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 26591 event pairs, 400 based on Foata normal form. 114/3392 useless extension candidates. Maximal degree in co-relation 10316. Up to 769 conditions per place. [2024-11-17 07:53:01,825 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 153 selfloop transitions, 9 changer transitions 1/185 dead transitions. [2024-11-17 07:53:01,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 185 transitions, 2233 flow [2024-11-17 07:53:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:53:01,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:53:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 177 transitions. [2024-11-17 07:53:01,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3950892857142857 [2024-11-17 07:53:01,827 INFO L175 Difference]: Start difference. First operand has 140 places, 124 transitions, 1266 flow. Second operand 7 states and 177 transitions. [2024-11-17 07:53:01,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 185 transitions, 2233 flow [2024-11-17 07:53:01,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 185 transitions, 2219 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:53:01,858 INFO L231 Difference]: Finished difference. Result has 143 places, 123 transitions, 1270 flow [2024-11-17 07:53:01,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1270, PETRI_PLACES=143, PETRI_TRANSITIONS=123} [2024-11-17 07:53:01,859 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 78 predicate places. [2024-11-17 07:53:01,859 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 123 transitions, 1270 flow [2024-11-17 07:53:01,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:01,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:01,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:01,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 07:53:01,860 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:53:01,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1627769338, now seen corresponding path program 1 times [2024-11-17 07:53:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42371128] [2024-11-17 07:53:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:01,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:01,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42371128] [2024-11-17 07:53:01,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42371128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:01,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:01,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:53:01,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128925432] [2024-11-17 07:53:01,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:01,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:53:01,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:01,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:53:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:53:01,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 64 [2024-11-17 07:53:01,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 123 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:01,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:01,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 64 [2024-11-17 07:53:01,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:02,373 INFO L124 PetriNetUnfolderBase]: 1272/3116 cut-off events. [2024-11-17 07:53:02,373 INFO L125 PetriNetUnfolderBase]: For 13821/13866 co-relation queries the response was YES. [2024-11-17 07:53:02,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10556 conditions, 3116 events. 1272/3116 cut-off events. For 13821/13866 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 24860 event pairs, 372 based on Foata normal form. 88/3167 useless extension candidates. Maximal degree in co-relation 10128. Up to 694 conditions per place. [2024-11-17 07:53:02,388 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 150 selfloop transitions, 9 changer transitions 1/182 dead transitions. [2024-11-17 07:53:02,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 182 transitions, 2220 flow [2024-11-17 07:53:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:53:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:53:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 174 transitions. [2024-11-17 07:53:02,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38839285714285715 [2024-11-17 07:53:02,389 INFO L175 Difference]: Start difference. First operand has 143 places, 123 transitions, 1270 flow. Second operand 7 states and 174 transitions. [2024-11-17 07:53:02,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 182 transitions, 2220 flow [2024-11-17 07:53:02,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 182 transitions, 2194 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-17 07:53:02,418 INFO L231 Difference]: Finished difference. Result has 142 places, 122 transitions, 1261 flow [2024-11-17 07:53:02,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1243, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1261, PETRI_PLACES=142, PETRI_TRANSITIONS=122} [2024-11-17 07:53:02,419 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 77 predicate places. [2024-11-17 07:53:02,419 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 122 transitions, 1261 flow [2024-11-17 07:53:02,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:02,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:02,419 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:02,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 07:53:02,420 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:53:02,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash 945301560, now seen corresponding path program 1 times [2024-11-17 07:53:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:02,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599085248] [2024-11-17 07:53:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:02,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:02,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:02,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599085248] [2024-11-17 07:53:02,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599085248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:02,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:02,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:53:02,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436716224] [2024-11-17 07:53:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:02,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:53:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:53:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:53:02,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 64 [2024-11-17 07:53:02,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 122 transitions, 1261 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:02,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:02,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 64 [2024-11-17 07:53:02,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:02,933 INFO L124 PetriNetUnfolderBase]: 1169/2967 cut-off events. [2024-11-17 07:53:02,933 INFO L125 PetriNetUnfolderBase]: For 13107/13166 co-relation queries the response was YES. [2024-11-17 07:53:02,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9815 conditions, 2967 events. 1169/2967 cut-off events. For 13107/13166 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 24105 event pairs, 321 based on Foata normal form. 116/3064 useless extension candidates. Maximal degree in co-relation 9394. Up to 767 conditions per place. [2024-11-17 07:53:02,949 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 84 selfloop transitions, 7 changer transitions 72/182 dead transitions. [2024-11-17 07:53:02,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 182 transitions, 2132 flow [2024-11-17 07:53:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:53:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:53:02,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 223 transitions. [2024-11-17 07:53:02,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3484375 [2024-11-17 07:53:02,953 INFO L175 Difference]: Start difference. First operand has 142 places, 122 transitions, 1261 flow. Second operand 10 states and 223 transitions. [2024-11-17 07:53:02,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 182 transitions, 2132 flow [2024-11-17 07:53:02,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 182 transitions, 2107 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-17 07:53:02,977 INFO L231 Difference]: Finished difference. Result has 144 places, 90 transitions, 850 flow [2024-11-17 07:53:02,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1234, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=850, PETRI_PLACES=144, PETRI_TRANSITIONS=90} [2024-11-17 07:53:02,979 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 79 predicate places. [2024-11-17 07:53:02,979 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 90 transitions, 850 flow [2024-11-17 07:53:02,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:02,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:02,979 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:02,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-17 07:53:02,980 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:53:02,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:02,981 INFO L85 PathProgramCache]: Analyzing trace with hash 819431496, now seen corresponding path program 1 times [2024-11-17 07:53:02,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:02,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939947988] [2024-11-17 07:53:02,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:02,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:03,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939947988] [2024-11-17 07:53:03,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939947988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:03,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:03,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:53:03,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467001488] [2024-11-17 07:53:03,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:03,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:53:03,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:53:03,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:53:03,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 64 [2024-11-17 07:53:03,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 90 transitions, 850 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:03,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:03,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 64 [2024-11-17 07:53:03,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:03,307 INFO L124 PetriNetUnfolderBase]: 606/1558 cut-off events. [2024-11-17 07:53:03,307 INFO L125 PetriNetUnfolderBase]: For 7190/7212 co-relation queries the response was YES. [2024-11-17 07:53:03,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5328 conditions, 1558 events. 606/1558 cut-off events. For 7190/7212 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 10695 event pairs, 215 based on Foata normal form. 78/1620 useless extension candidates. Maximal degree in co-relation 4977. Up to 431 conditions per place. [2024-11-17 07:53:03,314 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2024-11-17 07:53:03,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 122 transitions, 1401 flow [2024-11-17 07:53:03,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 07:53:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 07:53:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 180 transitions. [2024-11-17 07:53:03,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3125 [2024-11-17 07:53:03,316 INFO L175 Difference]: Start difference. First operand has 144 places, 90 transitions, 850 flow. Second operand 9 states and 180 transitions. [2024-11-17 07:53:03,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 122 transitions, 1401 flow [2024-11-17 07:53:03,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 122 transitions, 1289 flow, removed 1 selfloop flow, removed 21 redundant places. [2024-11-17 07:53:03,331 INFO L231 Difference]: Finished difference. Result has 115 places, 0 transitions, 0 flow [2024-11-17 07:53:03,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=115, PETRI_TRANSITIONS=0} [2024-11-17 07:53:03,332 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 50 predicate places. [2024-11-17 07:53:03,332 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 0 transitions, 0 flow [2024-11-17 07:53:03,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:03,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-17 07:53:03,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-11-17 07:53:03,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-17 07:53:03,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-17 07:53:03,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-17 07:53:03,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-17 07:53:03,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-17 07:53:03,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-17 07:53:03,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-17 07:53:03,338 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-17 07:53:03,338 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-17 07:53:03,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-17 07:53:03,338 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:03,344 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:53:03,344 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:53:03,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:53:03 BasicIcfg [2024-11-17 07:53:03,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:53:03,349 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:53:03,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:53:03,349 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:53:03,350 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:52:52" (3/4) ... [2024-11-17 07:53:03,351 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:53:03,354 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:53:03,354 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:53:03,357 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-17 07:53:03,357 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-17 07:53:03,357 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 07:53:03,357 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 07:53:03,436 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:53:03,436 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:53:03,436 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:53:03,437 INFO L158 Benchmark]: Toolchain (without parser) took 12096.79ms. Allocated memory was 155.2MB in the beginning and 429.9MB in the end (delta: 274.7MB). Free memory was 125.4MB in the beginning and 198.8MB in the end (delta: -73.5MB). Peak memory consumption was 199.8MB. Max. memory is 16.1GB. [2024-11-17 07:53:03,437 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 155.2MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:53:03,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.21ms. Allocated memory is still 155.2MB. Free memory was 125.2MB in the beginning and 116.6MB in the end (delta: 8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 07:53:03,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.69ms. Allocated memory is still 155.2MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:53:03,438 INFO L158 Benchmark]: Boogie Preprocessor took 37.32ms. Allocated memory is still 155.2MB. Free memory was 114.5MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:53:03,438 INFO L158 Benchmark]: IcfgBuilder took 589.19ms. Allocated memory is still 155.2MB. Free memory was 112.3MB in the beginning and 98.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 07:53:03,438 INFO L158 Benchmark]: TraceAbstraction took 11035.30ms. Allocated memory was 155.2MB in the beginning and 429.9MB in the end (delta: 274.7MB). Free memory was 98.1MB in the beginning and 202.0MB in the end (delta: -103.9MB). Peak memory consumption was 173.6MB. Max. memory is 16.1GB. [2024-11-17 07:53:03,439 INFO L158 Benchmark]: Witness Printer took 87.31ms. Allocated memory is still 429.9MB. Free memory was 202.0MB in the beginning and 198.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:53:03,440 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 155.2MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.21ms. Allocated memory is still 155.2MB. Free memory was 125.2MB in the beginning and 116.6MB in the end (delta: 8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.69ms. Allocated memory is still 155.2MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.32ms. Allocated memory is still 155.2MB. Free memory was 114.5MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 589.19ms. Allocated memory is still 155.2MB. Free memory was 112.3MB in the beginning and 98.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11035.30ms. Allocated memory was 155.2MB in the beginning and 429.9MB in the end (delta: 274.7MB). Free memory was 98.1MB in the beginning and 202.0MB in the end (delta: -103.9MB). Peak memory consumption was 173.6MB. Max. memory is 16.1GB. * Witness Printer took 87.31ms. Allocated memory is still 429.9MB. Free memory was 202.0MB in the beginning and 198.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 105 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.9s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1650 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1497 mSDsluCounter, 214 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3419 IncrementalHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 160 mSolverCounterUnsat, 53 mSDtfsCounter, 3419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1270occurred in iteration=17, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 1168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:53:03,472 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