./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/chl-simpl-str-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86978482104e316c202a01b019909b1a7fe566ade6200bbc4193c078d7c086e9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:25:48,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:25:48,303 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:25:48,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:25:48,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:25:48,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:25:48,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:25:48,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:25:48,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:25:48,333 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:25:48,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:25:48,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:25:48,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:25:48,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:25:48,334 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:25:48,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:25:48,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:25:48,334 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:25:48,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:25:48,335 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:25:48,335 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:25:48,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:25:48,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:25:48,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:25:48,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:25:48,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:25:48,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:25:48,336 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:25:48,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:25:48,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:25:48,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:25:48,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:25:48,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:25:48,337 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:25:48,337 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:25:48,337 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 86978482104e316c202a01b019909b1a7fe566ade6200bbc4193c078d7c086e9 [2025-03-04 15:25:48,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:25:48,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:25:48,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:25:48,568 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:25:48,568 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:25:48,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2025-03-04 15:25:49,663 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5a604d0/37f489d6ac594333a12b9ec779ef402a/FLAG554954d72 [2025-03-04 15:25:49,927 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:25:49,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2025-03-04 15:25:49,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5a604d0/37f489d6ac594333a12b9ec779ef402a/FLAG554954d72 [2025-03-04 15:25:49,962 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5a604d0/37f489d6ac594333a12b9ec779ef402a [2025-03-04 15:25:49,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:25:49,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:25:49,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:25:49,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:25:49,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:25:49,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:25:49" (1/1) ... [2025-03-04 15:25:49,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a52bd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:49, skipping insertion in model container [2025-03-04 15:25:49,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:25:49" (1/1) ... [2025-03-04 15:25:49,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:25:50,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:25:50,136 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:25:50,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:25:50,166 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:25:50,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50 WrapperNode [2025-03-04 15:25:50,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:25:50,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:25:50,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:25:50,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:25:50,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,200 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 145 [2025-03-04 15:25:50,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:25:50,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:25:50,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:25:50,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:25:50,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,228 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]. [2025-03-04 15:25:50,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:25:50,235 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:25:50,235 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:25:50,235 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:25:50,236 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (1/1) ... [2025-03-04 15:25:50,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:25:50,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:25:50,265 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) [2025-03-04 15:25:50,267 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 [2025-03-04 15:25:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:25:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 15:25:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 15:25:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 15:25:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 15:25:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:25:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:25:50,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:25:50,290 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:25:50,364 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:25:50,366 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:25:50,591 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:25:50,592 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:25:50,730 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:25:50,730 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:25:50,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:25:50 BoogieIcfgContainer [2025-03-04 15:25:50,731 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:25:50,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:25:50,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:25:50,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:25:50,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:25:49" (1/3) ... [2025-03-04 15:25:50,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac5446e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:25:50, skipping insertion in model container [2025-03-04 15:25:50,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:50" (2/3) ... [2025-03-04 15:25:50,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac5446e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:25:50, skipping insertion in model container [2025-03-04 15:25:50,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:25:50" (3/3) ... [2025-03-04 15:25:50,739 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2025-03-04 15:25:50,749 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:25:50,751 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-symm.wvr.c that has 3 procedures, 53 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-03-04 15:25:50,752 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:25:50,809 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 15:25:50,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 60 transitions, 134 flow [2025-03-04 15:25:50,865 INFO L124 PetriNetUnfolderBase]: 8/58 cut-off events. [2025-03-04 15:25:50,867 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 15:25:50,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 58 events. 8/58 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 187 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2025-03-04 15:25:50,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 60 transitions, 134 flow [2025-03-04 15:25:50,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 56 transitions, 121 flow [2025-03-04 15:25:50,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:25:50,892 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;@3f19e96e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:25:50,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-04 15:25:50,899 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:25:50,900 INFO L124 PetriNetUnfolderBase]: 2/20 cut-off events. [2025-03-04 15:25:50,900 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:25:50,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:50,902 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:50,902 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:50,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash 768172374, now seen corresponding path program 1 times [2025-03-04 15:25:50,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:50,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255246376] [2025-03-04 15:25:50,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:50,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:50,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:25:50,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:25:50,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:50,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:51,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:51,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255246376] [2025-03-04 15:25:51,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255246376] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:51,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:51,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:25:51,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717087053] [2025-03-04 15:25:51,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:51,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:51,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:51,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:51,173 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 60 [2025-03-04 15:25:51,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 56 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 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) [2025-03-04 15:25:51,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:51,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 60 [2025-03-04 15:25:51,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:51,479 INFO L124 PetriNetUnfolderBase]: 573/1141 cut-off events. [2025-03-04 15:25:51,479 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2025-03-04 15:25:51,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 1141 events. 573/1141 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 7303 event pairs, 178 based on Foata normal form. 40/937 useless extension candidates. Maximal degree in co-relation 2009. Up to 441 conditions per place. [2025-03-04 15:25:51,493 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 52 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2025-03-04 15:25:51,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 83 transitions, 295 flow [2025-03-04 15:25:51,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:51,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions. [2025-03-04 15:25:51,502 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2025-03-04 15:25:51,504 INFO L175 Difference]: Start difference. First operand has 55 places, 56 transitions, 121 flow. Second operand 4 states and 172 transitions. [2025-03-04 15:25:51,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 83 transitions, 295 flow [2025-03-04 15:25:51,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 83 transitions, 288 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:25:51,513 INFO L231 Difference]: Finished difference. Result has 57 places, 58 transitions, 150 flow [2025-03-04 15:25:51,517 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=57, PETRI_TRANSITIONS=58} [2025-03-04 15:25:51,520 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2025-03-04 15:25:51,521 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 58 transitions, 150 flow [2025-03-04 15:25:51,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 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) [2025-03-04 15:25:51,522 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:51,522 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:51,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:25:51,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:51,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:51,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1956459788, now seen corresponding path program 1 times [2025-03-04 15:25:51,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:51,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404796515] [2025-03-04 15:25:51,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:51,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:51,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:25:51,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:25:51,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:51,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:51,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:51,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404796515] [2025-03-04 15:25:51,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404796515] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:51,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:51,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:25:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354326104] [2025-03-04 15:25:51,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:51,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:51,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:51,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:51,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:51,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 60 [2025-03-04 15:25:51,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 58 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:51,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:51,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 60 [2025-03-04 15:25:51,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:51,757 INFO L124 PetriNetUnfolderBase]: 427/988 cut-off events. [2025-03-04 15:25:51,757 INFO L125 PetriNetUnfolderBase]: For 255/257 co-relation queries the response was YES. [2025-03-04 15:25:51,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1933 conditions, 988 events. 427/988 cut-off events. For 255/257 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6608 event pairs, 97 based on Foata normal form. 2/849 useless extension candidates. Maximal degree in co-relation 1466. Up to 395 conditions per place. [2025-03-04 15:25:51,766 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 35 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2025-03-04 15:25:51,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 252 flow [2025-03-04 15:25:51,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2025-03-04 15:25:51,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2025-03-04 15:25:51,770 INFO L175 Difference]: Start difference. First operand has 57 places, 58 transitions, 150 flow. Second operand 4 states and 162 transitions. [2025-03-04 15:25:51,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 252 flow [2025-03-04 15:25:51,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 69 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:25:51,773 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 156 flow [2025-03-04 15:25:51,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2025-03-04 15:25:51,774 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 4 predicate places. [2025-03-04 15:25:51,774 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 156 flow [2025-03-04 15:25:51,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:51,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:51,775 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:51,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:25:51,775 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:51,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 645593522, now seen corresponding path program 1 times [2025-03-04 15:25:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:51,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362568713] [2025-03-04 15:25:51,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:51,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:25:51,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:25:51,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:51,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:51,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:51,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362568713] [2025-03-04 15:25:51,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362568713] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:51,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:51,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:25:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377564990] [2025-03-04 15:25:51,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:51,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:51,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:51,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:51,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:51,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 60 [2025-03-04 15:25:51,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2025-03-04 15:25:51,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:51,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 60 [2025-03-04 15:25:51,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:52,032 INFO L124 PetriNetUnfolderBase]: 424/958 cut-off events. [2025-03-04 15:25:52,032 INFO L125 PetriNetUnfolderBase]: For 406/441 co-relation queries the response was YES. [2025-03-04 15:25:52,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1886 conditions, 958 events. 424/958 cut-off events. For 406/441 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6379 event pairs, 125 based on Foata normal form. 64/840 useless extension candidates. Maximal degree in co-relation 1069. Up to 351 conditions per place. [2025-03-04 15:25:52,038 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 38 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2025-03-04 15:25:52,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 68 transitions, 285 flow [2025-03-04 15:25:52,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:52,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2025-03-04 15:25:52,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6625 [2025-03-04 15:25:52,039 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 156 flow. Second operand 4 states and 159 transitions. [2025-03-04 15:25:52,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 68 transitions, 285 flow [2025-03-04 15:25:52,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 68 transitions, 271 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:25:52,042 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 150 flow [2025-03-04 15:25:52,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2025-03-04 15:25:52,042 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2025-03-04 15:25:52,042 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 150 flow [2025-03-04 15:25:52,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2025-03-04 15:25:52,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:52,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:52,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:25:52,043 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:52,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:52,044 INFO L85 PathProgramCache]: Analyzing trace with hash -520741638, now seen corresponding path program 1 times [2025-03-04 15:25:52,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:52,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047236618] [2025-03-04 15:25:52,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:52,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:52,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:25:52,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:25:52,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:52,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:52,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:52,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047236618] [2025-03-04 15:25:52,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047236618] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:52,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:52,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:25:52,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967954815] [2025-03-04 15:25:52,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:52,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:52,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:52,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:52,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 60 [2025-03-04 15:25:52,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2025-03-04 15:25:52,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:52,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 60 [2025-03-04 15:25:52,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:52,216 INFO L124 PetriNetUnfolderBase]: 429/966 cut-off events. [2025-03-04 15:25:52,217 INFO L125 PetriNetUnfolderBase]: For 363/365 co-relation queries the response was YES. [2025-03-04 15:25:52,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1965 conditions, 966 events. 429/966 cut-off events. For 363/365 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6296 event pairs, 97 based on Foata normal form. 22/872 useless extension candidates. Maximal degree in co-relation 1488. Up to 415 conditions per place. [2025-03-04 15:25:52,223 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 36 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2025-03-04 15:25:52,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 256 flow [2025-03-04 15:25:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2025-03-04 15:25:52,225 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2025-03-04 15:25:52,225 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 150 flow. Second operand 4 states and 158 transitions. [2025-03-04 15:25:52,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 256 flow [2025-03-04 15:25:52,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 66 transitions, 246 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:25:52,228 INFO L231 Difference]: Finished difference. Result has 56 places, 54 transitions, 148 flow [2025-03-04 15:25:52,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2025-03-04 15:25:52,229 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 1 predicate places. [2025-03-04 15:25:52,229 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 148 flow [2025-03-04 15:25:52,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2025-03-04 15:25:52,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:52,230 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:52,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:25:52,230 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:52,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:52,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1461436879, now seen corresponding path program 1 times [2025-03-04 15:25:52,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:52,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373208175] [2025-03-04 15:25:52,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:52,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:52,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:25:52,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:25:52,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:52,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:52,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:52,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373208175] [2025-03-04 15:25:52,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373208175] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:52,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:52,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:25:52,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365378085] [2025-03-04 15:25:52,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:52,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:52,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:52,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:52,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 60 [2025-03-04 15:25:52,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:52,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:52,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 60 [2025-03-04 15:25:52,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:52,410 INFO L124 PetriNetUnfolderBase]: 348/858 cut-off events. [2025-03-04 15:25:52,410 INFO L125 PetriNetUnfolderBase]: For 324/338 co-relation queries the response was YES. [2025-03-04 15:25:52,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 858 events. 348/858 cut-off events. For 324/338 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5809 event pairs, 125 based on Foata normal form. 14/736 useless extension candidates. Maximal degree in co-relation 925. Up to 292 conditions per place. [2025-03-04 15:25:52,414 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 36 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2025-03-04 15:25:52,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 66 transitions, 275 flow [2025-03-04 15:25:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2025-03-04 15:25:52,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-04 15:25:52,415 INFO L175 Difference]: Start difference. First operand has 56 places, 54 transitions, 148 flow. Second operand 4 states and 160 transitions. [2025-03-04 15:25:52,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 66 transitions, 275 flow [2025-03-04 15:25:52,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 261 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:25:52,417 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 144 flow [2025-03-04 15:25:52,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2025-03-04 15:25:52,417 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2025-03-04 15:25:52,417 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 144 flow [2025-03-04 15:25:52,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:52,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:52,417 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:52,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:25:52,417 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:52,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1036877814, now seen corresponding path program 1 times [2025-03-04 15:25:52,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:52,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623085486] [2025-03-04 15:25:52,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:52,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:52,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:25:52,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:25:52,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:52,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:52,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:52,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:52,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623085486] [2025-03-04 15:25:52,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623085486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:52,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:52,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:25:52,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312778548] [2025-03-04 15:25:52,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:52,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:25:52,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:52,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:25:52,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:25:52,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 60 [2025-03-04 15:25:52,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2025-03-04 15:25:52,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:52,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 60 [2025-03-04 15:25:52,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:52,631 INFO L124 PetriNetUnfolderBase]: 590/1112 cut-off events. [2025-03-04 15:25:52,631 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2025-03-04 15:25:52,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 1112 events. 590/1112 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 6659 event pairs, 89 based on Foata normal form. 0/1028 useless extension candidates. Maximal degree in co-relation 1875. Up to 497 conditions per place. [2025-03-04 15:25:52,638 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 48 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2025-03-04 15:25:52,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 76 transitions, 310 flow [2025-03-04 15:25:52,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:25:52,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:25:52,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 199 transitions. [2025-03-04 15:25:52,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6633333333333333 [2025-03-04 15:25:52,640 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 144 flow. Second operand 5 states and 199 transitions. [2025-03-04 15:25:52,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 76 transitions, 310 flow [2025-03-04 15:25:52,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 296 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:25:52,644 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 148 flow [2025-03-04 15:25:52,644 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2025-03-04 15:25:52,645 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2025-03-04 15:25:52,646 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 148 flow [2025-03-04 15:25:52,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2025-03-04 15:25:52,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:52,646 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:52,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:25:52,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:52,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1036878807, now seen corresponding path program 1 times [2025-03-04 15:25:52,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:52,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762429086] [2025-03-04 15:25:52,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:52,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:52,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:25:52,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:25:52,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:52,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:52,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:52,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762429086] [2025-03-04 15:25:52,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762429086] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:52,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:52,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:25:52,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265742487] [2025-03-04 15:25:52,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:52,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:52,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:52,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:52,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:52,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 60 [2025-03-04 15:25:52,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2025-03-04 15:25:52,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:52,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 60 [2025-03-04 15:25:52,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:52,822 INFO L124 PetriNetUnfolderBase]: 468/992 cut-off events. [2025-03-04 15:25:52,822 INFO L125 PetriNetUnfolderBase]: For 469/469 co-relation queries the response was YES. [2025-03-04 15:25:52,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2081 conditions, 992 events. 468/992 cut-off events. For 469/469 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6309 event pairs, 189 based on Foata normal form. 20/891 useless extension candidates. Maximal degree in co-relation 1086. Up to 443 conditions per place. [2025-03-04 15:25:52,827 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 50 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2025-03-04 15:25:52,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 76 transitions, 304 flow [2025-03-04 15:25:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2025-03-04 15:25:52,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2025-03-04 15:25:52,828 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 148 flow. Second operand 4 states and 167 transitions. [2025-03-04 15:25:52,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 76 transitions, 304 flow [2025-03-04 15:25:52,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 76 transitions, 292 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:25:52,831 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 138 flow [2025-03-04 15:25:52,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2025-03-04 15:25:52,831 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places. [2025-03-04 15:25:52,831 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 138 flow [2025-03-04 15:25:52,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2025-03-04 15:25:52,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:52,833 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:52,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:25:52,833 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:52,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:52,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2078441565, now seen corresponding path program 1 times [2025-03-04 15:25:52,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:52,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390224707] [2025-03-04 15:25:52,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:52,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:52,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:25:52,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:25:52,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:52,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:52,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:52,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:52,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390224707] [2025-03-04 15:25:52,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390224707] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:52,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:52,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:25:52,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921178397] [2025-03-04 15:25:52,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:52,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:25:52,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:52,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:25:52,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:25:52,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2025-03-04 15:25:52,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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) [2025-03-04 15:25:52,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:52,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2025-03-04 15:25:52,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:53,118 INFO L124 PetriNetUnfolderBase]: 570/1066 cut-off events. [2025-03-04 15:25:53,119 INFO L125 PetriNetUnfolderBase]: For 319/321 co-relation queries the response was YES. [2025-03-04 15:25:53,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2280 conditions, 1066 events. 570/1066 cut-off events. For 319/321 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6375 event pairs, 87 based on Foata normal form. 42/995 useless extension candidates. Maximal degree in co-relation 1789. Up to 285 conditions per place. [2025-03-04 15:25:53,124 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 57 selfloop transitions, 9 changer transitions 0/87 dead transitions. [2025-03-04 15:25:53,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 87 transitions, 348 flow [2025-03-04 15:25:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:25:53,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:25:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 221 transitions. [2025-03-04 15:25:53,125 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6138888888888889 [2025-03-04 15:25:53,125 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 138 flow. Second operand 6 states and 221 transitions. [2025-03-04 15:25:53,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 87 transitions, 348 flow [2025-03-04 15:25:53,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 87 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:25:53,127 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 157 flow [2025-03-04 15:25:53,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=157, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2025-03-04 15:25:53,128 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2025-03-04 15:25:53,128 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 157 flow [2025-03-04 15:25:53,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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) [2025-03-04 15:25:53,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:53,129 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:53,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 15:25:53,129 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:53,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:53,129 INFO L85 PathProgramCache]: Analyzing trace with hash 12524307, now seen corresponding path program 1 times [2025-03-04 15:25:53,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:53,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346357726] [2025-03-04 15:25:53,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:53,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:53,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:25:53,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:25:53,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:53,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:53,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:53,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346357726] [2025-03-04 15:25:53,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346357726] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:53,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:53,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:25:53,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109795101] [2025-03-04 15:25:53,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:53,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:25:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:53,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:25:53,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:25:53,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 60 [2025-03-04 15:25:53,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2025-03-04 15:25:53,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:53,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 60 [2025-03-04 15:25:53,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:53,362 INFO L124 PetriNetUnfolderBase]: 538/1027 cut-off events. [2025-03-04 15:25:53,362 INFO L125 PetriNetUnfolderBase]: For 1040/1118 co-relation queries the response was YES. [2025-03-04 15:25:53,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 1027 events. 538/1027 cut-off events. For 1040/1118 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6196 event pairs, 126 based on Foata normal form. 64/977 useless extension candidates. Maximal degree in co-relation 1258. Up to 351 conditions per place. [2025-03-04 15:25:53,367 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 55 selfloop transitions, 5 changer transitions 0/79 dead transitions. [2025-03-04 15:25:53,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 79 transitions, 405 flow [2025-03-04 15:25:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:25:53,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:25:53,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 197 transitions. [2025-03-04 15:25:53,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666 [2025-03-04 15:25:53,369 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 157 flow. Second operand 5 states and 197 transitions. [2025-03-04 15:25:53,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 79 transitions, 405 flow [2025-03-04 15:25:53,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 79 transitions, 374 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:25:53,374 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 159 flow [2025-03-04 15:25:53,374 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=159, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2025-03-04 15:25:53,374 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2025-03-04 15:25:53,374 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 159 flow [2025-03-04 15:25:53,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 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) [2025-03-04 15:25:53,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:53,375 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:53,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 15:25:53,375 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:53,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:53,375 INFO L85 PathProgramCache]: Analyzing trace with hash 12525300, now seen corresponding path program 1 times [2025-03-04 15:25:53,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:53,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495540450] [2025-03-04 15:25:53,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:53,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:53,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:25:53,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:25:53,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:53,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:53,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:53,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495540450] [2025-03-04 15:25:53,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495540450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:53,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:53,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:25:53,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355972086] [2025-03-04 15:25:53,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:53,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:53,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:53,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:53,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:53,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 60 [2025-03-04 15:25:53,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-04 15:25:53,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:53,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 60 [2025-03-04 15:25:53,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:53,558 INFO L124 PetriNetUnfolderBase]: 599/1259 cut-off events. [2025-03-04 15:25:53,558 INFO L125 PetriNetUnfolderBase]: For 803/883 co-relation queries the response was YES. [2025-03-04 15:25:53,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2790 conditions, 1259 events. 599/1259 cut-off events. For 803/883 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8373 event pairs, 254 based on Foata normal form. 68/1226 useless extension candidates. Maximal degree in co-relation 1553. Up to 562 conditions per place. [2025-03-04 15:25:53,563 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 57 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2025-03-04 15:25:53,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 401 flow [2025-03-04 15:25:53,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:53,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:53,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2025-03-04 15:25:53,564 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2025-03-04 15:25:53,564 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 159 flow. Second operand 4 states and 166 transitions. [2025-03-04 15:25:53,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 401 flow [2025-03-04 15:25:53,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 392 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:25:53,566 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 179 flow [2025-03-04 15:25:53,566 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2025-03-04 15:25:53,566 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 4 predicate places. [2025-03-04 15:25:53,566 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 179 flow [2025-03-04 15:25:53,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-04 15:25:53,567 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:53,567 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:53,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 15:25:53,567 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:53,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash 925868413, now seen corresponding path program 1 times [2025-03-04 15:25:53,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:53,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077016355] [2025-03-04 15:25:53,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:53,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:53,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:25:53,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:25:53,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:53,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:53,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:53,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077016355] [2025-03-04 15:25:53,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077016355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:53,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:53,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:25:53,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437239379] [2025-03-04 15:25:53,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:53,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:25:53,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:53,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:25:53,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:25:53,650 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2025-03-04 15:25:53,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 179 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:53,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:53,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2025-03-04 15:25:53,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:53,823 INFO L124 PetriNetUnfolderBase]: 714/1336 cut-off events. [2025-03-04 15:25:53,823 INFO L125 PetriNetUnfolderBase]: For 909/945 co-relation queries the response was YES. [2025-03-04 15:25:53,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3327 conditions, 1336 events. 714/1336 cut-off events. For 909/945 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8103 event pairs, 242 based on Foata normal form. 48/1310 useless extension candidates. Maximal degree in co-relation 2144. Up to 584 conditions per place. [2025-03-04 15:25:53,830 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 88 selfloop transitions, 8 changer transitions 0/114 dead transitions. [2025-03-04 15:25:53,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 114 transitions, 597 flow [2025-03-04 15:25:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:25:53,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:25:53,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 238 transitions. [2025-03-04 15:25:53,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6611111111111111 [2025-03-04 15:25:53,832 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 179 flow. Second operand 6 states and 238 transitions. [2025-03-04 15:25:53,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 114 transitions, 597 flow [2025-03-04 15:25:53,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 581 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 15:25:53,835 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 200 flow [2025-03-04 15:25:53,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2025-03-04 15:25:53,836 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 8 predicate places. [2025-03-04 15:25:53,836 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 200 flow [2025-03-04 15:25:53,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:53,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:53,836 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:53,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 15:25:53,836 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:53,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash 388253945, now seen corresponding path program 1 times [2025-03-04 15:25:53,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:53,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704805993] [2025-03-04 15:25:53,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:53,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:53,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:25:53,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:25:53,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:53,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:53,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:53,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704805993] [2025-03-04 15:25:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704805993] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:53,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:53,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:25:53,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310913751] [2025-03-04 15:25:53,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:53,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:25:53,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:53,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:25:53,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:25:53,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2025-03-04 15:25:53,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2025-03-04 15:25:53,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:53,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2025-03-04 15:25:53,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:54,074 INFO L124 PetriNetUnfolderBase]: 713/1310 cut-off events. [2025-03-04 15:25:54,074 INFO L125 PetriNetUnfolderBase]: For 1904/1992 co-relation queries the response was YES. [2025-03-04 15:25:54,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3434 conditions, 1310 events. 713/1310 cut-off events. For 1904/1992 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7936 event pairs, 126 based on Foata normal form. 134/1366 useless extension candidates. Maximal degree in co-relation 2264. Up to 328 conditions per place. [2025-03-04 15:25:54,081 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 71 selfloop transitions, 9 changer transitions 0/99 dead transitions. [2025-03-04 15:25:54,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 99 transitions, 576 flow [2025-03-04 15:25:54,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:25:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:25:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 218 transitions. [2025-03-04 15:25:54,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2025-03-04 15:25:54,082 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 200 flow. Second operand 6 states and 218 transitions. [2025-03-04 15:25:54,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 99 transitions, 576 flow [2025-03-04 15:25:54,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 99 transitions, 524 flow, removed 12 selfloop flow, removed 4 redundant places. [2025-03-04 15:25:54,085 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 209 flow [2025-03-04 15:25:54,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2025-03-04 15:25:54,086 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2025-03-04 15:25:54,086 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 209 flow [2025-03-04 15:25:54,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2025-03-04 15:25:54,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:54,086 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:54,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 15:25:54,086 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-04 15:25:54,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash 69659770, now seen corresponding path program 1 times [2025-03-04 15:25:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:54,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008501971] [2025-03-04 15:25:54,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:54,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:54,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:25:54,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:25:54,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:54,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:54,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:54,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:54,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008501971] [2025-03-04 15:25:54,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008501971] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:54,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:54,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:25:54,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301175972] [2025-03-04 15:25:54,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:54,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:54,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:54,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:54,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:54,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 60 [2025-03-04 15:25:54,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2025-03-04 15:25:54,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:54,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 60 [2025-03-04 15:25:54,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:54,259 INFO L124 PetriNetUnfolderBase]: 713/1285 cut-off events. [2025-03-04 15:25:54,259 INFO L125 PetriNetUnfolderBase]: For 1837/1925 co-relation queries the response was YES. [2025-03-04 15:25:54,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3531 conditions, 1285 events. 713/1285 cut-off events. For 1837/1925 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7730 event pairs, 254 based on Foata normal form. 111/1333 useless extension candidates. Maximal degree in co-relation 2339. Up to 585 conditions per place. [2025-03-04 15:25:54,263 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2025-03-04 15:25:54,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 460 flow [2025-03-04 15:25:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:54,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2025-03-04 15:25:54,264 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6791666666666667 [2025-03-04 15:25:54,264 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 209 flow. Second operand 4 states and 163 transitions. [2025-03-04 15:25:54,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 460 flow [2025-03-04 15:25:54,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 446 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:25:54,266 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-03-04 15:25:54,266 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2025-03-04 15:25:54,267 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 7 predicate places. [2025-03-04 15:25:54,267 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-03-04 15:25:54,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2025-03-04 15:25:54,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2025-03-04 15:25:54,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2025-03-04 15:25:54,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 15:25:54,270 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:54,274 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:25:54,275 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:25:54,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:25:54 BasicIcfg [2025-03-04 15:25:54,278 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:25:54,279 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:25:54,279 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:25:54,279 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:25:54,281 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:25:50" (3/4) ... [2025-03-04 15:25:54,283 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:25:54,284 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-04 15:25:54,285 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-04 15:25:54,289 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-03-04 15:25:54,289 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-03-04 15:25:54,290 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 15:25:54,290 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-04 15:25:54,345 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:25:54,345 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:25:54,346 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:25:54,346 INFO L158 Benchmark]: Toolchain (without parser) took 4380.23ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 122.5MB in the beginning and 65.4MB in the end (delta: 57.1MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2025-03-04 15:25:54,347 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:25:54,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.01ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 110.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:25:54,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.15ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:25:54,348 INFO L158 Benchmark]: Boogie Preprocessor took 31.82ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 107.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:25:54,349 INFO L158 Benchmark]: IcfgBuilder took 495.85ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 72.4MB in the end (delta: 35.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-04 15:25:54,349 INFO L158 Benchmark]: TraceAbstraction took 3546.03ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 71.9MB in the beginning and 71.7MB in the end (delta: 218.2kB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2025-03-04 15:25:54,349 INFO L158 Benchmark]: Witness Printer took 67.01ms. Allocated memory is still 201.3MB. Free memory was 71.7MB in the beginning and 65.4MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:25:54,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.01ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 110.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.15ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.82ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 107.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 495.85ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 72.4MB in the end (delta: 35.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3546.03ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 71.9MB in the beginning and 71.7MB in the end (delta: 218.2kB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 67.01ms. Allocated memory is still 201.3MB. Free memory was 71.7MB in the beginning and 65.4MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: 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, 99 locations, 26 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: 3.4s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 941 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 756 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1672 IncrementalHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 30 mSDtfsCounter, 1672 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=12, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 426 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 15:25:54,362 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