./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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-file-item-trans.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 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:41:08,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:41:08,156 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:41:08,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:41:08,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:41:08,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:41:08,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:41:08,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:41:08,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:41:08,188 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:41:08,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:41:08,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:41:08,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:41:08,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:41:08,189 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:41:08,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:41:08,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:41:08,191 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:41:08,191 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:41:08,191 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:41:08,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:41:08,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:41:08,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:41:08,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:41:08,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:41:08,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:41:08,192 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 -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2025-03-17 19:41:08,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:41:08,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:41:08,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:41:08,404 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:41:08,404 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:41:08,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2025-03-17 19:41:09,480 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a318fce/e84404b2ec9748f5ab08fe941b302aa4/FLAGc76b09d08 [2025-03-17 19:41:09,731 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:41:09,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2025-03-17 19:41:09,741 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a318fce/e84404b2ec9748f5ab08fe941b302aa4/FLAGc76b09d08 [2025-03-17 19:41:10,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a318fce/e84404b2ec9748f5ab08fe941b302aa4 [2025-03-17 19:41:10,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:41:10,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:41:10,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:41:10,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:41:10,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:41:10,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49efd45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10, skipping insertion in model container [2025-03-17 19:41:10,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:41:10,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:41:10,187 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:41:10,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:41:10,222 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:41:10,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10 WrapperNode [2025-03-17 19:41:10,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:41:10,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:41:10,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:41:10,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:41:10,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,251 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 236 [2025-03-17 19:41:10,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:41:10,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:41:10,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:41:10,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:41:10,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,270 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]. [2025-03-17 19:41:10,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,274 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:41:10,278 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:41:10,278 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:41:10,278 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:41:10,279 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (1/1) ... [2025-03-17 19:41:10,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:41:10,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:41:10,301 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) [2025-03-17 19:41:10,303 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 [2025-03-17 19:41:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:41:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:41:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:41:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:41:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:41:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-17 19:41:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-17 19:41:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:41:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:41:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:41:10,320 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:41:10,399 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:41:10,401 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:41:10,749 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:41:10,749 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:41:10,959 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:41:10,960 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:41:10,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:41:10 BoogieIcfgContainer [2025-03-17 19:41:10,960 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:41:10,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:41:10,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:41:10,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:41:10,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:41:10" (1/3) ... [2025-03-17 19:41:10,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6936132c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:41:10, skipping insertion in model container [2025-03-17 19:41:10,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:10" (2/3) ... [2025-03-17 19:41:10,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6936132c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:41:10, skipping insertion in model container [2025-03-17 19:41:10,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:41:10" (3/3) ... [2025-03-17 19:41:10,968 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2025-03-17 19:41:10,981 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:41:10,983 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-trans.wvr.c that has 4 procedures, 90 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-03-17 19:41:10,984 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:41:11,057 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-17 19:41:11,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 107 transitions, 235 flow [2025-03-17 19:41:11,152 INFO L124 PetriNetUnfolderBase]: 18/104 cut-off events. [2025-03-17 19:41:11,154 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 19:41:11,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 18/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 393 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2025-03-17 19:41:11,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 107 transitions, 235 flow [2025-03-17 19:41:11,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 102 transitions, 219 flow [2025-03-17 19:41:11,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:41:11,184 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;@781546f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:41:11,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-03-17 19:41:11,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:41:11,199 INFO L124 PetriNetUnfolderBase]: 8/45 cut-off events. [2025-03-17 19:41:11,199 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 19:41:11,200 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:11,200 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:11,205 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:11,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:11,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1801614656, now seen corresponding path program 1 times [2025-03-17 19:41:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:11,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389907984] [2025-03-17 19:41:11,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:11,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:11,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:41:11,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:41:11,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:11,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:11,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:11,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389907984] [2025-03-17 19:41:11,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389907984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:11,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:11,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:11,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466950015] [2025-03-17 19:41:11,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:11,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:11,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:11,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:11,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:11,500 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-17 19:41:11,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 102 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2025-03-17 19:41:11,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:11,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-17 19:41:11,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:13,148 INFO L124 PetriNetUnfolderBase]: 14059/22486 cut-off events. [2025-03-17 19:41:13,148 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2025-03-17 19:41:13,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41488 conditions, 22486 events. 14059/22486 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 1407. Compared 186818 event pairs, 5420 based on Foata normal form. 532/18809 useless extension candidates. Maximal degree in co-relation 40483. Up to 10138 conditions per place. [2025-03-17 19:41:13,307 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 100 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2025-03-17 19:41:13,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 159 transitions, 555 flow [2025-03-17 19:41:13,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2025-03-17 19:41:13,316 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7850467289719626 [2025-03-17 19:41:13,317 INFO L175 Difference]: Start difference. First operand has 94 places, 102 transitions, 219 flow. Second operand 4 states and 336 transitions. [2025-03-17 19:41:13,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 159 transitions, 555 flow [2025-03-17 19:41:13,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 540 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 19:41:13,354 INFO L231 Difference]: Finished difference. Result has 94 places, 104 transitions, 244 flow [2025-03-17 19:41:13,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=104} [2025-03-17 19:41:13,358 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-03-17 19:41:13,358 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 104 transitions, 244 flow [2025-03-17 19:41:13,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2025-03-17 19:41:13,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:13,359 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:13,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:41:13,359 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:13,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:13,360 INFO L85 PathProgramCache]: Analyzing trace with hash -15478869, now seen corresponding path program 1 times [2025-03-17 19:41:13,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:13,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435199135] [2025-03-17 19:41:13,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:13,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:13,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:41:13,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:41:13,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:13,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:13,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:13,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:13,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435199135] [2025-03-17 19:41:13,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435199135] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:13,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:13,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:13,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001692483] [2025-03-17 19:41:13,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:13,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:13,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:13,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:13,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:13,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2025-03-17 19:41:13,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 104 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2025-03-17 19:41:13,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:13,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2025-03-17 19:41:13,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:14,679 INFO L124 PetriNetUnfolderBase]: 10585/19081 cut-off events. [2025-03-17 19:41:14,680 INFO L125 PetriNetUnfolderBase]: For 3433/3455 co-relation queries the response was YES. [2025-03-17 19:41:14,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36848 conditions, 19081 events. 10585/19081 cut-off events. For 3433/3455 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 175693 event pairs, 3367 based on Foata normal form. 22/16403 useless extension candidates. Maximal degree in co-relation 21643. Up to 7399 conditions per place. [2025-03-17 19:41:14,785 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 68 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2025-03-17 19:41:14,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 130 transitions, 443 flow [2025-03-17 19:41:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 311 transitions. [2025-03-17 19:41:14,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7266355140186916 [2025-03-17 19:41:14,789 INFO L175 Difference]: Start difference. First operand has 94 places, 104 transitions, 244 flow. Second operand 4 states and 311 transitions. [2025-03-17 19:41:14,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 130 transitions, 443 flow [2025-03-17 19:41:14,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 130 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:41:14,869 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 250 flow [2025-03-17 19:41:14,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2025-03-17 19:41:14,871 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-03-17 19:41:14,871 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 250 flow [2025-03-17 19:41:14,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2025-03-17 19:41:14,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:14,871 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:14,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:41:14,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:14,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:14,873 INFO L85 PathProgramCache]: Analyzing trace with hash -24668460, now seen corresponding path program 1 times [2025-03-17 19:41:14,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:14,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045197510] [2025-03-17 19:41:14,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:14,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:14,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:41:14,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:41:14,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:14,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:14,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:14,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:14,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045197510] [2025-03-17 19:41:14,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045197510] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:14,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:14,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:14,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195361851] [2025-03-17 19:41:14,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:14,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:14,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:14,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:14,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:15,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2025-03-17 19:41:15,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2025-03-17 19:41:15,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:15,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2025-03-17 19:41:15,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:15,916 INFO L124 PetriNetUnfolderBase]: 10457/18631 cut-off events. [2025-03-17 19:41:15,916 INFO L125 PetriNetUnfolderBase]: For 5317/5832 co-relation queries the response was YES. [2025-03-17 19:41:15,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35999 conditions, 18631 events. 10457/18631 cut-off events. For 5317/5832 co-relation queries the response was YES. Maximal size of possible extension queue 1202. Compared 169680 event pairs, 3897 based on Foata normal form. 904/15948 useless extension candidates. Maximal degree in co-relation 22400. Up to 6904 conditions per place. [2025-03-17 19:41:16,012 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 71 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2025-03-17 19:41:16,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 129 transitions, 477 flow [2025-03-17 19:41:16,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2025-03-17 19:41:16,014 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2025-03-17 19:41:16,014 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 250 flow. Second operand 4 states and 308 transitions. [2025-03-17 19:41:16,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 129 transitions, 477 flow [2025-03-17 19:41:16,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 463 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:16,041 INFO L231 Difference]: Finished difference. Result has 94 places, 101 transitions, 244 flow [2025-03-17 19:41:16,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=101} [2025-03-17 19:41:16,042 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-03-17 19:41:16,042 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 101 transitions, 244 flow [2025-03-17 19:41:16,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2025-03-17 19:41:16,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:16,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:16,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:41:16,043 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:16,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -479875068, now seen corresponding path program 1 times [2025-03-17 19:41:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:16,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365810013] [2025-03-17 19:41:16,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:16,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:16,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:41:16,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:41:16,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:16,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:16,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:16,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:16,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365810013] [2025-03-17 19:41:16,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365810013] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:16,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:16,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:16,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248741888] [2025-03-17 19:41:16,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:16,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:16,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:16,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:16,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:16,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2025-03-17 19:41:16,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 101 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:41:16,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:16,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2025-03-17 19:41:16,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:17,216 INFO L124 PetriNetUnfolderBase]: 10607/18849 cut-off events. [2025-03-17 19:41:17,216 INFO L125 PetriNetUnfolderBase]: For 4879/4901 co-relation queries the response was YES. [2025-03-17 19:41:17,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37310 conditions, 18849 events. 10607/18849 cut-off events. For 4879/4901 co-relation queries the response was YES. Maximal size of possible extension queue 1198. Compared 170795 event pairs, 3367 based on Foata normal form. 288/16736 useless extension candidates. Maximal degree in co-relation 22064. Up to 7665 conditions per place. [2025-03-17 19:41:17,362 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2025-03-17 19:41:17,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 127 transitions, 447 flow [2025-03-17 19:41:17,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:17,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2025-03-17 19:41:17,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2025-03-17 19:41:17,364 INFO L175 Difference]: Start difference. First operand has 94 places, 101 transitions, 244 flow. Second operand 4 states and 307 transitions. [2025-03-17 19:41:17,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 127 transitions, 447 flow [2025-03-17 19:41:17,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 437 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:17,421 INFO L231 Difference]: Finished difference. Result has 93 places, 100 transitions, 242 flow [2025-03-17 19:41:17,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=93, PETRI_TRANSITIONS=100} [2025-03-17 19:41:17,422 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2025-03-17 19:41:17,423 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 100 transitions, 242 flow [2025-03-17 19:41:17,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:41:17,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:17,424 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:17,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:41:17,424 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:17,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:17,425 INFO L85 PathProgramCache]: Analyzing trace with hash -764721610, now seen corresponding path program 1 times [2025-03-17 19:41:17,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:17,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472776049] [2025-03-17 19:41:17,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:17,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:17,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:41:17,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:41:17,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:17,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472776049] [2025-03-17 19:41:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472776049] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:17,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:17,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:17,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543686640] [2025-03-17 19:41:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:17,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:17,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:17,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:17,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:17,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2025-03-17 19:41:17,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 100 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2025-03-17 19:41:17,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:17,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2025-03-17 19:41:17,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:18,267 INFO L124 PetriNetUnfolderBase]: 8675/16503 cut-off events. [2025-03-17 19:41:18,267 INFO L125 PetriNetUnfolderBase]: For 4335/4545 co-relation queries the response was YES. [2025-03-17 19:41:18,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30814 conditions, 16503 events. 8675/16503 cut-off events. For 4335/4545 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 156533 event pairs, 3853 based on Foata normal form. 210/13826 useless extension candidates. Maximal degree in co-relation 19157. Up to 6904 conditions per place. [2025-03-17 19:41:18,344 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2025-03-17 19:41:18,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 127 transitions, 467 flow [2025-03-17 19:41:18,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2025-03-17 19:41:18,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2025-03-17 19:41:18,345 INFO L175 Difference]: Start difference. First operand has 93 places, 100 transitions, 242 flow. Second operand 4 states and 309 transitions. [2025-03-17 19:41:18,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 127 transitions, 467 flow [2025-03-17 19:41:18,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:18,371 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 238 flow [2025-03-17 19:41:18,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2025-03-17 19:41:18,371 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2025-03-17 19:41:18,371 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 238 flow [2025-03-17 19:41:18,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2025-03-17 19:41:18,372 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:18,372 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:18,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:41:18,372 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:18,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1991225587, now seen corresponding path program 1 times [2025-03-17 19:41:18,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:18,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198406438] [2025-03-17 19:41:18,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:18,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:18,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:41:18,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:41:18,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:18,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:18,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:18,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198406438] [2025-03-17 19:41:18,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198406438] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:18,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:18,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:18,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882406809] [2025-03-17 19:41:18,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:18,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:41:18,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:18,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:41:18,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:41:18,480 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2025-03-17 19:41:18,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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) [2025-03-17 19:41:18,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:18,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2025-03-17 19:41:18,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:19,376 INFO L124 PetriNetUnfolderBase]: 14252/22265 cut-off events. [2025-03-17 19:41:19,377 INFO L125 PetriNetUnfolderBase]: For 2765/2765 co-relation queries the response was YES. [2025-03-17 19:41:19,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45808 conditions, 22265 events. 14252/22265 cut-off events. For 2765/2765 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 180885 event pairs, 3279 based on Foata normal form. 0/20198 useless extension candidates. Maximal degree in co-relation 27416. Up to 9347 conditions per place. [2025-03-17 19:41:19,476 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 96 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2025-03-17 19:41:19,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 562 flow [2025-03-17 19:41:19,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:41:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:41:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 392 transitions. [2025-03-17 19:41:19,477 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7327102803738318 [2025-03-17 19:41:19,477 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 238 flow. Second operand 5 states and 392 transitions. [2025-03-17 19:41:19,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 562 flow [2025-03-17 19:41:19,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 152 transitions, 548 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:19,520 INFO L231 Difference]: Finished difference. Result has 92 places, 98 transitions, 242 flow [2025-03-17 19:41:19,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=92, PETRI_TRANSITIONS=98} [2025-03-17 19:41:19,520 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2025-03-17 19:41:19,520 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 98 transitions, 242 flow [2025-03-17 19:41:19,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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) [2025-03-17 19:41:19,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:19,521 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:19,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:41:19,521 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:19,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1991224594, now seen corresponding path program 1 times [2025-03-17 19:41:19,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:19,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657397000] [2025-03-17 19:41:19,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:19,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:41:19,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:41:19,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:19,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:19,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:19,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657397000] [2025-03-17 19:41:19,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657397000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:19,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:19,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:19,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757830481] [2025-03-17 19:41:19,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:19,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:19,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:19,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:19,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:19,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-17 19:41:19,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 98 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:41:19,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:19,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-17 19:41:19,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:20,384 INFO L124 PetriNetUnfolderBase]: 11720/19787 cut-off events. [2025-03-17 19:41:20,384 INFO L125 PetriNetUnfolderBase]: For 6313/6313 co-relation queries the response was YES. [2025-03-17 19:41:20,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40012 conditions, 19787 events. 11720/19787 cut-off events. For 6313/6313 co-relation queries the response was YES. Maximal size of possible extension queue 1242. Compared 172296 event pairs, 5591 based on Foata normal form. 266/17395 useless extension candidates. Maximal degree in co-relation 23802. Up to 10172 conditions per place. [2025-03-17 19:41:20,465 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 98 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2025-03-17 19:41:20,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 556 flow [2025-03-17 19:41:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:20,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2025-03-17 19:41:20,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7733644859813084 [2025-03-17 19:41:20,467 INFO L175 Difference]: Start difference. First operand has 92 places, 98 transitions, 242 flow. Second operand 4 states and 331 transitions. [2025-03-17 19:41:20,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 556 flow [2025-03-17 19:41:20,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 152 transitions, 544 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:41:20,500 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 232 flow [2025-03-17 19:41:20,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2025-03-17 19:41:20,500 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2025-03-17 19:41:20,500 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 232 flow [2025-03-17 19:41:20,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:41:20,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:20,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:20,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:41:20,501 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:20,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:20,501 INFO L85 PathProgramCache]: Analyzing trace with hash -227478969, now seen corresponding path program 1 times [2025-03-17 19:41:20,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:20,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114354667] [2025-03-17 19:41:20,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:20,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:20,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:41:20,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:41:20,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:20,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:20,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:20,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114354667] [2025-03-17 19:41:20,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114354667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:20,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:20,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:20,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980958763] [2025-03-17 19:41:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:20,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:20,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:20,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:20,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:20,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2025-03-17 19:41:20,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2025-03-17 19:41:20,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:20,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2025-03-17 19:41:20,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:21,342 INFO L124 PetriNetUnfolderBase]: 10807/18575 cut-off events. [2025-03-17 19:41:21,342 INFO L125 PetriNetUnfolderBase]: For 4568/4830 co-relation queries the response was YES. [2025-03-17 19:41:21,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35957 conditions, 18575 events. 10807/18575 cut-off events. For 4568/4830 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 163103 event pairs, 4342 based on Foata normal form. 858/16288 useless extension candidates. Maximal degree in co-relation 22598. Up to 7748 conditions per place. [2025-03-17 19:41:21,434 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 70 selfloop transitions, 3 changer transitions 0/122 dead transitions. [2025-03-17 19:41:21,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 122 transitions, 453 flow [2025-03-17 19:41:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:21,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2025-03-17 19:41:21,436 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2025-03-17 19:41:21,436 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 232 flow. Second operand 4 states and 307 transitions. [2025-03-17 19:41:21,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 122 transitions, 453 flow [2025-03-17 19:41:21,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 122 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:41:21,453 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 228 flow [2025-03-17 19:41:21,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2025-03-17 19:41:21,454 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -4 predicate places. [2025-03-17 19:41:21,454 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 228 flow [2025-03-17 19:41:21,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2025-03-17 19:41:21,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:21,455 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:21,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:41:21,455 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:21,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1598450425, now seen corresponding path program 1 times [2025-03-17 19:41:21,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:21,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076815601] [2025-03-17 19:41:21,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:21,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:21,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:41:21,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:41:21,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:21,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:21,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:21,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:21,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076815601] [2025-03-17 19:41:21,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076815601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:21,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:21,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:41:21,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094246981] [2025-03-17 19:41:21,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:21,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:41:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:21,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:41:21,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:41:21,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-17 19:41:21,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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) [2025-03-17 19:41:21,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:21,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-17 19:41:21,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:22,867 INFO L124 PetriNetUnfolderBase]: 13986/21547 cut-off events. [2025-03-17 19:41:22,867 INFO L125 PetriNetUnfolderBase]: For 4337/4359 co-relation queries the response was YES. [2025-03-17 19:41:22,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44423 conditions, 21547 events. 13986/21547 cut-off events. For 4337/4359 co-relation queries the response was YES. Maximal size of possible extension queue 1393. Compared 171792 event pairs, 3257 based on Foata normal form. 554/20071 useless extension candidates. Maximal degree in co-relation 25389. Up to 6227 conditions per place. [2025-03-17 19:41:22,999 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 120 selfloop transitions, 9 changer transitions 0/176 dead transitions. [2025-03-17 19:41:22,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 176 transitions, 669 flow [2025-03-17 19:41:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:41:23,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:41:23,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2025-03-17 19:41:23,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7133956386292835 [2025-03-17 19:41:23,001 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 228 flow. Second operand 6 states and 458 transitions. [2025-03-17 19:41:23,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 176 transitions, 669 flow [2025-03-17 19:41:23,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 176 transitions, 651 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:23,050 INFO L231 Difference]: Finished difference. Result has 92 places, 95 transitions, 247 flow [2025-03-17 19:41:23,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=92, PETRI_TRANSITIONS=95} [2025-03-17 19:41:23,051 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2025-03-17 19:41:23,051 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 95 transitions, 247 flow [2025-03-17 19:41:23,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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) [2025-03-17 19:41:23,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:23,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:23,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 19:41:23,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:23,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:23,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1538087234, now seen corresponding path program 1 times [2025-03-17 19:41:23,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:23,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605219444] [2025-03-17 19:41:23,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:23,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:23,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:41:23,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:41:23,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:23,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:23,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:23,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605219444] [2025-03-17 19:41:23,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605219444] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:23,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:23,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:23,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249873093] [2025-03-17 19:41:23,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:23,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:23,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:23,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:23,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:23,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2025-03-17 19:41:23,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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) [2025-03-17 19:41:23,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:23,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2025-03-17 19:41:23,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:23,878 INFO L124 PetriNetUnfolderBase]: 9136/16452 cut-off events. [2025-03-17 19:41:23,878 INFO L125 PetriNetUnfolderBase]: For 9075/9646 co-relation queries the response was YES. [2025-03-17 19:41:23,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33028 conditions, 16452 events. 9136/16452 cut-off events. For 9075/9646 co-relation queries the response was YES. Maximal size of possible extension queue 1007. Compared 148242 event pairs, 4343 based on Foata normal form. 504/14616 useless extension candidates. Maximal degree in co-relation 20054. Up to 7750 conditions per place. [2025-03-17 19:41:23,975 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 70 selfloop transitions, 3 changer transitions 0/122 dead transitions. [2025-03-17 19:41:23,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 122 transitions, 484 flow [2025-03-17 19:41:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:23,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:23,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2025-03-17 19:41:23,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2025-03-17 19:41:23,976 INFO L175 Difference]: Start difference. First operand has 92 places, 95 transitions, 247 flow. Second operand 4 states and 308 transitions. [2025-03-17 19:41:23,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 122 transitions, 484 flow [2025-03-17 19:41:24,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 122 transitions, 462 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:41:24,014 INFO L231 Difference]: Finished difference. Result has 90 places, 94 transitions, 238 flow [2025-03-17 19:41:24,015 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=90, PETRI_TRANSITIONS=94} [2025-03-17 19:41:24,015 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -4 predicate places. [2025-03-17 19:41:24,015 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 94 transitions, 238 flow [2025-03-17 19:41:24,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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) [2025-03-17 19:41:24,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:24,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:24,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 19:41:24,016 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:24,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash -458992968, now seen corresponding path program 1 times [2025-03-17 19:41:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:24,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51358544] [2025-03-17 19:41:24,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:24,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:24,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:41:24,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:41:24,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:24,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:24,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:24,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51358544] [2025-03-17 19:41:24,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51358544] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:24,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:24,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343383024] [2025-03-17 19:41:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:24,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:41:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:24,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:41:24,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:41:24,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2025-03-17 19:41:24,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 94 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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) [2025-03-17 19:41:24,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:24,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2025-03-17 19:41:24,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:24,900 INFO L124 PetriNetUnfolderBase]: 12990/20556 cut-off events. [2025-03-17 19:41:24,900 INFO L125 PetriNetUnfolderBase]: For 8450/9506 co-relation queries the response was YES. [2025-03-17 19:41:24,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43637 conditions, 20556 events. 12990/20556 cut-off events. For 8450/9506 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 167524 event pairs, 3854 based on Foata normal form. 854/18979 useless extension candidates. Maximal degree in co-relation 27259. Up to 6906 conditions per place. [2025-03-17 19:41:25,040 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 103 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2025-03-17 19:41:25,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 152 transitions, 636 flow [2025-03-17 19:41:25,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:41:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:41:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 390 transitions. [2025-03-17 19:41:25,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7289719626168224 [2025-03-17 19:41:25,042 INFO L175 Difference]: Start difference. First operand has 90 places, 94 transitions, 238 flow. Second operand 5 states and 390 transitions. [2025-03-17 19:41:25,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 152 transitions, 636 flow [2025-03-17 19:41:25,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 152 transitions, 622 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:25,078 INFO L231 Difference]: Finished difference. Result has 91 places, 94 transitions, 247 flow [2025-03-17 19:41:25,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=247, PETRI_PLACES=91, PETRI_TRANSITIONS=94} [2025-03-17 19:41:25,078 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2025-03-17 19:41:25,078 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 94 transitions, 247 flow [2025-03-17 19:41:25,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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) [2025-03-17 19:41:25,078 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:25,079 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:25,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 19:41:25,079 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:25,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash -458991975, now seen corresponding path program 1 times [2025-03-17 19:41:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:25,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437941318] [2025-03-17 19:41:25,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:25,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:25,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:41:25,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:41:25,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:25,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:25,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:25,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437941318] [2025-03-17 19:41:25,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437941318] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:25,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:25,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:25,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568105682] [2025-03-17 19:41:25,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:25,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:25,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:25,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:25,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:25,124 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-17 19:41:25,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 94 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2025-03-17 19:41:25,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:25,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-17 19:41:25,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:26,062 INFO L124 PetriNetUnfolderBase]: 14167/24138 cut-off events. [2025-03-17 19:41:26,062 INFO L125 PetriNetUnfolderBase]: For 10071/11153 co-relation queries the response was YES. [2025-03-17 19:41:26,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50807 conditions, 24138 events. 14167/24138 cut-off events. For 10071/11153 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 215997 event pairs, 6696 based on Foata normal form. 900/22268 useless extension candidates. Maximal degree in co-relation 31982. Up to 11994 conditions per place. [2025-03-17 19:41:26,313 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 105 selfloop transitions, 5 changer transitions 0/155 dead transitions. [2025-03-17 19:41:26,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 155 transitions, 649 flow [2025-03-17 19:41:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2025-03-17 19:41:26,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7710280373831776 [2025-03-17 19:41:26,314 INFO L175 Difference]: Start difference. First operand has 91 places, 94 transitions, 247 flow. Second operand 4 states and 330 transitions. [2025-03-17 19:41:26,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 155 transitions, 649 flow [2025-03-17 19:41:26,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 155 transitions, 640 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:26,347 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 267 flow [2025-03-17 19:41:26,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2025-03-17 19:41:26,348 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2025-03-17 19:41:26,348 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 267 flow [2025-03-17 19:41:26,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2025-03-17 19:41:26,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:26,348 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:26,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:41:26,348 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:26,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:26,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1388633356, now seen corresponding path program 1 times [2025-03-17 19:41:26,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:26,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019774421] [2025-03-17 19:41:26,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:26,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:26,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:41:26,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:41:26,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:26,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:26,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:26,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019774421] [2025-03-17 19:41:26,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019774421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:26,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:26,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:26,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604889059] [2025-03-17 19:41:26,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:26,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:26,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:26,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:26,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:26,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-17 19:41:26,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:41:26,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:26,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-17 19:41:26,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:27,408 INFO L124 PetriNetUnfolderBase]: 16726/26282 cut-off events. [2025-03-17 19:41:27,408 INFO L125 PetriNetUnfolderBase]: For 14777/15546 co-relation queries the response was YES. [2025-03-17 19:41:27,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59085 conditions, 26282 events. 16726/26282 cut-off events. For 14777/15546 co-relation queries the response was YES. Maximal size of possible extension queue 1521. Compared 217826 event pairs, 6616 based on Foata normal form. 1013/24702 useless extension candidates. Maximal degree in co-relation 40708. Up to 12435 conditions per place. [2025-03-17 19:41:27,601 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 106 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2025-03-17 19:41:27,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 156 transitions, 662 flow [2025-03-17 19:41:27,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2025-03-17 19:41:27,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7686915887850467 [2025-03-17 19:41:27,602 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 267 flow. Second operand 4 states and 329 transitions. [2025-03-17 19:41:27,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 156 transitions, 662 flow [2025-03-17 19:41:27,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 156 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:41:27,625 INFO L231 Difference]: Finished difference. Result has 94 places, 96 transitions, 274 flow [2025-03-17 19:41:27,625 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=94, PETRI_TRANSITIONS=96} [2025-03-17 19:41:27,626 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-03-17 19:41:27,626 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 96 transitions, 274 flow [2025-03-17 19:41:27,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:41:27,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:27,626 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:27,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 19:41:27,626 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:27,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:27,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1343879461, now seen corresponding path program 1 times [2025-03-17 19:41:27,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:27,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95783620] [2025-03-17 19:41:27,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:27,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:27,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 19:41:27,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 19:41:27,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:27,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:27,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:27,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95783620] [2025-03-17 19:41:27,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95783620] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:27,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:27,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:41:27,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271541716] [2025-03-17 19:41:27,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:27,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:41:27,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:27,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:41:27,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:41:27,724 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-17 19:41:27,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2025-03-17 19:41:27,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:27,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-17 19:41:27,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:28,966 INFO L124 PetriNetUnfolderBase]: 18085/28125 cut-off events. [2025-03-17 19:41:28,967 INFO L125 PetriNetUnfolderBase]: For 21000/22164 co-relation queries the response was YES. [2025-03-17 19:41:29,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66304 conditions, 28125 events. 18085/28125 cut-off events. For 21000/22164 co-relation queries the response was YES. Maximal size of possible extension queue 1662. Compared 231744 event pairs, 4142 based on Foata normal form. 1858/27582 useless extension candidates. Maximal degree in co-relation 53409. Up to 7779 conditions per place. [2025-03-17 19:41:29,149 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 134 selfloop transitions, 9 changer transitions 0/186 dead transitions. [2025-03-17 19:41:29,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 186 transitions, 860 flow [2025-03-17 19:41:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:41:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:41:29,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2025-03-17 19:41:29,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7087227414330218 [2025-03-17 19:41:29,151 INFO L175 Difference]: Start difference. First operand has 94 places, 96 transitions, 274 flow. Second operand 6 states and 455 transitions. [2025-03-17 19:41:29,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 186 transitions, 860 flow [2025-03-17 19:41:29,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 186 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:41:29,239 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 295 flow [2025-03-17 19:41:29,239 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2025-03-17 19:41:29,240 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 4 predicate places. [2025-03-17 19:41:29,240 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 295 flow [2025-03-17 19:41:29,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2025-03-17 19:41:29,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:29,240 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:29,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 19:41:29,240 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:29,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:29,240 INFO L85 PathProgramCache]: Analyzing trace with hash 632150661, now seen corresponding path program 1 times [2025-03-17 19:41:29,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:29,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096779133] [2025-03-17 19:41:29,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:29,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:29,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:41:29,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:41:29,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:29,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:29,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:29,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:29,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096779133] [2025-03-17 19:41:29,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096779133] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:29,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:29,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:29,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367659588] [2025-03-17 19:41:29,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:29,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:29,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:29,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:29,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:29,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-17 19:41:29,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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) [2025-03-17 19:41:29,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:29,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-17 19:41:29,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:30,750 INFO L124 PetriNetUnfolderBase]: 18534/32069 cut-off events. [2025-03-17 19:41:30,750 INFO L125 PetriNetUnfolderBase]: For 30143/32752 co-relation queries the response was YES. [2025-03-17 19:41:30,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74536 conditions, 32069 events. 18534/32069 cut-off events. For 30143/32752 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 300219 event pairs, 9143 based on Foata normal form. 2203/30488 useless extension candidates. Maximal degree in co-relation 60856. Up to 16209 conditions per place. [2025-03-17 19:41:30,972 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 118 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2025-03-17 19:41:30,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 166 transitions, 829 flow [2025-03-17 19:41:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:30,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:30,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2025-03-17 19:41:30,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7663551401869159 [2025-03-17 19:41:30,973 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 295 flow. Second operand 4 states and 328 transitions. [2025-03-17 19:41:30,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 166 transitions, 829 flow [2025-03-17 19:41:31,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 166 transitions, 798 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:41:31,012 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 309 flow [2025-03-17 19:41:31,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=309, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2025-03-17 19:41:31,013 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2025-03-17 19:41:31,013 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 309 flow [2025-03-17 19:41:31,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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) [2025-03-17 19:41:31,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:31,013 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:31,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 19:41:31,013 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:31,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:31,014 INFO L85 PathProgramCache]: Analyzing trace with hash 632149668, now seen corresponding path program 1 times [2025-03-17 19:41:31,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:31,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937995579] [2025-03-17 19:41:31,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:31,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:31,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:41:31,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:41:31,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:31,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:31,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:31,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937995579] [2025-03-17 19:41:31,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937995579] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:31,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:31,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:31,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614877730] [2025-03-17 19:41:31,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:31,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:41:31,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:31,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:41:31,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:41:31,085 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2025-03-17 19:41:31,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2025-03-17 19:41:31,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:31,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2025-03-17 19:41:31,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:32,883 INFO L124 PetriNetUnfolderBase]: 21762/34292 cut-off events. [2025-03-17 19:41:32,883 INFO L125 PetriNetUnfolderBase]: For 30639/34082 co-relation queries the response was YES. [2025-03-17 19:41:32,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85580 conditions, 34292 events. 21762/34292 cut-off events. For 30639/34082 co-relation queries the response was YES. Maximal size of possible extension queue 1848. Compared 290604 event pairs, 5615 based on Foata normal form. 2747/34919 useless extension candidates. Maximal degree in co-relation 69848. Up to 13842 conditions per place. [2025-03-17 19:41:33,096 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 117 selfloop transitions, 6 changer transitions 0/164 dead transitions. [2025-03-17 19:41:33,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 164 transitions, 817 flow [2025-03-17 19:41:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:41:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:41:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 388 transitions. [2025-03-17 19:41:33,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7252336448598131 [2025-03-17 19:41:33,098 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 309 flow. Second operand 5 states and 388 transitions. [2025-03-17 19:41:33,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 164 transitions, 817 flow [2025-03-17 19:41:33,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 164 transitions, 814 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:41:33,261 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 323 flow [2025-03-17 19:41:33,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2025-03-17 19:41:33,261 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2025-03-17 19:41:33,261 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 323 flow [2025-03-17 19:41:33,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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) [2025-03-17 19:41:33,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:33,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:33,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 19:41:33,262 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:33,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2086868033, now seen corresponding path program 1 times [2025-03-17 19:41:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:33,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113672811] [2025-03-17 19:41:33,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:33,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:41:33,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:41:33,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:33,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:33,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:33,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113672811] [2025-03-17 19:41:33,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113672811] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:33,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:33,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 19:41:33,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073449202] [2025-03-17 19:41:33,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:33,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:41:33,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:33,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:41:33,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:41:33,351 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-17 19:41:33,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 323 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2025-03-17 19:41:33,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:33,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-17 19:41:33,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:35,414 INFO L124 PetriNetUnfolderBase]: 21288/33465 cut-off events. [2025-03-17 19:41:35,414 INFO L125 PetriNetUnfolderBase]: For 31236/33151 co-relation queries the response was YES. [2025-03-17 19:41:35,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86247 conditions, 33465 events. 21288/33465 cut-off events. For 31236/33151 co-relation queries the response was YES. Maximal size of possible extension queue 1825. Compared 282162 event pairs, 8769 based on Foata normal form. 2117/33506 useless extension candidates. Maximal degree in co-relation 70248. Up to 16026 conditions per place. [2025-03-17 19:41:35,726 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 182 selfloop transitions, 8 changer transitions 0/230 dead transitions. [2025-03-17 19:41:35,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 230 transitions, 1219 flow [2025-03-17 19:41:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:41:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:41:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2025-03-17 19:41:35,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7570093457943925 [2025-03-17 19:41:35,728 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 323 flow. Second operand 6 states and 486 transitions. [2025-03-17 19:41:35,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 230 transitions, 1219 flow [2025-03-17 19:41:36,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 230 transitions, 1181 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-17 19:41:36,038 INFO L231 Difference]: Finished difference. Result has 104 places, 98 transitions, 332 flow [2025-03-17 19:41:36,038 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=104, PETRI_TRANSITIONS=98} [2025-03-17 19:41:36,039 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 10 predicate places. [2025-03-17 19:41:36,039 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 98 transitions, 332 flow [2025-03-17 19:41:36,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2025-03-17 19:41:36,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:36,039 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:36,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 19:41:36,039 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:36,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:36,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1878196082, now seen corresponding path program 1 times [2025-03-17 19:41:36,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:36,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492786582] [2025-03-17 19:41:36,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:36,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:36,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:41:36,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:41:36,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:36,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492786582] [2025-03-17 19:41:36,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492786582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:36,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:36,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:41:36,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425387278] [2025-03-17 19:41:36,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:36,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:41:36,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:36,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:41:36,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:41:36,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-17 19:41:36,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 98 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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) [2025-03-17 19:41:36,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:36,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-17 19:41:36,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:37,733 INFO L124 PetriNetUnfolderBase]: 21212/32800 cut-off events. [2025-03-17 19:41:37,733 INFO L125 PetriNetUnfolderBase]: For 43675/46408 co-relation queries the response was YES. [2025-03-17 19:41:37,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86176 conditions, 32800 events. 21212/32800 cut-off events. For 43675/46408 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 271311 event pairs, 5615 based on Foata normal form. 3489/34169 useless extension candidates. Maximal degree in co-relation 70314. Up to 10190 conditions per place. [2025-03-17 19:41:38,009 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 147 selfloop transitions, 9 changer transitions 0/197 dead transitions. [2025-03-17 19:41:38,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 197 transitions, 1070 flow [2025-03-17 19:41:38,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:41:38,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:41:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2025-03-17 19:41:38,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7040498442367601 [2025-03-17 19:41:38,011 INFO L175 Difference]: Start difference. First operand has 104 places, 98 transitions, 332 flow. Second operand 6 states and 452 transitions. [2025-03-17 19:41:38,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 197 transitions, 1070 flow [2025-03-17 19:41:38,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 197 transitions, 1037 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-17 19:41:38,172 INFO L231 Difference]: Finished difference. Result has 107 places, 98 transitions, 348 flow [2025-03-17 19:41:38,172 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=348, PETRI_PLACES=107, PETRI_TRANSITIONS=98} [2025-03-17 19:41:38,172 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 13 predicate places. [2025-03-17 19:41:38,172 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 98 transitions, 348 flow [2025-03-17 19:41:38,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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) [2025-03-17 19:41:38,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:38,173 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:38,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 19:41:38,173 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-17 19:41:38,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:38,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1470814069, now seen corresponding path program 1 times [2025-03-17 19:41:38,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:38,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996726633] [2025-03-17 19:41:38,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:38,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:38,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 19:41:38,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 19:41:38,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:38,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:38,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:41:38,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:38,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996726633] [2025-03-17 19:41:38,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996726633] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:38,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:38,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 19:41:38,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537368977] [2025-03-17 19:41:38,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:38,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:41:38,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:38,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:41:38,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:41:38,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-17 19:41:38,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 98 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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) [2025-03-17 19:41:38,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:38,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-17 19:41:38,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:39,881 INFO L124 PetriNetUnfolderBase]: 20834/31454 cut-off events. [2025-03-17 19:41:39,881 INFO L125 PetriNetUnfolderBase]: For 41863/44491 co-relation queries the response was YES. [2025-03-17 19:41:39,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86132 conditions, 31454 events. 20834/31454 cut-off events. For 41863/44491 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 252767 event pairs, 9143 based on Foata normal form. 3006/33036 useless extension candidates. Maximal degree in co-relation 70213. Up to 16269 conditions per place. [2025-03-17 19:41:40,019 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 0 selfloop transitions, 0 changer transitions 230/230 dead transitions. [2025-03-17 19:41:40,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 230 transitions, 1262 flow [2025-03-17 19:41:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:41:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:41:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2025-03-17 19:41:40,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7507788161993769 [2025-03-17 19:41:40,020 INFO L175 Difference]: Start difference. First operand has 107 places, 98 transitions, 348 flow. Second operand 6 states and 482 transitions. [2025-03-17 19:41:40,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 230 transitions, 1262 flow [2025-03-17 19:41:40,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 230 transitions, 1244 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-17 19:41:40,171 INFO L231 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2025-03-17 19:41:40,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2025-03-17 19:41:40,171 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2025-03-17 19:41:40,171 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2025-03-17 19:41:40,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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) [2025-03-17 19:41:40,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-03-17 19:41:40,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-03-17 19:41:40,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-03-17 19:41:40,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-03-17 19:41:40,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 19:41:40,175 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:40,183 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:41:40,183 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:41:40,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:41:40 BasicIcfg [2025-03-17 19:41:40,187 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:41:40,187 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:41:40,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:41:40,188 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:41:40,188 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:41:10" (3/4) ... [2025-03-17 19:41:40,189 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:41:40,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 19:41:40,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 19:41:40,191 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-17 19:41:40,194 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2025-03-17 19:41:40,194 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-03-17 19:41:40,194 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-17 19:41:40,194 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 19:41:40,246 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:41:40,246 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:41:40,246 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:41:40,247 INFO L158 Benchmark]: Toolchain (without parser) took 30203.68ms. Allocated memory was 167.8MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 122.5MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 648.4MB. Max. memory is 16.1GB. [2025-03-17 19:41:40,247 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:41:40,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.14ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 110.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:41:40,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.06ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 108.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:41:40,248 INFO L158 Benchmark]: Boogie Preprocessor took 25.27ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 106.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:41:40,248 INFO L158 Benchmark]: IcfgBuilder took 682.44ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 53.5MB in the end (delta: 53.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-17 19:41:40,248 INFO L158 Benchmark]: TraceAbstraction took 29224.17ms. Allocated memory was 167.8MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 53.1MB in the beginning and 2.9GB in the end (delta: -2.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2025-03-17 19:41:40,248 INFO L158 Benchmark]: Witness Printer took 59.08ms. Allocated memory is still 3.6GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:41:40,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.14ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 110.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.06ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 108.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.27ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 106.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 682.44ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 53.5MB in the end (delta: 53.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 29224.17ms. Allocated memory was 167.8MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 53.1MB in the beginning and 2.9GB in the end (delta: -2.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. * Witness Printer took 59.08ms. Allocated memory is still 3.6GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: 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 7 procedures, 171 locations, 206 edges, 39 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: 29.1s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2133 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1874 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4193 IncrementalHoareTripleChecker+Invalid, 4292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 73 mSDtfsCounter, 4193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=18, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 19:41:40,262 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