./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i -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 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:19:39,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:19:39,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:19:39,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:19:39,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:19:39,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:19:39,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:19:39,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:19:39,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:19:39,793 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:19:39,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:19:39,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:19:39,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:19:39,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:19:39,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:19:39,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:19:39,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:19:39,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:19:39,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:19:39,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:19:39,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:19:39,798 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 -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb [2025-03-04 15:19:40,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:19:40,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:19:40,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:19:40,008 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:19:40,008 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:19:40,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-04 15:19:41,093 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6cd6146c/e065217f775240529800be7810cbfccc/FLAG8af0422b7 [2025-03-04 15:19:41,347 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:19:41,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-04 15:19:41,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6cd6146c/e065217f775240529800be7810cbfccc/FLAG8af0422b7 [2025-03-04 15:19:41,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6cd6146c/e065217f775240529800be7810cbfccc [2025-03-04 15:19:41,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:19:41,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:19:41,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:19:41,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:19:41,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:19:41,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730c8580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41, skipping insertion in model container [2025-03-04 15:19:41,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:19:41,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:19:41,726 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:19:41,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:19:41,790 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:19:41,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41 WrapperNode [2025-03-04 15:19:41,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:19:41,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:19:41,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:19:41,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:19:41,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,822 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2025-03-04 15:19:41,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:19:41,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:19:41,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:19:41,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:19:41,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,838 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2025-03-04 15:19:41,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,842 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:19:41,845 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:19:41,845 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:19:41,845 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:19:41,846 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (1/1) ... [2025-03-04 15:19:41,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:19:41,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:19:41,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 15:19:41,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 15:19:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 15:19:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 15:19:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:19:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 15:19:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 15:19:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:19:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:19:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:19:41,891 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:19:41,981 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:19:41,982 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:19:42,106 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:19:42,106 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:19:42,169 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:19:42,169 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:19:42,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:19:42 BoogieIcfgContainer [2025-03-04 15:19:42,170 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:19:42,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:19:42,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:19:42,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:19:42,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:19:41" (1/3) ... [2025-03-04 15:19:42,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6ef791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:19:42, skipping insertion in model container [2025-03-04 15:19:42,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:19:41" (2/3) ... [2025-03-04 15:19:42,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6ef791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:19:42, skipping insertion in model container [2025-03-04 15:19:42,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:19:42" (3/3) ... [2025-03-04 15:19:42,178 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2025-03-04 15:19:42,189 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:19:42,190 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_17-ps_add1_nr.i that has 2 procedures, 40 locations, 1 initial locations, 0 loop locations, and 10 error locations. [2025-03-04 15:19:42,190 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:19:42,223 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 15:19:42,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 90 flow [2025-03-04 15:19:42,279 INFO L124 PetriNetUnfolderBase]: 4/42 cut-off events. [2025-03-04 15:19:42,280 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:19:42,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 4/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2025-03-04 15:19:42,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 90 flow [2025-03-04 15:19:42,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 42 transitions, 87 flow [2025-03-04 15:19:42,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:19:42,305 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;@2cea42d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:19:42,306 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-04 15:19:42,312 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:19:42,313 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2025-03-04 15:19:42,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:19:42,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:42,314 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 15:19:42,315 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:42,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1442007745, now seen corresponding path program 1 times [2025-03-04 15:19:42,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:42,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022256203] [2025-03-04 15:19:42,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:42,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:42,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:19:42,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:19:42,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:42,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:42,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:42,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022256203] [2025-03-04 15:19:42,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022256203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:42,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:42,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:19:42,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496815717] [2025-03-04 15:19:42,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:42,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:42,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:42,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:42,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:42,609 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2025-03-04 15:19:42,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:42,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:42,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2025-03-04 15:19:42,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:42,752 INFO L124 PetriNetUnfolderBase]: 97/268 cut-off events. [2025-03-04 15:19:42,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:19:42,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 268 events. 97/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1225 event pairs, 22 based on Foata normal form. 16/251 useless extension candidates. Maximal degree in co-relation 457. Up to 133 conditions per place. [2025-03-04 15:19:42,755 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 35 selfloop transitions, 6 changer transitions 12/74 dead transitions. [2025-03-04 15:19:42,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 74 transitions, 257 flow [2025-03-04 15:19:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:19:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:19:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2025-03-04 15:19:42,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7767441860465116 [2025-03-04 15:19:42,765 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 87 flow. Second operand 5 states and 167 transitions. [2025-03-04 15:19:42,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 74 transitions, 257 flow [2025-03-04 15:19:42,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 74 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:19:42,772 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 128 flow [2025-03-04 15:19:42,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2025-03-04 15:19:42,779 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2025-03-04 15:19:42,779 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 128 flow [2025-03-04 15:19:42,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:42,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:42,779 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:42,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:19:42,779 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:42,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1735400998, now seen corresponding path program 1 times [2025-03-04 15:19:42,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:42,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559589407] [2025-03-04 15:19:42,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:42,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:42,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:19:42,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:19:42,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:42,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:42,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:42,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559589407] [2025-03-04 15:19:42,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559589407] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:42,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:42,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:42,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949119089] [2025-03-04 15:19:42,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:42,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:42,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:42,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:42,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:42,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-04 15:19:42,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:42,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:42,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-04 15:19:42,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:43,012 INFO L124 PetriNetUnfolderBase]: 171/492 cut-off events. [2025-03-04 15:19:43,013 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2025-03-04 15:19:43,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 492 events. 171/492 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2865 event pairs, 67 based on Foata normal form. 12/447 useless extension candidates. Maximal degree in co-relation 988. Up to 195 conditions per place. [2025-03-04 15:19:43,020 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 51 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2025-03-04 15:19:43,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 345 flow [2025-03-04 15:19:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:19:43,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:19:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2025-03-04 15:19:43,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6372093023255814 [2025-03-04 15:19:43,022 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 128 flow. Second operand 5 states and 137 transitions. [2025-03-04 15:19:43,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 345 flow [2025-03-04 15:19:43,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 345 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:19:43,024 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 195 flow [2025-03-04 15:19:43,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2025-03-04 15:19:43,026 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2025-03-04 15:19:43,027 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 195 flow [2025-03-04 15:19:43,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,027 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:43,027 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:43,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:19:43,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:43,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:43,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2037163544, now seen corresponding path program 1 times [2025-03-04 15:19:43,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:43,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025438082] [2025-03-04 15:19:43,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:43,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:43,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:19:43,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:19:43,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:43,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:43,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:43,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025438082] [2025-03-04 15:19:43,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025438082] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:43,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:43,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:19:43,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345398722] [2025-03-04 15:19:43,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:43,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:43,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:43,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:43,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:43,134 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-04 15:19:43,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:43,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-04 15:19:43,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:43,227 INFO L124 PetriNetUnfolderBase]: 171/495 cut-off events. [2025-03-04 15:19:43,227 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2025-03-04 15:19:43,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 495 events. 171/495 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2832 event pairs, 82 based on Foata normal form. 6/468 useless extension candidates. Maximal degree in co-relation 1174. Up to 224 conditions per place. [2025-03-04 15:19:43,230 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 9 changer transitions 6/65 dead transitions. [2025-03-04 15:19:43,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 336 flow [2025-03-04 15:19:43,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:19:43,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:19:43,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-03-04 15:19:43,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2025-03-04 15:19:43,234 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 195 flow. Second operand 4 states and 104 transitions. [2025-03-04 15:19:43,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 336 flow [2025-03-04 15:19:43,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 336 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:19:43,239 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 209 flow [2025-03-04 15:19:43,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2025-03-04 15:19:43,240 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-04 15:19:43,240 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 209 flow [2025-03-04 15:19:43,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:43,240 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:43,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:19:43,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:43,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:43,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2037143790, now seen corresponding path program 1 times [2025-03-04 15:19:43,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:43,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529205588] [2025-03-04 15:19:43,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:43,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:43,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:19:43,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:19:43,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:43,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:43,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:43,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529205588] [2025-03-04 15:19:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529205588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:43,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:43,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564347961] [2025-03-04 15:19:43,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:43,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:43,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:43,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:43,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:43,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-04 15:19:43,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:43,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-04 15:19:43,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:43,413 INFO L124 PetriNetUnfolderBase]: 161/465 cut-off events. [2025-03-04 15:19:43,414 INFO L125 PetriNetUnfolderBase]: For 435/437 co-relation queries the response was YES. [2025-03-04 15:19:43,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 465 events. 161/465 cut-off events. For 435/437 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2660 event pairs, 91 based on Foata normal form. 6/439 useless extension candidates. Maximal degree in co-relation 1179. Up to 269 conditions per place. [2025-03-04 15:19:43,416 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 40 selfloop transitions, 6 changer transitions 2/64 dead transitions. [2025-03-04 15:19:43,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 348 flow [2025-03-04 15:19:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:19:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:19:43,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-03-04 15:19:43,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2025-03-04 15:19:43,417 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 209 flow. Second operand 4 states and 106 transitions. [2025-03-04 15:19:43,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 348 flow [2025-03-04 15:19:43,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 330 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:19:43,420 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 199 flow [2025-03-04 15:19:43,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2025-03-04 15:19:43,421 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-04 15:19:43,421 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 199 flow [2025-03-04 15:19:43,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,421 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:43,421 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:43,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:19:43,421 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:43,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:43,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1272439696, now seen corresponding path program 1 times [2025-03-04 15:19:43,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:43,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305348389] [2025-03-04 15:19:43,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:43,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:43,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:19:43,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:19:43,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:43,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:43,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:43,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305348389] [2025-03-04 15:19:43,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305348389] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:43,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:43,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:43,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921164051] [2025-03-04 15:19:43,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:43,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:19:43,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:43,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:19:43,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:19:43,502 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-04 15:19:43,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 199 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:43,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-04 15:19:43,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:43,577 INFO L124 PetriNetUnfolderBase]: 149/441 cut-off events. [2025-03-04 15:19:43,577 INFO L125 PetriNetUnfolderBase]: For 392/396 co-relation queries the response was YES. [2025-03-04 15:19:43,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 441 events. 149/441 cut-off events. For 392/396 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2535 event pairs, 53 based on Foata normal form. 16/427 useless extension candidates. Maximal degree in co-relation 1084. Up to 160 conditions per place. [2025-03-04 15:19:43,579 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 34 selfloop transitions, 12 changer transitions 9/71 dead transitions. [2025-03-04 15:19:43,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 379 flow [2025-03-04 15:19:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:19:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:19:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-03-04 15:19:43,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5906976744186047 [2025-03-04 15:19:43,580 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 199 flow. Second operand 5 states and 127 transitions. [2025-03-04 15:19:43,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 379 flow [2025-03-04 15:19:43,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 71 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:19:43,582 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 211 flow [2025-03-04 15:19:43,582 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=57, PETRI_TRANSITIONS=48} [2025-03-04 15:19:43,583 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-04 15:19:43,583 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 211 flow [2025-03-04 15:19:43,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:43,583 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:43,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:19:43,583 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:43,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:43,584 INFO L85 PathProgramCache]: Analyzing trace with hash 790925085, now seen corresponding path program 1 times [2025-03-04 15:19:43,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:43,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669824983] [2025-03-04 15:19:43,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:43,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:43,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:19:43,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:19:43,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:43,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:43,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669824983] [2025-03-04 15:19:43,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669824983] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:43,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:43,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845539238] [2025-03-04 15:19:43,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:43,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:19:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:43,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:19:43,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:19:43,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2025-03-04 15:19:43,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 48 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:43,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2025-03-04 15:19:43,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:43,753 INFO L124 PetriNetUnfolderBase]: 136/439 cut-off events. [2025-03-04 15:19:43,754 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2025-03-04 15:19:43,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 439 events. 136/439 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2488 event pairs, 18 based on Foata normal form. 6/413 useless extension candidates. Maximal degree in co-relation 1072. Up to 168 conditions per place. [2025-03-04 15:19:43,755 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 39 selfloop transitions, 10 changer transitions 4/68 dead transitions. [2025-03-04 15:19:43,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 379 flow [2025-03-04 15:19:43,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:19:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:19:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2025-03-04 15:19:43,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5503875968992248 [2025-03-04 15:19:43,756 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 211 flow. Second operand 6 states and 142 transitions. [2025-03-04 15:19:43,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 379 flow [2025-03-04 15:19:43,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 68 transitions, 365 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:19:43,769 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 209 flow [2025-03-04 15:19:43,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2025-03-04 15:19:43,770 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 16 predicate places. [2025-03-04 15:19:43,770 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 209 flow [2025-03-04 15:19:43,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:43,770 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:43,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:19:43,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:43,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:43,771 INFO L85 PathProgramCache]: Analyzing trace with hash 934695449, now seen corresponding path program 1 times [2025-03-04 15:19:43,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:43,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713613085] [2025-03-04 15:19:43,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:43,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:19:43,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:19:43,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:43,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:43,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:43,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:43,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713613085] [2025-03-04 15:19:43,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713613085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:43,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:43,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:19:43,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495523105] [2025-03-04 15:19:43,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:43,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:43,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:43,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:43,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:43,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2025-03-04 15:19:43,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:43,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2025-03-04 15:19:43,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:43,890 INFO L124 PetriNetUnfolderBase]: 137/433 cut-off events. [2025-03-04 15:19:43,891 INFO L125 PetriNetUnfolderBase]: For 509/513 co-relation queries the response was YES. [2025-03-04 15:19:43,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 433 events. 137/433 cut-off events. For 509/513 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2499 event pairs, 58 based on Foata normal form. 28/431 useless extension candidates. Maximal degree in co-relation 1078. Up to 144 conditions per place. [2025-03-04 15:19:43,892 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 40 selfloop transitions, 8 changer transitions 7/73 dead transitions. [2025-03-04 15:19:43,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 73 transitions, 437 flow [2025-03-04 15:19:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:19:43,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:19:43,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2025-03-04 15:19:43,893 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7348837209302326 [2025-03-04 15:19:43,893 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 209 flow. Second operand 5 states and 158 transitions. [2025-03-04 15:19:43,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 73 transitions, 437 flow [2025-03-04 15:19:43,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 73 transitions, 399 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-04 15:19:43,897 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 233 flow [2025-03-04 15:19:43,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=233, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2025-03-04 15:19:43,897 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2025-03-04 15:19:43,897 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 233 flow [2025-03-04 15:19:43,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:43,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:43,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:19:43,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:43,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:43,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1089212708, now seen corresponding path program 1 times [2025-03-04 15:19:43,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:43,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011912643] [2025-03-04 15:19:43,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:43,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:43,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:19:43,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:19:43,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:43,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:43,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:43,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011912643] [2025-03-04 15:19:43,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011912643] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:43,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:43,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:43,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319068464] [2025-03-04 15:19:43,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:43,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:43,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:43,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:43,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:43,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-04 15:19:43,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:43,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:43,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-04 15:19:43,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:44,023 INFO L124 PetriNetUnfolderBase]: 178/506 cut-off events. [2025-03-04 15:19:44,024 INFO L125 PetriNetUnfolderBase]: For 584/584 co-relation queries the response was YES. [2025-03-04 15:19:44,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 506 events. 178/506 cut-off events. For 584/584 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2841 event pairs, 104 based on Foata normal form. 6/498 useless extension candidates. Maximal degree in co-relation 1324. Up to 312 conditions per place. [2025-03-04 15:19:44,026 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 49 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2025-03-04 15:19:44,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 402 flow [2025-03-04 15:19:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:19:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:19:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2025-03-04 15:19:44,029 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.586046511627907 [2025-03-04 15:19:44,029 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 233 flow. Second operand 5 states and 126 transitions. [2025-03-04 15:19:44,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 402 flow [2025-03-04 15:19:44,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:19:44,031 INFO L231 Difference]: Finished difference. Result has 67 places, 51 transitions, 254 flow [2025-03-04 15:19:44,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=67, PETRI_TRANSITIONS=51} [2025-03-04 15:19:44,031 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2025-03-04 15:19:44,032 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 51 transitions, 254 flow [2025-03-04 15:19:44,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:44,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:44,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 15:19:44,032 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:44,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:44,033 INFO L85 PathProgramCache]: Analyzing trace with hash 594144561, now seen corresponding path program 1 times [2025-03-04 15:19:44,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:44,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151421667] [2025-03-04 15:19:44,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:44,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:44,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:19:44,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:19:44,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:44,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:44,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:44,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151421667] [2025-03-04 15:19:44,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151421667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:44,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:44,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:44,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395276801] [2025-03-04 15:19:44,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:44,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:44,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:44,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:44,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:44,077 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-04 15:19:44,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 51 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:44,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-04 15:19:44,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:44,172 INFO L124 PetriNetUnfolderBase]: 173/487 cut-off events. [2025-03-04 15:19:44,172 INFO L125 PetriNetUnfolderBase]: For 772/774 co-relation queries the response was YES. [2025-03-04 15:19:44,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 487 events. 173/487 cut-off events. For 772/774 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2783 event pairs, 91 based on Foata normal form. 6/483 useless extension candidates. Maximal degree in co-relation 1387. Up to 272 conditions per place. [2025-03-04 15:19:44,174 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 40 selfloop transitions, 5 changer transitions 10/69 dead transitions. [2025-03-04 15:19:44,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 430 flow [2025-03-04 15:19:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:19:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:19:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2025-03-04 15:19:44,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2025-03-04 15:19:44,175 INFO L175 Difference]: Start difference. First operand has 67 places, 51 transitions, 254 flow. Second operand 5 states and 128 transitions. [2025-03-04 15:19:44,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 430 flow [2025-03-04 15:19:44,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:19:44,178 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 232 flow [2025-03-04 15:19:44,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2025-03-04 15:19:44,179 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2025-03-04 15:19:44,180 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 232 flow [2025-03-04 15:19:44,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:44,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:44,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 15:19:44,180 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:44,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:44,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1239260234, now seen corresponding path program 1 times [2025-03-04 15:19:44,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:44,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137134184] [2025-03-04 15:19:44,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:44,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:44,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:19:44,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:19:44,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:44,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:44,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:44,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:44,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137134184] [2025-03-04 15:19:44,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137134184] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:44,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:44,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:44,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494008516] [2025-03-04 15:19:44,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:44,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:44,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:44,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:44,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:44,225 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-03-04 15:19:44,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:44,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-03-04 15:19:44,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:44,307 INFO L124 PetriNetUnfolderBase]: 167/455 cut-off events. [2025-03-04 15:19:44,307 INFO L125 PetriNetUnfolderBase]: For 567/567 co-relation queries the response was YES. [2025-03-04 15:19:44,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1318 conditions, 455 events. 167/455 cut-off events. For 567/567 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2407 event pairs, 46 based on Foata normal form. 20/470 useless extension candidates. Maximal degree in co-relation 1302. Up to 140 conditions per place. [2025-03-04 15:19:44,310 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 38 selfloop transitions, 8 changer transitions 2/60 dead transitions. [2025-03-04 15:19:44,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 373 flow [2025-03-04 15:19:44,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:19:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:19:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2025-03-04 15:19:44,311 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2025-03-04 15:19:44,311 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 232 flow. Second operand 4 states and 97 transitions. [2025-03-04 15:19:44,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 373 flow [2025-03-04 15:19:44,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 60 transitions, 347 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-03-04 15:19:44,315 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 216 flow [2025-03-04 15:19:44,316 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=62, PETRI_TRANSITIONS=46} [2025-03-04 15:19:44,317 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2025-03-04 15:19:44,317 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 216 flow [2025-03-04 15:19:44,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,317 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:44,317 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:44,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 15:19:44,317 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:44,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:44,318 INFO L85 PathProgramCache]: Analyzing trace with hash -237638269, now seen corresponding path program 1 times [2025-03-04 15:19:44,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:44,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957293790] [2025-03-04 15:19:44,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:44,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:44,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 15:19:44,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 15:19:44,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:44,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:44,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:44,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957293790] [2025-03-04 15:19:44,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957293790] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:44,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:44,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:19:44,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552664714] [2025-03-04 15:19:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:44,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:19:44,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:44,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:19:44,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:19:44,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2025-03-04 15:19:44,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:44,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2025-03-04 15:19:44,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:44,453 INFO L124 PetriNetUnfolderBase]: 135/405 cut-off events. [2025-03-04 15:19:44,453 INFO L125 PetriNetUnfolderBase]: For 452/452 co-relation queries the response was YES. [2025-03-04 15:19:44,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 405 events. 135/405 cut-off events. For 452/452 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2121 event pairs, 86 based on Foata normal form. 20/419 useless extension candidates. Maximal degree in co-relation 1094. Up to 241 conditions per place. [2025-03-04 15:19:44,455 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 25 selfloop transitions, 6 changer transitions 13/57 dead transitions. [2025-03-04 15:19:44,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 338 flow [2025-03-04 15:19:44,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:19:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:19:44,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2025-03-04 15:19:44,456 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2025-03-04 15:19:44,456 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 216 flow. Second operand 4 states and 96 transitions. [2025-03-04 15:19:44,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 338 flow [2025-03-04 15:19:44,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 322 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:19:44,459 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 176 flow [2025-03-04 15:19:44,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2025-03-04 15:19:44,460 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2025-03-04 15:19:44,460 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 176 flow [2025-03-04 15:19:44,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:44,460 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:44,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 15:19:44,460 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:44,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1603243139, now seen corresponding path program 1 times [2025-03-04 15:19:44,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:44,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515485936] [2025-03-04 15:19:44,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:44,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:44,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 15:19:44,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 15:19:44,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:44,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:44,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:44,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515485936] [2025-03-04 15:19:44,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515485936] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:44,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:44,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:19:44,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534173139] [2025-03-04 15:19:44,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:44,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:19:44,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:44,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:19:44,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:19:44,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-04 15:19:44,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:44,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-04 15:19:44,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:44,632 INFO L124 PetriNetUnfolderBase]: 79/237 cut-off events. [2025-03-04 15:19:44,633 INFO L125 PetriNetUnfolderBase]: For 344/351 co-relation queries the response was YES. [2025-03-04 15:19:44,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 237 events. 79/237 cut-off events. For 344/351 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1102 event pairs, 24 based on Foata normal form. 13/245 useless extension candidates. Maximal degree in co-relation 654. Up to 68 conditions per place. [2025-03-04 15:19:44,634 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 39 selfloop transitions, 5 changer transitions 1/57 dead transitions. [2025-03-04 15:19:44,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 326 flow [2025-03-04 15:19:44,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:19:44,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:19:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2025-03-04 15:19:44,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6124031007751938 [2025-03-04 15:19:44,635 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 176 flow. Second operand 6 states and 158 transitions. [2025-03-04 15:19:44,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 326 flow [2025-03-04 15:19:44,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 299 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-03-04 15:19:44,637 INFO L231 Difference]: Finished difference. Result has 55 places, 39 transitions, 153 flow [2025-03-04 15:19:44,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=153, PETRI_PLACES=55, PETRI_TRANSITIONS=39} [2025-03-04 15:19:44,637 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2025-03-04 15:19:44,637 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 153 flow [2025-03-04 15:19:44,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:44,638 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:44,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 15:19:44,638 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:44,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1894330270, now seen corresponding path program 1 times [2025-03-04 15:19:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736351255] [2025-03-04 15:19:44,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:44,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:44,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 15:19:44,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 15:19:44,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:44,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:44,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:44,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736351255] [2025-03-04 15:19:44,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736351255] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:44,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:44,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:19:44,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107992629] [2025-03-04 15:19:44,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:44,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:19:44,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:44,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:19:44,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:19:44,705 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-04 15:19:44,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 39 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:44,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-04 15:19:44,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:44,806 INFO L124 PetriNetUnfolderBase]: 72/221 cut-off events. [2025-03-04 15:19:44,806 INFO L125 PetriNetUnfolderBase]: For 260/267 co-relation queries the response was YES. [2025-03-04 15:19:44,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 221 events. 72/221 cut-off events. For 260/267 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1012 event pairs, 22 based on Foata normal form. 14/231 useless extension candidates. Maximal degree in co-relation 565. Up to 66 conditions per place. [2025-03-04 15:19:44,808 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 10 changer transitions 1/57 dead transitions. [2025-03-04 15:19:44,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 310 flow [2025-03-04 15:19:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 15:19:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 15:19:44,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2025-03-04 15:19:44,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5784883720930233 [2025-03-04 15:19:44,809 INFO L175 Difference]: Start difference. First operand has 55 places, 39 transitions, 153 flow. Second operand 8 states and 199 transitions. [2025-03-04 15:19:44,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 310 flow [2025-03-04 15:19:44,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 296 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-04 15:19:44,811 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 171 flow [2025-03-04 15:19:44,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=171, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2025-03-04 15:19:44,811 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-04 15:19:44,811 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 171 flow [2025-03-04 15:19:44,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:44,812 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:44,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 15:19:44,812 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:44,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:44,812 INFO L85 PathProgramCache]: Analyzing trace with hash -796202680, now seen corresponding path program 1 times [2025-03-04 15:19:44,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:44,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666162393] [2025-03-04 15:19:44,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:44,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:44,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 15:19:44,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 15:19:44,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:44,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:44,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:44,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:44,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666162393] [2025-03-04 15:19:44,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666162393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:44,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:44,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:19:44,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153401492] [2025-03-04 15:19:44,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:44,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:19:44,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:44,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:19:44,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:19:44,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-04 15:19:44,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:44,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-04 15:19:44,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:44,985 INFO L124 PetriNetUnfolderBase]: 68/212 cut-off events. [2025-03-04 15:19:44,985 INFO L125 PetriNetUnfolderBase]: For 273/282 co-relation queries the response was YES. [2025-03-04 15:19:44,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 212 events. 68/212 cut-off events. For 273/282 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 966 event pairs, 15 based on Foata normal form. 11/221 useless extension candidates. Maximal degree in co-relation 539. Up to 45 conditions per place. [2025-03-04 15:19:44,986 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 20 selfloop transitions, 7 changer transitions 23/62 dead transitions. [2025-03-04 15:19:44,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 348 flow [2025-03-04 15:19:44,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 15:19:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 15:19:44,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 221 transitions. [2025-03-04 15:19:44,987 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5710594315245479 [2025-03-04 15:19:44,987 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 171 flow. Second operand 9 states and 221 transitions. [2025-03-04 15:19:44,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 348 flow [2025-03-04 15:19:44,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 328 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-04 15:19:44,989 INFO L231 Difference]: Finished difference. Result has 59 places, 35 transitions, 146 flow [2025-03-04 15:19:44,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=146, PETRI_PLACES=59, PETRI_TRANSITIONS=35} [2025-03-04 15:19:44,989 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2025-03-04 15:19:44,989 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 35 transitions, 146 flow [2025-03-04 15:19:44,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:44,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:19:44,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:44,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 15:19:44,989 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-04 15:19:44,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:19:44,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1405303618, now seen corresponding path program 1 times [2025-03-04 15:19:44,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:19:44,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718257820] [2025-03-04 15:19:44,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:19:44,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:19:44,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 15:19:45,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 15:19:45,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:19:45,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:19:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:19:45,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:19:45,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718257820] [2025-03-04 15:19:45,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718257820] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:19:45,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:19:45,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:19:45,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430883489] [2025-03-04 15:19:45,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:19:45,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:19:45,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:19:45,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:19:45,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:19:45,068 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-04 15:19:45,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 35 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:45,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:19:45,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-04 15:19:45,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:19:45,132 INFO L124 PetriNetUnfolderBase]: 27/108 cut-off events. [2025-03-04 15:19:45,132 INFO L125 PetriNetUnfolderBase]: For 127/131 co-relation queries the response was YES. [2025-03-04 15:19:45,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 108 events. 27/108 cut-off events. For 127/131 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 348 event pairs, 7 based on Foata normal form. 11/118 useless extension candidates. Maximal degree in co-relation 251. Up to 24 conditions per place. [2025-03-04 15:19:45,133 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2025-03-04 15:19:45,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 218 flow [2025-03-04 15:19:45,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 15:19:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 15:19:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2025-03-04 15:19:45,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5377906976744186 [2025-03-04 15:19:45,134 INFO L175 Difference]: Start difference. First operand has 59 places, 35 transitions, 146 flow. Second operand 8 states and 185 transitions. [2025-03-04 15:19:45,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 218 flow [2025-03-04 15:19:45,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-04 15:19:45,135 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2025-03-04 15:19:45,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2025-03-04 15:19:45,135 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2025-03-04 15:19:45,135 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2025-03-04 15:19:45,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:19:45,138 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-03-04 15:19:45,139 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-03-04 15:19:45,140 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-03-04 15:19:45,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 15:19:45,140 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:19:45,144 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:19:45,144 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:19:45,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:19:45 BasicIcfg [2025-03-04 15:19:45,150 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:19:45,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:19:45,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:19:45,151 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:19:45,152 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:19:42" (3/4) ... [2025-03-04 15:19:45,153 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:19:45,155 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-04 15:19:45,158 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-04 15:19:45,159 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-04 15:19:45,159 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 15:19:45,159 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 15:19:45,215 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:19:45,216 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:19:45,216 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:19:45,216 INFO L158 Benchmark]: Toolchain (without parser) took 3837.01ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 111.9MB in the beginning and 98.2MB in the end (delta: 13.7MB). Peak memory consumption was 166.3MB. Max. memory is 16.1GB. [2025-03-04 15:19:45,216 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:19:45,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.77ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 85.0MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 15:19:45,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.08ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 82.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:19:45,217 INFO L158 Benchmark]: Boogie Preprocessor took 21.19ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:19:45,217 INFO L158 Benchmark]: IcfgBuilder took 324.87ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 62.8MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 15:19:45,217 INFO L158 Benchmark]: TraceAbstraction took 2979.04ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 61.7MB in the beginning and 103.9MB in the end (delta: -42.2MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. [2025-03-04 15:19:45,218 INFO L158 Benchmark]: Witness Printer took 64.96ms. Allocated memory is still 293.6MB. Free memory was 103.9MB in the beginning and 98.2MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:19:45,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.77ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 85.0MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.08ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 82.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.19ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 324.87ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 62.8MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2979.04ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 61.7MB in the beginning and 103.9MB in the end (delta: -42.2MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. * Witness Printer took 64.96ms. Allocated memory is still 293.6MB. Free memory was 103.9MB in the beginning and 98.2MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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 3 procedures, 51 locations, 13 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: 2.9s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 670 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 268 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1416 IncrementalHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 110 mSDtfsCounter, 1416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=8, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 15:19:45,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE