./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 e2fb8bed 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-?-e2fb8be-m [2025-03-09 06:33:05,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:33:05,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:33:05,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:33:05,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:33:05,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:33:05,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:33:05,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:33:05,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:33:05,924 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:33:05,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:33:05,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:33:05,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:33:05,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:33:05,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:33:05,926 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:33:05,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:05,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:33:05,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:33:05,927 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 [2025-03-09 06:33:06,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:33:06,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:33:06,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:33:06,135 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:33:06,136 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:33:06,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-09 06:33:07,304 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71c6f1724/3a30ceabeae1499cb55b197ca9414d64/FLAG7ab50bd0a [2025-03-09 06:33:07,597 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:33:07,600 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-09 06:33:07,612 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71c6f1724/3a30ceabeae1499cb55b197ca9414d64/FLAG7ab50bd0a [2025-03-09 06:33:07,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71c6f1724/3a30ceabeae1499cb55b197ca9414d64 [2025-03-09 06:33:07,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:33:07,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:33:07,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:07,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:33:07,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:33:07,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:07" (1/1) ... [2025-03-09 06:33:07,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b00237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:07, skipping insertion in model container [2025-03-09 06:33:07,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:07" (1/1) ... [2025-03-09 06:33:07,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:33:07,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:07,917 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:33:07,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:08,001 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:33:08,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08 WrapperNode [2025-03-09 06:33:08,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:08,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:08,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:33:08,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:33:08,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,028 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2025-03-09 06:33:08,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:08,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:33:08,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:33:08,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:33:08,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,046 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]. [2025-03-09 06:33:08,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,049 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:33:08,052 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:33:08,052 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:33:08,053 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:33:08,053 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (1/1) ... [2025-03-09 06:33:08,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:08,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:08,078 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) [2025-03-09 06:33:08,080 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 [2025-03-09 06:33:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:33:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:33:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:33:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-09 06:33:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-09 06:33:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:33:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:33:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:33:08,096 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:33:08,181 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:33:08,182 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:33:08,297 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:33:08,298 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:33:08,355 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:33:08,356 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:33:08,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:08 BoogieIcfgContainer [2025-03-09 06:33:08,356 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:33:08,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:33:08,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:33:08,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:33:08,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:33:07" (1/3) ... [2025-03-09 06:33:08,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316b19b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:08, skipping insertion in model container [2025-03-09 06:33:08,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:08" (2/3) ... [2025-03-09 06:33:08,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316b19b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:08, skipping insertion in model container [2025-03-09 06:33:08,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:08" (3/3) ... [2025-03-09 06:33:08,362 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2025-03-09 06:33:08,371 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:33:08,373 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. [2025-03-09 06:33:08,373 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:33:08,403 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 06:33:08,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 90 flow [2025-03-09 06:33:08,452 INFO L124 PetriNetUnfolderBase]: 4/42 cut-off events. [2025-03-09 06:33:08,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:08,458 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. [2025-03-09 06:33:08,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 90 flow [2025-03-09 06:33:08,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 42 transitions, 87 flow [2025-03-09 06:33:08,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:33:08,480 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;@1420727c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:33:08,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-09 06:33:08,484 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:33:08,485 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2025-03-09 06:33:08,485 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:08,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:08,485 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:33:08,485 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)] === [2025-03-09 06:33:08,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1442007745, now seen corresponding path program 1 times [2025-03-09 06:33:08,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:08,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417763304] [2025-03-09 06:33:08,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:08,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:08,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:33:08,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:33:08,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:08,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:08,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417763304] [2025-03-09 06:33:08,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417763304] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:08,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:08,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:08,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782023554] [2025-03-09 06:33:08,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:08,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:08,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:08,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:08,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:08,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2025-03-09 06:33:08,753 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) [2025-03-09 06:33:08,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:08,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2025-03-09 06:33:08,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:08,886 INFO L124 PetriNetUnfolderBase]: 97/268 cut-off events. [2025-03-09 06:33:08,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:08,891 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. [2025-03-09 06:33:08,892 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 35 selfloop transitions, 6 changer transitions 12/74 dead transitions. [2025-03-09 06:33:08,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 74 transitions, 257 flow [2025-03-09 06:33:08,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:08,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2025-03-09 06:33:08,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7767441860465116 [2025-03-09 06:33:08,902 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 87 flow. Second operand 5 states and 167 transitions. [2025-03-09 06:33:08,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 74 transitions, 257 flow [2025-03-09 06:33:08,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 74 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:33:08,907 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 128 flow [2025-03-09 06:33:08,909 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} [2025-03-09 06:33:08,911 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2025-03-09 06:33:08,911 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 128 flow [2025-03-09 06:33:08,911 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) [2025-03-09 06:33:08,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:08,911 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:08,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:33:08,912 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)] === [2025-03-09 06:33:08,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1735400998, now seen corresponding path program 1 times [2025-03-09 06:33:08,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:08,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722434507] [2025-03-09 06:33:08,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:08,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:08,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:33:08,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:33:08,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:08,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:08,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:08,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:08,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722434507] [2025-03-09 06:33:08,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722434507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:08,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:08,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:08,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599883220] [2025-03-09 06:33:08,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:08,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:08,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:08,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:08,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:08,978 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-09 06:33:08,978 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) [2025-03-09 06:33:08,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:08,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-09 06:33:08,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:09,088 INFO L124 PetriNetUnfolderBase]: 171/492 cut-off events. [2025-03-09 06:33:09,089 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2025-03-09 06:33:09,090 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. [2025-03-09 06:33:09,091 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 51 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2025-03-09 06:33:09,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 345 flow [2025-03-09 06:33:09,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:09,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2025-03-09 06:33:09,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6372093023255814 [2025-03-09 06:33:09,093 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 128 flow. Second operand 5 states and 137 transitions. [2025-03-09 06:33:09,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 345 flow [2025-03-09 06:33:09,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 345 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:33:09,096 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 195 flow [2025-03-09 06:33:09,096 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} [2025-03-09 06:33:09,097 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2025-03-09 06:33:09,097 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 195 flow [2025-03-09 06:33:09,097 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) [2025-03-09 06:33:09,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:09,097 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:09,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:33:09,097 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)] === [2025-03-09 06:33:09,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:09,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2037163544, now seen corresponding path program 1 times [2025-03-09 06:33:09,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:09,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314467779] [2025-03-09 06:33:09,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:09,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:09,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:33:09,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:33:09,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:09,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:09,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:09,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314467779] [2025-03-09 06:33:09,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314467779] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:09,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:09,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:09,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537870567] [2025-03-09 06:33:09,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:09,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:09,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:09,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:09,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:09,187 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-09 06:33:09,188 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) [2025-03-09 06:33:09,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:09,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-09 06:33:09,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:09,265 INFO L124 PetriNetUnfolderBase]: 171/495 cut-off events. [2025-03-09 06:33:09,265 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2025-03-09 06:33:09,267 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. [2025-03-09 06:33:09,268 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 9 changer transitions 6/65 dead transitions. [2025-03-09 06:33:09,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 336 flow [2025-03-09 06:33:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:09,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:09,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-03-09 06:33:09,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2025-03-09 06:33:09,269 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 195 flow. Second operand 4 states and 104 transitions. [2025-03-09 06:33:09,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 336 flow [2025-03-09 06:33:09,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 336 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:33:09,272 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 209 flow [2025-03-09 06:33:09,272 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} [2025-03-09 06:33:09,273 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-09 06:33:09,274 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 209 flow [2025-03-09 06:33:09,274 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) [2025-03-09 06:33:09,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:09,274 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:09,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:33:09,274 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)] === [2025-03-09 06:33:09,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:09,275 INFO L85 PathProgramCache]: Analyzing trace with hash -2037143790, now seen corresponding path program 1 times [2025-03-09 06:33:09,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:09,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900471811] [2025-03-09 06:33:09,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:09,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:09,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:33:09,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:33:09,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:09,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:09,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:09,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900471811] [2025-03-09 06:33:09,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900471811] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:09,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:09,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:09,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664500465] [2025-03-09 06:33:09,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:09,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:09,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:09,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:09,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:09,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-09 06:33:09,339 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) [2025-03-09 06:33:09,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:09,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-09 06:33:09,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:09,413 INFO L124 PetriNetUnfolderBase]: 161/465 cut-off events. [2025-03-09 06:33:09,414 INFO L125 PetriNetUnfolderBase]: For 435/437 co-relation queries the response was YES. [2025-03-09 06:33:09,414 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. [2025-03-09 06:33:09,416 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 40 selfloop transitions, 6 changer transitions 2/64 dead transitions. [2025-03-09 06:33:09,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 348 flow [2025-03-09 06:33:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-03-09 06:33:09,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2025-03-09 06:33:09,417 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 209 flow. Second operand 4 states and 106 transitions. [2025-03-09 06:33:09,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 348 flow [2025-03-09 06:33:09,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 330 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:33:09,419 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 199 flow [2025-03-09 06:33:09,420 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} [2025-03-09 06:33:09,420 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-09 06:33:09,420 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 199 flow [2025-03-09 06:33:09,420 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) [2025-03-09 06:33:09,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:09,420 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:09,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:33:09,421 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)] === [2025-03-09 06:33:09,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:09,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1272439696, now seen corresponding path program 1 times [2025-03-09 06:33:09,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:09,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545540665] [2025-03-09 06:33:09,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:09,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:09,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:33:09,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:33:09,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:09,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:09,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:09,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545540665] [2025-03-09 06:33:09,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545540665] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:09,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:09,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:09,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409811476] [2025-03-09 06:33:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:09,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:33:09,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:09,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:33:09,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:33:09,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-09 06:33:09,497 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) [2025-03-09 06:33:09,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:09,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-09 06:33:09,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:09,575 INFO L124 PetriNetUnfolderBase]: 149/441 cut-off events. [2025-03-09 06:33:09,575 INFO L125 PetriNetUnfolderBase]: For 392/396 co-relation queries the response was YES. [2025-03-09 06:33:09,576 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. [2025-03-09 06:33:09,577 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 34 selfloop transitions, 12 changer transitions 9/71 dead transitions. [2025-03-09 06:33:09,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 379 flow [2025-03-09 06:33:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-03-09 06:33:09,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5906976744186047 [2025-03-09 06:33:09,581 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 199 flow. Second operand 5 states and 127 transitions. [2025-03-09 06:33:09,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 379 flow [2025-03-09 06:33:09,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 71 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:33:09,587 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 211 flow [2025-03-09 06:33:09,587 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} [2025-03-09 06:33:09,587 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-09 06:33:09,587 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 211 flow [2025-03-09 06:33:09,588 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) [2025-03-09 06:33:09,588 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:09,588 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:09,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:33:09,588 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)] === [2025-03-09 06:33:09,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash 790925085, now seen corresponding path program 1 times [2025-03-09 06:33:09,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:09,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731417581] [2025-03-09 06:33:09,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:09,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:09,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:33:09,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:33:09,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:09,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:09,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:09,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:09,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731417581] [2025-03-09 06:33:09,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731417581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:09,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:09,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:09,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540246027] [2025-03-09 06:33:09,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:09,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:33:09,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:09,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:33:09,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:33:09,678 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2025-03-09 06:33:09,678 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) [2025-03-09 06:33:09,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:09,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2025-03-09 06:33:09,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:09,790 INFO L124 PetriNetUnfolderBase]: 136/439 cut-off events. [2025-03-09 06:33:09,790 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2025-03-09 06:33:09,791 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. [2025-03-09 06:33:09,793 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 39 selfloop transitions, 10 changer transitions 4/68 dead transitions. [2025-03-09 06:33:09,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 379 flow [2025-03-09 06:33:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:33:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:33:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2025-03-09 06:33:09,794 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5503875968992248 [2025-03-09 06:33:09,794 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 211 flow. Second operand 6 states and 142 transitions. [2025-03-09 06:33:09,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 379 flow [2025-03-09 06:33:09,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 68 transitions, 365 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:33:09,797 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 209 flow [2025-03-09 06:33:09,797 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} [2025-03-09 06:33:09,797 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 16 predicate places. [2025-03-09 06:33:09,798 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 209 flow [2025-03-09 06:33:09,798 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) [2025-03-09 06:33:09,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:09,798 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:09,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:33:09,799 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)] === [2025-03-09 06:33:09,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:09,799 INFO L85 PathProgramCache]: Analyzing trace with hash 934695449, now seen corresponding path program 1 times [2025-03-09 06:33:09,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:09,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243681044] [2025-03-09 06:33:09,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:09,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:09,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:33:09,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:33:09,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:09,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:09,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:09,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243681044] [2025-03-09 06:33:09,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243681044] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:09,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:09,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:09,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478125555] [2025-03-09 06:33:09,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:09,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:09,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:09,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:09,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:09,845 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2025-03-09 06:33:09,845 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) [2025-03-09 06:33:09,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:09,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2025-03-09 06:33:09,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:09,926 INFO L124 PetriNetUnfolderBase]: 137/433 cut-off events. [2025-03-09 06:33:09,926 INFO L125 PetriNetUnfolderBase]: For 509/513 co-relation queries the response was YES. [2025-03-09 06:33:09,927 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. [2025-03-09 06:33:09,928 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 40 selfloop transitions, 8 changer transitions 7/73 dead transitions. [2025-03-09 06:33:09,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 73 transitions, 437 flow [2025-03-09 06:33:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:09,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:09,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2025-03-09 06:33:09,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7348837209302326 [2025-03-09 06:33:09,930 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 209 flow. Second operand 5 states and 158 transitions. [2025-03-09 06:33:09,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 73 transitions, 437 flow [2025-03-09 06:33:09,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 73 transitions, 399 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-09 06:33:09,932 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 233 flow [2025-03-09 06:33:09,933 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} [2025-03-09 06:33:09,933 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2025-03-09 06:33:09,934 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 233 flow [2025-03-09 06:33:09,934 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) [2025-03-09 06:33:09,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:09,934 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:09,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:33:09,935 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)] === [2025-03-09 06:33:09,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:09,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1089212708, now seen corresponding path program 1 times [2025-03-09 06:33:09,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:09,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461517792] [2025-03-09 06:33:09,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:09,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:09,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:33:09,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:33:09,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:09,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:09,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:09,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:09,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461517792] [2025-03-09 06:33:09,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461517792] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:09,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:09,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:09,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564874818] [2025-03-09 06:33:09,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:09,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:09,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:09,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:09,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:09,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-09 06:33:09,993 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) [2025-03-09 06:33:09,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:09,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-09 06:33:09,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,073 INFO L124 PetriNetUnfolderBase]: 178/506 cut-off events. [2025-03-09 06:33:10,073 INFO L125 PetriNetUnfolderBase]: For 584/584 co-relation queries the response was YES. [2025-03-09 06:33:10,074 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. [2025-03-09 06:33:10,075 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 49 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2025-03-09 06:33:10,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 402 flow [2025-03-09 06:33:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2025-03-09 06:33:10,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.586046511627907 [2025-03-09 06:33:10,076 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 233 flow. Second operand 5 states and 126 transitions. [2025-03-09 06:33:10,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 402 flow [2025-03-09 06:33:10,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:33:10,081 INFO L231 Difference]: Finished difference. Result has 67 places, 51 transitions, 254 flow [2025-03-09 06:33:10,081 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} [2025-03-09 06:33:10,081 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2025-03-09 06:33:10,081 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 51 transitions, 254 flow [2025-03-09 06:33:10,081 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) [2025-03-09 06:33:10,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,081 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:33:10,082 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)] === [2025-03-09 06:33:10,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,082 INFO L85 PathProgramCache]: Analyzing trace with hash 594144561, now seen corresponding path program 1 times [2025-03-09 06:33:10,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724059124] [2025-03-09 06:33:10,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:33:10,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:33:10,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724059124] [2025-03-09 06:33:10,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724059124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569004209] [2025-03-09 06:33:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:10,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:10,136 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-09 06:33:10,137 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) [2025-03-09 06:33:10,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-09 06:33:10,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,237 INFO L124 PetriNetUnfolderBase]: 173/487 cut-off events. [2025-03-09 06:33:10,237 INFO L125 PetriNetUnfolderBase]: For 772/774 co-relation queries the response was YES. [2025-03-09 06:33:10,238 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. [2025-03-09 06:33:10,240 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 40 selfloop transitions, 5 changer transitions 10/69 dead transitions. [2025-03-09 06:33:10,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 430 flow [2025-03-09 06:33:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2025-03-09 06:33:10,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2025-03-09 06:33:10,241 INFO L175 Difference]: Start difference. First operand has 67 places, 51 transitions, 254 flow. Second operand 5 states and 128 transitions. [2025-03-09 06:33:10,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 430 flow [2025-03-09 06:33:10,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:33:10,245 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 232 flow [2025-03-09 06:33:10,245 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} [2025-03-09 06:33:10,245 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2025-03-09 06:33:10,245 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 232 flow [2025-03-09 06:33:10,246 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) [2025-03-09 06:33:10,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,246 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:33:10,246 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)] === [2025-03-09 06:33:10,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1239260234, now seen corresponding path program 1 times [2025-03-09 06:33:10,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266096918] [2025-03-09 06:33:10,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:33:10,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:33:10,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266096918] [2025-03-09 06:33:10,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266096918] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:10,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323857741] [2025-03-09 06:33:10,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:10,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:10,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:10,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-03-09 06:33:10,287 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) [2025-03-09 06:33:10,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-03-09 06:33:10,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,370 INFO L124 PetriNetUnfolderBase]: 167/455 cut-off events. [2025-03-09 06:33:10,370 INFO L125 PetriNetUnfolderBase]: For 567/567 co-relation queries the response was YES. [2025-03-09 06:33:10,371 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. [2025-03-09 06:33:10,372 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 38 selfloop transitions, 8 changer transitions 2/60 dead transitions. [2025-03-09 06:33:10,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 373 flow [2025-03-09 06:33:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2025-03-09 06:33:10,373 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2025-03-09 06:33:10,373 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 232 flow. Second operand 4 states and 97 transitions. [2025-03-09 06:33:10,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 373 flow [2025-03-09 06:33:10,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 60 transitions, 347 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-03-09 06:33:10,376 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 216 flow [2025-03-09 06:33:10,376 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} [2025-03-09 06:33:10,377 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2025-03-09 06:33:10,377 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 216 flow [2025-03-09 06:33:10,377 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) [2025-03-09 06:33:10,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,377 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:33:10,377 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)] === [2025-03-09 06:33:10,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,377 INFO L85 PathProgramCache]: Analyzing trace with hash -237638269, now seen corresponding path program 1 times [2025-03-09 06:33:10,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689937318] [2025-03-09 06:33:10,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:33:10,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:33:10,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689937318] [2025-03-09 06:33:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689937318] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:10,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632383293] [2025-03-09 06:33:10,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:10,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:10,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2025-03-09 06:33:10,422 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) [2025-03-09 06:33:10,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2025-03-09 06:33:10,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,489 INFO L124 PetriNetUnfolderBase]: 135/405 cut-off events. [2025-03-09 06:33:10,490 INFO L125 PetriNetUnfolderBase]: For 452/452 co-relation queries the response was YES. [2025-03-09 06:33:10,490 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. [2025-03-09 06:33:10,491 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 25 selfloop transitions, 6 changer transitions 13/57 dead transitions. [2025-03-09 06:33:10,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 338 flow [2025-03-09 06:33:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2025-03-09 06:33:10,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2025-03-09 06:33:10,492 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 216 flow. Second operand 4 states and 96 transitions. [2025-03-09 06:33:10,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 338 flow [2025-03-09 06:33:10,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 322 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:33:10,494 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 176 flow [2025-03-09 06:33:10,494 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} [2025-03-09 06:33:10,494 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2025-03-09 06:33:10,494 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 176 flow [2025-03-09 06:33:10,495 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) [2025-03-09 06:33:10,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,495 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:33:10,495 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)] === [2025-03-09 06:33:10,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1603243139, now seen corresponding path program 1 times [2025-03-09 06:33:10,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224849940] [2025-03-09 06:33:10,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:33:10,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:33:10,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224849940] [2025-03-09 06:33:10,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224849940] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:10,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704900895] [2025-03-09 06:33:10,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:10,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:10,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:33:10,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-09 06:33:10,564 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) [2025-03-09 06:33:10,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-09 06:33:10,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,652 INFO L124 PetriNetUnfolderBase]: 79/237 cut-off events. [2025-03-09 06:33:10,653 INFO L125 PetriNetUnfolderBase]: For 344/351 co-relation queries the response was YES. [2025-03-09 06:33:10,653 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. [2025-03-09 06:33:10,654 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 39 selfloop transitions, 5 changer transitions 1/57 dead transitions. [2025-03-09 06:33:10,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 326 flow [2025-03-09 06:33:10,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:33:10,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:33:10,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2025-03-09 06:33:10,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6124031007751938 [2025-03-09 06:33:10,655 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 176 flow. Second operand 6 states and 158 transitions. [2025-03-09 06:33:10,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 326 flow [2025-03-09 06:33:10,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 299 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-03-09 06:33:10,656 INFO L231 Difference]: Finished difference. Result has 55 places, 39 transitions, 153 flow [2025-03-09 06:33:10,656 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} [2025-03-09 06:33:10,657 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2025-03-09 06:33:10,657 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 153 flow [2025-03-09 06:33:10,657 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) [2025-03-09 06:33:10,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:33:10,657 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)] === [2025-03-09 06:33:10,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1894330270, now seen corresponding path program 1 times [2025-03-09 06:33:10,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723146188] [2025-03-09 06:33:10,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:33:10,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:33:10,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723146188] [2025-03-09 06:33:10,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723146188] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:10,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507203227] [2025-03-09 06:33:10,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:10,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:10,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:33:10,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-09 06:33:10,731 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) [2025-03-09 06:33:10,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-09 06:33:10,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,822 INFO L124 PetriNetUnfolderBase]: 72/221 cut-off events. [2025-03-09 06:33:10,822 INFO L125 PetriNetUnfolderBase]: For 260/267 co-relation queries the response was YES. [2025-03-09 06:33:10,823 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. [2025-03-09 06:33:10,823 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 10 changer transitions 1/57 dead transitions. [2025-03-09 06:33:10,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 310 flow [2025-03-09 06:33:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 06:33:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 06:33:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2025-03-09 06:33:10,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5784883720930233 [2025-03-09 06:33:10,824 INFO L175 Difference]: Start difference. First operand has 55 places, 39 transitions, 153 flow. Second operand 8 states and 199 transitions. [2025-03-09 06:33:10,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 310 flow [2025-03-09 06:33:10,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 296 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-09 06:33:10,827 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 171 flow [2025-03-09 06:33:10,827 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} [2025-03-09 06:33:10,828 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-09 06:33:10,828 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 171 flow [2025-03-09 06:33:10,828 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) [2025-03-09 06:33:10,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,828 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:33:10,829 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)] === [2025-03-09 06:33:10,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,829 INFO L85 PathProgramCache]: Analyzing trace with hash -796202680, now seen corresponding path program 1 times [2025-03-09 06:33:10,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599433656] [2025-03-09 06:33:10,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:33:10,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:33:10,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599433656] [2025-03-09 06:33:10,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599433656] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:10,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319718613] [2025-03-09 06:33:10,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:10,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:10,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:33:10,907 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-09 06:33:10,908 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) [2025-03-09 06:33:10,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-09 06:33:10,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,993 INFO L124 PetriNetUnfolderBase]: 68/212 cut-off events. [2025-03-09 06:33:10,993 INFO L125 PetriNetUnfolderBase]: For 273/282 co-relation queries the response was YES. [2025-03-09 06:33:10,994 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. [2025-03-09 06:33:10,994 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 20 selfloop transitions, 7 changer transitions 23/62 dead transitions. [2025-03-09 06:33:10,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 348 flow [2025-03-09 06:33:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:33:10,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 06:33:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 221 transitions. [2025-03-09 06:33:10,997 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5710594315245479 [2025-03-09 06:33:10,997 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 171 flow. Second operand 9 states and 221 transitions. [2025-03-09 06:33:10,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 348 flow [2025-03-09 06:33:10,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 328 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-09 06:33:10,999 INFO L231 Difference]: Finished difference. Result has 59 places, 35 transitions, 146 flow [2025-03-09 06:33:10,999 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} [2025-03-09 06:33:10,999 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2025-03-09 06:33:10,999 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 35 transitions, 146 flow [2025-03-09 06:33:11,000 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) [2025-03-09 06:33:11,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:11,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:11,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 06:33:11,000 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)] === [2025-03-09 06:33:11,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:11,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1405303618, now seen corresponding path program 1 times [2025-03-09 06:33:11,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:11,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587631119] [2025-03-09 06:33:11,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:11,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:11,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:33:11,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:33:11,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:11,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:11,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:11,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587631119] [2025-03-09 06:33:11,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587631119] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:11,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:11,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:33:11,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971890171] [2025-03-09 06:33:11,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:11,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:33:11,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:11,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:33:11,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:33:11,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-09 06:33:11,075 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) [2025-03-09 06:33:11,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:11,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-09 06:33:11,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:11,141 INFO L124 PetriNetUnfolderBase]: 27/108 cut-off events. [2025-03-09 06:33:11,142 INFO L125 PetriNetUnfolderBase]: For 127/131 co-relation queries the response was YES. [2025-03-09 06:33:11,142 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. [2025-03-09 06:33:11,142 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2025-03-09 06:33:11,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 218 flow [2025-03-09 06:33:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 06:33:11,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 06:33:11,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2025-03-09 06:33:11,143 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5377906976744186 [2025-03-09 06:33:11,143 INFO L175 Difference]: Start difference. First operand has 59 places, 35 transitions, 146 flow. Second operand 8 states and 185 transitions. [2025-03-09 06:33:11,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 218 flow [2025-03-09 06:33:11,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-09 06:33:11,144 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2025-03-09 06:33:11,144 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} [2025-03-09 06:33:11,144 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2025-03-09 06:33:11,144 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2025-03-09 06:33:11,145 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) [2025-03-09 06:33:11,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-03-09 06:33:11,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-03-09 06:33:11,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 06:33:11,148 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:11,151 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:33:11,151 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:33:11,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:33:11 BasicIcfg [2025-03-09 06:33:11,154 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:33:11,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:33:11,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:33:11,155 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:33:11,155 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:08" (3/4) ... [2025-03-09 06:33:11,156 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:33:11,159 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-09 06:33:11,162 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-09 06:33:11,162 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-09 06:33:11,162 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-09 06:33:11,163 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:33:11,213 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:33:11,214 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:33:11,214 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:33:11,215 INFO L158 Benchmark]: Toolchain (without parser) took 3582.05ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 109.6MB in the beginning and 243.4MB in the end (delta: -133.7MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2025-03-09 06:33:11,215 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:11,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.92ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 82.0MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 06:33:11,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.17ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:33:11,216 INFO L158 Benchmark]: Boogie Preprocessor took 22.95ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:11,217 INFO L158 Benchmark]: IcfgBuilder took 303.87ms. Allocated memory is still 142.6MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:33:11,217 INFO L158 Benchmark]: TraceAbstraction took 2796.48ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 59.0MB in the beginning and 250.4MB in the end (delta: -191.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:11,217 INFO L158 Benchmark]: Witness Printer took 59.26ms. Allocated memory is still 285.2MB. Free memory was 250.4MB in the beginning and 243.4MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:33:11,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.92ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 82.0MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.17ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.95ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 303.87ms. Allocated memory is still 142.6MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2796.48ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 59.0MB in the beginning and 250.4MB in the end (delta: -191.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.26ms. Allocated memory is still 285.2MB. Free memory was 250.4MB in the beginning and 243.4MB in the end (delta: 7.0MB). 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, 53 edges, 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: 2.7s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, 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, 0.7s 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! [2025-03-09 06:33:11,234 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