./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-?-8fc3dc6-m [2025-03-17 19:35:56,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:35:56,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:35:56,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:35:56,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:35:56,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:35:56,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:35:56,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:35:56,930 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:35:56,931 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:35:56,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:35:56,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:35:56,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:35:56,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:35:56,932 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:35:56,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:35:56,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:35:56,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:35:56,933 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 [2025-03-17 19:35:57,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:35:57,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:35:57,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:35:57,209 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:35:57,210 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:35:57,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-17 19:35:58,392 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5148e7e6d/35b4f61e10344379a9e7793f3e28af93/FLAG8ccaf9d14 [2025-03-17 19:35:58,736 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:35:58,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-17 19:35:58,761 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5148e7e6d/35b4f61e10344379a9e7793f3e28af93/FLAG8ccaf9d14 [2025-03-17 19:35:58,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5148e7e6d/35b4f61e10344379a9e7793f3e28af93 [2025-03-17 19:35:58,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:35:58,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:35:58,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:35:58,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:35:58,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:35:58,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:35:58" (1/1) ... [2025-03-17 19:35:58,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7abf173e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:58, skipping insertion in model container [2025-03-17 19:35:58,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:35:58" (1/1) ... [2025-03-17 19:35:59,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:35:59,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:35:59,355 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:35:59,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:35:59,446 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:35:59,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59 WrapperNode [2025-03-17 19:35:59,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:35:59,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:35:59,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:35:59,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:35:59,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,478 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2025-03-17 19:35:59,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:35:59,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:35:59,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:35:59,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:35:59,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,499 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]. [2025-03-17 19:35:59,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,503 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:35:59,507 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:35:59,507 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:35:59,507 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:35:59,507 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (1/1) ... [2025-03-17 19:35:59,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:35:59,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:35:59,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:35:59,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:35:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 19:35:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 19:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:35:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:35:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:35:59,552 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:35:59,637 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:35:59,639 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:35:59,769 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:35:59,769 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:35:59,842 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:35:59,842 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:35:59,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:35:59 BoogieIcfgContainer [2025-03-17 19:35:59,843 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:35:59,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:35:59,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:35:59,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:35:59,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:35:58" (1/3) ... [2025-03-17 19:35:59,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3620a21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:35:59, skipping insertion in model container [2025-03-17 19:35:59,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:59" (2/3) ... [2025-03-17 19:35:59,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3620a21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:35:59, skipping insertion in model container [2025-03-17 19:35:59,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:35:59" (3/3) ... [2025-03-17 19:35:59,857 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2025-03-17 19:35:59,870 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:35:59,872 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. [2025-03-17 19:35:59,872 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:35:59,905 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 19:35:59,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 90 flow [2025-03-17 19:35:59,954 INFO L124 PetriNetUnfolderBase]: 4/42 cut-off events. [2025-03-17 19:35:59,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:35:59,958 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. [2025-03-17 19:35:59,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 90 flow [2025-03-17 19:35:59,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 42 transitions, 87 flow [2025-03-17 19:35:59,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:35:59,977 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;@2b4e48d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:35:59,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-17 19:35:59,982 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:35:59,983 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2025-03-17 19:35:59,983 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:35:59,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:59,983 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:35:59,984 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)] === [2025-03-17 19:35:59,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1442007745, now seen corresponding path program 1 times [2025-03-17 19:35:59,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:59,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497953427] [2025-03-17 19:35:59,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:59,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:00,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:36:00,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:36:00,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:00,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:00,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:00,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497953427] [2025-03-17 19:36:00,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497953427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:00,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:00,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:36:00,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118736472] [2025-03-17 19:36:00,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:00,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:00,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:00,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:00,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:00,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2025-03-17 19:36:00,245 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) [2025-03-17 19:36:00,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:00,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2025-03-17 19:36:00,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:00,394 INFO L124 PetriNetUnfolderBase]: 97/268 cut-off events. [2025-03-17 19:36:00,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:36:00,395 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. [2025-03-17 19:36:00,397 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 35 selfloop transitions, 6 changer transitions 12/74 dead transitions. [2025-03-17 19:36:00,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 74 transitions, 257 flow [2025-03-17 19:36:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:36:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:36:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2025-03-17 19:36:00,409 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7767441860465116 [2025-03-17 19:36:00,411 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 87 flow. Second operand 5 states and 167 transitions. [2025-03-17 19:36:00,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 74 transitions, 257 flow [2025-03-17 19:36:00,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 74 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:36:00,416 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 128 flow [2025-03-17 19:36:00,418 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} [2025-03-17 19:36:00,424 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2025-03-17 19:36:00,424 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 128 flow [2025-03-17 19:36:00,424 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) [2025-03-17 19:36:00,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:00,424 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:00,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:36:00,424 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)] === [2025-03-17 19:36:00,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:00,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1735400998, now seen corresponding path program 1 times [2025-03-17 19:36:00,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:00,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433537876] [2025-03-17 19:36:00,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:00,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:00,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:36:00,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:36:00,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:00,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:00,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:00,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433537876] [2025-03-17 19:36:00,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433537876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:00,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:00,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:00,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114961932] [2025-03-17 19:36:00,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:00,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:00,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:00,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:00,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:00,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-17 19:36:00,521 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) [2025-03-17 19:36:00,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:00,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-17 19:36:00,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:00,666 INFO L124 PetriNetUnfolderBase]: 171/492 cut-off events. [2025-03-17 19:36:00,666 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2025-03-17 19:36:00,667 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. [2025-03-17 19:36:00,673 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 51 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2025-03-17 19:36:00,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 345 flow [2025-03-17 19:36:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:36:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:36:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2025-03-17 19:36:00,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6372093023255814 [2025-03-17 19:36:00,674 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 128 flow. Second operand 5 states and 137 transitions. [2025-03-17 19:36:00,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 345 flow [2025-03-17 19:36:00,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 345 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:36:00,677 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 195 flow [2025-03-17 19:36:00,677 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} [2025-03-17 19:36:00,678 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2025-03-17 19:36:00,678 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 195 flow [2025-03-17 19:36:00,678 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) [2025-03-17 19:36:00,678 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:00,678 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:00,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:36:00,678 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)] === [2025-03-17 19:36:00,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:00,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2037163544, now seen corresponding path program 1 times [2025-03-17 19:36:00,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:00,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491090048] [2025-03-17 19:36:00,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:00,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:00,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:36:00,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:36:00,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:00,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:00,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:00,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:00,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491090048] [2025-03-17 19:36:00,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491090048] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:00,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:00,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:36:00,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809534741] [2025-03-17 19:36:00,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:00,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:00,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:00,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:00,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:00,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-17 19:36:00,738 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) [2025-03-17 19:36:00,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:00,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-17 19:36:00,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:00,842 INFO L124 PetriNetUnfolderBase]: 171/495 cut-off events. [2025-03-17 19:36:00,843 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2025-03-17 19:36:00,844 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. [2025-03-17 19:36:00,846 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 9 changer transitions 6/65 dead transitions. [2025-03-17 19:36:00,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 336 flow [2025-03-17 19:36:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:36:00,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:36:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-03-17 19:36:00,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2025-03-17 19:36:00,847 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 195 flow. Second operand 4 states and 104 transitions. [2025-03-17 19:36:00,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 336 flow [2025-03-17 19:36:00,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 336 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:36:00,875 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 209 flow [2025-03-17 19:36:00,875 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} [2025-03-17 19:36:00,876 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-17 19:36:00,876 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 209 flow [2025-03-17 19:36:00,876 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) [2025-03-17 19:36:00,876 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:00,876 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:00,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:36:00,876 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)] === [2025-03-17 19:36:00,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:00,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2037143790, now seen corresponding path program 1 times [2025-03-17 19:36:00,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:00,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722116463] [2025-03-17 19:36:00,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:00,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:00,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:36:00,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:36:00,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:00,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:00,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:00,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:00,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722116463] [2025-03-17 19:36:00,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722116463] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:00,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:00,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:00,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256270797] [2025-03-17 19:36:00,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:00,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:00,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:00,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:00,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:00,921 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-17 19:36:00,921 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) [2025-03-17 19:36:00,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:00,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-17 19:36:00,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:01,007 INFO L124 PetriNetUnfolderBase]: 161/465 cut-off events. [2025-03-17 19:36:01,007 INFO L125 PetriNetUnfolderBase]: For 435/437 co-relation queries the response was YES. [2025-03-17 19:36:01,008 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. [2025-03-17 19:36:01,010 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 40 selfloop transitions, 6 changer transitions 2/64 dead transitions. [2025-03-17 19:36:01,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 348 flow [2025-03-17 19:36:01,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:36:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:36:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-03-17 19:36:01,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2025-03-17 19:36:01,011 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 209 flow. Second operand 4 states and 106 transitions. [2025-03-17 19:36:01,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 348 flow [2025-03-17 19:36:01,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 330 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:36:01,014 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 199 flow [2025-03-17 19:36:01,014 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} [2025-03-17 19:36:01,015 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-17 19:36:01,015 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 199 flow [2025-03-17 19:36:01,015 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) [2025-03-17 19:36:01,015 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:01,015 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:01,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:36:01,016 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)] === [2025-03-17 19:36:01,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1272439696, now seen corresponding path program 1 times [2025-03-17 19:36:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:01,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989692781] [2025-03-17 19:36:01,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:01,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:01,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:36:01,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:36:01,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:01,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:01,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:01,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989692781] [2025-03-17 19:36:01,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989692781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:01,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:01,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:01,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965352136] [2025-03-17 19:36:01,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:01,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:36:01,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:01,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:36:01,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:36:01,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-17 19:36:01,082 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) [2025-03-17 19:36:01,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:01,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-17 19:36:01,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:01,169 INFO L124 PetriNetUnfolderBase]: 149/441 cut-off events. [2025-03-17 19:36:01,169 INFO L125 PetriNetUnfolderBase]: For 392/396 co-relation queries the response was YES. [2025-03-17 19:36:01,170 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. [2025-03-17 19:36:01,172 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 34 selfloop transitions, 12 changer transitions 9/71 dead transitions. [2025-03-17 19:36:01,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 379 flow [2025-03-17 19:36:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:36:01,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:36:01,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-03-17 19:36:01,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5906976744186047 [2025-03-17 19:36:01,173 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 199 flow. Second operand 5 states and 127 transitions. [2025-03-17 19:36:01,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 379 flow [2025-03-17 19:36:01,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 71 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:36:01,176 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 211 flow [2025-03-17 19:36:01,176 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} [2025-03-17 19:36:01,177 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-17 19:36:01,177 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 211 flow [2025-03-17 19:36:01,177 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) [2025-03-17 19:36:01,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:01,177 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:01,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:36:01,177 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)] === [2025-03-17 19:36:01,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash 790925085, now seen corresponding path program 1 times [2025-03-17 19:36:01,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:01,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409821273] [2025-03-17 19:36:01,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:01,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:01,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:36:01,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:36:01,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:01,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:01,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:01,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409821273] [2025-03-17 19:36:01,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409821273] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:01,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:01,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:01,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945782560] [2025-03-17 19:36:01,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:01,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:36:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:01,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:36:01,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:36:01,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2025-03-17 19:36:01,252 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) [2025-03-17 19:36:01,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:01,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2025-03-17 19:36:01,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:01,369 INFO L124 PetriNetUnfolderBase]: 136/439 cut-off events. [2025-03-17 19:36:01,369 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2025-03-17 19:36:01,370 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. [2025-03-17 19:36:01,372 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 39 selfloop transitions, 10 changer transitions 4/68 dead transitions. [2025-03-17 19:36:01,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 379 flow [2025-03-17 19:36:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:36:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:36:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2025-03-17 19:36:01,373 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5503875968992248 [2025-03-17 19:36:01,373 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 211 flow. Second operand 6 states and 142 transitions. [2025-03-17 19:36:01,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 379 flow [2025-03-17 19:36:01,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 68 transitions, 365 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:36:01,377 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 209 flow [2025-03-17 19:36:01,377 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} [2025-03-17 19:36:01,378 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 16 predicate places. [2025-03-17 19:36:01,378 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 209 flow [2025-03-17 19:36:01,378 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) [2025-03-17 19:36:01,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:01,378 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:01,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:36:01,378 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)] === [2025-03-17 19:36:01,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:01,379 INFO L85 PathProgramCache]: Analyzing trace with hash 934695449, now seen corresponding path program 1 times [2025-03-17 19:36:01,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:01,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703990486] [2025-03-17 19:36:01,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:01,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:01,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:36:01,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:36:01,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:01,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:01,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:01,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703990486] [2025-03-17 19:36:01,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703990486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:01,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:01,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:36:01,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232699247] [2025-03-17 19:36:01,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:01,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:01,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:01,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:01,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:01,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2025-03-17 19:36:01,449 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) [2025-03-17 19:36:01,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:01,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2025-03-17 19:36:01,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:01,537 INFO L124 PetriNetUnfolderBase]: 137/433 cut-off events. [2025-03-17 19:36:01,537 INFO L125 PetriNetUnfolderBase]: For 509/513 co-relation queries the response was YES. [2025-03-17 19:36:01,539 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. [2025-03-17 19:36:01,540 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 40 selfloop transitions, 8 changer transitions 7/73 dead transitions. [2025-03-17 19:36:01,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 73 transitions, 437 flow [2025-03-17 19:36:01,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:36:01,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:36:01,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2025-03-17 19:36:01,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7348837209302326 [2025-03-17 19:36:01,542 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 209 flow. Second operand 5 states and 158 transitions. [2025-03-17 19:36:01,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 73 transitions, 437 flow [2025-03-17 19:36:01,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 73 transitions, 399 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-17 19:36:01,544 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 233 flow [2025-03-17 19:36:01,544 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} [2025-03-17 19:36:01,545 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2025-03-17 19:36:01,545 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 233 flow [2025-03-17 19:36:01,545 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) [2025-03-17 19:36:01,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:01,545 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:01,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:36:01,545 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)] === [2025-03-17 19:36:01,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:01,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1089212708, now seen corresponding path program 1 times [2025-03-17 19:36:01,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:01,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475974777] [2025-03-17 19:36:01,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:01,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:01,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:36:01,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:36:01,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:01,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:01,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:01,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475974777] [2025-03-17 19:36:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475974777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262049272] [2025-03-17 19:36:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:01,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:01,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:01,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:01,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:01,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-17 19:36:01,587 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) [2025-03-17 19:36:01,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:01,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-17 19:36:01,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:01,665 INFO L124 PetriNetUnfolderBase]: 178/506 cut-off events. [2025-03-17 19:36:01,665 INFO L125 PetriNetUnfolderBase]: For 584/584 co-relation queries the response was YES. [2025-03-17 19:36:01,666 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. [2025-03-17 19:36:01,668 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 49 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2025-03-17 19:36:01,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 402 flow [2025-03-17 19:36:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:36:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:36:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2025-03-17 19:36:01,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.586046511627907 [2025-03-17 19:36:01,670 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 233 flow. Second operand 5 states and 126 transitions. [2025-03-17 19:36:01,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 402 flow [2025-03-17 19:36:01,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:36:01,672 INFO L231 Difference]: Finished difference. Result has 67 places, 51 transitions, 254 flow [2025-03-17 19:36:01,672 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} [2025-03-17 19:36:01,675 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2025-03-17 19:36:01,675 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 51 transitions, 254 flow [2025-03-17 19:36:01,675 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) [2025-03-17 19:36:01,675 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:01,675 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:01,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:36:01,675 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)] === [2025-03-17 19:36:01,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash 594144561, now seen corresponding path program 1 times [2025-03-17 19:36:01,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:01,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025202753] [2025-03-17 19:36:01,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:01,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:01,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:36:01,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:36:01,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:01,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:01,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:01,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:01,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025202753] [2025-03-17 19:36:01,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025202753] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:01,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:01,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:01,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646820164] [2025-03-17 19:36:01,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:01,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:01,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:01,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:01,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:01,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2025-03-17 19:36:01,742 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) [2025-03-17 19:36:01,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:01,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2025-03-17 19:36:01,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:01,834 INFO L124 PetriNetUnfolderBase]: 173/487 cut-off events. [2025-03-17 19:36:01,834 INFO L125 PetriNetUnfolderBase]: For 772/774 co-relation queries the response was YES. [2025-03-17 19:36:01,836 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. [2025-03-17 19:36:01,838 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 40 selfloop transitions, 5 changer transitions 10/69 dead transitions. [2025-03-17 19:36:01,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 430 flow [2025-03-17 19:36:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:36:01,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:36:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2025-03-17 19:36:01,839 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2025-03-17 19:36:01,839 INFO L175 Difference]: Start difference. First operand has 67 places, 51 transitions, 254 flow. Second operand 5 states and 128 transitions. [2025-03-17 19:36:01,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 430 flow [2025-03-17 19:36:01,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:36:01,843 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 232 flow [2025-03-17 19:36:01,843 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} [2025-03-17 19:36:01,844 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2025-03-17 19:36:01,845 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 232 flow [2025-03-17 19:36:01,845 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) [2025-03-17 19:36:01,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:01,845 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:01,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 19:36:01,845 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)] === [2025-03-17 19:36:01,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:01,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1239260234, now seen corresponding path program 1 times [2025-03-17 19:36:01,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:01,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701643482] [2025-03-17 19:36:01,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:01,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:01,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 19:36:01,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 19:36:01,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:01,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:01,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701643482] [2025-03-17 19:36:01,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701643482] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:01,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:01,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:01,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674030670] [2025-03-17 19:36:01,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:01,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:01,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:01,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:01,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2025-03-17 19:36:01,895 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) [2025-03-17 19:36:01,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:01,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2025-03-17 19:36:01,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:01,972 INFO L124 PetriNetUnfolderBase]: 167/455 cut-off events. [2025-03-17 19:36:01,972 INFO L125 PetriNetUnfolderBase]: For 567/567 co-relation queries the response was YES. [2025-03-17 19:36:01,973 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. [2025-03-17 19:36:01,975 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 38 selfloop transitions, 8 changer transitions 2/60 dead transitions. [2025-03-17 19:36:01,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 373 flow [2025-03-17 19:36:01,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:36:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:36:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2025-03-17 19:36:01,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2025-03-17 19:36:01,976 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 232 flow. Second operand 4 states and 97 transitions. [2025-03-17 19:36:01,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 373 flow [2025-03-17 19:36:01,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 60 transitions, 347 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-03-17 19:36:01,978 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 216 flow [2025-03-17 19:36:01,978 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} [2025-03-17 19:36:01,979 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2025-03-17 19:36:01,979 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 216 flow [2025-03-17 19:36:01,979 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) [2025-03-17 19:36:01,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:01,979 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:01,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 19:36:01,979 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)] === [2025-03-17 19:36:01,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:01,979 INFO L85 PathProgramCache]: Analyzing trace with hash -237638269, now seen corresponding path program 1 times [2025-03-17 19:36:01,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:01,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730128497] [2025-03-17 19:36:01,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:01,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:01,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:36:01,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:36:01,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:01,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:02,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:02,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730128497] [2025-03-17 19:36:02,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730128497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:02,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:02,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:36:02,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661750569] [2025-03-17 19:36:02,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:02,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:36:02,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:02,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:36:02,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:36:02,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 43 [2025-03-17 19:36:02,032 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) [2025-03-17 19:36:02,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:02,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 43 [2025-03-17 19:36:02,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:02,093 INFO L124 PetriNetUnfolderBase]: 135/405 cut-off events. [2025-03-17 19:36:02,093 INFO L125 PetriNetUnfolderBase]: For 452/452 co-relation queries the response was YES. [2025-03-17 19:36:02,094 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. [2025-03-17 19:36:02,095 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 25 selfloop transitions, 6 changer transitions 13/57 dead transitions. [2025-03-17 19:36:02,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 338 flow [2025-03-17 19:36:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:36:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:36:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2025-03-17 19:36:02,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2025-03-17 19:36:02,096 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 216 flow. Second operand 4 states and 96 transitions. [2025-03-17 19:36:02,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 338 flow [2025-03-17 19:36:02,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 322 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:36:02,098 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 176 flow [2025-03-17 19:36:02,098 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} [2025-03-17 19:36:02,098 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2025-03-17 19:36:02,098 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 176 flow [2025-03-17 19:36:02,098 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) [2025-03-17 19:36:02,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:02,098 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:02,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 19:36:02,098 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)] === [2025-03-17 19:36:02,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:02,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1603243139, now seen corresponding path program 1 times [2025-03-17 19:36:02,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:02,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957928904] [2025-03-17 19:36:02,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:02,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:02,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:36:02,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:36:02,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:02,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:02,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:02,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:02,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957928904] [2025-03-17 19:36:02,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957928904] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:02,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:02,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:02,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159075537] [2025-03-17 19:36:02,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:02,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:02,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:02,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:02,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:02,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-17 19:36:02,178 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) [2025-03-17 19:36:02,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:02,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-17 19:36:02,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:02,274 INFO L124 PetriNetUnfolderBase]: 79/237 cut-off events. [2025-03-17 19:36:02,274 INFO L125 PetriNetUnfolderBase]: For 344/351 co-relation queries the response was YES. [2025-03-17 19:36:02,274 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. [2025-03-17 19:36:02,275 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 39 selfloop transitions, 5 changer transitions 1/57 dead transitions. [2025-03-17 19:36:02,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 326 flow [2025-03-17 19:36:02,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:36:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:36:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2025-03-17 19:36:02,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6124031007751938 [2025-03-17 19:36:02,276 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 176 flow. Second operand 6 states and 158 transitions. [2025-03-17 19:36:02,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 326 flow [2025-03-17 19:36:02,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 299 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-03-17 19:36:02,278 INFO L231 Difference]: Finished difference. Result has 55 places, 39 transitions, 153 flow [2025-03-17 19:36:02,278 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} [2025-03-17 19:36:02,278 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2025-03-17 19:36:02,278 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 153 flow [2025-03-17 19:36:02,278 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) [2025-03-17 19:36:02,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:02,278 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:02,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:36:02,279 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)] === [2025-03-17 19:36:02,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1894330270, now seen corresponding path program 1 times [2025-03-17 19:36:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:02,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383244859] [2025-03-17 19:36:02,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:02,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:02,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:36:02,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:36:02,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:02,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:02,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:02,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383244859] [2025-03-17 19:36:02,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383244859] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:02,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:02,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:02,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481962844] [2025-03-17 19:36:02,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:02,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:02,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:02,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:02,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:02,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-17 19:36:02,360 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) [2025-03-17 19:36:02,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:02,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-17 19:36:02,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:02,458 INFO L124 PetriNetUnfolderBase]: 72/221 cut-off events. [2025-03-17 19:36:02,459 INFO L125 PetriNetUnfolderBase]: For 260/267 co-relation queries the response was YES. [2025-03-17 19:36:02,459 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. [2025-03-17 19:36:02,460 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 10 changer transitions 1/57 dead transitions. [2025-03-17 19:36:02,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 310 flow [2025-03-17 19:36:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:36:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:36:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2025-03-17 19:36:02,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5784883720930233 [2025-03-17 19:36:02,462 INFO L175 Difference]: Start difference. First operand has 55 places, 39 transitions, 153 flow. Second operand 8 states and 199 transitions. [2025-03-17 19:36:02,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 310 flow [2025-03-17 19:36:02,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 296 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-17 19:36:02,464 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 171 flow [2025-03-17 19:36:02,464 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} [2025-03-17 19:36:02,465 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-17 19:36:02,465 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 171 flow [2025-03-17 19:36:02,465 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) [2025-03-17 19:36:02,465 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:02,465 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:02,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 19:36:02,465 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)] === [2025-03-17 19:36:02,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash -796202680, now seen corresponding path program 1 times [2025-03-17 19:36:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:02,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939087414] [2025-03-17 19:36:02,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:02,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:02,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 19:36:02,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 19:36:02,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:02,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:02,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:02,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939087414] [2025-03-17 19:36:02,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939087414] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:02,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:02,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:02,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460025717] [2025-03-17 19:36:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:02,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:02,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:02,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:02,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:02,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-17 19:36:02,533 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) [2025-03-17 19:36:02,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:02,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-17 19:36:02,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:02,612 INFO L124 PetriNetUnfolderBase]: 68/212 cut-off events. [2025-03-17 19:36:02,612 INFO L125 PetriNetUnfolderBase]: For 273/282 co-relation queries the response was YES. [2025-03-17 19:36:02,612 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. [2025-03-17 19:36:02,613 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 20 selfloop transitions, 7 changer transitions 23/62 dead transitions. [2025-03-17 19:36:02,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 348 flow [2025-03-17 19:36:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 19:36:02,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 19:36:02,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 221 transitions. [2025-03-17 19:36:02,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5710594315245479 [2025-03-17 19:36:02,614 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 171 flow. Second operand 9 states and 221 transitions. [2025-03-17 19:36:02,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 348 flow [2025-03-17 19:36:02,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 328 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-17 19:36:02,615 INFO L231 Difference]: Finished difference. Result has 59 places, 35 transitions, 146 flow [2025-03-17 19:36:02,615 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} [2025-03-17 19:36:02,615 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2025-03-17 19:36:02,615 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 35 transitions, 146 flow [2025-03-17 19:36:02,615 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) [2025-03-17 19:36:02,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:36:02,615 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:02,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 19:36:02,615 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)] === [2025-03-17 19:36:02,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:36:02,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1405303618, now seen corresponding path program 1 times [2025-03-17 19:36:02,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:36:02,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402949026] [2025-03-17 19:36:02,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:36:02,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:36:02,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 19:36:02,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 19:36:02,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:36:02,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:36:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:36:02,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:36:02,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402949026] [2025-03-17 19:36:02,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402949026] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:36:02,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:36:02,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:36:02,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505657447] [2025-03-17 19:36:02,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:36:02,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:36:02,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:36:02,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:36:02,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:36:02,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2025-03-17 19:36:02,666 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) [2025-03-17 19:36:02,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:36:02,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2025-03-17 19:36:02,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:36:02,723 INFO L124 PetriNetUnfolderBase]: 27/108 cut-off events. [2025-03-17 19:36:02,724 INFO L125 PetriNetUnfolderBase]: For 127/131 co-relation queries the response was YES. [2025-03-17 19:36:02,724 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. [2025-03-17 19:36:02,724 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2025-03-17 19:36:02,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 218 flow [2025-03-17 19:36:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:36:02,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:36:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2025-03-17 19:36:02,725 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5377906976744186 [2025-03-17 19:36:02,725 INFO L175 Difference]: Start difference. First operand has 59 places, 35 transitions, 146 flow. Second operand 8 states and 185 transitions. [2025-03-17 19:36:02,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 218 flow [2025-03-17 19:36:02,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-17 19:36:02,725 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2025-03-17 19:36:02,726 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} [2025-03-17 19:36:02,726 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2025-03-17 19:36:02,726 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2025-03-17 19:36:02,726 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) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-03-17 19:36:02,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-03-17 19:36:02,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 19:36:02,729 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:36:02,732 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:36:02,732 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:36:02,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:36:02 BasicIcfg [2025-03-17 19:36:02,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:36:02,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:36:02,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:36:02,743 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:36:02,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:35:59" (3/4) ... [2025-03-17 19:36:02,745 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:36:02,747 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-17 19:36:02,750 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-17 19:36:02,750 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-17 19:36:02,750 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 19:36:02,750 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 19:36:02,801 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:36:02,801 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:36:02,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:36:02,802 INFO L158 Benchmark]: Toolchain (without parser) took 3827.00ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 111.2MB in the beginning and 140.5MB in the end (delta: -29.2MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2025-03-17 19:36:02,802 INFO L158 Benchmark]: CDTParser took 1.99ms. Allocated memory is still 226.5MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:02,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.26ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.6MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 19:36:02,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.96ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:36:02,805 INFO L158 Benchmark]: Boogie Preprocessor took 26.90ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:02,805 INFO L158 Benchmark]: IcfgBuilder took 336.05ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 60.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 19:36:02,806 INFO L158 Benchmark]: TraceAbstraction took 2898.01ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 59.6MB in the beginning and 145.6MB in the end (delta: -86.0MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2025-03-17 19:36:02,806 INFO L158 Benchmark]: Witness Printer took 58.53ms. Allocated memory is still 176.2MB. Free memory was 145.6MB in the beginning and 140.5MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:36:02,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.99ms. Allocated memory is still 226.5MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.26ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.6MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.96ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.90ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 336.05ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 60.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2898.01ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 59.6MB in the beginning and 145.6MB in the end (delta: -86.0MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * Witness Printer took 58.53ms. Allocated memory is still 176.2MB. Free memory was 145.6MB in the beginning and 140.5MB in the end (delta: 5.2MB). There was no memory consumed. 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: 2.8s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 670 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 268 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1416 IncrementalHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 110 mSDtfsCounter, 1416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s 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! [2025-03-17 19:36:02,820 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