./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:10:31,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:10:31,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:10:31,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:10:31,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:10:31,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:10:31,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:10:31,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:10:31,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:10:31,762 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:10:31,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:10:31,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:10:31,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:10:31,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:10:31,763 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:10:31,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:10:31,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:10:31,763 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:10:31,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:10:31,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:10:31,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:10:31,765 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:10:31,765 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:10:31,765 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:10:31,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:10:31,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:10:31,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:10:31,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:10:31,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:10:31,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:10:31,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:10:31,766 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-jdk21/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 -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2025-02-08 14:10:32,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:10:32,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:10:32,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:10:32,052 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:10:32,053 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:10:32,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-02-08 14:10:33,402 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13ee906ba/a9f9813650ea42f1a2467654824465dd/FLAGc6cba3c13 [2025-02-08 14:10:33,724 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:10:33,724 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-02-08 14:10:33,735 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13ee906ba/a9f9813650ea42f1a2467654824465dd/FLAGc6cba3c13 [2025-02-08 14:10:33,969 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13ee906ba/a9f9813650ea42f1a2467654824465dd [2025-02-08 14:10:33,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:10:33,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:10:33,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:10:33,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:10:33,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:10:33,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65abf7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:33, skipping insertion in model container [2025-02-08 14:10:33,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:10:33" (1/1) ... [2025-02-08 14:10:33,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:10:34,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:10:34,171 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:10:34,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:10:34,210 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:10:34,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34 WrapperNode [2025-02-08 14:10:34,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:10:34,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:10:34,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:10:34,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:10:34,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,253 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2025-02-08 14:10:34,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:10:34,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:10:34,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:10:34,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:10:34,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,266 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,285 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 14:10:34,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,293 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:10:34,298 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:10:34,301 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:10:34,302 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:10:34,303 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (1/1) ... [2025-02-08 14:10:34,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:10:34,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:34,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:10:34,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:10:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:10:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:10:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:10:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:10:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:10:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:10:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:10:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:10:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:10:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:10:34,365 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:10:34,454 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:10:34,455 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:10:34,716 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:10:34,716 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:10:34,871 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:10:34,872 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:10:34,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:34 BoogieIcfgContainer [2025-02-08 14:10:34,872 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:10:34,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:10:34,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:10:34,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:10:34,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:10:33" (1/3) ... [2025-02-08 14:10:34,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8a8122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:10:34, skipping insertion in model container [2025-02-08 14:10:34,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:34" (2/3) ... [2025-02-08 14:10:34,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8a8122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:10:34, skipping insertion in model container [2025-02-08 14:10:34,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:34" (3/3) ... [2025-02-08 14:10:34,881 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2025-02-08 14:10:34,899 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:10:34,901 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-3.wvr.c that has 4 procedures, 56 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-02-08 14:10:34,902 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:10:34,978 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:10:35,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 57 transitions, 135 flow [2025-02-08 14:10:35,067 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events. [2025-02-08 14:10:35,069 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:10:35,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 2/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 117 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2025-02-08 14:10:35,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 57 transitions, 135 flow [2025-02-08 14:10:35,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 52 transitions, 119 flow [2025-02-08 14:10:35,087 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:10:35,102 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;@4a4609da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:10:35,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2025-02-08 14:10:35,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:10:35,113 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-02-08 14:10:35,113 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:10:35,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:35,114 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:35,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:35,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash 769762888, now seen corresponding path program 1 times [2025-02-08 14:10:35,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:35,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362031947] [2025-02-08 14:10:35,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:35,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:35,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:10:35,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:10:35,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:35,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:35,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:35,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362031947] [2025-02-08 14:10:35,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362031947] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:35,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:35,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:35,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961495467] [2025-02-08 14:10:35,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:35,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:35,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:35,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:35,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:35,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:35,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-08 14:10:35,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:35,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:35,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:36,280 INFO L124 PetriNetUnfolderBase]: 4436/6535 cut-off events. [2025-02-08 14:10:36,281 INFO L125 PetriNetUnfolderBase]: For 223/223 co-relation queries the response was YES. [2025-02-08 14:10:36,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13013 conditions, 6535 events. 4436/6535 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 38056 event pairs, 3600 based on Foata normal form. 0/4167 useless extension candidates. Maximal degree in co-relation 12298. Up to 6186 conditions per place. [2025-02-08 14:10:36,347 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 39 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2025-02-08 14:10:36,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 49 transitions, 197 flow [2025-02-08 14:10:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:36,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:36,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2025-02-08 14:10:36,360 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43859649122807015 [2025-02-08 14:10:36,362 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 119 flow. Second operand 3 states and 75 transitions. [2025-02-08 14:10:36,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 49 transitions, 197 flow [2025-02-08 14:10:36,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 188 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:10:36,376 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2025-02-08 14:10:36,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2025-02-08 14:10:36,383 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-02-08 14:10:36,383 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2025-02-08 14:10:36,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-08 14:10:36,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:36,384 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:36,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:10:36,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:36,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 769762889, now seen corresponding path program 1 times [2025-02-08 14:10:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:36,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69234117] [2025-02-08 14:10:36,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:36,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:36,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:10:36,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:10:36,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:36,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:36,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:36,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69234117] [2025-02-08 14:10:36,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69234117] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:36,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:36,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:36,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773609678] [2025-02-08 14:10:36,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:36,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:36,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:36,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:36,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:36,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:36,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-08 14:10:36,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:36,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:36,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:37,172 INFO L124 PetriNetUnfolderBase]: 4489/6535 cut-off events. [2025-02-08 14:10:37,173 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-02-08 14:10:37,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12955 conditions, 6535 events. 4489/6535 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 36992 event pairs, 2498 based on Foata normal form. 0/4245 useless extension candidates. Maximal degree in co-relation 12931. Up to 6231 conditions per place. [2025-02-08 14:10:37,231 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 44 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2025-02-08 14:10:37,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 229 flow [2025-02-08 14:10:37,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:37,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-02-08 14:10:37,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4853801169590643 [2025-02-08 14:10:37,234 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 3 states and 83 transitions. [2025-02-08 14:10:37,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 229 flow [2025-02-08 14:10:37,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 223 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:37,237 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 140 flow [2025-02-08 14:10:37,237 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2025-02-08 14:10:37,238 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2025-02-08 14:10:37,238 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 140 flow [2025-02-08 14:10:37,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-08 14:10:37,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:37,238 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:37,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:10:37,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:37,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash 649590216, now seen corresponding path program 1 times [2025-02-08 14:10:37,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:37,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703742350] [2025-02-08 14:10:37,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:37,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:37,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:10:37,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:10:37,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:37,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:37,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703742350] [2025-02-08 14:10:37,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703742350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:37,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:37,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:37,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258058880] [2025-02-08 14:10:37,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:37,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:37,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:37,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:37,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:10:37,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:37,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-02-08 14:10:37,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:37,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:37,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:37,933 INFO L124 PetriNetUnfolderBase]: 3907/5814 cut-off events. [2025-02-08 14:10:37,934 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2025-02-08 14:10:37,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12137 conditions, 5814 events. 3907/5814 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 33243 event pairs, 867 based on Foata normal form. 0/3919 useless extension candidates. Maximal degree in co-relation 11101. Up to 5303 conditions per place. [2025-02-08 14:10:37,968 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 67 selfloop transitions, 9 changer transitions 0/83 dead transitions. [2025-02-08 14:10:37,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 83 transitions, 366 flow [2025-02-08 14:10:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:37,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2025-02-08 14:10:37,970 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5219298245614035 [2025-02-08 14:10:37,970 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 140 flow. Second operand 4 states and 119 transitions. [2025-02-08 14:10:37,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 83 transitions, 366 flow [2025-02-08 14:10:37,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 83 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:37,974 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 182 flow [2025-02-08 14:10:37,974 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2025-02-08 14:10:37,975 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2025-02-08 14:10:37,975 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 182 flow [2025-02-08 14:10:37,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-02-08 14:10:37,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:37,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:37,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:10:37,976 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:37,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:37,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2104256716, now seen corresponding path program 1 times [2025-02-08 14:10:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:37,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142906] [2025-02-08 14:10:37,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:37,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:37,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:10:37,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:10:37,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:37,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:38,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:38,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:38,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142906] [2025-02-08 14:10:38,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142906] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:38,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:38,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:38,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451999072] [2025-02-08 14:10:38,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:38,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:38,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:38,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:38,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:38,053 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:38,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-02-08 14:10:38,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:38,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:38,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:38,393 INFO L124 PetriNetUnfolderBase]: 2710/4048 cut-off events. [2025-02-08 14:10:38,394 INFO L125 PetriNetUnfolderBase]: For 1054/1054 co-relation queries the response was YES. [2025-02-08 14:10:38,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9237 conditions, 4048 events. 2710/4048 cut-off events. For 1054/1054 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 22219 event pairs, 2025 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 5648. Up to 3834 conditions per place. [2025-02-08 14:10:38,416 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 42 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2025-02-08 14:10:38,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 266 flow [2025-02-08 14:10:38,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-02-08 14:10:38,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2025-02-08 14:10:38,418 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 182 flow. Second operand 3 states and 72 transitions. [2025-02-08 14:10:38,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 266 flow [2025-02-08 14:10:38,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 248 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:38,420 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 164 flow [2025-02-08 14:10:38,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2025-02-08 14:10:38,420 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2025-02-08 14:10:38,420 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 164 flow [2025-02-08 14:10:38,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-02-08 14:10:38,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:38,423 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:38,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:10:38,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:38,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:38,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2104256717, now seen corresponding path program 1 times [2025-02-08 14:10:38,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:38,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121045596] [2025-02-08 14:10:38,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:38,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:38,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:10:38,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:10:38,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:38,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:38,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:38,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121045596] [2025-02-08 14:10:38,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121045596] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:38,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:38,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:10:38,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249788740] [2025-02-08 14:10:38,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:38,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:38,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:38,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:38,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:38,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:38,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-02-08 14:10:38,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:38,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:38,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:38,760 INFO L124 PetriNetUnfolderBase]: 2216/3302 cut-off events. [2025-02-08 14:10:38,761 INFO L125 PetriNetUnfolderBase]: For 725/725 co-relation queries the response was YES. [2025-02-08 14:10:38,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7452 conditions, 3302 events. 2216/3302 cut-off events. For 725/725 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 16833 event pairs, 604 based on Foata normal form. 0/2671 useless extension candidates. Maximal degree in co-relation 7423. Up to 2559 conditions per place. [2025-02-08 14:10:38,776 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 63 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2025-02-08 14:10:38,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 383 flow [2025-02-08 14:10:38,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:38,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:38,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2025-02-08 14:10:38,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2025-02-08 14:10:38,777 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 164 flow. Second operand 3 states and 93 transitions. [2025-02-08 14:10:38,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 383 flow [2025-02-08 14:10:38,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:38,780 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 194 flow [2025-02-08 14:10:38,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2025-02-08 14:10:38,781 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-02-08 14:10:38,781 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 194 flow [2025-02-08 14:10:38,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-02-08 14:10:38,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:38,783 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:38,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:10:38,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:38,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:38,784 INFO L85 PathProgramCache]: Analyzing trace with hash 939049124, now seen corresponding path program 1 times [2025-02-08 14:10:38,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:38,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219043969] [2025-02-08 14:10:38,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:38,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:38,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:10:38,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:10:38,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:38,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:38,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:38,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:38,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219043969] [2025-02-08 14:10:38,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219043969] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:38,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:38,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:10:38,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008790907] [2025-02-08 14:10:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:38,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:10:38,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:38,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:10:38,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:10:38,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:38,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-08 14:10:38,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:38,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:38,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:39,185 INFO L124 PetriNetUnfolderBase]: 1557/2491 cut-off events. [2025-02-08 14:10:39,186 INFO L125 PetriNetUnfolderBase]: For 848/848 co-relation queries the response was YES. [2025-02-08 14:10:39,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6036 conditions, 2491 events. 1557/2491 cut-off events. For 848/848 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 12761 event pairs, 82 based on Foata normal form. 0/2148 useless extension candidates. Maximal degree in co-relation 5313. Up to 1503 conditions per place. [2025-02-08 14:10:39,197 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 77 selfloop transitions, 12 changer transitions 0/96 dead transitions. [2025-02-08 14:10:39,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 96 transitions, 480 flow [2025-02-08 14:10:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:10:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:10:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2025-02-08 14:10:39,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47719298245614034 [2025-02-08 14:10:39,199 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 194 flow. Second operand 5 states and 136 transitions. [2025-02-08 14:10:39,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 96 transitions, 480 flow [2025-02-08 14:10:39,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 96 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:39,203 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 194 flow [2025-02-08 14:10:39,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2025-02-08 14:10:39,203 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-02-08 14:10:39,203 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 194 flow [2025-02-08 14:10:39,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-08 14:10:39,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:39,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:39,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:10:39,204 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:39,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:39,205 INFO L85 PathProgramCache]: Analyzing trace with hash -380154745, now seen corresponding path program 1 times [2025-02-08 14:10:39,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:39,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917970624] [2025-02-08 14:10:39,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:39,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:39,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 14:10:39,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:10:39,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:39,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:39,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:39,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917970624] [2025-02-08 14:10:39,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917970624] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:39,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:39,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:39,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642433854] [2025-02-08 14:10:39,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:39,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:39,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:39,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:39,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:10:39,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:39,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-02-08 14:10:39,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:39,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:39,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:39,534 INFO L124 PetriNetUnfolderBase]: 1361/2104 cut-off events. [2025-02-08 14:10:39,535 INFO L125 PetriNetUnfolderBase]: For 1539/1555 co-relation queries the response was YES. [2025-02-08 14:10:39,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5332 conditions, 2104 events. 1361/2104 cut-off events. For 1539/1555 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10030 event pairs, 244 based on Foata normal form. 16/1982 useless extension candidates. Maximal degree in co-relation 2737. Up to 842 conditions per place. [2025-02-08 14:10:39,546 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 71 selfloop transitions, 9 changer transitions 3/90 dead transitions. [2025-02-08 14:10:39,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 90 transitions, 496 flow [2025-02-08 14:10:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2025-02-08 14:10:39,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5131578947368421 [2025-02-08 14:10:39,548 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 194 flow. Second operand 4 states and 117 transitions. [2025-02-08 14:10:39,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 90 transitions, 496 flow [2025-02-08 14:10:39,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 90 transitions, 418 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-02-08 14:10:39,552 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 182 flow [2025-02-08 14:10:39,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=51, 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=182, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2025-02-08 14:10:39,554 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2025-02-08 14:10:39,555 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 182 flow [2025-02-08 14:10:39,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-02-08 14:10:39,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:39,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:39,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:10:39,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:39,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:39,556 INFO L85 PathProgramCache]: Analyzing trace with hash -313219597, now seen corresponding path program 1 times [2025-02-08 14:10:39,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:39,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76583777] [2025-02-08 14:10:39,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:39,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:39,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 14:10:39,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 14:10:39,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:39,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:39,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:39,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76583777] [2025-02-08 14:10:39,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76583777] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:39,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:39,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:39,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350314425] [2025-02-08 14:10:39,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:39,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:39,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:39,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:39,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:39,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 57 [2025-02-08 14:10:39,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-02-08 14:10:39,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:39,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 57 [2025-02-08 14:10:39,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:39,904 INFO L124 PetriNetUnfolderBase]: 2766/4143 cut-off events. [2025-02-08 14:10:39,905 INFO L125 PetriNetUnfolderBase]: For 2362/2362 co-relation queries the response was YES. [2025-02-08 14:10:39,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10066 conditions, 4143 events. 2766/4143 cut-off events. For 2362/2362 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 21338 event pairs, 974 based on Foata normal form. 0/3950 useless extension candidates. Maximal degree in co-relation 5743. Up to 2189 conditions per place. [2025-02-08 14:10:39,929 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 78 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2025-02-08 14:10:39,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 468 flow [2025-02-08 14:10:39,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2025-02-08 14:10:39,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5087719298245614 [2025-02-08 14:10:39,930 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 182 flow. Second operand 3 states and 87 transitions. [2025-02-08 14:10:39,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 468 flow [2025-02-08 14:10:39,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 85 transitions, 438 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:39,936 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 196 flow [2025-02-08 14:10:39,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2025-02-08 14:10:39,936 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2025-02-08 14:10:39,937 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 196 flow [2025-02-08 14:10:39,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-02-08 14:10:39,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:39,937 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:39,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:10:39,937 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-02-08 14:10:39,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1377721942, now seen corresponding path program 1 times [2025-02-08 14:10:39,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:39,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262045312] [2025-02-08 14:10:39,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:39,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:39,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:10:39,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:10:39,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:39,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:40,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:40,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262045312] [2025-02-08 14:10:40,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262045312] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:40,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:40,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:10:40,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604942768] [2025-02-08 14:10:40,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:40,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:10:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:40,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:10:40,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:10:40,045 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-02-08 14:10:40,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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) [2025-02-08 14:10:40,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:40,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-02-08 14:10:40,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:40,311 INFO L124 PetriNetUnfolderBase]: 2094/3288 cut-off events. [2025-02-08 14:10:40,311 INFO L125 PetriNetUnfolderBase]: For 1903/1943 co-relation queries the response was YES. [2025-02-08 14:10:40,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8153 conditions, 3288 events. 2094/3288 cut-off events. For 1903/1943 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 18031 event pairs, 351 based on Foata normal form. 108/3320 useless extension candidates. Maximal degree in co-relation 4541. Up to 1477 conditions per place. [2025-02-08 14:10:40,324 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 0 selfloop transitions, 0 changer transitions 89/89 dead transitions. [2025-02-08 14:10:40,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 89 transitions, 450 flow [2025-02-08 14:10:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:10:40,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:10:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2025-02-08 14:10:40,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4245614035087719 [2025-02-08 14:10:40,326 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 196 flow. Second operand 5 states and 121 transitions. [2025-02-08 14:10:40,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 89 transitions, 450 flow [2025-02-08 14:10:40,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 422 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:10:40,330 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2025-02-08 14:10:40,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2025-02-08 14:10:40,331 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-02-08 14:10:40,331 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2025-02-08 14:10:40,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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) [2025-02-08 14:10:40,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2025-02-08 14:10:40,335 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2025-02-08 14:10:40,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2025-02-08 14:10:40,337 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2025-02-08 14:10:40,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:10:40,338 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:40,343 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:10:40,343 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:10:40,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:10:40 BasicIcfg [2025-02-08 14:10:40,350 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:10:40,351 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:10:40,351 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:10:40,351 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:10:40,352 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:34" (3/4) ... [2025-02-08 14:10:40,354 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:10:40,357 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:10:40,357 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:10:40,357 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:10:40,361 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-08 14:10:40,361 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-08 14:10:40,361 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 14:10:40,361 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 14:10:40,425 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:10:40,426 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:10:40,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:10:40,427 INFO L158 Benchmark]: Toolchain (without parser) took 6453.80ms. Allocated memory was 167.8MB in the beginning and 310.4MB in the end (delta: 142.6MB). Free memory was 122.4MB in the beginning and 92.7MB in the end (delta: 29.7MB). Peak memory consumption was 173.3MB. Max. memory is 16.1GB. [2025-02-08 14:10:40,427 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 201.3MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:10:40,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.32ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 110.8MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:40,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.78ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:40,427 INFO L158 Benchmark]: Boogie Preprocessor took 43.02ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 107.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:10:40,427 INFO L158 Benchmark]: IcfgBuilder took 574.87ms. Allocated memory is still 167.8MB. Free memory was 107.8MB in the beginning and 73.3MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:10:40,428 INFO L158 Benchmark]: TraceAbstraction took 5476.04ms. Allocated memory was 167.8MB in the beginning and 310.4MB in the end (delta: 142.6MB). Free memory was 72.9MB in the beginning and 98.1MB in the end (delta: -25.2MB). Peak memory consumption was 114.6MB. Max. memory is 16.1GB. [2025-02-08 14:10:40,428 INFO L158 Benchmark]: Witness Printer took 74.82ms. Allocated memory is still 310.4MB. Free memory was 98.1MB in the beginning and 92.7MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:40,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 201.3MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.32ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 110.8MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.78ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.02ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 107.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 574.87ms. Allocated memory is still 167.8MB. Free memory was 107.8MB in the beginning and 73.3MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5476.04ms. Allocated memory was 167.8MB in the beginning and 310.4MB in the end (delta: 142.6MB). Free memory was 72.9MB in the beginning and 98.1MB in the end (delta: -25.2MB). Peak memory consumption was 114.6MB. Max. memory is 16.1GB. * Witness Printer took 74.82ms. Allocated memory is still 310.4MB. Free memory was 98.1MB in the beginning and 92.7MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 95 locations, 27 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: 5.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 275 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 272 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 746 IncrementalHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 2 mSDtfsCounter, 746 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=8, InterpolantAutomatonStates: 33, 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, 0.8s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:10:40,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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